INTEL E28F128J3A-150

3 Volt Intel® StrataFlash™ Memory
28F128J3A, 28F640J3A, 28F320J3A (x8/x16)
Preliminary Datasheet
Product Features
■
■
■
■
■
High-Density Symmetrically-Blocked
Architecture
— 128 128-Kbyte Erase Blocks (128 M)
— 64 128-Kbyte Erase Blocks (64 M)
— 32 128-Kbyte Erase Blocks (32 M)
High Performance Interface Asynchronous
Page Mode Reads
— 110/25 ns Read Access Time (32 M)
— 120/25 ns Read Access Time (64 M)
— 150/25 ns Read Access Time (128 M)
2.7 V–3.6 V VCC Operation
128-bit Protection Register
— 64-bit Unique Device Identifier
— 64-bit User Programmable OTP Cells
Enhanced Data Protection Features
Absolute Protection with VPEN = GND
— Flexible Block Locking
— Block Erase/Program Lockout during
Power Transitions
■
■
■
■
■
■
Packaging
— 56-Lead TSOP Package
— 64-Ball Intel® Easy BGA Package
Cross-Compatible Command Support Intel
Basic Command Set
— Common Flash Interface
— Scalable Command Set
32-Byte Write Buffer
— 6 µs per Byte Effective Programming
Time
12.8M Total Min. Erase Cycles (128 Mbit)
6.4M Total Min. Erase Cycles (64 Mbit)
3.2M Total Min. Erase Cycles (32 Mbit)
— 100K Minimum Erase Cycles per Block
Automation Suspend Options
— Block Erase Suspend to Read
— Block Erase Suspend to Program
— Program Suspend to Read
0.25 µ Intel® StrataFlash™ Memory
Technology
Capitalizing on Intel’s 0.25 µ generation two-bit-per-cell technology, second generation Intel®
StrataFlash™ memory products provide 2X the bits in 1X the space, with new features for mainstream
performance. Offered in 128-Mbit (16-Mbyte), 64-Mbit, and 32-Mbit densities, these devices bring
reliable, two-bit-per-cell storage technology to the flash market segment.
Benefits include: more density in less space, high-speed interface, lowest cost-per-bit NOR devices,
support for code and data storage, and easy migration to future devices.
Using the same NOR-based ETOX™ technology as Intel’s one-bit-per-cell products, Intel StrataFlash
memory devices take advantage of over one billion units of manufacturing experience since 1987. As a
result, Intel StrataFlash components are ideal for code and data applications where high density and low
cost are required. Examples include networking, telecommunications, digital set top boxes, audio
recording, and digital imaging.
By applying FlashFile™ memory family pinouts, Intel StrataFlash memory components allow easy design
migrations from existing Word-Wide FlashFile memory (28F160S3 and 28F320S3), and first generation
Intel StrataFlash memory (28F640J5 and 28F320J5) devices.
Intel StrataFlash memory components deliver a new generation of forward-compatible software support.
By using the Common Flash Interface (CFI) and the Scalable Command Set (SCS), customers can take
advantage of density upgrades and optimized write capabilities of future Intel StrataFlash memory devices.
Manufactured on Intel® 0.25 micron ETOX™ VI process technology, Intel StrataFlash memory provides
the highest levels of quality and reliability.
Notice: This document contains preliminary information on new products in production. The
specifications are subject to change without notice. Verify with your local Intel sales office that
you have the latest datasheet before finalizing a design.
Order Number: 290667-008
April 2001
Information in this document is provided in connection with Intel® products. No license, express or implied, by estoppel or otherwise, to any
intellectual property rights is granted by this document. Except as provided in Intel's Terms and Conditions of Sale for such products, Intel assumes no
liability whatsoever, and Intel disclaims any express or implied warranty, relating to sale and/or use of Intel products including liability or warranties
relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right. Intel products are
not intended for use in medical, life saving, or life sustaining applications.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked "reserved" or "undefined." Intel reserves these for
future definition and shall have no responsibility whatsoever for conflicts or incompatibilities arising from future changes to them.
The 28F128J3A, 28F640J3A, 28F320J3A may contain design defects or errors known as errata which may cause the product to deviate from
published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications and before placing your product order.
