SPANSION AM29PDL310G98WSIN 64 megabit (4 m x 16-bit) cmos 3.0 volt-only, simultaneous read/write flash memory with enhanced versatileio control Datasheet

Am29PDL640G
Data Sheet
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Publication Number 26573 Revision B
Amendment +1 Issue Date February 26, 2003
PRELIMINARY
Am29PDL640G
64 Megabit (4 M x 16-Bit) CMOS 3.0 Volt-only, Simultaneous Read/Write Flash
Memory with Enhanced VersatileIOTM Control
DISTINCTIVE CHARACTERISTICS
ARCHITECTURAL ADVANTAGES
SOFTWARE FEATURES
■ 64 Mbit Page Mode device
■ Software command-set compatible with JEDEC 42.4
standard
— Page size of 8 words: Fast page read access from random
locations within the page
■ Single power supply operation
— Full Voltage range: 2.7 to 3.1 volt read, erase, and program
operations for battery-powered applications
■ Simultaneous Read/Write Operation
— Data can be continuously read from one bank while
executing erase/program functions in another bank
— Zero latency switching from write to read operations
■ FlexBank Architecture
— Backward compatible with Am29F and Am29LV families
■ CFI (Common Flash Interface) complaint
— Provides device-specific information to the system, allowing
host software to easily reconfigure for different Flash devices
■ Erase Suspend / Erase Resume
— Suspends an erase operation to allow read or program
operations in other sectors of same bank
■ Unlock Bypass Program command
— Reduces overall programming time when issuing multiple
program command sequences
— 4 separate banks, with up to two simultaneous operations
per device
— Bank A: 8 Mbit (4 Kw x 8 and 32Kw x 15)
HARDWARE FEATURES
— Bank B: 24 Mbit (32 Kw x 48)
■ Ready/Busy# pin (RY/BY#)
— Bank C: 24 Mbit (32 Kw x 48)
— Bank D: 8 Mbit (4 Kw x 8 and 32 Kw x 15)
■ Enhanced VersatileI/OTM (VIO) Control
— Output voltage generated and input voltages tolerated on all
control inputs and I/Os is determined by the voltage on the
VIO pin
■ SecSiTM (Secured Silicon) Sector region
— Up to 128 words accessible through a command sequence
■ Both top and bottom boot blocks in one device
■ Manufactured on 0.17 µm process technology
■ 20-year data retention at 125°C
— Provides a hardware method of detecting program or erase
cycle completion
■ Hardware reset pin (RESET#)
— Hardware method to reset the device to reading array data
■ WP#/ACC (Write Protect/Accelerate) input
— At VIL, protects the first and last two 4K word sectors,
regardless of sector protect/unprotect status
— At VIH, allows removal of sector protection
— At VHH, provides faster programming times in a factory
setting
■ Persistent Sector Protection
■ Minimum 1 million erase cycle guarantee per sector
— A command sector protection method to lock combinations
of individual sectors and sector groups to prevent program or
erase operations within that sector
PERFORMANCE CHARACTERISTICS
— Sectors can be locked and unlocked in-system at VCC level
■ High Performance
— Page access times as fast as 25 ns
— Random access times as fast as 65 ns
■ Power consumption (typical values at 10 MHz)
— 25 mA active read current
— 15 mA program/erase current
— 0.2 µA typical standby mode current
■ Password Sector Protection
— A sophisticated sector protection method to lock
combinations of individual sectors and sector groups to
prevent program or erase operations within that sector using
a user-defined 64-bit password
■ Package options
— 63-ball Fine-pitch BGA
— 80-ball Fine-pitch BGA
This document contains information on a product under development at Advanced Micro Devices. The information
is intended to help you evaluate this product. AMD reserves the right to change or discontinue work on this proposed
product without notice.
Publication# 26573 Rev: B Amendment/+1
Issue Date: February 26, 2003
P R E L I M I N A R Y
GENERAL DESCRIPTION
The Am29PDL640G is a 64 Mbit, 3.0 volt-only Page Mode
and Simultaneous Read/Write Flash memory device organized as 4 Mwords. The device is offered in 63- or 80-ball
Fine-pitch BGA packages. The word-wide data (x16) appears on DQ15-DQ0. This device can be programmed
in-system or in standard EPROM programmers. A 12.0 V
VPP is not required for write or erase operations.
The device offers fast page access times of 25, 30, and 45
ns, with corresponding random access times of 65, 70, 85,
and 90 ns, respectively, allowing high speed microprocessors to operate without wait states. To eliminate bus contention the device has separate chip enable (CE#), write enable
(WE#) and output enable (OE#) controls.
Simultaneous Read/Write Operation with
Zero Latency
The Simultaneous Read/Write architecture provides simultaneous operation by dividing the memory space into 4
banks, which can be considered to be four separate memory
arrays as far as certain operations are concerned. The device can improve overall system performance by allowing a
host system to program or erase in one bank, then immediately and simultaneously read from another bank with zero
latency (with two simultaneous operations operating at any
one time). This releases the system from waiting for the
completion of a program or erase operation, greatly improving system performance.
The device can be organized in both top and bottom sector
configurations. The banks are organized as follows:
Bank
Sectors
A
8 Mbit (4 Kw x 8 and 32 Kw x 15)
B
24 Mbit (32 Kw x 48)
C
24 Mbit (32 Kw x 48)
D
8 Mbit (4 Kw x 8 and 32 Kw x 15)
Page Mode Features
The device is AC timing, input/output, and package compatible with 4 Mbit x16 page mode mask ROM. The page size
is 8 words.
After initial page access is accomplished, the page mode operation provides fast read access speed of random locations
within that page.
Standard Flash Memory Features
The device requires a single 3.0 volt power supply (2.7 V
to 3.1 V) for both read and write functions. Internally generated and regulated voltages are provided for the program
and erase operations.
2
The device is entirely command set compatible with the
JEDEC 42.4 single-power-supply Flash standard. Commands are written to the command register using standard
microprocessor write timing. Register contents serve as inputs to an internal state-machine that controls the erase and
programming circuitry. Write cycles also internally latch addresses and data needed for the programming and erase
operations. Reading data out of the device is similar to reading from other Flash or EPROM devices.
Device programming occurs by executing the program command sequence. The Unlock Bypass mode facilitates faster
programming times by requiring only two write cycles to program data instead of four. Device erasure occurs by executing the erase command sequence.
The host system can detect whether a program or erase operation is complete by reading the DQ7 (Data# Polling) and
DQ6 (toggle) status bits. After a program or erase cycle has
been completed, the device is ready to read array data or
accept another command.
The sector erase architecture allows memory sectors to be
erased and reprogrammed without affecting the data contents of other sectors. The device is fully erased when
shipped from the factory.
Hardware data protection measures include a low VCC detector that automatically inhibits write operations during
power transitions. The hardware sector protection feature
disables both program and erase operations in any combination of sectors of memory. This can be achieved in-system
or via programming equipment.
The Erase Suspend/Erase Resume feature enables the
user to put erase on hold for any period of time to read data
from, or program data to, any sector that is not selected for
erasure. True background erase can thus be achieved. If a
read is needed from the SecSi Sector area (One Time Program area) after an erase suspend, then the user must use
the proper command sequence to enter and exit this region.
The device offers two power-saving features. When addresses have been stable for a specified amount of time, the
device enters the automatic sleep mode. The system can
also place the device into the standby mode. Power consumption is greatly reduced in both these modes.
AMD’s Flash technology combined years of Flash memory
manufacturing experience to produce the highest levels of
quality, reliability and cost effectiveness. The device electrically erases all bits within a sector simultaneously via
Fowler-Nordheim tunneling. The data is programmed using
hot electron injection.
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
TABLE OF CONTENTS
Product Selector Guide . . . . . . . . . . . . . . . . . . . . . 5
Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Simultaneous READ/Write Block Diagram . . . . . 6
Connection Diagrams . . . . . . . . . . . . . . . . . . . . . . 7
Ordering Information . . . . . . . . . . . . . . . . . . . . . . 10
Device Bus Operations . . . . . . . . . . . . . . . . . . . . 11
Word Program Command Sequence ...................................... 29
Unlock Bypass Command Sequence ..................................... 29
Figure 4. Program Operation ......................................................... 30
Chip Erase Command Sequence ........................................... 30
Sector Erase Command Sequence ........................................ 30
Erase Suspend/Erase Resume Commands ........................... 31
Table 1. Am29PDL640G Device Bus Operations ...........................11
Figure 5. Erase Operation.............................................................. 31
Requirements for Reading Array Data ................................... 11
Random Read (Non-Page Read) ........................................... 11
Page Mode Read .................................................................... 11
Password Program Command ................................................ 31
Password Verify Command .................................................... 32
Password Protection Mode Locking Bit Program Command .. 32
Persistent Sector Protection Mode Locking Bit Program
Command ............................................................................... 32
SecSi Sector Protection Bit Program Command .................... 32
PPB Lock Bit Set Command ................................................... 32
DYB Write Command ............................................................. 32
Password Unlock Command .................................................. 33
PPB Program Command ........................................................ 33
All PPB Erase Command ........................................................ 33
DYB Write Command ............................................................. 33
PPB Lock Bit Set Command ................................................... 33
PPB Status Command ............................................................ 33
PPB Lock Bit Status Command .............................................. 33
Sector Protection Status Command ....................................... 33
Table 2. Page Select .......................................................................12
Simultaneous Operation ......................................................... 12
Table 3. Bank Select .......................................................................12
Writing Commands/Command Sequences ............................ 12
Accelerated Program Operation ............................................. 12
Autoselect Functions .............................................................. 12
Automatic Sleep Mode ........................................................... 13
RESET#: Hardware Reset Pin ............................................... 13
Output Disable Mode .............................................................. 13
Table 4. Am29PDL640G Sector Architecture .................................13
Table 5. Bank Address ....................................................................15
Table 6. SecSiTM Sector Addresses ...............................................15
Table 7. Autoselect Codes (High Voltage Method) ........................16
Table 8. Am29PDL640G Boot Sector/Sector Block Addresses for
Protection/Unprotection ...................................................................16
Sector Protection . . . . . . . . . . . . . . . . . . . . . . . . . 17
Persistent Sector Protection ................................................... 17
Persistent Protection Bit (PPB) ............................................... 17
Persistent Protection Bit Lock (PPB Lock) ............................. 17
Dynamic Protection Bit (DYB) ................................................ 17
Table 9. Sector Protection Schemes ...............................................18
Persistent Sector Protection Mode Locking Bit ...................... 18
Password Protection Mode ..................................................... 18
Password and Password Mode Locking Bit ........................... 19
64-bit Password ...................................................................... 19
Write Protect (WP#) ................................................................ 19
Persistent Protection Bit Lock ................................................. 19
High Voltage Sector Protection .............................................. 20
Figure 1. In-System Sector Protection/
Sector Unprotection Algorithms ...................................................... 21
Temporary Sector Unprotect .................................................. 22
Table 14. Memory Array Command Definitions ............................. 34
Table 15. Sector Protection Command Definitions ........................ 35
Write Operation Status . . . . . . . . . . . . . . . . . . . . . 36
DQ7: Data# Polling ................................................................. 36
Figure 6. Data# Polling Algorithm .................................................. 36
DQ6: Toggle Bit I .................................................................... 37
Figure 7. Toggle Bit Algorithm........................................................ 37
DQ2: Toggle Bit II ................................................................... 38
Reading Toggle Bits DQ6/DQ2 ............................................... 38
DQ5: Exceeded Timing Limits ................................................ 38
DQ3: Sector Erase Timer ....................................................... 38
Table 16. Write Operation Status ................................................... 39
Absolute Maximum Ratings. . . . . . . . . . . . . . . . . 40
Figure 8. Maximum Negative Overshoot Waveform ...................... 40
Figure 9. Maximum Positive Overshoot Waveform........................ 40
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 41
Test Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 2. Temporary Sector Unprotect Operation........................... 22
Figure 10. Test Setup.................................................................... 42
Figure 11. Input Waveforms and Measurement Levels ................. 42
SecSi™ (Secured Silicon) Sector
Flash Memory Region ............................................................ 22
SecSi Sector Protection Bit .................................................... 23
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 43
Read-Only Operations ........................................................... 43
Figure 3. SecSi Sector Protect Verify.............................................. 23
Hardware Data Protection ...................................................... 23
Low VCC Write Inhibit ............................................................ 23
Write Pulse “Glitch” Protection ............................................... 23
Logical Inhibit .......................................................................... 23
Power-Up Write Inhibit ............................................................ 23
Command Definitions . . . . . . . . . . . . . . . . . . . . . 28
Reading Array Data ................................................................ 28
Reset Command ..................................................................... 28
Autoselect Command Sequence ............................................ 28
Enter SecSi™ Sector/Exit SecSi Sector
Command Sequence .............................................................. 29
February 26, 2003
Figure 12. Read Operation Timings ............................................... 43
Figure 13. Page Read Operation Timings...................................... 44
Hardware Reset (RESET#) .................................................... 45
Figure 14. Reset Timings............................................................... 45
Erase and Program Operations .............................................. 46
Figure 15. Program Operation Timings..........................................
Figure 16. Accelerated Program Timing Diagram..........................
Figure 17. Chip/Sector Erase Operation Timings ..........................
Figure 18. Back-to-back Read/Write Cycle Timings ......................
Figure 19. Data# Polling Timings (During Embedded Algorithms).
Figure 20. Toggle Bit Timings (During Embedded Algorithms)......
Figure 21. DQ2 vs. DQ6.................................................................
47
47
48
49
49
50
50
Temporary Sector Unprotect .................................................. 51
Figure 22. Temporary Sector Unprotect Timing Diagram .............. 51
Am29PDL640G
3
P R E L I M I N A R Y
Figure 23. Sector/Sector Block Protect and
Unprotect Timing Diagram .............................................................. 52
Alternate CE# Controlled Erase and Program Operations ..... 53
Figure 24. Alternate CE# Controlled Write (Erase/Program)
Operation Timings........................................................................... 54
Erase And Programming Performance . . . . . . .
Latchup Characteristics . . . . . . . . . . . . . . . . . . .
BGA Ball Capacitance . . . . . . . . . . . . . . . . . . . . .
Data Retention . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
55
55
55
55
Physical Dimensions . . . . . . . . . . . . . . . . . . . . . . 56
FBE080—80-Ball Fine-pitch Ball Grid Array
12 x 11 mm package .............................................................. 56
FBE063—63-Ball Fine-pitch Ball Grid Array
12 x 11 mm package .............................................................. 57
Revision Summary . . . . . . . . . . . . . . . . . . . . . . . . 58
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
PRODUCT SELECTOR GUIDE
Part Number
Am29PDL640G
VCC, VIO = 2.7–3.1 V
Speed Option
63
73
83
VCC = 2.7–3.1 V, VIO= 1.65–1.95 V
98
Max Access Time, ns (tACC)
65
70
85
90
Max CE# Access, ns (tCE)
65
70
85
90
Max Page Access, ns (tPACC)
25
25
30
45
Max OE# Access, ns (tOE)
25
25
30
45
BLOCK DIAGRAM
DQ15–DQ0
RY/BY# (See Note)
VCC
VSS
Sector
Switches
VIO
RESET#
Input/Output
Buffers
Erase Voltage
Generator
WE#
State
Control
Command
Register
PGM Voltage
Generator
Chip Enable
Output Enable
Logic
CE#
OE#
A21–A3
Timer
Y-Decoder
STB
Address Latch
VCC Detector
X-Decoder
STB
Data Latch
Y-Gating
Cell Matrix
A2–A0
Note:RY/BY# is an open drain output.
February 26, 2003
Am29PDL640G
5
P R E L I M I N A R Y
SIMULTANEOUS READ/WRITE BLOCK DIAGRAM
VCC
VSS
OE#
Mux
Bank A
Bank B
X-Decoder
A21–A0
Status
DQ15–DQ0
Control
Mux
DQ15–DQ0
CE#
WP#/ACC
STATE
CONTROL
&
COMMAND
REGISTER
X-Decoder
A21–A0
DQ0–DQ15
Bank C Address
Bank C
X-Decoder
A21–A0
Bank D Address
Y-gate
RESET#
WE#
DQ15–DQ0
Bank B Address
DQ15–DQ0
RY/BY#
DQ15–DQ0
A21–A0
X-Decoder
Y-gate
Bank A Address
A21–A0
Bank D
Mux
6
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
CONNECTION DIAGRAMS
80-Ball Fine-pitch BGA
Top View, Balls Facing Down
A8
B8
C8
D8
E8
F8
G8
H8
J8
K8
L8
M8
NC
NC
NC
NC
NC
VIO
VSS
NC
NC
NC
NC
NC
A7
B7
C7
D7
E7
F7
G7
H7
J7
K7
L7
M7
NC
NC
A13
A12
A14
A15
A16
NC
DQ15
VSS
NC
NC
C6
D6
E6
F6
G6
H6
J6
K6
A9
A8
A10
A11
DQ7
DQ14
DQ13
DQ6
C5
D5
E5
F5
G5
H5
J5
K5
WE#
RESET#
A21
A19
DQ5
DQ12
VCC
DQ4
C4
D4
RY/BY# WP#/ACC
E4
F4
G4
H4
J4
K4
A18
A20
DQ2
DQ10
DQ11
DQ3
C3
D3
E3
F3
G3
H3
J3
K3
A7
A17
A6
A5
DQ0
DQ8
DQ9
DQ1
A2
B2
C2
D2
E2
F2
G2
H2
J2
K2
L2
M2
NC
NC
A3
A4
A2
A1
A0
CE#
OE#
VSS
NC
NC
A1
B1
C1
D1
E1
F1
G1
H1
J1
K1
L1
M1
NC
NC
NC
NC
NC
NC
NC
VIO
NC
NC
NC
NC
February 26, 2003
Am29PDL640G
7
P R E L I M I N A R Y
CONNECTION DIAGRAMS
63-Ball Fine-pitch BGA
Top View, Balls Facing Down
A8
B8
L8
M8
NC
NC
NC*
NC*
A7
B7
C7
D7
E7
F7
G7
H7
J7
K7
L7
M7
NC
NC
A13
A12
A14
A15
A16
NC
DQ15
VSS
NC*
NC*
C6
D6
E6
F6
G6
H6
J6
K6
A9
A8
A10
A11
DQ7
DQ14
DQ13
DQ6
C5
D5
E5
F5
G5
H5
J5
K5
DQ4
WE#
RESET#
A21
A19
DQ5
DQ12
VCC
C4
D4
E4
F4
G4
H4
J4
K4
A18
A20
DQ2
DQ10
DQ11
DQ3
RY/BY# WP#/ACC
A2
D3
E3
F3
G3
H3
J3
K3
A7
A17
A6
A5
DQ0
DQ8
DQ9
DQ1
C2
D2
E2
F2
G2
H2
J2
K2
L2
M2
OE#
VSS
NC*
NC*
L1
M1
NC*
NC*
A3
NC*
A1
C3
A4
A2
A1
A0
CE#
B1
* Balls are shorted together via the substrate but not connected to the die.
NC*
NC*
Notes:VIO = VCC for 63-Ball Fine-pitch BGA package.