Copies of documents which have an ordering number and are referenced in this document, or other Intel literature may be obtained by calling 1-800548-4725 or by visiting Intel's website at http://www.intel.com.
Copyright © Intel Corporation, 1999–2001
*Other names and brands may be claimed as the property of others.
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Contents
1.0
Product Overview ....................................................................................................... 1
2.0
Principles of Operation ............................................................................................ 6
2.1
3.0
Bus Operations ........................................................................................................... 7
3.1
3.2
3.3
3.4
3.5
3.6
3.7
4.0
4.3
4.4
4.5
4.6
4.7
4.8
4.9
4.10
4.11
4.12
4.13
4.14
4.15
Read Array Command.........................................................................................13
Read Query Mode Command .............................................................................13
4.2.1 Query Structure Output ..........................................................................13
4.2.2 Query Structure Overview ......................................................................14
4.2.3 Block Status Register .............................................................................15
4.2.4 CFI Query Identification String ...............................................................15
4.2.5 System Interface Information .................................................................16
4.2.6 Device Geometry Definition....................................................................17
4.2.7 Primary-Vendor Specific Extended Query Table....................................18
Read Identifier Codes Command ........................................................................19
Read Status Register Command.........................................................................20
Clear Status Register Command.........................................................................22
Block Erase Command........................................................................................22
Block Erase Suspend Command ........................................................................22
Write to Buffer Command....................................................................................23
Byte/Word Program Commands .........................................................................24
Program Suspend Command..............................................................................24
Set Read Configuration Command .....................................................................24
4.11.1 Read Configuration ................................................................................25
Configuration Command .....................................................................................25
Set Block Lock-Bit Commands............................................................................26
Clear Block Lock-Bits Command.........................................................................27
Protection Register Program Command .............................................................27
4.15.1 Reading the Protection Register ............................................................27
4.15.2 Programming the Protection Register ....................................................27
4.15.3 Locking the Protection Register .............................................................28
Design Considerations ..........................................................................................38
5.1
5.2
5.3
5.4
Preliminary
Read...................................................................................................................... 8
Output Disable....................................................................................................... 8
Standby ................................................................................................................. 8
Reset/Power-Down ............................................................................................... 8
Read Query ........................................................................................................... 9
Read Identifier Codes............................................................................................ 9
Write ...................................................................................................................... 9
Command Definitions ............................................................................................... 9
4.1
4.2
5.0
Data Protection...................................................................................................... 6
Three-Line Output Control...................................................................................38
STS and Block Erase, Program, and Lock-Bit Configuration Polling ..................38
Power Supply Decoupling ...................................................................................38
Input Signal Transitions - Reducing Overshoots and Undershoots When Using
iii
28F128J3A, 28F640J3A, 28F320J3A
5.5
5.6
5.7
6.0
Buffers or Transceivers39
VCC, VPEN, RP# Transitions ............................................................................. 39
Power-Up/Down Protection................................................................................. 39
Power Dissipation ............................................................................................... 40
Electrical Specifications........................................................................................ 40
6.1
6.2
6.3
6.4
6.5
6.6
6.7
Absolute Maximum Ratings ................................................................................ 40
Operating Conditions .......................................................................................... 41
Capacitance ........................................................................................................ 41
DC Characteristics .............................................................................................. 42
AC Characteristics— Read-Only Operations(1,2)................................................. 45
AC Characteristics— Write Operations(1,2) ......................................................... 47
Block Erase, Program, and Lock-Bit Configuration Performance(1,2,3) ............... 48
7.0
Ordering Information .............................................................................................. 51
8.0
Additional Information ........................................................................................... 52
iv
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Revision History
Preliminary
Date of Revision
Version
Description
07/07/99
-001
Original Version
08/03/99
-002
A0–A2 indicated on block diagram
09/07/99
-003
Changed Minimum Block Erase time,IOL, IOH, Page Mode and Byte
Mode currents. Modified RP# on AC Waveform for Write Operations
12/16/99
-004
Changed Block Erase time and tAVWH
Removed all references to 5 V I/O operation
Corrected Ordering Information, Valid Combinations entries
Changed Min program time to 211 µs
Added DU to Lead Descriptions table
Changed Chip Scale Package to Ball Grid Array Package
Changed default read mode to page mode
Removed erase queuing from Figure 10, Block Erase Flowchart
03/16/00
-005
Added Program Max time
Added Erase Max time
Added Max page mode read current
Moved tables to correspond with sections
Fixed typographical errors in ordering information and DC parameter
table
Removed VCCQ1 setting and changed VCCQ2/3 to VCCQ1/2
Added recommended resister value for STS pin
Change operation temperature range
Removed note that rp# could go to 14 V
Removed VOL of 0.45 V
Removed VOH of 2.4 V
Updated ICCR Typ values
Added Max lock-bit program and lock times
Added note on max measurements
06/26/00
-006
Updated cover sheet statement of 700 million units to one billion.