8
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
PIN DESCRIPTION
A21–A0
=
LOGIC SYMBOL
22 Addresses
22
DQ15–DQ0 =
16 Data Inputs/Outputs
CE#
=
Chip Enable
OE#
=
Output Enable
WE#
=
Write Enable
CE#
WP#/ACC
=
Hardware Write Protect/Program
Acceleration Input
OE#
A21–A0
16
DQ15–DQ0
WE#
RESET#
=
Hardware Reset Pin, Active Low
WP#/ACC
RY/BY#
=
Ready/Busy Output
RESET#
VCC
=
3.0 Volt-only Single Power Supply
(see Product Selector Guide for
speed options and voltage supply
tolerances)
VIO (N/A 63-ball FBGA)
VIO
=
Output Buffer Power Supply (not
available in 63-ball FBGA package)
VSS
=
Device Ground
NC
=
Pin Not Connected Internally
February 26, 2003
Am29PDL640G
RY/BY#
9
P R E L I M I N A R Y
ORDERING INFORMATION
Standard Products
AMD standard products are available in several packages and operating ranges. The order number (Valid Combination) is
formed by a combination of the following:
Am29PDL640G
63
WS
I
OPTIONAL PROCESSING
Blank = Standard Processing
N
= 16-byte ESN devices
(Contact an AMD representative for more information)
TEMPERATURE RANGE
I
= Industrial (–40°C to +85°C)
PACKAGE TYPE
WH = 63-ball Fine-pitch Ball Grid Array
0.8 mm pitch, 12 x 11 mm package (FBE063)
WS
= 80-Ball Fine-pitch Ball Grid Array
0.8 mm pitch, 12 x 11 mm package (FBE080)
SPEED OPTION
See Product Selector Guide and Valid Combinations
DEVICE NUMBER/DESCRIPTION
Am29PDL640G
64 Megabit (4 M x 16-Bit) CMOS Flash Memory
3.0 Volt-only Read, Program, and Erase
Valid Combinations
Valid Combinations for BGA Packages
Order Number
Package Marking
Am29PDL640G63
WHI
PD640G63V
Am29PDL640G63
WSI
PD640G63U
Am29PDL640G73
WHI
PD640G73V
Am29PDL640G73
WSI
PD640G73U
Am29PDL640G83
WHI
PD640G83V
Am29PDL640G83
WSI
PD640G83U
Am29PDL640G98
WSI
PD640G98U
10
Speed
(ns)
VIO
Range
65
70
2.7–
3.1 V
I
85
90
Valid Combinations list configurations planned to be supported in
volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on
newly released combinations.
Note: For the Am29PDL640G, the last digit of the speed indicator
specifies VIO range. Speed grades ending in 3 (such as 73,83) indicate
a 3 Volt VIO range; speed grades ending in 8 (such as 98) indicate a
1.8V VIO range.
1.65–
1.95 V
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
DEVICE BUS OPERATIONS
This section describes the requirements and use of
the device bus operations, which are initiated through
the internal command register. The command register
itself does not occupy any addressable memory location. The register is a latch used to store the commands, along with the address and data information
needed to execute the command. The contents of the
register serve as inputs to the internal state machine.
The state machine outputs dictate the function of the
device. Table 1 lists the device bus operations, the inputs and control levels they require, and the resulting
output. The following subsections describe each of
these operations in further detail.
Table 1. Am29PDL640G Device Bus Operations
CE#
OE#
WE#
RESET#
WP#/ACC
Addresses
(Note 1)
DQ15–
DQ0
Read
L
L
H
H
X
AIN
DOUT
Write
L
H
L
H
X
AIN
DIN
VIO±
0.3 V
X
X
VIO ±
0.3 V
X
X
High-Z
Output Disable
L
H
H
H
X
X
High-Z
Reset
X
X
X
L
X
X
High-Z
Temporary Sector Unprotect (High
Voltage)
X
X
X
VID
X
AIN
DIN
Operation
Standby
Legend: L = Logic Low = VIL, H = Logic High = VIH, VID = 11.5–12.5 V, VHH = 8.5–9.5 V, X = Don’t Care, SA = Sector Address,
AIN = Address In, DIN = Data In, DOUT = Data Out
Notes:
1. Addresses are A21–A0.
2. The sector protect and sector unprotect functions may also be implemented via programming equipment. See the High Voltage
Sector Protection section.
Requirements for Reading Array Data
Random Read (Non-Page Read)
To read array data from the outputs, the system must
drive the CE# and OE# pins to VIL. CE# is the power
control and selects the device. OE# is the output control and gates array data to the output pins. WE#
should remain at VIH.
Address access time (tACC) is equal to the delay from
stable addresses to valid output data. The chip enable
access time (t CE ) is the delay from the stable addresses and stable CE# to valid data at the output inputs. The output enable access time is the delay from
the falling edge of the OE# to valid data at the output
inputs (assuming the addresses have been stable for
at least tACC–tOE time).
The internal state machine is set for reading array data
upon device power-up, or after a hardware reset. This
ensures that no spurious alteration of the memory
content occurs during the power transition. No command is necessary in this mode to obtain array data.
Standard microprocessor read cycles that assert valid
addresses on the device address inputs produce valid
data on the device data outputs. Each bank remains
enabled for read access until the command register
contents are altered.
Refer to the AC Read-Only Operations table for timing
specifications and to Figure 12 for the timing diagram.
ICC1 in the DC Characteristics table represents the active current specification for reading array data.
February 26, 2003
Page Mode Read
The device is capable of fast page mode read and is
compatible with the page mode Mask ROM read operation. This mode provides faster read access speed
for random locations within a page. The page size of
the device is 8 words, with the appropriate page being
selected by the higher address bits A21–A3 and the
LSB bits A2–A0 determining the specific word within
that page. This is an asynchronous operation with the
microprocessor supplying the specific word location.
The random or initial page access is equal to tACC or
tCE and subsequent page read accesses (as long as
the locations specified by the microprocessor falls
within that page) is equivalent to tPACC. When CE# is
Am29PDL640G
11
P R E L I M I N A R Y
deasserted and reasserted for a subsequent access,
the access time is tACC or tCE. Here again, CE# selects
the device and OE# is the output control and should
be used to gate data to the output inputs if the device
is selected. Fast page mode accesses are obtained by
keeping A21–A3 constant and changing A2 to A0 to
select the specific word within that page.
Table 2.
Page Select
Word
A2
A1
A0
Word 0
0
0
0
Word 1
0
0
1
Word 2
0
1
0
Word 3
0
1
1
Word 4
1
0
0
Word 5
1
0
1
Word 6
1
1
0
Word 7
1
1
1
Simultaneous Operation
The device is capable of reading data from one bank
of memory while a program or erase operation is in
progress in another bank of memory (simultaneous
operation), in addition to the conventional features
(read, program, erase-suspend read, and erase-suspend program). The bank selected can be selected by
bank addresses (A21–A19) with zero latency.
The simultaneous operation can execute multi-function mode in the same bank.
Table 3. Bank Select
Bank
A21–A19
Bank A
000
Bank B
001, 010, 011
Bank C
100, 101, 110
Bank D
111
An erase operation can erase one sector, multiple sectors, or the entire device. Table 4 indicates the address
space that each sector occupies. A “bank address” is
the address bits required to uniquely select a bank.
Similarly, a “sector address” refers to the address bits
required to uniquely select a sector. The “Command
Definitions” section has details on erasing a sector or
the entire chip, or suspending/resuming the erase operation.
ICC2 in the DC Characteristics table represents the active current specification for the write mode. The AC
Characteristics section contains timing specification
tables and timing diagrams for write operations.
Accelerated Program Operation
The device offers accelerated program operations
through the ACC function. This function is primarily intended to allow faster manufacturing throughput at the
factory.
If the system asserts VHH on this pin, the device automatically enters the aforementioned Unlock Bypass
mode, temporarily unprotects any protected sectors,
and uses the higher voltage on the pin to reduce the
time required for program operations. The system
would use a two-cycle program command sequence
as required by the Unlock Bypass mode. Removing
VHH from the WP#/ACC pin returns the device to normal operation. Note that VHH must not be asserted on
WP#/ACC for operations other than accelerated programming, or device damage may result. In addition,
the WP#/ACC pin should be raised to VCC when not in
use. That is, the WP#/ACC pin should not be left floating or unconnected; inconsistent behavior of the device may result.
Autoselect Functions
Writing Commands/Command Sequences
To write a command or command sequence (which includes programming data to the device and erasing
sectors of memory), the system must drive WE# and
CE# to VIL, and OE# to VIH.
The device features an Unlock Bypass mode to facilitate faster programming. Once a bank enters the Unlock Bypass mode, only two write cycles are required
12
to program a word, instead of four. The “Word Program Command Sequence” section has details on
programming data to the device using both standard
and Unlock Bypass command sequences.
If the system writes the autoselect command sequence, the device enters the autoselect mode. The
system can then read autoselect codes from the internal register (which is separate from the memory array)
on DQ15–DQ0. Standard read cycle timings apply in
this mode. Refer to the Autoselect Mode and Autoselect Command Sequence sections for more information.
Standby Mode
When the system is not reading or writing to the device, it can place the device in the standby mode. In
this mode, current consumption is greatly reduced,
and the outputs are placed in the high impedance
state, independent of the OE# input.
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
The device enters the CMOS standby mode when the
CE# and RESET# pins are both held at VIO ± 0.3 V.
(Note that this is a more restricted voltage range than
VIH.) If CE# and RESET# are held at VIH, but not within
VIO ± 0.3 V, the device will be in the standby mode, but
the standby current will be greater. The device requires standard access time (t CE ) for read access
when the device is in either of these standby modes,
before it is ready to read data.
If the device is deselected during erasure or programming, the device draws active current until the
operation is completed.
I CC3 in the DC Characteristics table represents the
CMOS standby current specification.
system can thus monitor RY/BY# to determine
whether the reset operation is complete. If RESET# is
asserted when a program or erase operation is not executing (RY/BY# pin is “1”), the reset operation is completed within a time of tREADY (not during Embedded
Algorithms). The system can read data tRH after the
RESET# pin returns to VIH.
Refer to the AC Characteristics tables for RESET# parameters and to Figure 14 for the timing diagram.
Output Disable Mode
When the OE# input is at VIH, output from the device is
disabled. The output pins (except for RY/BY#) are
placed in the high impedance state.
Table 4. Am29PDL640G Sector Architecture
The automatic sleep mode minimizes Flash device energy consumption. The device automatically enables
this mode when addresses remain stable for tACC +
30 ns. The automatic sleep mode is independent of
the CE#, WE#, and OE# control signals. Standard address access timings provide new data when addresses are changed. While in sleep mode, output
data is latched and always available to the system.
Note that during automatic sleep mode, OE# must be
at VIH before the device reduces current to the stated
sleep mode specification. ICC5 in the DC Characteristics table represents the automatic sleep mode current
specification.
RESET#: Hardware Reset Pin
Bank
Bank A
Automatic Sleep Mode
The RESET# pin provides a hardware method of resetting the device to reading array data. When the RESET# pin is driven low for at least a period of tRP, the
device immediately terminates any operation in
progress, tristates all output pins, and ignores all
read/write commands for the duration of the RESET#
pulse. The device also resets the internal state machine to reading array data. The operation that was interrupted should be reinitiated once the device is
ready to accept another command sequence, to ensure data integrity.
Sector
Sector
Address
A21–A12
Sector
Size
(Kwords)
Address Range
SA0
0000000000
4
00000h–00FFFh
SA1
0000000001
4
01000h–01FFFh
SA2
0000000010
4
02000h–02FFFh
SA3
0000000011
4
03000h–03FFFh
SA4
0000000100
4
04000h–04FFFh
SA5
0000000101
4
05000h–05FFFh
SA6
0000000110
4
06000h–06FFFh
SA7
0000000111
4
07000h–07FFFh
SA8
0000001xxx
32
08000h–0FFFFh
SA9
0000010xxx
32
10000h–17FFFh
SA10
0000011xxx
32
18000h–1FFFFh
SA11
0000100xxx
32
20000h–27FFFh
SA12
0000101xxx
32
28000h–2FFFFh
SA13
0000110xxx
32
30000h–37FFFh
SA14
0000111xxx
32
38000h–3FFFFh
SA15
0001000xxx
32
40000h–47FFFh
SA16
0001001xxx
32
48000h–4FFFFh
SA17
0001010xxx
32
50000h–57FFFh
SA18
0001011xxx
32
58000h–5FFFFh
SA19
0001100xxx
32
60000h–67FFFh
SA20
0001101xxx
32
68000h–6FFFFh
SA21
0001101xxx
32
70000h–77FFFh
SA22
0001111xxx
32
78000h–7FFFFh
Current is reduced for the duration of the RESET#
pulse. When RESET# is held at VSS±0.3 V, the device
draws CMOS standby current (ICC4). If RESET# is held
at VIL but not within VSS±0.3 V, the standby current will
be greater.
The RESET# pin may be tied to the system reset circuitry. A system reset would thus also reset the Flash
memory, enabling the system to read the boot-up firmware from the Flash memory.
If RESET# is asserted during a program or erase operation, the RY/BY# pin remains a “0” (busy) until the
internal reset operation is complete, which requires a
time of t READY (during Embedded Algorithms). The
February 26, 2003
Am29PDL640G
13
P R E L I M I N A R Y
Table 4.
14
Sector
Sector
Address
A21–A12
Sector
Size
(Kwords)
Address Range
Table 4. Am29PDL640G Sector Architecture
Bank
Sector
Sector
Address
A21–A12
Sector
Size
(Kwords)
Address Range
SA23
0010000xxx
32
80000h–87FFFh
SA71
1000000xxx
32
200000h–207FFFh
SA24
0010001xxx
32
88000h–8FFFFh
SA72
1000001xxx
32
208000h–20FFFFh
SA25
0010010xxx
32
90000h–97FFFh
SA73
1000010xxx
32
210000h–217FFFh
SA26
0010011xxx
32
98000h–9FFFFh
SA74
1000011xxx
32
218000h–21FFFFh
SA27
0010100xxx
32
A0000h–A7FFFh
SA75
1000100xxx
32
220000h–227FFFh
SA28
0010101xxx
32
A8000h–AFFFFh
SA76
1000101xxx
32
228000h–22FFFFh
SA29
0010110xxx
32
B0000h–B7FFFh
SA77
1000110xxx
32
230000h–237FFFh
SA30
0010111xxx
32
B8000h–BFFFFh
SA78
1000111xxx
32
238000h–23FFFFh
SA31
0011000xxx
32
C0000h–C7FFFh
SA79
1001000xxx
32
240000h–247FFFh
SA32
0011001xxx
32
C8000h–CFFFFh
SA80
1001001xxx
32
248000h–24FFFFh
SA33
0011010xxx
32
D0000h–D7FFFh
SA81
1001010xxx
32
250000h–257FFFh
SA34
0011011xxx
32
D8000h–DFFFFh
SA82
1001011xxx
32
258000h–25FFFFh
SA35
0011000xxx
32
E0000h–E7FFFh
SA83
1001100xxx
32
260000h–267FFFh
SA36
0011101xxx
32
E8000h–EFFFFh
SA84
1001101xxx
32
268000h–26FFFFh
SA37
0011110xxx
32
F0000h–F7FFFh
SA85
1001110xxx
32
270000h–277FFFh
SA38
0011111xxx
32
F8000h–FFFFFh
SA86
1001111xxx
32
278000h–27FFFFh
SA39
0100000xxx
32
F9000h–107FFFh
SA87
1010000xxx
32
280000h–28FFFFh
SA40
0100001xxx
32
108000h–10FFFFh
SA88
1010001xxx
32
288000h–28FFFFh
SA41
0100010xxx
32
110000h–117FFFh
SA89
1010010xxx
32
290000h–297FFFh
SA42
0101011xxx
32
118000h–11FFFFh
SA90
1010011xxx
32
298000h–29FFFFh
SA43
0100100xxx
32
120000h–127FFFh
SA91
1010100xxx
32
2A0000h–2A7FFFh
SA44
0100101xxx
32
128000h–12FFFFh
SA92
1010101xxx
32
2A8000h–2AFFFFh
SA45
0100110xxx
32
130000h–137FFFh
SA93
1010110xxx
32
2B0000h–2B7FFFh
SA46
0100111xxx
32
138000h–13FFFFh
SA94
1010111xxx
32
2B8000h–2BFFFFh
SA47
0101000xxx
32
140000h–147FFFh
SA95
1011000xxx
32
2C0000h–2C7FFFh
SA48
0101001xxx
32
148000h–14FFFFh
SA96
1011001xxx
32
2C8000h–2CFFFFh
SA49
0101010xxx
32
150000h–157FFFh
SA97
1011010xxx
32
2D0000h–2D7FFFh
SA50
0101011xxx
32
158000h–15FFFFh
SA98
1011011xxx
32
2D8000h–2DFFFFh
SA51
0101100xxx
32
160000h–167FFFh
SA99
1011100xxx
32
2E0000h–2E7FFFh
SA52
0101101xxx
32
168000h–16FFFFh
SA100
1011101xxx
32
2E8000h–2EFFFFh
SA53
0101110xxx
32
170000h–177FFFh
SA101
1011110xxx
32
2F0000h–2FFFFFh
SA54
0101111xxx
32
178000h–17FFFFh
SA102
1011111xxx
32
2F8000h–2FFFFFh
SA55
0110000xxx
32
180000h–187FFFh
SA103
1100000xxx
32
300000h–307FFFh
SA56
0110001xxx
32
188000h–18FFFFh
SA104
1100001xxx
32
308000h–30FFFFh
SA57
0110010xxx
32
190000h–197FFFh
SA105
1100010xxx
32
310000h–317FFFh
SA58
0110011xxx
32
198000h–19FFFFh
SA106
1100011xxx
32
318000h–31FFFFh
SA59
0100100xxx
32
1A0000h–1A7FFFh
SA107
1100100xxx
32
320000h–327FFFh
SA60
0110101xxx
32
1A8000h–1AFFFFh
SA108
1100101xxx
32
328000h–32FFFFh
SA61
0110110xxx
32
1B0000h–1B7FFFh
SA109
1100110xxx
32
330000h–337FFFh
SA62
0110111xxx
32
1B8000h–1BFFFFh
SA110
1100111xxx
32
338000h–33FFFFh
SA63
0111000xxx
32
1C0000h–1C7FFFh
SA111
1101000xxx
32
340000h–347FFFh
SA64
0111001xxx
32
1C8000h–1CFFFFh
SA112
1101001xxx
32
348000h–34FFFFh
SA65
0111010xxx
32
1D0000h–1D7FFFh
SA113
1101010xxx
32
350000h–357FFFh
SA66
0111011xxx
32
1D8000h–1DFFFFh
SA114
1101011xxx
32
358000h–35FFFFh
Bank C
Bank B
Bank
Am29PDL640G Sector Architecture
SA67
0111100xxx
32
1E0000h–1E7FFFh
SA115
1101100xxx
32
360000h–367FFFh
SA68
0111101xxx
32
1E8000h–1EFFFFh
SA116
1101101xxx
32
368000h–36FFFFh
SA69
0111110xxx
32
1F0000h–1F7FFFh
SA117
1101110xxx
32
370000h–377FFFh
SA70
0111111xxx
32
1F8000h–1FFFFFh
SA118
1101111xxx
32
378000h–37FFFFh
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
Table 4.
Bank D
Bank
Am29PDL640G Sector Architecture
Sector
Address
A21–A12
Sector
Sector
Size
(Kwords)
Address Range
SA119
1110000xxx
32
380000h–387FFFh
SA120
1110001xxx
32
388000h–38FFFFh
SA121
1110010xxx
32
390000h–397FFFh
SA122
1110011xxx
32
398000h–39FFFFh
SA123
1110100xxx
32
3A0000h–3A7FFFh
SA124
1110101xxx
32
3A8000h–3AFFFFh
SA125
1110110xxx
32
3B0000h–3B7FFFh
SA126
1110111xxx
32
3B8000h–3BFFFFh
SA127
1111000xxx
32
3C0000h–3C7FFFh
SA128
1111001xxx
32
3C8000h–3CFFFFh
SA129
1111010xxx
32
3D0000h–3D7FFFh
SA130
1111011xxx
32
3D8000h–3DFFFFh
SA131
1111100xxx
32
3E0000h–3E7FFFh
SA132
1111101xxx
32
3E8000h–3EFFFFh
SA133
1111110xxx
32
3F0000h–3F7FFFh
SA134
1111111000
4
3F8000h–3F8FFFh
SA135
1111111001
4
3F9000h–3F9FFFh
SA136
1111111010
4
3FA000h–3FAFFFh
SA137
1111111011
4
3FB000h–3FBFFFh
SA138
1111111100
4
3FC000h–3FCFFFh
SA139
1111111101
4
3FD000h–3FDFFFh
SA140
1111111110
4
3FE000h–3FEFFFh
SA141
1111111111
4
3FF000h–3FFFFFh
Table 5. Bank Address
Bank
A
B
C
D
Table 6.
A21–A19
000
001, 010, 011
100, 101, 110
111
The autoselect mode provides manufacturer and device identification, and sector protection verification,
through identifier codes output on DQ7–DQ0. This
mode is primarily intended for programming equipment to automatically match a device to be programmed with its corresponding programming
algorithm. However, the autoselect codes can also be
accessed in-system through the command register.
When using programming equipment, the autoselect
mode requires VID on address pin A9. Address pins
must be as shown in Table 7. In addition, when verifying sector protection, the sector address must appear
on the appropriate highest order address bits (see
Table 4). Table 7 shows the remaining address bits
that are don’t care. When all necessary bits have been
set as required, the programming equipment may then
read the corresponding identifier code on DQ7–DQ0.
However, the autoselect codes can also be accessed
in-system through the command register, for instances
when the device is erased or programmed in a system
without access to high voltage on the A9 pin. The
command sequence is illustrated in Table 14. Note
that if a Bank Address (BA) on address bits A21, A20,
and A19 is asserted during the third write cycle of the
autoselect command, the host system can read autoselect data that bank and then immediately read
array data from the other bank, without exiting the autoselect mode.
To access the autoselect codes in-system, the host
system can issue the autoselect command via the
command register, as shown in Table 14. This method
does not require V ID . Refer to the Autoselect Command Sequence section for more information.
SecSiTM Sector Addresses
Device
Sector Size
Address Range
Am29PDL640G
128 words
00000h–0007Fh
February 26, 2003
Autoselect Mode
Am29PDL640G
15
P R E L I M I N A R Y
Table 7. Autoselect Codes (High Voltage Method)
Description
Device ID
Manufacturer ID:
AMD
CE#
OE#
WE#
A21
to
A12
L
L
H
X
A10
A9
A8
A7
X
VID
X
X
A6
A5
to
A4
A3
A2
A1
A0
DQ15
to DQ0
L
X
L
L
L
L
0001h
L
L
L
H
227Eh
H
H
H
L
2215h
H
H
H
H
2201h
H
L
H
L
0001h (protected),
0000h (unprotected)
H
0080h
(factory locked),
0000h (not factory
locked)
Read
Cycle 1
Read
Cycle 2
L
L
H
X
X
VID
X
L
L
L
Read
Cycle 3
Sector Protection
Verification
SecSi Indicator Bit
(DQ7)
L
L
L
L
H
H
SA
X
X
VID
X
VID
X
X
L
L
X
L
H
X
L
L
H
Legend: L = Logic Low = VIL, H = Logic High = VIH, BA = Bank Address, SA = Sector Address, X = Don’t care.
Note: The autoselect codes may also be accessed in-system via command sequences.
Table 8. Am29PDL640G Boot Sector/Sector Block
Addresses for Protection/Unprotection
16
Sector
A21–A12
Sector/
Sector Block Size
01111XXXXX
128 (4x32) Kwords
A21–A12
Sector/
Sector Block Size
SA67–SA70
Sector
SA71–SA74
10000XXXXX
128 (4x32) Kwords
SA0
0000000000
4 Kwords
SA75–SA78
10001XXXXX
128 (4x32) Kwords
SA1
0000000001
4 Kwords
SA79–SA82
10010XXXXX
128 (4x32) Kwords
SA2
0000000010
4 Kwords
SA83–SA86
10011XXXXX
128 (4x32) Kwords
SA3
0000000011
4 Kwords
SA87–SA90
10100XXXXX
128 (4x32) Kwords
SA4
0000000100
4 Kwords
SA91–SA94
10101XXXXX
128 (4x32) Kwords
SA5
0000000101
4 Kwords
SA95–SA98
10110XXXXX
128 (4x32) Kwords
SA6
0000000110
4 Kwords
SA99–SA102
10111XXXXX
128 (4x32) Kwords
SA7
0000000111
4 Kwords
SA103–SA106
11000XXXXX
128 (4x32) Kwords
SA107–SA110
11001XXXXX
128 (4x32) Kwords
SA8–SA10
0000001XXX,
0000010XXX,
0000011XXX
96 (3x32) Kwords
SA111–SA114
11010XXXXX
128 (4x32) Kwords
SA11–SA14
00001XXXXX
128 (4x32) Kwords
SA15–SA18
00010XXXXX
128 (4x32) Kwords
SA19–SA22
00011XXXXX
128 (4x32) Kwords
SA23–SA26
00100XXXXX
128 (4x32) Kwords
SA27-SA30
00101XXXXX
128 (4x32) Kwords
SA31-SA34
00110XXXXX
128 (4x32) Kwords
SA115–SA118
11011XXXXX
128 (4x32) Kwords
SA119–SA122
11100XXXXX
128 (4x32) Kwords
SA123–SA126
11101XXXXX
128 (4x32) Kwords
SA127–SA130
11110XXXXX
128 (4x32) Kwords
SA131–SA133
1111100XXX,
1111101XXX,
1111110XXX
96 (3x32) Kwords
SA35-SA38
00111XXXXX
128 (4x32) Kwords
SA134
1111111000
4 Kwords
SA39-SA42
01000XXXXX
128 (4x32) Kwords
SA135
1111111001
4 Kwords
SA43-SA46
01001XXXXX
128 (4x32) Kwords
SA136
1111111010
4 Kwords
SA47-SA50
01010XXXXX
128 (4x32) Kwords
SA137
1111111011
4 Kwords
SA51-SA54
01011XXXXX
128 (4x32) Kwords
SA138
1111111100
4 Kwords
SA55–SA58
01100XXXXX
128 (4x32) Kwords
SA139
1111111101
4 Kwords
SA59–SA62
01101XXXXX
128 (4x32) Kwords
SA140
1111111101
4 Kwords
SA63–SA66
01110XXXXX
128 (4x32) Kwords
SA141
1111111111
4 Kwords
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
SECTOR PROTECTION
The Am29PDL640G features several levels of sector
protection, which can disable both the program and
erase operations in certain sectors or sector groups:
■ Persistently Locked—The sector is protected and
cannot be changed.
Persistent Sector Protection
■ Dynamically Locked—The sector is protected and
can be changed by a simple command.
A command sector protection method that replaces
the old 12 V controlled protection method.
■ Unlocked—The sector is unprotected and can be
changed by a simple command.
Password Sector Protection
To achieve these states, three types of “bits” are used:
A highly sophisticated protection method that requires
a password before changes to certain sectors or sector groups are permitted
Persistent Protection Bit (PPB)
WP# Hardware Protection
A write protect pin that can prevent program or erase
operations in sectors 0, 1, 140, and 141.
All parts default to operate in the Persistent Sector
Protection mode. The customer must then choose if
the Persistent or Password Protection method is most
desirable. There are two one-time programmable
non-volatile bits that define which sector protection
method will be used. If the Persistent Sector Protection method is desired, programming the Persistent
Sector Protection Mode Locking Bit permanently
sets the device to the Persistent Sector Protection
mode. If the Password Sector Protection method is
desired, programming the Password Mode Locking
Bit permanently sets the device to the Password Sector Protection mode. It is not possible to switch between the two protection modes once a locking bit has
been set. One of the two modes must be selected
when the device is first programmed. This prevents
a program or virus from later setting the Password
Mode Locking Bit, which would cause an unexpected
shift from the default Persistent Sector Protection
Mode into the Password Protection Mode.
A single Persistent (non-volatile) Protection Bit is assigned to a maximum four sectors (see the sector address tables for specific sector protection groupings).
All 4 Kword boot-block sectors have individual sector
Persistent Protection Bits (PPBs) for greater flexibility.
Each PPB is individually modifiable through the PPB
Write Command.
The device erases all PPBs in parallel. If any PPB requires erasure, the device must be instructed to preprogram all of the sector PPBs prior to PPB erasure.
Otherwise, a previously erased sector PPBs can potentially be over-erased. The flash device does not
have a built-in means of preventing sector PPBs
over-erasure.
Persistent Protection Bit Lock (PPB Lock)
The Persistent Protection Bit Lock (PPB Lock) is a global volatile bit. When set to “1”, the PPBs cannot be
changed. When cleared (“0”), the PPBs are changeable. There is only one PPB Lock bit per device. The
PPB Lock is cleared after power-up or hardware reset.
There is no command sequence to unlock the PPB
Lock.
Dynamic Protection Bit (DYB)
The WP# Hardware Protection feature is always available, independent of the software managed protection
method chosen.
A volatile protection bit is assigned for each sector.
After power-up or hardware reset, the contents of all
DYBs is “0”. Each DYB is individually modifiable
through the DYB Write Command.
The device is shipped with all sectors unprotected.
AMD offers the option of programming and protecting
sectors at the factory prior to shipping the device
through AMD’s ExpressFlash™ Service. Contact an
AMD representative for details.
When the parts are first shipped, the PPBs are
cleared, the DYBs are cleared, and PPB Lock is defaulted to power up in the cleared state – meaning the
PPBs are changeable.
It is possible to determine whether a sector is protected or unprotected. See Autoselect Mode for details.
Persistent Sector Protection
The Persistent Sector Protection method replaces the
12 V controlled protection method in previous AMD
flash devices. This new method provides three different sector protection states:
February 26, 2003
When the device is first powered on the DYBs power
up cleared (sectors not protected). The Protection
State for each sector is determined by the logical OR
of the PPB and the DYB related to that sector. For the
sectors that have the PPBs cleared, the DYBs control
whether or not the sector is protected or unprotected.
By issuing the DYB Write command sequences, the
DYBs will be set or cleared, thus placing each sector
in the protected or unprotected state. These are the
so-called Dynamic Locked or Unlocked states. They
are called dynamic states because it is very easy to
Am29PDL640G
17
P R E L I M I N A R Y
switch back and forth between the protected and unprotected conditions. This allows software to easily
protect sectors against inadvertent changes yet does
not prevent the easy removal of protection when
changes are needed. The DYBs maybe set or cleared
as often as needed.
The PPBs allow for a more static, and difficult to
change, level of protection. The PPBs retain their state
across power cycles because they are non-volatile. Individual PPBs are set with a command but must all be
cleared as a group through a complex sequence of
program and erasing commands. The PPBs are also
limited to 100 erase cycles.
The PPB Lock bit adds an additional level of protection. Once all PPBs are programmed to the desired
settings, the PPB Lock may be set to “1”. Setting the
PPB Lock disables all program and erase commands
to the non-volatile PPBs. In effect, the PPB Lock Bit
locks the PPBs into their current state. The only way to
clear the PPB Lock is to go through a power cycle.
System boot code can determine if any changes to the
PPB are needed; for example, to allow new system
code to be downloaded. If no changes are needed
then the boot code can set the PPB Lock to disable
any further changes to the PPBs during system operation.
The WP#/ACC write protect pin adds a final level of
hardware protection to sectors 0, 1, 140, and 141.
When this pin is low it is not possible to change the
contents of these sectors. These sectors generally
hold system boot code. The WP#/ACC pin can prevent any changes to the boot code that could override
the choices made while setting up sector protection
during system initialization.
It is possible to have sectors that have been persistently locked, and sectors that are left in the dynamic
state. The sectors in the dynamic state are all unprotected. If there is a need to protect some of them, a
simple DYB Write command sequence is all that is
necessary. The DYB write command for the dynamic
sectors switch the DYBs to signify protected and unprotected, respectively. If there is a need to change
the status of the persistently locked sectors, a few
more steps are required. First, the PPB Lock bit must
be disabled by either putting the device through a
power-cycle, or hardware reset. The PPBs can then
be changed to reflect the desired settings. Setting the
PPB lock bit once again will lock the PPBs, and the
device operates normally again.
The best protection is achieved by executing the PPB
lock bit set command early in the boot code, and protect the boot code by holding WP#/ACC = VIL.
18
Table 9. Sector Protection Schemes
DYB
PPB
PPB
Lock
0
0
0
Unprotected—PPB and DYB are
changeable
0
0
1
Unprotected—PPB not
changeable, DYB is changeable
0
1
0
1
0
0
1
1
0
0
1
1
1
0
1
1
1
1
Sector State
Protected—PPB and DYB are
changeable
Protected—PPB not
changeable, DYB is changeable
Table 9 contains all possible combinations of the DYB,
PPB, and PPB lock relating to the status of the sector.
In summary, if the PPB is set, and the PPB lock is set,
the sector is protected and the protection can not be
removed until the next power cycle clears the PPB
lock. If the PPB is cleared, the sector can be dynamically locked or unlocked. The DYB then controls
whether or not the sector is protected or unprotected.
If the user attempts to program or erase a protected
sector, the device ignores the command and returns to
read mode. A program command to a protected sector
enables status polling for approximately 1 µs before
the device returns to read mode without having modified the contents of the protected sector. An erase
command to a protected sector enables status polling
for approximately 50 µs after which the device returns
to read mode without having erased the protected sector.
The programming of the DYB, PPB, and PPB lock for
a given sector can be verified by writing a
DYB/PPB/PPB lock verify command to the device.
Persistent Sector Protection Mode Locking Bit
Like the password mode locking bit, a Persistent Sector Protection mode locking bit exists to guarantee that
the device remain in software sector protection. Once
set, the Persistent Sector Protection locking bit prevents programming of the password protection mode
locking bit. This guarantees that a hacker could not
place the device in password protection mode.
Password Protection Mode
The Password Sector Protection Mode method allows
an even higher level of security than the Persistent
Sector Protection Mode. There are two main differences between the Persistent Sector Protection and
the Password Sector Protection Mode:
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
■ When the device is first powered on, or comes out
of a reset cycle, the PPB Lock bit set to the locked
state, rather than cleared to the unlocked state.
■ The only means to clear the PPB Lock bit is by writing a unique 64-bit Password to the device.
The Password Sector Protection method is otherwise
identical to the Persistent Sector Protection method.
A 64-bit password is the only additional tool utilized in
this method.
The password is stored in a one-time programmable
(OTP) region of the flash memory. Once the Password
Mode Locking Bit is set, the password is permanently
set with no means to read, program, or erase it. The
password is used to clear the PPB Lock bit. The Password Unlock command must be written to the flash,
along with a password. The flash device internally
compares the given password with the pre-programmed password. If they match, the PPB Lock bit is
cleared, and the PPBs can be altered. If they do not
match, the flash device does nothing. There is a
built-in 2 µs delay for each “password check.” This
delay is intended to thwart any efforts to run a program
that tries all possible combinations in order to crack
the password.
Password and Password Mode Locking Bit
In order to select the Password sector protection
scheme, the customer must first program the password. The password may be correlated to the unique
Electronic Serial Number (ESN) of the particular flash
device. Each ESN is different for every flash device;
therefore each password should be different for every
flash device. While programming in the password region, the customer may perform Password Verify operations.
Once the desired password is programmed in, the
customer must then set the Password Mode Locking
Bit. This operation achieves two objectives:
1. Permanently sets the device to operate using the
Password Protection Mode. It is not possible to reverse this function.
2. Disables all further commands to the password region. All program, and read operations are ignored.
Both of these objectives are important, and if not carefully considered, may lead to unrecoverable errors.
The user must be sure that the Password Protection
method is desired when setting the Password Mode
Locking Bit. More importantly, the user must be sure
that the password is correct when the Password Mode
Locking Bit is set. Due to the fact that read operations
are disabled, there is no means to verify what the
password is afterwards. If the password is lost after
setting the Password Mode Locking Bit, there will be
no way to clear the PPB Lock bit.
February 26, 2003
The Password Mode Locking Bit, once set, prevents
reading the 64-bit password on the DQ bus and further
password programming. The Password Mode Locking
Bit is not erasable. Once Password Mode Locking Bit
is programmed, the Persistent Sector Protection Locking Bit is disabled from programming, guaranteeing
that no changes to the protection scheme are allowed.
64-bit Password
The 64-bit Password is located in its own memory
space and is accessible through the use of the Password Program and Verify commands (see “Password
Verify Command”). The password function works in
conjunction with the Password Mode Locking Bit,
which when set, prevents the Password Verify command from reading the contents of the password on
the pins of the device.
Write Protect (WP#)
The Write Protect feature provides a hardware method
of protecting sectors 0, 1, 140, and 141 without using
VID. This function is provided by the WP# pin and overrides the previously discussed High Voltage Sector
Protection method.
If the system asserts VIL on the WP#/ACC pin, the device disables program and erase functions in the two
outermost 4 Kword sectors on both ends of the flash
array independent of whether it was previously protected or unprotected.
If the system asserts VIH on the WP#/ACC pin, the device reverts to whether sectors 0, 1, 140, and 141
were last set to be protected or unprotected. That is,
sector protection or unprotection for these sectors depends on whether they were last protected or unprotected using the method described in High Voltage
Sector Protection.
Note that the WP#/ACC pin must not be left floating or
unconnected; inconsistent behavior of the device may
result.
Persistent Protection Bit Lock
The Persistent Protection Bit (PPB) Lock is a volatile
bit that reflects the state of the Password Mode Locking Bit after power-up reset. If the Password Mode
Lock Bit is also set after a hardware reset (RESET#
asserted) or a power-up reset, the ONLY means for
clearing the PPB Lock Bit in Password Protection
Mode is to issue the Password Unlock command. Successful execution of the Password Unlock command
clears the PPB Lock Bit, allowing for sector PPBs
modifications. Asserting RESET#, taking the device
through a power-on reset, or issuing the PPB Lock Bit
Set command sets the PPB Lock Bit to a “1” when the
Password Mode Lock Bit is not set.
Am29PDL640G
19
P R E L I M I N A R Y
If the Password Mode Locking Bit is not set, including
Persistent Protection Mode, the PPB Lock Bit is
cleared after power-up or hardware reset. The PPB
Lock Bit is set by issuing the PPB Lock Bit Set command. Once set the only means for clearing the PPB
Lock Bit is by issuing a hardware or power-up reset.
The Password Unlock command is ignored in Persistent Protection Mode.
20
High Voltage Sector Protection
Sector protection and unprotection may also be implemented using programming equipment. The procedure requires high voltage (V ID) to be placed on the
RESET# pin. Refer to Figure Note: for details on this
procedure. Note that for sector unprotect, all unprotected sectors must first be protected prior to the first
sector write cycle.