Corrected Table 10 to show correct maximum program times.
Corrected error in Max block program time in section 6.7
Corrected typical erase time in section 6.7
2/15/01
-007
Updated cover page to reflect 100K minimum erase cycles.
Updated cover page to reflect 110 ns 32M read speed.
Removed Set Read Configuration command from Table 4.
Updated Table 8 to reflect reserved bits are 1-7; not 2-7.
Updated Table 16 bit 2 definition from R to PSS.
Changed VPENLK Max voltage from 0.8 V to 2.0 V, Section 6.4, DC
Characteristics
Updated 32Mbit Read Parameters R1, R2 and R3 to reflect 110ns, Section 6.5, AC Characteristics–Read-Only Operations (1,2)
Updated write parameter W13 (tWHRL) from 90 ns to 500 ns, Section
6.6, AC Characteristics–Write Operations
Updated Max. Program Suspend Latency W16 (tWHRH1) from 30 to 75
µs, Section 6.7, Block Erase, Program, and Lock-Bit Configuration Performance (1,2,3)
04/13/01
-008
Revised Section 7.0, Ordering Information
v
28F128J3A, 28F640J3A, 28F320J3A
1.0
Product Overview
The 0.25 µ 3 Volt Intel StrataFlash memory family contains high-density memories organized as
16 Mbytes or 8 Mwords (128-Mbit), 8 Mbytes or 4 Mwords (64-Mbit), and 4 Mbytes or 2 Mwords
(32-Mbit). These devices can be accessed as 8- or 16-bit words. The 128-Mbit device is organized
as one-hundred-twenty-eight 128-Kbyte (131,072 bytes) erase blocks. The 64-Mbit device is
organized as sixty-four 128-Kbyte erase blocks while the 32-Mbits device contains thirty-two
128-Kbyte erase blocks. Blocks are selectively and individually lockable and unlockable insystem. A 128-bit protection register has multiple uses, including unique flash device
identification.
The device’s optimized architecture and interface dramatically increases read performance by
supporting page-mode reads. This read mode is ideal for non-clock memory systems.
A Common Flash Interface (CFI) permits software algorithms to be used for entire families of
devices. This allows device-independent, JEDEC ID-independent, and forward- and backwardcompatible software support for the specified flash device families. Flash vendors can standardize
their existing interfaces for long-term compatibility.
Scalable Command Set (SCS) allows a single, simple software driver in all host systems to work
with all SCS-compliant flash memory devices, independent of system-level packaging (e.g.,
memory card, SIMM, or direct-to-board placement). Additionally, SCS provides the highest
system/device data transfer rates and minimizes device and system-level implementation costs.
A Command User Interface (CUI) serves as the interface between the system processor and
internal operation of the device. A valid command sequence written to the CUI initiates device
automation. An internal Write State Machine (WSM) automatically executes the algorithms and
timings necessary for block erase, program, and lock-bit configuration operations.
A block erase operation erases one of the device’s 128-Kbyte blocks typically within one second—
independent of other blocks. Each block can be independently erased 100,000 times. Block erase
suspend mode allows system software to suspend block erase to read or program data from any
other block. Similarly, program suspend allows system software to suspend programming (byte/
word program and write-to-buffer operations) to read data or execute code from any other block
that is not being suspended.
Each device incorporates a Write Buffer of 32 bytes (16 words) to allow optimum programming
performance. By using the Write Buffer, data is programmed in buffer increments. This feature can
improve system program performance more than 20 times over non-Write Buffer writes.
Individual block locking uses block lock-bits to lock and unlock blocks. Block lock-bits gate block
erase and program operations. Lock-bit configuration operations set and clear lock-bits (Set Block
Lock-Bit and Clear Block Lock-Bits commands).
The status register indicates when the WSM’s block erase, program, or lock-bit configuration
operation is finished.
The STS (STATUS) output gives an additional indicator of WSM activity by providing both a
hardware signal of status (versus software polling) and status masking (interrupt masking for
background block erase, for example). Status indication using STS minimizes both CPU overhead
and system power consumption. When configured in level mode (default mode), it acts as a RY/
BY# pin. When low, STS indicates that the WSM is performing a block erase, program, or lock-bit
configuration. STS-high indicates that the WSM is ready for a new command, block erase is
Preliminary
1
28F128J3A, 28F640J3A, 28F320J3A
suspended (and programming is inactive), program is suspended, or the device is in reset/powerdown mode. Additionally, the configuration command allows the STS pin to be configured to pulse
on completion of programming and/or block erases.
Three CE pins are used to enable and disable the device. A unique CE logic design (see Table 2,
“Chip Enable Truth Table” on page 7) reduces decoder logic typically required for multi-chip
designs. External logic is not required when designing a single chip, a dual chip, or a 4-chip
miniature card or SIMM module.
The BYTE# pin allows either x8 or x16 read/writes to the device. BYTE# at logic low selects 8-bit
mode; address A0 selects between the low byte and high byte. BYTE# at logic high enables 16-bit
operation; address A1 becomes the lowest order address and address A0 is not used (don’t care). A
device block diagram is shown in Figure 1 on page 2.
When the device is disabled (see Table 2 on page 7) and the RP# pin is at VCC, the standby mode is
enabled. When the RP# pin is at GND, a further power-down mode is enabled which minimizes
power consumption and provides write protection during reset. A reset time (tPHQV) is required
from RP# switching high until outputs are valid. Likewise, the device has a wake time (tPHWL)
from RP#-high until writes to the CUI are recognized. With RP# at GND, the WSM is reset and the
status register is cleared.
3 Volt Intel StrataFlash memory devices are available in two package types. Both 56-lead TSOP
(Thin Small Outline Package) and BGA (Ball Grid Array Package) support all offered densities.
Figure 2 and Figure 3 show the pinouts.
Figure 1. 3 Volt Intel® StrataFlash™ Memory Block Diagram
DQ0 - DQ15
Output
Buffer
VCCQ
Input Buffer
CE
Logic
CE0
CE1
CE2
WE#
OE#
RP#
Data
Comparator
Y-Decoder
Y-Gating
X-Decoder
32-Mbit: Thirty-two
64-Mbit: Sixty-four
128-Mbit: One-hundred
twenty-eight
Input Buffer
Address
Latch
Write Buffer
Status
Register
Command
User
Interface
Multiplexer
A0- A 2
32-Mbit: A 0- A 21
64-Mbit: A 0 - A22
128-Mbit: A 0 - A23
Identifier
Register
VCC
BYTE#
I/O Logic
Data
Register
Output
Latch/Multiplexer
Query
STS
Write State
Machine
Program/Erase
Voltage Switch
VPEN
VCC
GND
Address
Counter
2
128-Kbyte Blocks
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Table 1.
Symbol
A0
A1–A23
Lead Descriptions
Type
Name and Function
INPUT
BYTE-SELECT ADDRESS: Selects between high and low byte when the device is in x8 mode. This
address is latched during a x8 program cycle. Not used in x16 mode (i.e., the A0 input buffer is turned
off when BYTE# is high).
INPUT
ADDRESS INPUTS: Inputs for addresses during read and program operations. Addresses are
internally latched during a program cycle.