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
START
START
Protect all sectors:
The indicated portion
of the sector protect
algorithm must be
performed for all
unprotected sectors
prior to issuing the
first sector
unprotect address
PLSCNT = 1
RESET# = VID
Wait 4 µs
Temporary Sector
Unprotect Mode
No
PLSCNT = 1
RESET# = VID
Wait 4 µs
First Write
Cycle = 60h?
First Write
Cycle = 60h?
Temporary Sector
Unprotect Mode
Yes
Yes
Set up sector
address
No
All sectors
protected?
Sector Protect:
Write 60h to sector
address with
A6-A0 =
0111010
Yes
Set up first sector
address
Sector Unprotect:
Write 60h to sector
address with
A6-A0 =
1111010
Wait 100 µs
Increment
PLSCNT
No
Verify Sector
Protect: Write 40h
to sector address
with A6-A0 =
0000010
Reset
PLSCNT = 1
Read from
sector address
with A6-A0 =
0000010
Wait 1.2 ms
Verify Sector
Unprotect: Write
40h to sector
address with
A6-A0 =
0000010
Increment
PLSCNT
No
No
PLSCNT
= 25?
Yes
Yes
Remove VID
from RESET#
No
Yes
Protect another
sector?
PLSCNT
= 1000?
No
Write reset
command
Remove VID
from RESET#
Sector Protect
complete
Write reset
command
Device failed
Read from
sector address
with A6-A0 =
0000010
Data = 01h?
Sector Protect
complete
Sector Protect
Algorithm
Yes
Remove VID
from RESET#
Write reset
command
Set up
next sector
address
No
Data = 00h?
Yes
Last sector
verified?
No
Yes
Remove VID
from RESET#
Sector Unprotect
complete
Write reset
command
Device failed
Sector Unprotect
complete
Sector Unprotect
Algorithm
Note:These algorithms are valid only in Persistent Sector Protection Mode. They are not valid in Password Protection Mode.
Figure 1. In-System Sector Protection/
Sector Unprotection Algorithms
February 26, 2003
Am29PDL640G
21
P R E L I M I N A R Y
Temporary Sector Unprotect
This feature allows temporary unprotection of previously protected sectors to change data in-system. The
Sector Unprotect mode is activated by setting the RESET# pin to VID. During this mode, formerly protected
sectors can be programmed or erased by selecting the
sector addresses. Once VID is removed from the RESET# pin, all the previously protected sectors are
protected again. Figure 2 shows the algorithm, and
Figure 22 shows the timing diagrams, for this feature.
AMD offers the device with the SecSi Sector either
factor y lock ed or customer loc kable. The factory-locked version is always protected when shipped
from the factory, and has the SecSi (Secured Silicon)
Sector Indicator Bit permanently set to a “1.” The customer-lockable version is shipped with the SecSi Sector unprotected, allowing customers to utilize the
sector in any manner they choose. The customer-lockable version has the SecSi (Secured Silicon) Sector
Indicator Bit permanently set to a “0.” Thus, the SecSi
Sector Indicator Bit prevents customer-lockable devices from being used to replace devices that are factory locked.
The system accesses the SecSi Sector through a
command sequence (see “Enter SecSi™ Sector/Exit
SecSi Sector Command Sequence”). After the system
has written the Enter SecSi Sector command sequence, it may read the SecSi Sector by using the addresses normally occupied by the boot sectors. This
mode of operation continues until the system issues
the Exit SecSi Sector command sequence, or until
power is removed from the device. On power-up, or
following a hardware reset, the device reverts to sending commands to the normal address space. Note that
the ACC function and unlock bypass modes are not
available when the SecSi Sector is enabled.
START
RESET# = VID
(Note 1)
Perform Erase or
Program Operations
RESET# = VIH
Factory Locked: SecSi Sector Programmed and
Protected At the Factory
Temporary Sector
Unprotect Completed
(Note 2)
Notes:
1. All protected sectors unprotected (If WP#/ACC = VIL,
sectors 0, 1, 140, 141 will remain protected).
2. All previously protected sectors are protected once
again.
In a factory locked device, the SecSi Sector is protected when the device is shipped from the factory.
The SecSi Sector cannot be modified in any way. The
device is preprogrammed with both a random number
and a secure ESN. The SecSi Sector is located at addresses 000000h–00007Fh in Persistent Protection
mode, and at addresses 000005h–00007Fh in Password Protection mode. The device is available preprogrammed with one of the following:
■ A random, secure ESN only
Figure 2. Temporary Sector Unprotect Operation
■ Customer code through the ExpressFlash service
■ Both a random, secure ESN and customer code
through the ExpressFlash service.
SecSi™ (Secured Silicon) Sector
Flash Memory Region
The SecSi (Secured Silicon) Sector feature provides a
Flash memory region that enables permanent part
identification through an Electronic Serial Number
(ESN). The SecSi Sector is up to 128 words in length,
and uses a SecSi Sector Indicator Bit (DQ7) to indicate whether or not the SecSi Sector is locked when
shipped from the factory. This bit is permanently set at
the factory and cannot be changed, which prevents
cloning of a factory locked part. This ensures the security of the ESN once the product is shipped to the field.
22
Customers may opt to have their code programmed by
AMD through the AMD ExpressFlash service. AMD
programs the customer’s code, with or without the random ESN. The devices are then shipped from AMD’s
factory with the SecSi Sector permanently locked.
Contact an AMD representative for details on using
AMD’s ExpressFlash service.
Customer Lockable: SecSi Sector NOT
Programmed or Protected At the Factory
If the security feature is not required, the SecSi Sector
can be treated as an additional Flash memory space.
The SecSi Sector can be read any number of times,
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
but can be programmed and locked only once. Note
that the accelerated programming (ACC) and unlock
bypass functions are not available when programming
the SecSi Sector.
The SecSi Sector area can be protected using one of
the following procedures:
■ Write the three-cycle Enter SecSi Sector Region
command sequence, and then follow the in-system
sector protect algorithm as shown in Figure Note:,
except that RESET# may be at either VIH or VID.
This allows in-system protection of the SecSi Sector
Region without raising any device pin to a high voltage. Note that this method is only applicable to the
SecSi Sector.
■ To verify the protect/unprotect status of the SecSi
Sector, follow the algorithm shown in Figure 3.
Once the SecSi Sector is locked and verified, the system must write the Exit SecSi Sector Region command sequence to return to reading and writing the
remainder of the array.
The SecSi Sector lock must be used with caution
since, once locked, there is no procedure available for
unlocking the SecSi Sector area and none of the bits
in the SecSi Sector memory space can be modified in
any way.
SecSi Sector Protection Bit
The SecSi Sector Protection Bit prevents programming of the SecSi Sector memory area. Once set, the
SecSi Sector memory area contents are non-modifiable.
START
RESET# =
VIH or VID
Wait 1 µs
Write 60h to
any address
Write 40h to SecSi
Sector address
with A6 = 0,
A1 = 1, A0 = 0
Read from SecSi
Sector address
with A6 = 0,
A1 = 1, A0 = 0
If data = 00h,
SecSi Sector is
unprotected.
If data = 01h,
SecSi Sector is
protected.
Remove VIH or VID
from RESET#
Write reset
command
SecSi Sector
Protect Verify
complete
Hardware Data Protection
The command sequence requirement of unlock cycles
for programming or erasing provides data protection
against inadvertent writes. In addition, the following
hardware data protection measures prevent accidental
erasure or programming, which might otherwise be
caused by spurious system level signals during VCC
power-up and power-down transitions, or from system
noise.
Low VCC Write Inhibit
When VCC is less than VLKO, the device does not accept any write cycles. This protects data during VCC
power-up and power-down. The command register
and all internal program/erase circuits are disabled,
and the device resets to the read mode. Subsequent
writes are ignored until VCC is greater than VLKO. The
system must provide the proper signals to the control
pins to prevent unintentional writes when V CC is
greater than VLKO.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE#, CE#
or WE# do not initiate a write cycle.
Logical Inhibit
Write cycles are inhibited by holding any one of OE# =
VIL, CE# = VIH or WE# = VIH. To initiate a write cycle,
CE# and WE# must be a logical zero while OE# is a
logical one.
Power-Up Write Inhibit
If WE# = CE# = VIL and OE# = VIH during power up,
the device does not accept commands on the rising
edge of WE#. The internal state machine is automatically reset to the read mode on power-up.
COMMON FLASH MEMORY INTERFACE
(CFI)
The Common Flash Interface (CFI) specification outlines device and host system software interrogation
handshake, which allows specific vendor-specified
software algorithms to be used for entire families of
devices. Software support can then be device-independent, JEDEC ID-independent, and forward- and
backward-compatible for the specified flash device
families. Flash vendors can standardize their existing
interfaces for long-term compatibility.
This device enters the CFI Query mode when the system writes the CFI Query command, 98h, to address
55h, any time the device is ready to read array data.
The system can read CFI information at the addresses
given in Tables 10–13. To terminate reading CFI data,
the system must write the reset command. The CFI
Query mode is not accessible when the device is exe-
Figure 3. SecSi Sector Protect Verify
February 26, 2003
Am29PDL640G
23
P R E L I M I N A R Y
cuting an Embedded Program or embedded Erase algorithm.
The system can also write the CFI query command
when the device is in the autoselect mode. The device
enters the CFI query mode, and the system can read
CFI data at the addresses given in Tables 10–13. The
system must write the reset command to return the device to reading array data.
24
For further information, please refer to the CFI Specification and CFI Publication 100, available via the
World Wide Web at http://www.amd.com/flash/cfi. Alternatively, contact an AMD representative for copies
of these documents.
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
Table 10. CFI Query Identification String
Addresses
Data
Description
10h
11h
12h
0051h
0052h
0059h
Query Unique ASCII string “QRY”
13h
14h
0002h
0000h
Primary OEM Command Set
15h
16h
0040h
0000h
Address for Primary Extended Table
17h
18h
0000h
0000h
Alternate OEM Command Set (00h = none exists)
19h
1Ah
0000h
0000h
Address for Alternate OEM Extended Table (00h = none exists)
Table 11. System Interface String
Addresses
Data
1Bh
0027h
VCC Min. (write/erase)
D7–D4: volt, D3–D0: 100 millivolt
1Ch
0031h
VCC Max. (write/erase)
D7–D4: volt, D3–D0: 100 millivolt
1Dh
0000h
VPP Min. voltage (00h = no VPP pin present)
1Eh
0000h
VPP Max. voltage (00h = no VPP pin present)
1Fh
0004h
Typical timeout per single byte/word write 2N µs
20h
0000h
Typical timeout for Min. size buffer write 2N µs (00h = not supported)
21h
0009h
Typical timeout per individual block erase 2N ms
22h
0000h
Typical timeout for full chip erase 2N ms (00h = not supported)
23h
0005h
Max. timeout for byte/word write 2N times typical
24h
0000h
Max. timeout for buffer write 2N times typical
25h
0004h
Max. timeout per individual block erase 2N times typical
26h
0000h
Max. timeout for full chip erase 2N times typical (00h = not supported)
February 26, 2003
Description
Am29PDL640G
25
P R E L I M I N A R Y
Table 12.
Addresses
26
Device Geometry Definition
Data
Description
N
27h
0017h
Device Size = 2 byte
28h
29h
0001h
0000h
Flash Device Interface description (refer to CFI publication 100)
2Ah
2Bh
0000h
0000h
Max. number of byte in multi-byte write = 2N
(00h = not supported)
2Ch
0003h
Number of Erase Block Regions within device
2Dh
2Eh
2Fh
30h
0007h
0000h
0020h
0000h
Erase Block Region 1 Information
(refer to the CFI specification or CFI publication 100)
31h
32h
33h
34h
007Dh
0000h
0000h
0001h
Erase Block Region 2 Information
(refer to the CFI specification or CFI publication 100)
35h
36h
37h
38h
0007h
0000h
0020h
0000h
Erase Block Region 3 Information
(refer to the CFI specification or CFI publication 100)
39h
3Ah
3Bh
3Ch
0000h
0000h
0000h
0000h
Erase Block Region 4 Information
(refer to the CFI specification or CFI publication 100)
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
Table 13. Primary Vendor-Specific Extended Query
Addresses
Data
Description
40h
41h
42h
0050h
0052h
0049h
Query-unique ASCII string “PRI”
43h
0031h
Major version number, ASCII (reflects modifications to the silicon)
44h
0033h
Minor version number, ASCII (reflects modifications to the CFI table)
45h
0004h
Address Sensitive Unlock (Bits 1-0)
0 = Required, 1 = Not Required
Silicon Revision Number (Bits 7-2)
46h
0002h
Erase Suspend
0 = Not Supported, 1 = To Read Only, 2 = To Read & Write
47h
0001h
Sector Protect
0 = Not Supported, X = Number of sectors in per group
48h
0001h
Sector Temporary Unprotect
00 = Not Supported, 01 = Supported
49h
0007h
Sector Protect/Unprotect scheme
01 =29F040 mode, 02 = 29F016 mode, 03 = 29F400, 04 = 29LV800 mode
4Ah
0077h
Simultaneous Operation
00 = Not Supported, X = Number of Sectors excluding Bank 1
4Bh
0000h
Burst Mode Type
00 = Not Supported, 01 = Supported
4Ch
0002h
Page Mode Type
00 = Not Supported, 01 = 4 Word Page, 02 = 8 Word Page
4Dh
0085h
4Eh
0095h
4Fh
0001h
50h
0001h
57h
0004h
58h
0017h
59h
0030h
5Ah
0030h
5Bh
0017h
ACC (Acceleration) Supply Minimum
00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV
ACC (Acceleration) Supply Maximum
00h = Not Supported, D7-D4: Volt, D3-D0: 100 mV
Top/Bottom Boot Sector Flag
February 26, 2003
00h = Uniform device, 02h = Bottom Boot Device, 03h = Top Boot Device, 04h = Both
Top and Bottom
Program Suspend
0 = Not supported, 1 = Supported
Bank Organization
00 = Data at 4Ah is zero, X = Number of Banks
Bank 1 Region Information
X = Number of Sectors in Bank 1
Bank 2 Region Information
X = Number of Sectors in Bank 2
Bank 3 Region Information
X = Number of Sectors in Bank 3
Bank 4 Region Information
X = Number of Sectors in Bank 4
Am29PDL640G
27
P R E L I M I N A R Y
COMMAND DEFINITIONS
Writing specific address and data commands or sequences into the command register initiates device operations. Table 14 defines the valid register command
sequences. Writing incorrect address and data values
or writing them in the improper sequence may place
the device in an unknown state. A reset command is
then required to return the device to reading array
data.
All addresses are latched on the falling edge of WE#
or CE#, whichever happens later. All data is latched on
the rising edge of WE# or CE#, whichever happens
first. Refer to the AC Characteristics section for timing
diagrams.
Reading Array Data
The device is automatically set to reading array data
after device power-up. No commands are required to
retrieve data. Each bank is ready to read array data
after completing an Embedded Program or Embedded
Erase algorithm.
After the device accepts an Erase Suspend command,
the corresponding bank enters the erase-suspend-read mode, after which the system can read
data from any non-erase-suspended sector within the
same bank. The system can read array data using the
standard read timing, except that if it reads at an address within erase-suspended sectors, the device outputs status data. After completing a programming
operation in the Erase Suspend mode, the system
may once again read array data with the same exception. See the Erase Suspend/Erase Resume Commands section for more information.
The system must issue the reset command to return a
bank to the read (or erase-suspend-read) mode if DQ5
goes high during an active program or erase operation, or if the bank is in the autoselect mode. See the
next section, Reset Command, for more information.
Note that the ACC function and unlock bypass modes
are not available when the SecSi Sector is enabled.
See also Requirements for Reading Array Data in the
Device Bus Operations section for more information.
The Read-Only Operations table provides the read parameters, and Figure 12 shows the timing diagram.
Reset Command
Writing the reset command resets the banks to the
read or erase-suspend-read mode. Address bits are
don’t cares for this command.
The reset command may be written between the sequence cycles in an erase command sequence before
28
erasing begins. This resets the bank to which the system was writing to the read mode. Once erasure begins, however, the device ignores reset commands
until the operation is complete.
The reset command may be written between the
sequence cycles in a program command sequence
before programming begins. This resets the bank to
which the system was writing to the read mode. If the
program command sequence is written to a bank that
is in the Erase Suspend mode, writing the reset
co mmand re turn s th at ban k to the era se- su spend-read mode. Once programming begins, however, the device ignores reset commands until the
operation is complete.
The reset command may be written between the sequence cycles in an autoselect command sequence.
Once in the autoselect mode, the reset command
must be written to return to the read mode. If a bank
entered the autoselect mode while in the Erase Suspend mode, writing the reset command returns that
bank to the erase-suspend-read mode.
If DQ5 goes high during a program or erase operation,
writing the reset command returns the banks to the
read mode (or erase-suspend-read mode if that bank
was in Erase Suspend).
Autoselect Command Sequence
The autoselect command sequence allows the host
system to access the manufacturer and device codes,
and determine whether or not a sector is protected.
The autoselect command sequence may be written to
an address within a bank that is either in the read or
erase-suspend-read mode. The autoselect command
may not be written while the device is actively programming or erasing in the other bank.
The autoselect command sequence is initiated by first
writing two unlock cycles. This is followed by a third
write cycle that contains the bank address and the autoselect command. The bank then enters the autoselect mode. The system may read any number of
autoselect codes without reinitiating the command sequence.
Table 14 shows the address and data requirements.
To determine sector protection information, the system
must write to the appropriate bank address (BA) and
sector address (SA). Table 4 shows the address range
and bank number associated with each sector.
The system must write the reset command to return to
the read mode (or erase-suspend-read mode if the
bank was previously in Erase Suspend).
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
Enter SecSi™ Sector/Exit SecSi Sector
Command Sequence
The SecSi Sector region provides a secured data area
containing a random, eight word electronic serial number (ESN). The system can access the SecSi Sector
region by issuing the three-cycle Enter SecSi Sector
command sequence. The device continues to access
the SecSi Sector region until the system issues the
four-cycle Exit SecSi Sector command sequence. The
Exit SecSi Sector command sequence returns the device to normal operation. The SecSi Sector is not accessible when the device is executing an Embedded
Program or embedded Erase algorithm. Table 14
shows the address and data requirements for both
command sequences. See also “SecSi™ (Secured Silicon) Sector Flash Memory Region” for further information. Note that the ACC function and unlock bypass
modes are not available when the SecSi Sector is enabled.
Word Program Command Sequence
Programming is a four-bus-cycle operation. The program command sequence is initiated by writing two
unlock write cycles, followed by the program set-up
command. The program address and data are written
next, which in turn initiate the Embedded Program algorithm. The system is not required to provide further
controls or timings. The device automatically provides
internally generated program pulses and verifies the
programmed cell margin. Table 14 shows the address
and data requirements for the program command sequence.
When the Embedded Program algorithm is complete,
that bank then returns to the read mode and addresses are no longer latched. The system can determine the status of the program operation by using
DQ7, DQ6, or RY/BY#. Refer to the Write Operation
Status section for information on these status bits.
Any commands written to the device during the Embedded Program Algorithm are ignored. Note that a
hardware reset immediately terminates the program
operation. The program command sequence should
be reinitiated once that bank has returned to the read
mode, to ensure data integrity. Note that the SecSi
Sector, autoselect, and CFI functions are unavailable
when a program operation is in progress.
Programming is allowed in any sequence and across
sector boundaries. A bit cannot be programmed
February 26, 2003
from “0” back to a “1.” Attempting to do so may
cause that bank to set DQ5 = 1, or cause the DQ7 and
DQ6 status bits to indicate the operation was successful. However, a succeeding read will show that the
data is still “0.” Only erase operations can convert a
“0” to a “1.”
Unlock Bypass Command Sequence
The unlock bypass feature allows the system to program data to a bank faster than using the standard
program command sequence. The unlock bypass
command sequence is initiated by first writing two unlock cycles. This is followed by a third write cycle containing the unlock bypass command, 20h. That bank
then enters the unlock bypass mode. A two-cycle unlock bypass program command sequence is all that is
required to program in this mode. The first cycle in this
sequence contains the unlock bypass program command, A0h; the second cycle contains the program
address and data. Additional data is programmed in
the same manner. This mode dispenses with the initial
two unlock cycles required in the standard program
command sequence, resulting in faster total programming time. Table 14 shows the requirements for the
command sequence.
During the unlock bypass mode, only the Unlock Bypass Program and Unlock Bypass Reset commands
are valid. To exit the unlock bypass mode, the system
must issue the two-cycle unlock bypass reset command sequence. The first cycle must contain the bank
address and the data 90h. The second cycle need
only contain the data 00h. The bank then returns to
the read mode.
The device offers accelerated program operations
through the WP#/ACC pin. When the system asserts
VHH on the WP#/ACC pin, the device automatically enters the Unlock Bypass mode. The system may then
write the two-cycle Unlock Bypass program command
sequence. The device uses the higher voltage on the
WP#/ACC pin to accelerate the operation. Note that
the WP#/ACC pin must not be at VHH any operation
other than accelerated programming, or device damage may result. In addition, the WP#/ACC pin must not
be left floating or unconnected; inconsistent behavior
of the device may result.
Figure 4 illustrates the algorithm for the program operation. Refer to the Erase and Program Operations
table in the AC Characteristics section for parameters,
and Figure 15 for timing diagrams.
Am29PDL640G
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P R E L I M I N A R Y
Any commands written during the chip erase operation
are ignored. However, note that a hardware reset immediately terminates the erase operation. If that occurs, the chip erase command sequence should be
reinitiated once that bank has returned to reading
array data, to ensure data integrity.
START
Figure 5 illustrates the algorithm for the erase operation. Refer to the Erase and Program Operations tables in the AC Characteristics section for parameters,
and Figure 17 section for timing diagrams.
Write Program
Command Sequence
Embedded
Program
algorithm
in progress
Data Poll
from System
Sector Erase Command Sequence
Verify Data?
Sector erase is a six bus cycle operation. The sector
erase command sequence is initiated by writing two
unlock cycles, followed by a set-up command. Two additional unlock cycles are written, and are then followed by the address of the sector to be erased, and
the sector erase command.Table 14 shows the address and data requirements for the sector erase command sequence.
No
Yes
Increment Address
No
The device does not require the system to preprogram
prior to erase. The Embedded Erase algorithm automatically programs and verifies the entire memory for
an all zero data pattern prior to electrical erase. The
system is not required to provide any controls or timings during these operations.
Last Address?
Yes
Programming
Completed
Note: See Table 14 for program command sequence.
Figure 4.
Program Operation
Chip Erase Command Sequence
Chip erase is a six bus cycle operation. The chip erase
command sequence is initiated by writing two unlock
cycles, followed by a set-up command. Two additional
unlock write cycles are then followed by the chip erase
command, which in turn invokes the Embedded Erase
algorithm. The device does not require the system to
preprogram prior to erase. The Embedded Erase algorithm automatically preprograms and verifies the entire
memory for an all zero data pattern prior to electrical
erase. The system is not required to provide any controls or timings during these operations. Table 14
shows the address and data requirements for the chip
erase command sequence.
When the Embedded Erase algorithm is complete,
that bank returns to the read mode and addresses are
no longer latched. The system can determine the status of the erase operation by using DQ7, DQ6, DQ2,
or RY/BY#. Refer to the Write Operation Status section for information on these status bits. Note that the
SecSi Sector, autoselect, and CFI functions are unavailable when an erase operation is in progress.
30
After the command sequence is written, a sector erase
time-out of 80 µs occurs. During the time-out period,
additional sector addresses and sector erase commands may be written. Loading the sector erase buffer
may be done in any sequence, and the number of sectors may be from one sector to all sectors. The time
between these additional cycles must be less than 80
µs, otherwise erasure may begin. Any sector erase
address and command following the exceeded
time-out may or may not be accepted. It is recommended that processor interrupts be disabled during
this time to ensure all commands are accepted. The
interrupts can be re-enabled after the last Sector
Erase command is written. Any command other than
Se ct o r Er ase o r E ras e Sus pe n d d u ri ng t h e
time-out period resets that bank to the read mode.
The system must rewrite the command sequence and
any additional addresses and commands. Note that
the SecSi Sector, autoselect, and CFI functions are
unavailable when an erase operation is in progress.
The system can monitor DQ3 to determine if the sector erase timer has timed out (See the section on DQ3:
Sector Erase Timer.). The time-out begins from the rising edge of the final WE# pulse in the command
sequence.
When the Embedded Erase algorithm is complete, the
bank returns to reading array data and addresses are
no longer latched. Note that while the Embedded
Erase operation is in progress, the system can read
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
data from the non-erasing bank. The system can determine the status of the erase operation by reading
DQ7, DQ6, DQ2, or RY/BY# in the erasing bank.
Refer to the Write Operation Status section for information on these status bits.
Once the sector erase operation has begun, only the
Erase Suspend command is valid. All other commands are ignored. However, note that a hardware
reset immediately terminates the erase operation. If
that occurs, the sector erase command sequence
should be reinitiated once that bank has returned to
reading array data, to ensure data integrity.
Figure 5 illustrates the algorithm for the erase operation. Refer to the Erase and Program Operations tables in the AC Characteristics section for parameters,
and Figure 17 section for timing diagrams.
In the erase-suspend-read mode, the system can also
issue the autoselect command sequence. The device
allows reading autoselect codes even at addresses
within erasing sectors, since the codes are not stored
in the memory array. When the device exits the autoselect mode, the device reverts to the Erase Suspend mode, and is ready for another valid operation.
Refer to the Autoselect Mode and Autoselect Command Sequence sections for details.
To resume the sector erase operation, the system
must write the Erase Resume command (address bits
are don’t care). The bank address of the erase-suspended bank is required when writing this command.
Further writes of the Resume command are ignored.
Another Erase Suspend command can be written after
the chip has resumed erasing.
Erase Suspend/Erase Resume
Commands
START
The Erase Suspend command, B0h, allows the system to interrupt a sector erase operation and then read
data from, or program data to, any sector not selected
for erasure. The bank address is required when writing
this command. This command is valid only during the
sector erase operation, including the 80 µs time-out
period during the sector erase command sequence.
The Erase Suspend command is ignored if written during the chip erase operation or Embedded Program
algorithm.
Write Erase
Command Sequence
(Notes 1, 2)
Data Poll to Erasing
Bank from System
When the Erase Suspend command is written during
the sector erase operation, the device requires a maximum of 20 µs to suspend the erase operation. However, when the Erase Suspend command is written
during the sector erase time-out, the device immediately terminates the time-out period and suspends the
erase operation. Addresses are “don’t-cares” when
writing the Erase suspend command.
No
Embedded
Erase
algorithm
in progress
Data = FFh?
Yes
Erasure Completed
After the erase operation has been suspended, the
bank enters the erase-suspend-read mode. The system can read data from or program data to any sector
not selected for erasure. (The device “erase suspends” all sectors selected for erasure.) Reading at
any address within erase-suspended sectors produces status information on DQ7–DQ0. The system
can use DQ7, or DQ6 and DQ2 together, to determine
if a sector is actively erasing or is erase-suspended.
Refer to the Write Operation Status section for information on these status bits.
Password Program Command
After an erase-suspended program operation is complete, the bank returns to the erase-suspend-read
mode. The system can determine the status of the
program operation using the DQ7 or DQ6 status bits,
just as in the standard Word Program operation.
Refer to the Write Operation Status section for more
information.
The Password Program Command permits programming the password that is used as part of the hardware protection scheme. The actual password is
64-bits long. Four Password Program commands are
required to program the password. The system must
enter the unlock cycle, password program command
(38h) and the program address/data for each portion
February 26, 2003
Notes:
1. See Table 14 for erase command sequence.
2. See the section on DQ3 for information on the sector
erase timer.
Figure 5. Erase Operation
Am29PDL640G
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P R E L I M I N A R Y
of the password when programming. There are no
provisions for entering the 2-cycle unlock cycle, the
password program command, and all the password
data. There is no special addressing order required for
programming the password. Also, when the password
is undergoing programming, Simultaneous Operation
is disabled. Read operations to any memory location
will return the programming status. Once programming is complete, the user must issue a Read/Reset
command to return the device to normal operation.
Once the Password is written and verified, the Password Mode Locking Bit must be set in order to prevent
verification. The Password Program Command is only
capable of programming “0”s. Programming a “1” after
a cell is programmed as a “0” results in a time-out by
the Embedded Program Algorithm™ with the cell remaining as a “0”. The password is all ones when
shipped from the factory. All 64-bit password combinations are valid as a password.
Persistent Sector Protection Mode
Locking Bit Program Command
Password Verify Command
The SecSi Sector Protection Bit Program Command
programs the SecSi Sector Protection Bit, which prevents the SecSi sector memory from being cleared. If
the SecSi Sector Protection Bit is verified as programmed without margin, the SecSi Sector Protection
Bit Program Command should be reissued to improve
program margin. Exiting the V CC-level SecSi Sector
Protection Bit Program Command is accomplished by
writing the Read/Reset command.
The Password Verify Command is used to verify the
Password. The Password is verifiable only when the
Password Mode Locking Bit is not programmed. If the
Password Mode Locking Bit is programmed and the
user attempts to verify the Password, the device will
always drive all F’s onto the DQ data bus.
The Password Verify command is permitted if the
SecSi sector is enabled. Also, the device will not operate in Simultaneous Operation when the Password
Verify command is executed. Only the password is returned regardless of the bank address. The lower two
address bits (A1-A0) are valid during the Password
Verify. Writing the Read/Reset command returns the
device back to normal operation.
Password Protection Mode Locking Bit
Program Command
The Password Protection Mode Locking Bit Program
Command programs the Password Protection Mode
Locking Bit, which prevents further verifies or updates
to the Password. Once programmed, the Password
Protection Mode Locking Bit cannot be erased! If the
Password Protection Mode Locking Bit is verified as
program without margin, the Password Protection
Mode Locking Bit Program command can be executed
to improve the program margin. Once the Password
Protection Mode Locking Bit is programmed, the Persistent Sector Protection Locking Bit program circuitry
is disabled, thereby forcing the device to remain in the
Password Protection mode. Exiting the Mode Locking
Bit Program command is accomplished by writing the
Read/Reset command.
32
The Persistent Sector Protection Mode Locking Bit
Program Command programs the Persistent Sector
Protection Mode Locking Bit, which prevents the Password Mode Locking Bit from ever being programmed.
If the Persistent Sector Protection Mode Locking Bit is
verified as programmed without margin, the Persistent
Sector Protection Mode Locking Bit Program Command should be reissued to improve program margin.
By disabling the program circuitry of the Password
Mode Locking Bit, the device is forced to remain in the
Persistent Sector Protection mode of operation, once
this bit is set. Exiting the Persistent Protection Mode
Locking Bit Program command is accomplished by
writing the Read/Reset command.
SecSi Sector Protection Bit Program
Command
PPB Lock Bit Set Command
The PPB Lock Bit Set command is used to set the
PPB Lock bit if it is cleared either at reset or if the
Password Unlock command was successfully executed. There is no PPB Lock Bit Clear command.
Once the PPB Lock Bit is set, it cannot be cleared unless the device is taken through a power-on clear or
the Password Unlock command is executed. Upon
setting the PPB Lock Bit, the PPBs are latched into the
DYBs. If the Password Mode Locking Bit is set, the
PPB Lock Bit status is reflected as set, even after a
power-on reset cycle. Exiting the PPB Lock Bit Set
command is accomplished by writing the Read/Reset
command (only in the Persistent Protection Mode).
DYB Write Command
The DYB Write command is used to set or clear a DYB
for a given sector. The high order address bits
(A21–A12) are issued at the same time as the code
01h or 00h on DQ7-DQ0. All other DQ data bus pins
are ignored during the data write cycle. The DYBs are
modifiable at any time, regardless of the state of the
PPB or PPB Lock Bit. The DYBs are cleared at
power-up or hardware reset.Exiting the DYB Write
command is accomplished by writing the Read/Reset
command.
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P R E L I M I N A R Y
Password Unlock Command
The Password Unlock command is used to clear the
PPB Lock Bit so that the PPBs can be unlocked for
modification, thereby allowing the PPBs to become accessible for modification. The exact password must be
entered in order for the unlocking function to occur.
This command cannot be issued any faster than 2 µs
at a time to prevent a hacker from running through all
64-bit combinations in an attempt to correctly match a
password. If the command is issued before the 2 µs
execution window for each portion of the unlock, the
command will be ignored.
Once the Password Unlock command is entered, the
RY/BY# indicates that the device is busy. Approximately 2 µs is required for each portion of the unlock.
Once the first portion of the password unlock completes (RY/BY# is not low or DQ6 does not toggle
when read), the Password Unlock command and next
part of the password are written. The system must
thus monitor RY/BY# or the status bits to confirm
when to write the next portion of the password.
Note that immediately following successful unlock,
write the SecSi Sector exit command before attempting to verify, program, or erase the PPBs.
PPB Program Command
The PPB Program command is used to program, or
set, a given PPB. Each PPB is individually programmed (but is bulk erased with the other PPBs).
The specific sector address (A21–A12) are written at
the same time as the program command 60h with A6
= 0. If the PPB Lock Bit is set and the corresponding
PPB is set for the sector, the PPB Program command
will not execute and the command will time-out without
programming the PPB.
After programming a PPB, two additional cycles are
needed to determine whether the PPB has been programmed with margin. If the PPB has been programmed without margin, the program command
should be reissued to improve the program margin.
Also note that the total number of PPB program/erase
cycles is limited to 100 cycles. Cycling the PPBs beyond 100 cycles is not guaranteed.
The PPB Program command does not follow the Embedded Program algorithm.
All PPB Erase Command
The All PPB Erase command is used to erase all
PPBs in bulk. There is no means for individually erasing a specific PPB. Unlike the PPB program, no specific sector address is required. However, when the
PPB erase command is written all Sector PPBs are
erased in parallel. If the PPB Lock Bit is set the ALL
PPB Erase command will not execute and the command will time-out without erasing the PPBs. After
February 26, 2003
erasing the PPBs, two additional cycles are needed to
determine whether the PPB has been erased with
margin. If the PPBs has been erased without margin,
the erase command should be reissued to improve the
program margin.
It is the responsibility of the user to preprogram all
PPBs prior to issuing the All PPB Erase command. If
the user attempts to erase a cleared PPB, over-erasure may occur making it difficult to program the PPB
at a later time. Also note that the total number of PPB
program/erase cycles is limited to 100 cycles. Cycling
the PPBs beyond 100 cycles is not guaranteed.
DYB Write Command
The DYB Write command is used for setting the DYB,
which is a volatile bit that is cleared at reset. There is
one DYB per sector. If the PPB is set, the sector is
protected regardless of the value of the DYB. If the
PPB is cleared, setting the DYB to a 1 protects the
sector from programs or erases. Since this is a volatile
bit, removing power or resetting the device will clear
the DYBs. The bank address is latched when the command is written.
PPB Lock Bit Set Command
The PPB Lock Bit set command is used for setting the
DYB, which is a volatile bit that is cleared at reset.
There is one DYB per sector. If the PPB is set, the
sector is protected regardless of the value of the DYB.
If the PPB is cleared, setting the DYB to a 1 protects
the sector from programs or erases. Since this is a volatile bit, removing power or resetting the device will
clear the DYBs. The bank address is latched when the
command is written.
PPB Status Command
The programming of the PPB for a given sector can be
verified by writing a PPB status verify command to the
device.
PPB Lock Bit Status Command
The programming of the PPB Lock Bit for a given sector can be verified by writing a PPB Lock Bit status
verify command to the device.
Note that immediately following the PPB Lock Status
Command write the SecSi Sector Exit command before attempting to verify, program, or erase the PPBs.
Sector Protection Status Command
The programming of either the PPB or DYB for a given
sector or sector group can be verified by writing a Sector Protection Status command to the device.
Note that there is no single command to independently
verify the programming of a DYB for a given sector
group.
Am29PDL640G
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P R E L I M I N A R Y
Command Definitions Tables
Command (Notes)
Cycles
Table 14. Memory Array Command Definitions
Bus Cycles (Notes 1–4)
Addr Data Addr Data
Addr
Data
Addr
Data
Read (5)
1
RA
Reset (6)
1
XXX
F0
Manufacturer ID
4
555
AA
2AA
55
(BA) 555
90
(BA)X00
01
Device ID (10)
6
555
AA
2AA
55
(BA) 555
90
(BA)X01
7E
Autoselect
(Note 7)
Addr
Data
Addr
Data
(BA)X0E
15
(BA)X0F
01
RD
SecSi Sector Factory
Protect (8)
4
555
AA
2AA
55
(BA) 555
90
X03
(see
note 8)
Sector Group Protect
Verify (9)
4
555
AA
2AA
55
(BA) 555
90
(SA)X02
XX00/
XX01
Program
4
555
AA
2AA
55
555
A0
PA
PD
Chip Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Sector Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
SA
30
Program/Erase Suspend (11)
1
BA
B0
Program/Erase Resume (12)
1
BA
30
CFI Query (13)
1
55
98
Accelerated Program (14)
2
XX
A0
PA
PD
Unlock Bypass Entry (15)
3
555
AA
2AA
55
555
20
Unlock Bypass Program (15)
2
XX
A0
PA
PD
Unlock Bypass Erase (15)
2
XX
80
XX
10
Unlock Bypass CFI (13, 15)
1
XX
98
Unlock Bypass Reset (15)
2
XX
90
XX
00
Legend:
BA = Address of bank switching to autoselect mode, bypass mode, or
erase operation. Determined by A21:A19, see Tables 4 and 5 for
more detail.
PA = Program Address (A21:A0). Addresses latch on falling edge of
WE# or CE# pulse, whichever happens later.
PD = Program Data (DQ15:DQ0) written to location PA. Data latches
on rising edge of WE# or CE# pulse, whichever happens first.
RA = Read Address (A21:A0).
RD = Read Data (DQ15:DQ0) from location RA.
SA = Sector Address (A21:A12) for verifying (in autoselect mode) or
erasing.
WD = Write Data. See “Configuration Register” definition for specific
write data. Data latched on rising edge of WE#.
X = Don’t care
Notes:
1. See Table 1 for description of bus operations.
8.
The data is 80h for factory locked and 00h for not factory locked.
2.
All values are in hexadecimal.
9.
3.
Shaded cells in table denote read cycles. All other cycles are
write operations.
The data is 00h for an unprotected sector group and 01h for a
protected sector group.
10. Device ID must be read across cycles 4, 5, and 6.
4.
During unlock and command cycles, when lower address bits are
555 or 2AAh as shown in table, address bits higher than A11
(except where BA is required) and data bits higher than DQ7 are
don’t cares.