32-Mbit: A0–A21
64-Mbit: A0–A22
128-Mbit: A0–A23
DQ0–DQ7
INPUT/
OUTPUT
LOW-BYTE DATA BUS: Inputs data during buffer writes and programming, and inputs commands
during Command User Interface (CUI) writes. Outputs array, query, identifier, or status data in the
appropriate read mode. Floated when the chip is de-selected or the outputs are disabled. Outputs
DQ6–DQ0 are also floated when the Write State Machine (WSM) is busy. Check SR.7 (status register
bit 7) to determine WSM status.
DQ8–
DQ15
INPUT/
OUTPUT
HIGH-BYTE DATA BUS: Inputs data during x16 buffer writes and programming operations. Outputs
array, query, or identifier data in the appropriate read mode; not used for status register reads. Floated
when the chip is de-selected, the outputs are disabled, or the WSM is busy.
CHIP ENABLES: Activates the device’s control logic, input buffers, decoders, and sense amplifiers.
When the device is de-selected (see Table 2 on page 7), power reduces to standby levels.
CE0,
CE1,
CE2
INPUT
RP#
INPUT
RESET/ POWER-DOWN: Resets internal automation and puts the device in power-down mode. RP#high enables normal operation. Exit from reset sets the device to read array mode. When driven low,
RP# inhibits write operations which provides data protection during power transitions.
OE#
INPUT
OUTPUT ENABLE: Activates the device’s outputs through the data buffers during a read cycle. OE# is
active low.
WE#
INPUT
WRITE ENABLE: Controls writes to the Command User Interface, the Write Buffer, and array blocks.
WE# is active low. Addresses and data are latched on the rising edge of the WE# pulse.
STS
OPEN
DRAIN
OUTPUT
STATUS: Indicates the status of the internal state machine. When configured in level mode (default
mode), it acts as a RY/BY# pin. When configured in one of its pulse modes, it can pulse to indicate
program and/or erase completion. For alternate configurations of the STATUS pin, see the
Configurations command. Tie STS to VCCQ with a pull-up resistor.
BYTE#
INPUT
BYTE ENABLE: BYTE# low places the device in x8 mode. All data is then input or output on DQ0–
DQ7, while DQ8–DQ15 float. Address A0 selects between the high and low byte. BYTE# high places
the device in x16 mode, and turns off the A0 input buffer. Address A1 then becomes the lowest order
address.
VPEN
INPUT
VCC
SUPPLY
DEVICE POWER SUPPLY: With VCC ≤ VLKO, all write attempts to the flash memory are inhibited.
VCCQ
OUTPUT
BUFFER
SUPPLY
OUTPUT BUFFER POWER SUPPLY: This voltage controls the device’s output voltages. To obtain
output voltages compatible with system data bus voltages, connect VCCQ to the system supply voltage.
GND
SUPPLY
GROUND: Do not float any ground pins.
All timing specifications are the same for these three signals. Device selection occurs with the first
edge of CE0, CE1, or CE2 that enables the device. Device deselection occurs with the first edge of
CE0, CE1, or CE2 that disables the device (see Table 2 on page 7).
ERASE / PROGRAM / BLOCK LOCK ENABLE: For erasing array blocks, programming data, or
configuring lock-bits.
With VPEN ≤ VPENLK, memory contents cannot be altered.
NC
NO CONNECT: Lead is not internally connected; it may be driven or floated.