11. System may read and program in non-erasing sectors, or enter
autoselect mode, when in Program/Erase Suspend mode.
Program/Erase Suspend command is valid only during a sector
erase operation, and requires bank address.
5.
No unlock or command cycles required when bank is reading
array data.
12. Program/Erase Resume command is valid only during Erase
Suspend mode, and requires bank address.
6.
The Reset command is required to return to reading array (or to
erase-suspend-read mode if previously in Erase Suspend) when
bank is in autoselect mode, or if DQ5 goes high (while bank is
providing status information).
13. Command is valid when device is ready to read array data or
when device is in autoselect mode.
7.
34
Fourth cycle of autoselect command sequence is a read cycle.
System must provide bank address to obtain manufacturer ID or
device ID information. See Autoselect Command Sequence
section for more information.
14. WP#/ACC must be at VID during the entire operation of command.
15. Unlock Bypass Entry command is required prior to any Unlock
Bypass operation. Unlock Bypass Reset command is required to
return to the reading array.
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P R E L I M I N A R Y
Table 15.
Sector Protection Command Definitions
Cycles
Bus Cycles (Notes 1-4)
Command (Notes)
Addr Data Addr Data Addr Data
Reset
1
XXX
F0
SecSi Sector Entry
3
555
AA
2AA
55
555
88
SecSi Sector Exit
4
555
AA
2AA
55
555
90
XX
00
SecSi Protection Bit Program (5, 6)
6
555
AA
2AA
55
555
60
OW
68
SecSi Protection Bit Status
4
555
AA
2AA
55
555
60
OW
RD(0)
Password Program (5, 7, 8)
4
555
AA
2AA
55
555
38
XX[0-3]
PD[0-3]
Password Verify (8, 9)
4
555
AA
2AA
55
555
C8
PWA[0-3] PWD[0-3]
Password Unlock (7, 10, 11, 17)
4
555
AA
2AA
55
555
28
PWA[0-3] PWD[0-3]
PPB Program (5, 6, 12)
6
555
AA
2AA
55
555
60
(SA)WP
All PPB Erase (5, 13, 14)
6
555
AA
2AA
55
555
60
EP
PPB Lock Bit Set
3
555
AA
2AA
55
555
78
RD(1)
Addr
Data
Addr
Data
Addr
Data
OW
48
OW
RD(0)
68
(SA)WP
48
(SA)WP RD(0)
60
(SA)EP
40
(SA)WP RD(0)
PL
48
PL
RD(0)
SL
48
SL
RD(0)
PPB Lock Bit Status (15, 18)
4
555
AA
2AA
55
555
58
SA
DYB Write (7)
4
555
AA
2AA
55
555
48
SA
X1
DYB Erase (7)
4
555
AA
2AA
55
555
48
SA
X0
RD(0)
DYB Status
4
555
AA
2AA
55
555
58
SA
PPMLB Program (5, 6, 12)
6
555
AA
2AA
55
555
60
PL
68
PPMLB Status (5)
4
555
AA
2AA
55
555
60
PL
RD(0)
SPMLB Program (5, 6, 12)
6
555
AA
2AA
55
555
60
SL
68
SPMLB Status (5)
4
555
AA
2AA
55
555
60
SL
RD(0)
Legend:
DYB = Dynamic Protection Bit
OW = Address (A6:A0) is (0011010)
PD[3:0] = Password Data (1 of 4 portions)
PPB = Persistent Protection Bit
PWA = Password Address. A1:A0 selects portion of password.
PWD = Password Data being verified.
PL = Password Protection Mode Lock Address (A5:A0) is (001010)
RD(0) = Read Data DQ0 for protection indicator bit.
RD(1) = Read Data DQ1 for PPB Lock status.
SA = Sector Address where security command applies. Address bits
A21:A12 uniquely select any sector.
SL = Persistent Protection Mode Lock Address (A5:A0) is (010010)
WP = PPB Address (A6:A0) is (0111010) (Note 16)
EP = PPB Erase Address (A6:A0) is (1111010) (Note 16)
X = Don’t care
PPMLB = Password Protection Mode Locking Bit
SPMLB = Persistent Protection Mode Locking Bit
1.
See Table 1 for description of bus operations.
11. A 2 µs timeout is required between any two portions of password.
2.
All values are in hexadecimal.
12. A 100 µs timeout is required between cycles 4 and 5.
3.
Shaded cells in table denote read cycles. All other cycles are
write operations.
13. A 1.2 ms timeout is required between cycles 4 and 5.
4.
During unlock and command cycles, when lower address bits are
555 or 2AAh as shown in table, address bits higher than A11
(except where BA is required) and data bits higher than DQ7 are
don’t cares.
14. Cycle 4 erases all PPBs. Cycles 5 and 6 validate bits have been
fully erased when DQ0 = 0. If DQ0 = 1 in cycle 6, erase command
must be issued and verified again. Before issuing erase
command, all PPBs should be programmed to prevent PPB
overerasure.
5.
The reset command returns device to reading array.
15. DQ1 = 1 if PPB locked, 0 if unlocked.
6.
Cycle 4 programs the addressed locking bit. Cycles 5 and 6
validate bit has been fully programmed when DQ0 = 1. If DQ0 = 0
in cycle 6, program command must be issued and verified again.
16. For all other parts that use the Persistent Protection Bit (excluding
PDL128G), the WP and EP addresses are 00000010.
7.
Data is latched on the rising edge of WE#.
8.
Entire command sequence must be entered for each portion of
password.
9.
Command sequence returns FFh if PPMLB is set.
10. The password is written over four consecutive cycles, at
addresses 0-3.
February 26, 2003
17. Immediately following successful unlock, write the SecSi Sector
Exit command before attempting to verify, program, or erase the
PPBs.
18. Immediately following the PPB Lock Status command write the
SecSi Sector Exit command before attempting to verify, program,
or erase the PPBs.
Am29PDL640G
35
P R E L I M I N A R Y
WRITE OPERATION STATUS
The device provides several bits to determine the status of
a program or erase operation: DQ2, DQ3, DQ5, DQ6, and
DQ7. Table 16 and the following subsections describe the
function of these bits. DQ7 and DQ6 each offer a method
for determining whether a program or erase operation is
complete or in progress. The device also provides a hardware-based output signal, RY/BY#, to determine whether
an Embedded Program or Erase operation is in progress or
has been completed.
pleted the program or erase operation and DQ7 has
valid data, the data outputs on DQ15–DQ0 may be still
invalid. Valid data on DQ15–DQ0 will appear on successive read cycles.
Table 16 shows the outputs for Data# Polling on DQ7.
Figure 6 shows the Data# Polling algorithm. Figure 19
in the AC Characteristics section shows the Data#
Polling timing diagram.
DQ7: Data# Polling
The Data# Polling bit, DQ7, indicates to the host system
whether an Embedded Program or Erase algorithm is in
progress or completed, or whether a bank is in Erase Suspend. Data# Polling is valid after the rising edge of the final
WE# pulse in the command sequence.
During the Embedded Program algorithm, the device outputs on DQ7 the complement of the datum programmed to
DQ7. This DQ7 status also applies to programming during
Erase Suspend. When the Embedded Program algorithm is
complete, the device outputs the datum programmed to
DQ7. The system must provide the program address to
read valid status information on DQ7. If a program address
falls within a protected sector, Data# Polling on DQ7 is active for approximately 1 µs, then that bank returns to the
read mode.
START
Read DQ7–DQ0
Addr = VA
DQ7 = Data?
No
No
During the Embedded Erase algorithm, Data# Polling
produces a “0” on DQ7. When the Embedded Erase
algorithm is complete, or if the bank enters the Erase
Suspend mode, Data# Polling produces a “1” on DQ7.
The system must provide an address within any of the
sectors selected for erasure to read valid status information on DQ7.
36
DQ5 = 1?
Yes
Read DQ7–DQ0
Addr = VA
After an erase command sequence is written, if all
sectors selected for erasing are protected, Data# Polling on DQ7 is active for approximately 100 µs, then
the bank returns to the read mode. If not all selected
sectors are protected, the Embedded Erase algorithm
erases the unprotected sectors, and ignores the selected sectors that are protected. However, if the system reads DQ7 at an address within a protected
sector, the status may not be valid.
When the system detects DQ7 has changed from the
complement to true data, it can read valid data at
DQ15–DQ0 on the following read cycles. Just prior to
the completion of an Embedded Program or Erase operation, DQ7 may change asynchronously with
DQ15–DQ0 while Output Enable (OE#) is asserted
low. That is, the device may change from providing
status information to valid data on DQ7. Depending on
when the system samples the DQ7 output, it may read
the status or valid data. Even if the device has com-
Yes
DQ7 = Data?
Yes
No
FAIL
PASS
Notes:
1. VA = Valid address for programming. During a sector
erase operation, a valid address is any sector address
within the sector being erased. During chip erase, a
valid address is any non-protected sector address.
2. DQ7 should be rechecked even if DQ5 = “1” because
DQ7 may change simultaneously with DQ5.
Am29PDL640G
Figure 6. Data# Polling Algorithm
February 26, 2003
P R E L I M I N A R Y
RY/BY#: Ready/Busy#
The RY/BY# is a dedicated, open-drain output pin
which indicates whether an Embedded Algorithm is in
progress or complete. The RY/BY# status is valid after
the rising edge of the final WE# pulse in the command
sequence. Since RY/BY# is an open-drain output, several RY/BY# pins can be tied together in parallel with a
pull-up resistor to VCC.
If the output is low (Busy), the device is actively erasing or programming. (This includes programming in
the Erase Suspend mode.) If the output is high
(Ready), the device is in the read mode, the standby
mode, or one of the banks is in the erase-suspend-read mode.
DQ6 also toggles during the erase-suspend-program
mode, and stops toggling once the Embedded Program algorithm is complete.
Table 16 shows the outputs for Toggle Bit I on DQ6.
Figure 7 shows the toggle bit algorithm. Figure 20 in
the “AC Characteristics” section shows the toggle bit
timing diagrams. Figure 21 shows the differences between DQ2 and DQ6 in graphical form. See also the
subsection on DQ2: Toggle Bit II.
START
Table 16 shows the outputs for RY/BY#.
Read Byte
(DQ7–DQ0)
Address =VA
DQ6: Toggle Bit I
Toggle Bit I on DQ6 indicates whether an Embedded
Program or Erase algorithm is in progress or complete, or whether the device has entered the Erase
Suspend mode. Toggle Bit I may be read at any address, and is valid after the rising edge of the final
WE# pulse in the command sequence (prior to the
program or erase operation), and during the sector
erase time-out.
During an Embedded Program or Erase algorithm operation, successive read cycles to any address cause
DQ6 to toggle. The system may use either OE# or
CE# to control the read cycles. When the operation is
complete, DQ6 stops toggling.
Read Byte
(DQ7–DQ0)
Address =VA
Toggle Bit
= Toggle?
Yes
No
After an erase command sequence is written, if all
sectors selected for erasing are protected, DQ6 toggles for approximately 100 µs, then returns to reading
array data. If not all selected sectors are protected, the
Embedded Erase algorithm erases the unprotected
sectors, and ignores the selected sectors that are protected.
DQ5 = 1?
Yes
Read Byte Twice
(DQ7–DQ0)
Address = VA
The system can use DQ6 and DQ2 together to determine whether a sector is actively erasing or is
erase-suspended. When the device is actively erasing
(that is, the Embedded Erase algorithm is in progress),
DQ6 toggles. When the device enters the Erase Suspend mode, DQ6 stops toggling. However, the system
must also use DQ2 to determine which sectors are
erasing or erase-suspended. Alternatively, the system
can use DQ7 (see the subsection on DQ7: Data# Polling).
If a program address falls within a protected sector,
DQ6 toggles for approximately 1 µs after the program
command sequence is written, then returns to reading
array data.
No
Toggle Bit
= Toggle?
No
Yes
Program/Erase
Operation Not
Complete, Write
Reset Command
Program/Erase
Operation Complete
Note: The system should recheck the toggle bit even if DQ5
= “1” because the toggle bit may stop toggling as DQ5
changes to “1.” See the subsections on DQ6 and DQ2 for
more information.
Figure 7. Toggle Bit Algorithm
February 26, 2003
Am29PDL640G
37
P R E L I M I N A R Y
DQ2: Toggle Bit II
The “Toggle Bit II” on DQ2, when used with DQ6, indicates whether a particular sector is actively erasing
(that is, the Embedded Erase algorithm is in progress),
or whether that sector is erase-suspended. Toggle Bit
II is valid after the rising edge of the final WE# pulse in
the command sequence.
the toggle bit and DQ5 through successive read cycles, determining the status as described in the previous paragraph. Alternatively, it may choose to perform
other system tasks. In this case, the system must start
at the beginning of the algorithm when it returns to determine the status of the operation (top of Figure 7).
DQ5: Exceeded Timing Limits
DQ2 toggles when the system reads at addresses
within those sectors that have been selected for erasure. (The system may use either OE# or CE# to control the read cycles.) But DQ2 cannot distinguish
whether the sector is actively erasing or is erase-suspended. DQ6, by comparison, indicates whether the
device is actively erasing, or is in Erase Suspend, but
cannot distinguish which sectors are selected for erasure. Thus, both status bits are required for sector and
mode information. Refer to Table 16 to compare outputs for DQ2 and DQ6.
DQ5 indicates whether the program or erase time has
exceeded a specified internal pulse count limit. Under these
conditions DQ5 produces a “1,” indicating that the program
or erase cycle was not successfully completed.
Figure 7 shows the toggle bit algorithm in flowchart
form, and the section “DQ2: Toggle Bit II” explains the
algorithm. See also the DQ6: Toggle Bit I subsection.
Figure 20 shows the toggle bit timing diagram. Figure
21 shows the differences between DQ2 and DQ6 in
graphical form.
Under both these conditions, the system must write
the reset command to return to the read mode (or to
the erase-suspend-read mode if a bank was previously in the erase-suspend-program mode).
Reading Toggle Bits DQ6/DQ2
Refer to Figure 7 for the following discussion. Whenever the system initially begins reading toggle bit status, it must read DQ15–DQ0 at least twice in a row to
determine whether a toggle bit is toggling. Typically,
the system would note and store the value of the toggle bit after the first read. After the second read, the
system would compare the new value of the toggle bit
with the first. If the toggle bit is not toggling, the device
has completed the program or erase operation. The
system can read array data on DQ15–DQ0 on the following read cycle.
However, if after the initial two read cycles, the system
determines that the toggle bit is still toggling, the system also should note whether the value of DQ5 is high
(see the section on DQ5). If it is, the system should
then determine again whether the toggle bit is toggling, since the toggle bit may have stopped toggling
just as DQ5 went high. If the toggle bit is no longer
toggling, the device has successfully completed the
program or erase operation. If it is still toggling, the device did not completed the operation successfully, and
the system must write the reset command to return to
reading array data.
The remaining scenario is that the system initially determines that the toggle bit is toggling and DQ5 has
not gone high. The system may continue to monitor
38
The device may output a “1” on DQ5 if the system tries
to program a “1” to a location that was previously programmed to “0.” Only an erase operation can
change a “0” back to a “1.” Under this condition, the
device halts the operation, and when the timing limit
has been exceeded, DQ5 produces a “1.”
DQ3: Sector Erase Timer
After writing a sector erase command sequence, the
system may read DQ3 to determine whether or not
erasure has begun. (The sector erase timer does not
apply to the chip erase command.) If additional
sectors are selected for erasure, the entire time-out
also applies after each additional sector erase command. When the time-out period is complete, DQ3
switches from a “0” to a “1.” If the time between additional sector erase commands from the system can be
assumed to be less than 50 µs, the system need not
monitor DQ3. See also the Sector Erase Command
Sequence section.
After the sector erase command is written, the system
should read the status of DQ7 (Data# Polling) or DQ6
(Toggle Bit I) to ensure that the device has accepted
the command sequence, and then read DQ3. If DQ3 is
“1,” the Embedded Erase algorithm has begun; all further commands (except Erase Suspend) are ignored
until the erase operation is complete. If DQ3 is “0,” the
device will accept additional sector erase commands.
To ensure the command has been accepted, the system software should check the status of DQ3 prior to
and following each subsequent sector erase command. If DQ3 is high on the second status check, the
last command might not have been accepted.
Table 16 shows the status of DQ3 relative to the other
status bits.
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
Table 16. Write Operation Status
Standard
Mode
Erase
Suspend
Mode
Status
Embedded Program Algorithm
Embedded Erase Algorithm
Erase
Erase-Suspend- Suspended Sector
Read
Non-Erase
Suspended Sector
Erase-Suspend-Program
DQ7
(Note 2)
DQ7#
0
DQ6
Toggle
Toggle
DQ5
(Note 1)
0
0
DQ3
N/A
1
DQ2
(Note 2)
No toggle
Toggle
RY/BY#
0
0
1
No toggle
0
N/A
Toggle
1
Data
Data
Data
Data
Data
1
DQ7#
Toggle
0
N/A
N/A
0
Notes:
1. DQ5 switches to ‘1’ when an Embedded Program or Embedded Erase operation has exceeded the maximum timing limits.
Refer to the section on DQ5 for more information.
2. DQ7 and DQ2 require a valid address when reading status information. Refer to the appropriate subsection for further
details.
3. When reading write operation status bits, the system must always provide the bank address where the Embedded Algorithm
is in progress. The device outputs array data if the system addresses a non-busy bank.
February 26, 2003
Am29PDL640G
39
P R E L I M I N A R Y
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
Plastic Packages . . . . . . . . . . . . . . . –65°C to +150°C
20 ns
Ambient Temperature
with Power Applied . . . . . . . . . . . . . –65°C to +125°C
+0.8 V
Voltage with Respect to Ground
–0.5 V
VCC (Note 1) . . . . . . . . . . . . . . . . .–0.5 V to +4.0 V
A9, OE#, and RESET#
(Note 2) . . . . . . . . . . . . . . . . . . . .–0.5 V to +12.5 V
20 ns
–2.0 V
20 ns
WP#/ACC (Note 2) . . . . . . . . . . .–0.5 V to +10.5 V
All other pins (Note 1) . . . . . . –0.5 V to VCC +0.5 V
Figure 8. Maximum Negative
Overshoot Waveform
Output Short Circuit Current (Note 3) . . . . . . 200 mA
Notes:
1. Minimum DC voltage on input or I/O pins is –0.5 V.
During voltage transitions, input or I/O pins may
overshoot V SS to –2.0 V for periods of up to 20 ns.
Maximum DC voltage on input or I/O pins is VCC +0.5 V.
See Figure 8. During voltage transitions, input or I/O pins
may overshoot to VCC +2.0 V for periods up to 20 ns. See
Figure 9.
2. Minimum DC input voltage on pins A9, OE#, RESET#,
and WP#/ACC is –0.5 V. During voltage transitions, A9,
OE#, WP#/ACC, and RESET# may overshoot V SS to
–2.0 V for periods of up to 20 ns. See Figure 8. Maximum
DC input voltage on pin A9, OE#, and RESET# is +12.5
V which may overshoot to +14.0 V for periods up to 20
ns. Maximum DC input voltage on WP#/ACC is +9.5 V
which may overshoot to +12.0 V for periods up to 20 ns.
20 ns
VCC
+2.0 V
VCC
+0.5 V
2.0 V
20 ns
20 ns
Figure 9. Maximum Positive
Overshoot Waveform
3. No more than one output may be shorted to ground at a
time. Duration of the short circuit should not be greater
than one second.
Stresses above those listed under “Absolute Maximum
Ratings” may cause permanent damage to the device. This
is a stress rating only; functional operation of the device at
these or any other conditions above those indicated in the
operational sections of this data sheet is not implied.
Exposure of the device to absolute maximum rating
conditions for extended periods may affect device reliability.
OPERATING RANGES
Supply Voltages
VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.7–3.1 V
Industrial (I) Devices
Ambient Temperature (TA) . . . . . . . . . –40°C to +85°C
VIO (see Note) . . . . . . . . . . . 1.65–1.95 V or 2.7–3.1 V
Note: For all AC and DC specifications, VIO = VCC; contact
AMD for other VIO options.
Operating ranges define those limits between which the
functionality of the device is guaranteed.
40
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
DC CHARACTERISTICS
CMOS Compatible
Parameter
Symbol
Parameter Description
Test Conditions
Min
Typ
VIN = VSS to VCC,
VCC = VCC max
ILI
Input Load Current
ILIT
A9, OE#, RESET# Input Load Current
VCC = VCC max; VID= 12.5 V
ILO
Output Leakage Current
VOUT = VSS to VCC, OE# = VIH
VCC = VCC max
ICC1
VCC Active Read Current (Notes 1, 2)
CE# = VIL, OE# = VIH, VCC
= VCC max
ICC2
VCC Active Write Current (Notes 2, 3)
ICC3
ICC4
Max
Unit
±1.0
µA
35
µA
±1.0
µA
5 MHz
10
20
10 MHz
25
45
CE# = VIL, OE# = VIH, WE# = VIL
15
30
mA
VCC Standby Current (Note 2)
CE#, RESET#, WP#/ACC = VIO ± 0.3 V
1
5
µA
VCC Reset Current (Note 2)
RESET# = VSS ± 0.3 V
1
5
µA
ICC5
Automatic Sleep Mode (Notes 2, 4)
VIH = VIO ± 0.3 V;
VIL = VSS ± 0.3 V
1
5
µA
ICC6
VCC Active Read-While-Program Current
(Notes 1, 2)
CE# = VIL, OE# = VIH
Word
21
45
mA
ICC7
VCC Active Read-While-Erase Current
(Notes 1, 2)
CE# = VIL, OE# = VIH
Word
21
45
mA
ICC8
VCC Active Program-While-EraseSuspended Current (Notes 2, 5)
CE# = VIL, OE# = VIH
17
35
mA
VIL
Input Low Voltage
VIH
Input High Voltage
VHH
Voltage for ACC Program Acceleration
VCC = 3.0 V ± 10%
VID
Voltage for Autoselect and Temporary
Sector Unprotect
VCC = 3.0 V ± 10%
VOL
Output Low Voltage
VOH
Output High Voltage
VLKO
Low VCC Lock-Out Voltage (Note 5)
VIO = 1.65–1.95 V
–0.4
0.4
V
VIO = 2.7–3.1 V
–0.5
0.8
V
VIO–0.4
VIO+0.4
V
2
VCC+0.3
V
8.5
9.5
V
11.5
12.5
V
VIO = 1.65–1.95 V
VIO = 2.7–3.1 V
IOL = 100 µA, VCC = VCC min, VIO = 1.65–1.95 V
0.1
V
IOL = 4.0 mA, VCC = VCC min, VIO = 2.7–3.1 V
0.4
V
IOH = –100 µA, VCC = VCC min,
VIO = 1.65–1.95 V
IOH = –2.0 mA, VCC = VCC min, VIO = 2.7–3.1 V
VIO–0.1
2.
Maximum ICC specifications are tested with VCC = VCCmax.
3.
ICC active while Embedded Erase or Embedded Program is in
progress.
V
2.4
2.3
Notes:
1. The ICC current listed is typically less than 2 mA/MHz, with OE# at
VIH.
February 26, 2003
mA
V
2.5
V
4.
Automatic sleep mode enables the low power mode when
addresses remain stable for tACC + 30 ns. Typical sleep mode
current is 200 nA.
5.
Not 100% tested.
Am29PDL640G
41
P R E L I M I N A R Y
TEST CONDITIONS
Table 17. Test Specifications
3.0 V
Test Condition
2.7 kΩ
Device
Under
Test
63, 98
Output Load
30
Input Rise and Fall Times
6.2 kΩ
Figure 10.
70
pF
5
ns
0.0–3.0
V
Input timing measurement
reference levels
1.5
V
Output timing measurement
reference levels
1.5
V
Input Pulse Levels
Note: Diodes are IN3064 or equivalent
Unit
1 TTL gate
Output Load Capacitance, CL
(including jig capacitance)
CL
73, 83
Test Setup
KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
OUTPUTS
Steady
Changing from H to L
Changing from L to H
3.0 V
Input
Don’t Care, Any Change Permitted
Changing, State Unknown
Does Not Apply
Center Line is High Impedance State (High Z)
1.5 V
Measurement Level
1.5 V
Output
0.0 V
Figure 11.
42
Input Waveforms and Measurement Levels
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
AC CHARACTERISTICS
Read-Only Operations
Parameter
Speed Options
JEDEC
Std.
Description
tAVAV
tRC
Read Cycle Time (Note 1)
tAVQV
tACC
Address to Output Delay
tELQV
tCE
Chip Enable to Output Delay
tPACC
Test Setup
63
73
83
98
Unit
Min
65
70
85
90
ns
CE#, OE# = VIL
Max
65
70
85
90
ns
OE# = VIL
Max
65
70
85
90
ns
Page Access Time
Max
25
30
45
ns
tGLQV
tOE
Output Enable to Output Delay
Max
25
30
45
ns
tEHQZ
tDF
Chip Enable to Output High Z (Notes 1, 3)
Max
25
30
45
ns
tGHQZ
tDF
Output Enable to Output High Z (Notes 1, 3)
Max
25
30
45
ns
tAXQX
tOH
Output Hold Time From Addresses, CE# or
OE#, Whichever Occurs First
Min
4
tOEH
Output Enable Hold
Time (Note 1)
5
ns
Read
Min
0
ns
Toggle and
Data# Polling
Min
10
ns
Notes:
1. Not 100% tested.
2. See Figure 10 and Table 17 for test specifications
3. Measurements performed by placing a 50 ohm termination on the data pin with a bias of VCC/2. The time from OE# high to
the data bus driven to VCC/2 is taken as tDF.
.
tRC
Addresses Stable
Addresses
tACC
CE#f
tRH
tRH
tDF
tOE
OE#
tOEH
WE#
tCE
tOH
HIGH Z
HIGH Z
Valid Data
Data
RESET#
RY/BY#
0V
Figure 12.
February 26, 2003
Read Operation Timings
Am29PDL640G
43
P R E L I M I N A R Y
AC CHARACTERISTICS
Same Page
A21-A3
A2-A0
Aa
tACC
Data
Ab
tPACC
Qa
Ad
Ac
tPACC
Qb
tPACC
Qc
Qd
CE#
OE#
Figure 13.
44
Page Read Operation Timings
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
AC CHARACTERISTICS
Hardware Reset (RESET#)
Parameter
JEDEC
Std
Description
All Speed Options
Unit
tReady
RESET# Pin Low (During Embedded Algorithms)
to Read Mode (See Note)
Max
20
µs
tReady
RESET# Pin Low (NOT During Embedded
Algorithms) to Read Mode (See Note)
Max
500
ns
tRP
RESET# Pulse Width
Min
500
ns
tRH
Reset High Time Before Read (See Note)
Min
50
ns
tRPD
RESET# Low to Standby Mode
Min
20
µs
tRB
RY/BY# Recovery Time
Min
0
ns
Note: Not 100% tested.
RY/BY#
CE#, OE#
tRH
RESET#
tRP
tReady
Reset Timings NOT during Embedded Algorithms
Reset Timings during Embedded Algorithms
tReady
RY/BY#
tRB
CE#, OE#
RESET#
tRP
Figure 14. Reset Timings
February 26, 2003
Am29PDL640G
45
P R E L I M I N A R Y
AC CHARACTERISTICS
Erase and Program Operations
Parameter
Speed Options
JEDEC
Std
Description
tAVAV
tWC
Write Cycle Time (Note 1)
Min
tAVWL
tAS
Address Setup Time
Min
0
ns
tASO
Address Setup Time to OE# low during toggle bit
polling
Min
15
ns
tAH
Address Hold Time
Min
45
ns
tAHT
Address Hold Time From CE# or OE# high
during toggle bit polling
Min
0
ns
tDVWH
tDS
Data Setup Time
Min
35
ns
tWHDX
tDH
Data Hold Time
Min
0
ns
tOEPH
Output Enable High during toggle bit polling
Min
20
ns
tGHWL
tGHWL
Read Recovery Time Before Write
(OE# High to WE# Low)
Min
0
ns
tELWL
tCS
CE# Setup Time
Min
0
ns
tWHEH
tCH
CE# Hold Time
Min
0
ns
tWLWH
tWP
Write Pulse Width
Min
35
ns
tWHDL
tWPH
Write Pulse Width High
Min
30
ns
tSR/W
Latency Between Read and Write Operations
Min
0
ns
tWLAX
63
73
83
98
Unit
65
70
85
90
ns
tWHWH1
tWHWH1
Programming Operation (Note 2)
Typ
6
µs
tWHWH1
tWHWH1
Accelerated Programming Operation (Note 2)
Typ
4
µs
tWHWH2
tWHWH2
Sector Erase Operation (Note 2)
Typ
0.2
sec
tVCS
VCC Setup Time (Note 1)
Min
50
µs
tRB
Write Recovery Time from RY/BY#
Min
0
ns
Program/Erase Valid to RY/BY# Delay
Max
90
ns
tBUSY
Notes:
1. Not 100% tested.
2. See the “Erase And Programming Performance” section for more information.
46
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
AC CHARACTERISTICS
Program Command Sequence (last two cycles)
tAS
tWC
Addresses
Read Status Data (last two cycles)
555h
PA
PA
PA
tAH
CE#
tCH
OE#
tWHWH1
tWP
WE#
tWPH
tCS
tDS
tDH
PD
A0h
Data
Status
tBUSY
DOUT
tRB
RY/BY#
VCC
tVCS
Notes:
1. PA = program address, PD = program data, DOUT is the true data at the program address.
Figure 15.
Program Operation Timings
VHH
WP#/ACC
VIL or VIH
VIL or VIH
tVHH
Figure 16.
February 26, 2003
tVHH
Accelerated Program Timing Diagram
Am29PDL640G
47
P R E L I M I N A R Y
AC CHARACTERISTICS
Erase Command Sequence (last two cycles)
tAS
tWC
2AAh
Addresses
Read Status Data
VA
SA
VA
555h for chip erase
tAH
CE#
tCH
OE#
tWP
WE#
tWPH
tCS
tWHWH2
tDS
tDH
Data
55h
30h
Status
DOUT
10 for Chip Erase
tBUSY
tRB
RY/BY#
tVCS
VCC
Note: SA = sector address (for Sector Erase), VA = Valid Address for reading status data (see “Write Operation Status”
Figure 17.
48
Chip/Sector Erase Operation Timings
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
AC CHARACTERISTICS
Addresses
tWC
tWC
tRC
Valid PA
Valid RA
tWC
tAH
tAS
Valid PA
Valid PA
tAS
tCPH
tACC
tAH
tCE
CE#
tCP
tOE
OE#
tOEH
tGHWL
tWP
WE#
tDF
tWPH
tDS
tOH
tDH
Valid
Out
Valid
In
Data
Valid
In
Valid
In
tSR/W
WE# Controlled Write Cycle
Read Cycle
CE# Controlled Write Cycles
Figure 18. Back-to-back Read/Write Cycle Timings
tRC
Addresses
VA
VA
VA
tACC
tCE
CE#
tCH
tOE
OE#
tOEH
tDF
WE#
tOH
High Z
DQ7
Complement
Complement
DQ6–DQ0
Status Data
Status Data
True
Valid Data
High Z
True
Valid Data
tBUSY
RY/BY#
Note: VA = Valid address. Illustration shows first status cycle after command sequence, last status read cycle, and array data
read cycle.
Figure 19.
February 26, 2003
Data# Polling Timings (During Embedded Algorithms)
Am29PDL640G
49
P R E L I M I N A R Y
AC CHARACTERISTICS
tAHT
tAS
Addresses
tAHT
tASO
CE#
tCEPH
tOEH
WE#
tOEPH
OE#
tDH
DQ6/DQ2
tOE
Valid Data
Valid
Status
Valid
Status
Valid
Status
(first read)
(second read)
(stops toggling)
Valid Data
RY/BY#
Note: VA = Valid address; not required for DQ6. Illustration shows first two status cycle after command sequence, last status
read cycle, and array data read cycle
Figure 20.
Enter
Embedded
Erasing
WE#
Erase
Suspend
Erase
Toggle Bit Timings (During Embedded Algorithms)
Enter Erase
Suspend Program
Erase Suspend
Read
Erase
Suspend
Program
Erase
Resume
Erase Suspend
Read
Erase
Erase
Complete
DQ6
DQ2
Note: DQ2 toggles only when read at an address within an erase-suspended sector. The system may use OE# or CE# to toggle
DQ2 and DQ6.
Figure 21.
50
DQ2 vs. DQ6
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
AC CHARACTERISTICS
Temporary Sector Unprotect
Parameter
JEDEC
Std
Description
All Speed Options
Unit
tVIDR
VID Rise and Fall Time (See Note)
Min
500
ns
tVHH
VHH Rise and Fall Time (See Note)
Min
250
ns
tRSP
RESET# Setup Time for Temporary Sector
Unprotect
Min
4
µs
tRRB
RESET# Hold Time from RY/BY# High for
Temporary Sector Unprotect
Min
4
µs
Note: Not 100% tested.
VID
VID
RESET#
VIL or VIH
VIL or VIH
tVIDR
tVIDR
Program or Erase Command Sequence
CE#
WE#
tRRB
tRSP
RY/BY#
Figure 22. Temporary Sector Unprotect Timing Diagram
February 26, 2003
Am29PDL640G
51
P R E L I M I N A R Y
AC CHARACTERISTICS
VID
VIH
RESET#
SA, A6,
A1, A0
Valid*
Valid*
Sector Group Protect/Unprotect
Data
60h
60h
Valid*
Verify
40h
Status
1 µs
CE#
Sector Group Protect: 150 µs
Sector Group Unprotect: 15 ms
WE#
OE#
* For sector protect, A6 = 0, A1 = 1, A0 = 0. For sector unprotect, A6 = 1, A1 = 1, A0 = 0.
Figure 23. Sector/Sector Block Protect and
Unprotect Timing Diagram
52
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
AC CHARACTERISTICS
Alternate CE# Controlled Erase and Program Operations
Parameter
Speed Options
JEDEC
Std.
Description
63
73
83
98
Unit
tAVAV
tWC
Write Cycle Time (Note 1)
Min
65
70
85
90
ns
tAVWL
tAS
Address Setup Time
Min
0
ns
tELAX
tAH
Address Hold Time
Min
45
ns
tDVEH
tDS
Data Setup Time
Min
35
ns
tEHDX
tDH
Data Hold Time
Min
0
ns
tGHEL
tGHEL
Read Recovery Time Before Write
(OE# High to WE# Low)
Min
0
ns
tWLEL
tWS
WE# Setup Time
Min
0
ns
tEHWH
tWH
WE# Hold Time
Min
0
ns
tELEH
tCP
CE# Pulse Width
Min
35
ns
tEHEL
tCPH
CE# Pulse Width High
Min
30
ns
tWHWH1
tWHWH1
Programming Operation
(Note 2)
Typ
6
µs
tWHWH1
tWHWH1
Accelerated Programming Operation (Note 2)
Typ
4
µs
tWHWH2
tWHWH2
Sector Erase Operation (Note 2)
Typ
0.2
sec
Notes:
1. Not 100% tested.
2. See the “Erase And Programming Performance” section for more information.
February 26, 2003
Am29PDL640G
53
P R E L I M I N A R Y
AC CHARACTERISTICS
555 for program
2AA for erase
PA for program
SA for sector erase
555 for chip erase
Data# Polling
Addresses
PA
tWC
tAS
tAH
tWH
WE#
tGHEL
OE#
tWHWH1 or 2
tCP
CE#
tWS
tCPH
tBUSY
tDS
tDH
DQ7#
Data
tRH
A0 for program
55 for erase
DOUT
PD for program
30 for sector erase
10 for chip erase
RESET#
RY/BY#
Notes:
1. Figure indicates last two bus cycles of a program or erase operation.
2. PA = program address, SA = sector address, PD = program data.
3. DQ7# is the complement of the data written to the device. DOUT is the data written to the device.
4. Waveforms are for the word mode.
Figure 24. Alternate CE# Controlled Write (Erase/Program) Operation Timings
54
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
ERASE AND PROGRAMMING PERFORMANCE
Parameter
Typ (Note 1)
Max (Note 2)
Unit
Comments
Sector Erase Time
0.4
5
sec
Chip Erase Time
56
Excludes 00h programming
prior to erasure (Note 4)
Word Program Time
7
210
µs
Accelerated Word Program Time
4
120
µs
Chip Program Time (Note 3)
28
84
sec
sec
Excludes system level
overhead (Note 5)
Notes:
1. Typical program and erase times assume the following conditions: 25°C, 3.0 V VCC, 1,000,000 cycles. Additionally,
programming typicals assume checkerboard pattern.
2. Under worst case conditions of 90°C, VCC = 2.7 V, 1,000,000 cycles.
3. The typical chip programming time is considerably less than the maximum chip programming time listed, since most bytes
program faster than the maximum program times listed.
4. In the pre-programming step of the Embedded Erase algorithm, all bytes are programmed to 00h before erasure.
5. System-level overhead is the time required to execute the two- or four-bus-cycle sequence for the program command. See Tables
Table 14 for further information on command definitions.
6. The device has a minimum erase and program cycle endurance of 1,000,000 cycles.
LATCHUP CHARACTERISTICS
Description
Min
Max
Input voltage with respect to VSS on all pins except I/O pins
(including A9, OE#, and RESET#)
–1.0 V
13 V
Input voltage with respect to VSS on all I/O pins
–1.0 V
VCC + 1.0 V
–100 mA
+100 mA
VCC Current
Note: Includes all pins except VCC. Test conditions: VCC = 3.0 V, one pin at a time.
BGA BALL CAPACITANCE
Parameter
Symbol
Parameter Description
Test Setup
Typ
Max
Unit
CIN
Input Capacitance
VIN = 0
4.2
5.0
pF
COUT
Output Capacitance
VOUT = 0
5.4
6.5
pF
CIN2
Control Pin Capacitance
VIN = 0
3.9
4.7
pF
Notes:
1.
Sampled, not 100% tested.
2.
Test conditions TA = 25°C, f = 1.0 MHz.
DATA RETENTION
Parameter Description
Test Conditions
Min
Unit
150°C
10
Years
125°C
20
Years
Minimum Pattern Data Retention Time
February 26, 2003
Am29PDL640G
55
P R E L I M I N A R Y
PHYSICAL DIMENSIONS
FBE080—80-Ball Fine-pitch Ball Grid Array 12 x 11 mm package
0.20 (4X)
D1
A
D
eD
8
eE
7
6
7
SE
5
E
E1
4
3
2
1
M
K
J
H
G
F
E
D
C
B
A
A1 CORNER
7
B
A1 CORNER INDEX MARK 10
L
6 NXOb
SD
φ0.08 M Z
φ0.15 M Z A B
TOP VIEW
BOTTOM VIEW
0.25 Z
A2
A
A1
SEATING PLANE
Z
0.08 Z
SIDE VIEW
NOTES:
PACKAGE
1.
DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994.
2.
ALL DIMENSIONS ARE IN MILLIMETERS.
3.
BALL POSITION DESIGNATION PER JESD 95-1, SPP-010.
4.
e REPRESENTS THE SOLDER BALL GRID PITCH.
5.
SYMBOL "MD" IS THE BALL ROW MATRIX SIZE IN THE "D"
DIRECTION. SYMBOL "ME" IS THE BALL COLUMN MATRIX SIZE
IN THE "E" DIRECTION. N IS THE TOTAL NUMBER OF SOLDER
BALLS.
FBE 080
JEDEC
N/A
10.95 mm x 11.95 mm
PACKAGE
MIN. NOM. MAX.
SYMBOL
NOTE
A
---
---
1.20
OVERALL THICKNESS
A1
0.20
---
---
BALL HEIGHT
A2
0.84
---
0.94
BODY THICKNESS
D
11.95 BSC.
BODY SIZE
E
10.95 BSC.
8.80 BSC.
BODY SIZE
BALL FOOTPRINT
6
DIMENSION "b" IS MEASURED AT THE MAXIMUM BALL
DIAMETER IN A PLANE PARALLEL TO DATUM Z.
5.60 BSC.
12
BALL FOOTPRINT
ROW MATRIX SIZE D DIRECTION
7
ME
8
ROW MATRIX SIZE E DIRECTION
N
b
80
SD AND SE ARE MEASURED WITH RESPECT TO DATUMS A
AND B AND DEFINE THE POSITION OF THE CENTER SOLDER
BALL IN THE OUTER ROW. WHEN THERE IS AN ODD NUMBER
OF SOLDER BALLS IN THE OUTER ROW PARALLEL TO THE D
OR E DIMENSION, RESPECTIVELY, SD OR SE = 0.000.
D1
E1
MD
0.25
0.30
TOTAL BALL COUNT
0.35
BALL DIAMETER
WHEN THERE IS AN EVEN NUMBER OF SOLDER BALLS IN THE
OUTER ROW, SD OR SE = e/2
e
0.80 BSC.
BALL PITCH
SD / SE
0.40 BSC.
SOLDER BALL PLACEMENT
A3-A6, B3-B6,
L3-L6, M3-M6
DEPOPULATED SOLDER BALLS
8.
"+" IN THE PACKAGE DRAWING INDICATES THE THEORETICAL
CENTER OF DEPOPULATED BALLS.
E
PACKAGE OUTLINE TYPE
9
FOR PACKAGE THICKNESS, "A" IS THE CONTROLLING DIMENSION.
10 A1 CORNER TO BE IDENTIFIED BY CHAMFER, INK MARK,
METALLIZED MARKINGS INDENTION OR OTHER MEANS.
3150\38.9G
56
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
PHYSICAL DIMENSIONS
FBE063—63-Ball Fine-pitch Ball Grid Array 12 x 11 mm package
Dwg rev AF; 10/99
February 26, 2003
Am29PDL640G
57
P R E L I M I N A R Y
REVISION SUMMARY
July 12, 2002
Connection Diagram
Initial release.
Added Note.
Revision A+1 (July 29, 2002)
Removed the 64-ball Fortified BGA connection diagram.
Global
Ordering Information
Changed all references to DPB to DYB
Removed the Extended temperature range.
Table 7. Autoselect Codes (High Voltage Method)
Removed the PC package type.
Changed the A5 to A4 and A3 Sector Protection Verification fields from L to H.
Table 1. Am29PDL640G Device Bus Operations and
Standby Mode
Table 9. Sector Protection Schemes
Changed VCC± 0.3 V to VIO± 0.3 V.
Added field: Unprotected-PPB not changeable, DYB is
changeable.
Table 14. Memory Array Command Definitions
Deleted Configuration Register Verify and Write from
table.
Figure 1. In-System Sector Protection/Sector
Unprotection Algorithms
Deleted Note #15.
Added Note
Table 14. Memory Array Command Definitions (x32
Mode)
Table 15. Sector Protection Command Definitions
Changed All PPB Erase address from WP to EP.
Added SecSi Sector Factory Protect and Sector Group
Protect Verify fields to tables.
Added “EP = PPB Erase Address (A6:A0) is (1111010)
(Note 16)” to legend.
Added Notes 8 and 9
Added “the EP address is 01000010” to note #16.
Table 15. Sector Protection Command Definitions
(x32 mode)
Operating Ranges
Changed variables in Cycle field for Password Program (from 5 to 4), PPMLB Status (from 6 to 4), and
SPMLB Status (from 6 to 4).
DC Characteristics
Removed IACC parameter from CMOS Compatable table.
Changed specific references from ACC to WP#/ACC.
Removed the Extended temperature range.
CMOS Compatible
Changed VCC to VIO in ICC3 and ICC5 Test Conditions.
Changed Typical from 0.2 to 1 in ICC3, ICC4, and ICC5
Parameters.
Added Min and/or Max to VIL, VIH, VOL, and VOH.
Revision B (January 14, 2003)
FBGA Ball Capacitance
Changed table from TSOP Pin Capacitance to FBGA
Ball Capacitance and modified values within table to
reflect change.
Distinctive Characteristics, Product Selector
Guide, and Ordering Information
CFI
Customer Lockable: SecSi Sector NOT
Programmed or Protected at the factory.
Modified end of last paragraph to “reading array data”
Special Package Handling Instructions
Modified wording to include molded packages (TSOP,
BGA, PLCC, PDIP, SSOP).
Added 65 ns speed grade.
Added second bullet, SecSi sector-protect verify text
and figure 3.
Command Definitions
Modified last sentence of the first paragraph to state
that writing a wrong address will return the device to
an unknown state and that a reset command is required to return the device to reading array data.
Revision A+2 (September 30, 2002)
Distinctive Characteristics and General
Description
Removed the 64-ball Fortified BGA from Package options.
58
Am29PDL640G
February 26, 2003
P R E L I M I N A R Y
SecSi Sector Flash Memory Region, and Enter
SecSi Sector/Exit SecSi Sector Command
Sequence
Noted that the ACC function and unlock bypass modes
are not available when the SecSi sector is enabled.
Byte/Word Program Command Sequence, Sector
Erase Command Sequence, and Chip Erase Command Sequence
Noted that the SecSi Sector, autoselect, and CFI
functions are unavailable when a program or erase
operation is in progress.
Common Flash Memory Interface (CFI)
Changed CFI website address.
Test Conditions
Modified speed grade option rows to state “All
Speeds”.
Table 17. Test Specifications, Read-Only
Operations, and Erase and Programing Operations
Noted that one must write SecSi Sector reset before
PPB program/erase.
Table 15. Sector Protection Command Definitions
Added Note # 17 and 18.
Table 17. Test Specifications, Read-Only
Operations, and Erase and Programing Operations
Added 63 option to tables.
Revision B+1 (February 26, 2003)
Table 17. Test Specification
Updated output load capacitance.
Trademarks
Copyright © 2002 Advanced Micro Devices, Inc. All rights reserved.
AMD, the AMD logo, and combinations thereof are registered trademarks of Advanced Micro Devices, Inc.
ExpressFlash is a trademark of Advanced Micro Devices, Inc.
Product names used in this publication are for identification purposes only and may be trademarks of their respective companies.
February 26, 2003
Am29PDL640G
59
Representatives in U.S. and Canada
Sales Offices and Representatives
North America
ALABAMA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 5 6 ) 8 3 0 - 9 1 9 2
ARIZONA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 0 2 ) 24 2 - 4 4 0 0
CALIFORNIA,
Irvine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 4 9 ) 4 5 0 - 7 5 0 0
Sunnyvale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 0 8 ) 7 3 2 - 24 0 0
COLORADO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 3 0 3 ) 74 1 - 2 9 0 0
CONNECTICUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 0 3 ) 2 6 4 - 7 8 0 0
FLORIDA,
Clearwater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 2 7 ) 7 9 3 - 0 0 5 5
Miami (Lakes) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 3 0 5 ) 8 2 0 - 1 1 1 3
GEORGIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 7 0 ) 8 1 4 - 0 2 2 4
ILLINOIS,
Chicago . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 3 0 ) 7 7 3 - 4 4 2 2
MASSACHUSETTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 8 1 ) 2 1 3 - 6 4 0 0
MICHIGAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 4 8 ) 4 7 1 - 6 2 9 4
MINNESOTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 1 2 ) 74 5 - 0 0 0 5
NEW JERSEY,
Chatham . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 7 3 ) 7 0 1 - 1 7 7 7
NEW YORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 1 6 ) 4 2 5 - 8 0 5 0
NORTH CAROLINA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 1 9 ) 8 4 0 - 8 0 8 0
OREGON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 5 0 3 ) 24 5 - 0 0 8 0
PENNSYLVANIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 1 5 ) 3 4 0 - 1 1 8 7
SOUTH DAKOTA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 6 0 5 ) 69 2 - 5 7 7 7
TEXAS,
Austin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 5 1 2 ) 3 4 6 - 7 8 3 0
Dallas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 7 2 ) 9 8 5 - 1 3 4 4
Houston . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 2 8 1 ) 3 76 - 8 0 8 4
VIRGINIA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 0 3 ) 7 3 6 - 9 5 6 8
International
AUSTRALIA, North Ryde . . . . . . . . . . . . . . . . . . . . . . . T E L ( 6 1 ) 2 - 8 8 - 7 7 7 - 2 2 2
BELGIUM, Antwerpen . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 2 ) 3 - 2 4 8 - 4 3 - 0 0
BRAZIL, San Paulo . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 5 5 ) 1 1 - 5 5 0 1 - 2 1 0 5
CHINA,
Beijing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 6 ) 1 0 - 6 5 1 0 - 2 1 8 8
Shanghai . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 6 ) 2 1 - 6 3 5 - 0 0 8 3 8
Shenzhen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 6 ) 7 5 5 - 24 6 - 1 5 5 0
FINLAND, Helsinki . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 5 8 ) 8 8 1 - 3 1 1 7
FRANCE, Paris . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 3 ) - 1 - 4 9 7 5 1 0 1 0
GERMANY,
Bad Homburg . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 9 ) - 6 1 7 2 - 9 2 6 7 0
Munich . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 9 ) - 8 9 - 4 5 0 5 3 0
HONG KONG, Causeway Bay . . . . . . . . . . . . . . . . . . . T E L ( 8 5 ) 2 - 2 9 5 6 - 0 3 8 8
ITALY, Milan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 3 9 ) - 0 2 - 3 8 1 9 6 1
INDIA, New Delhi . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 9 1 ) 1 1 - 6 2 3 - 8 6 2 0
JAPAN,
Osaka . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 1 ) 6 - 6 2 4 3 - 3 2 5 0
Tokyo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 1 ) 3 - 3 3 4 6 - 7 6 0 0
KOREA, Seoul . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 2 ) 2 - 3 4 6 8 - 2 6 0 0
RUSSIA, Moscow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TEL(7)-095-795-06-22
SWEDEN, Stockholm . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 6 ) 8 - 5 62 - 5 4 0 - 0 0
TAIWAN,Taipei . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 8 8 6 ) 2 - 8 7 7 3 - 1 5 5 5
UNITED KINGDOM,
Frimley . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 4 ) 1 2 7 6 - 8 0 3 1 0 0
Haydcock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T E L ( 4 4 ) 1 9 4 2 - 2 7 2 8 8 8
Advanced Micro Devices reserves the right to make changes in its product without notice
in order to improve design or performance characteristics.The performance
characteristics listed in this document are guaranteed by specific tests, guard banding,
design and other practices common to the industry. For specific testing details, contact
your local AMD sales representative.The company assumes no responsibility for the use of
any circuits described herein.
© Advanced Micro Devices, Inc. All rights reserved.
AMD, the AMD Arrow logo and combination thereof, are trademarks of
Advanced Micro Devices, Inc. Other product names are for informational purposes only
and may be trademarks of their respective companies.
es
ARIZONA,
Tempe - Centaur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 8 0 ) 8 3 9 - 2 3 2 0
CALIFORNIA,
Calabasas - Centaur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 1 8 ) 8 7 8 - 5 8 0 0
Irvine - Centaur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 4 9 ) 2 6 1 - 2 1 2 3
San Diego - Centaur. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 5 8 ) 2 7 8 - 4 9 5 0
Santa Clara - Fourfront. . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 0 8 ) 3 5 0 - 4 8 0 0
CANADA,
Burnaby, B.C. - Davetek Marketing. . . . . . . . . . . . . . . . . . . . ( 6 0 4 ) 4 3 0 - 3 6 8 0
Calgary, Alberta - Davetek Marketing. . . . . . . . . . . . . . . . . ( 4 0 3 ) 2 8 3 - 3 5 7 7
Kanata, Ontario - J-Squared Tech. . . . . . . . . . . . . . . . . . . . ( 6 1 3 ) 5 9 2 - 9 5 4 0
Mississauga, Ontario - J-Squared Tech. . . . . . . . . . . . . . . . . . ( 9 0 5 ) 6 7 2 - 2 0 3 0
St Laurent, Quebec - J-Squared Tech. . . . . . . . . . . . . . . . ( 5 1 4 ) 7 4 7 - 1 2 1 1
COLORADO,
Golden - Compass Marketing . . . . . . . . . . . . . . . . . . . . . . ( 3 0 3 ) 2 7 7 - 0 4 5 6
FLORIDA,
Melbourne - Marathon Technical Sales . . . . . . . . . . . . . . . . ( 3 2 1 ) 7 2 8 - 7 7 0 6
Ft. Lauderdale - Marathon Technical Sales . . . . . . . . . . . . . . ( 9 5 4 ) 5 2 7 - 4 9 4 9
Orlando - Marathon Technical Sales . . . . . . . . . . . . . . . . . . ( 4 0 7 ) 8 7 2 - 5 7 7 5
St. Petersburg - Marathon Technical Sales . . . . . . . . . . . . . . ( 7 2 7 ) 8 9 4 - 3 6 0 3
GEORGIA,
Duluth - Quantum Marketing . . . . . . . . . . . . . . . . . . . . . ( 6 7 8 ) 5 8 4 - 1 1 2 8
ILLINOIS,
Skokie - Industrial Reps, Inc. . . . . . . . . . . . . . . . . . . . . . . . . ( 8 4 7 ) 9 6 7 - 8 4 3 0
INDIANA,
Kokomo - SAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 6 5 ) 4 5 7 - 7 2 4 1
IOWA,
Cedar Rapids - Lorenz Sales . . . . . . . . . . . . . . . . . . . . . . ( 3 1 9 ) 2 9 4 - 1 0 0 0
KANSAS,
Lenexa - Lorenz Sales . . . . . . . . . . . . . . . . . . . . . . . . . ( 9 1 3 ) 4 6 9 - 1 3 1 2
MASSACHUSETTS,
Burlington - Synergy Associates . . . . . . . . . . . . . . . . . . . . . ( 7 8 1 ) 2 3 8 - 0 8 7 0
MICHIGAN,
Brighton - SAI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 1 0 ) 2 2 7 - 0 0 0 7
MINNESOTA,
St. Paul - Cahill, Schmitz & Cahill, Inc. . . . . . . . . . . . . . . . . . ( 6 5 1 ) 69 9 - 0 2 0 0
MISSOURI,
St. Louis - Lorenz Sales . . . . . . . . . . . . . . . . . . . . . . . . . . ( 3 1 4 ) 9 9 7 - 4 5 5 8
NEW JERSEY,
Mt. Laurel - SJ Associates . . . . . . . . . . . . . . . . . . . . . . . . . ( 8 5 6 ) 8 6 6 - 1 2 3 4
NEW YORK,
Buffalo - Nycom, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 1 6 ) 7 4 1 - 7 1 1 6
East Syracuse - Nycom, Inc. . . . . . . . . . . . . . . . . . . . . . . ( 3 1 5 ) 4 3 7 - 8 3 4 3
Pittsford - Nycom, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 1 6 ) 5 8 6 - 3 6 6 0
Rockville Centre - SJ Associates . . . . . . . . . . . . . . . . . . . . ( 5 1 6 ) 5 3 6 - 4 2 4 2
NORTH CAROLINA,
Raleigh - Quantum Marketing . . . . . . . . . . . . . . . . . . . . . . ( 9 1 9 ) 8 4 6 - 5 7 2 8
OHIO,
Middleburg Hts - Dolfuss Root & Co. . . . . . . . . . . . . . . . . ( 4 4 0 ) 8 1 6 - 1 6 6 0
Powell - Dolfuss Root & Co. . . . . . . . . . . . . . . . . . . . . . . ( 6 1 4 ) 7 8 1 - 0 7 2 5
Vandalia - Dolfuss Root & Co. . . . . . . . . . . . . . . . . . . . . . ( 9 3 7 ) 8 9 8 - 9 6 1 0
Westerville - Dolfuss Root & Co. . . . . . . . . . . . . . . . . . . ( 6 1 4 ) 5 2 3 - 1 9 9 0
OREGON,
Lake Oswego - I Squared, Inc. . . . . . . . . . . . . . . . . . . . . . . ( 5 0 3 ) 6 7 0 - 0 5 5 7
UTAH,
Murray - Front Range Marketing . . . . . . . . . . . . . . . . . . . . ( 8 0 1 ) 2 8 8 - 2 5 0 0
VIRGINIA,
Glen Burnie - Coherent Solution, Inc. . . . . . . . . . . . . . . . . ( 4 1 0 ) 7 6 1 - 2 2 5 5
WASHINGTON,
Kirkland - I Squared, Inc. . . . . . . . . . . . . . . . . . . . . . . . . . . ( 4 2 5 ) 8 2 2 - 9 2 2 0
WISCONSIN,
Pewaukee - Industrial Representatives . . . . . . . . . . . . . . . . ( 2 6 2 ) 5 74 - 9 3 9 3
Representatives in Latin America
ARGENTINA,
Capital Federal Argentina/WW Rep. . . . . . . . . . . . . . . . . . . .54-11)4373-0655
CHILE,
Santiago - LatinRep/WWRep. . . . . . . . . . . . . . . . . . . . . . . . . .(+562)264-0993
COLUMBIA,
Bogota - Dimser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 5 7 1 ) 4 1 0 - 4 1 8 2
MEXICO,
Guadalajara - LatinRep/WW Rep. . . . . . . . . . . . . . . . . . . . ( 5 2 3 ) 8 1 7 - 3 9 0 0
Mexico City - LatinRep/WW Rep. . . . . . . . . . . . . . . . . . . . ( 5 2 5 ) 7 5 2 - 2 7 2 7
Monterrey - LatinRep/WW Rep. . . . . . . . . . . . . . . . . . . . . ( 5 2 8 ) 3 69 - 6 8 2 8
PUERTO RICO,
Boqueron - Infitronics. . . . . . . . . . . . . . . . . . . . . . . . . . . . ( 7 8 7 ) 8 5 1 - 6 0 0 0
One AMD Place, P.O. Box 3453, Sunnyvale, CA 94088-3453 408-732-2400
TWX 910-339-9280 TELEX 34-6306 800-538-8450 http://www.amd.com
©2003 Advanced Micro Devices, Inc.
01/03
Printed in USA
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