DU
DON’T USE: Do not drive ball to VIH or VIL, leave disconnected
Preliminary
3
28F128J3A, 28F640J3A, 28F320J3A
Figure 2. 3 Volt Intel® StrataFlash™ Memory Easy BGA Package
1
2
3
4
5
6
7
8
A
8
7
6
5
4
3
2
1
A22(1)
A18
VCC
A13
VPEN
A8
A6
A1
CE1#
A19
DU
A14
CE0#
A9
GND
A2
A21
A20
DU
A15
A12
A10
A7
A3
A17
A16
DU
DU
RP#
A11
A5
A4
STS DQ15
DU
DQ4
DQ3
DQ9
DQ1
DQ8
OE#
DU
DQ12 DQ11 DQ10 DQ0 BYTE#
A
A1
A6
A8
VPEN
A13
VCC
A18
A22(1)
B
B
A2
GND
A9
CE0#
A14
DU
A19
CE1#
C
C
A3
A7
A10
A12
A15
DU
A20
A21
D
D
A4
A5
A11
RP#
DU
DU
DQ8
DQ1
DQ9
DQ3
DQ4
DU
A16
A17
E
E
F
BYTE# DQ0 DQ10 DQ11 DQ12
DQ15 STS
F
DU
DU
OE#
G
DU
G
A23(2)
A0
DQ2 VCCQ DQ5
DQ5 VCCQ DQ2
A0
A23(2)
A24(3) DQ7 GND DQ13 GND VCC
DU
CE2#
WE# DQ14 DQ6
DQ6 DQ14 WE#
H
H
CE2#
DU
VCC GND DQ13 GND DQ7 A24(3)
Top View - Ball Side Down
Bottom View - Ball Side Up
32 Mbit, 64 Mbit and 128 Mbit: 10 x 13 x 1.2 mm
1.0 mm-ball pitch
0667-02
NOTES:
1. Address A22 is only valid on 64-Mbit densities and above, otherwise, it is a no connect (NC)
2. Address A23 is only valid on 128-Mbit densities and above, otherwise, it is a no connect (NC)
3. Address A24 is only valid on 256-Mbit densities and above, otherwise, it is a no connect (NC)
4. Don’t Use (DU) pins refer to pins that should not be connected
4
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Figure 3. 3 Volt Intel® StrataFlash™ Memory 56-Lead TSOP (32/64/128 Mbit) Offers an Easy
Migration from the 32-Mbit Intel StrataFlash Component (28F320J5) or the 16-Mbit
FlashFile™ Component (28F160S3)
28F160S3
28F320J5
NC
CE1
NC
A20
A19
A18
A17
A16
VCC
A15
A14
A13
A12
CE0
VPP
RP#
A11
A10
A9
A8
GND
A7
A6
A5
A4
A3
A2
A1
NC
CE1
A21
A20
A19
A18
A17
A16
VCC(4)
A15
A14
A13
A12
CE0
VPEN
RP#
A11
A10
A9
A8
GND
A7
A6
A5
A4
A3
A2
A1
3 Volt Intel
StrataFlash
Memory
32/64/128M
A22(1)
CE1
A21
A20
A19
A18
A17
A16
VCC
A15
A14
A13
A12
CE0
VPEN
RP#
A11
A10
A9
A8
GND
A7
A6
A5
A4
A3
A2
A1
3 Volt Intel
StrataFlash
Memory
32/64/128M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
Intel® StrataFlash™ Memory
56-Lead TSOP
Standard Pinout
14 mm x 20 mm
Top View
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
A24(3)
WE#
OE#
STS
DQ15
DQ7
DQ14
DQ6
GND
DQ13
DQ5
DQ12
DQ4
VCCQ
GND
DQ11
DQ3
DQ10
DQ2
VCC
DQ9
DQ1
DQ8
DQ0
A0
BYTE#
A23(2)
CE2
28F320J5
28F160S3
NC
WE#
OE#
STS
DQ15
DQ7
DQ14
DQ6
GND
DQ13
DQ5
DQ12
DQ4
VCCQ
GND
DQ11
DQ3
DQ10
DQ2
VCC(4)
DQ9
DQ1
DQ8
DQ0
A0
BYTE#
NC
CE2
WP#
WE#
OE#
STS
DQ15
DQ7
DQ14
DQ6
GND
DQ13
DQ5
DQ12
DQ4
VCC
GND
DQ11
DQ3
DQ10
DQ2
VCC
DQ9
DQ1
DQ8
DQ0
A0
BYTE#
NC
NC
Highlights pinout changes
0667-03
NOTES:
1. A22 exists on 64-, 128- and 256-Mbit densities. On 32-Mbit densities this pin is a no-connect (NC).
2. A23 exists on 128-Mbit densities. On 32- and 64-Mbit densities this pin is a no-connect (NC).
3. A24 exists on 256-Mbit densities. On 32-, 64- and 128-Mbit densities this pin is a no-connect (NC).
4. VCC = 5 V ± 10% for the 28F640J5/28F320J5.
Preliminary
5
28F128J3A, 28F640J3A, 28F320J3A
2.0
Principles of Operation
The Intel StrataFlash memory devices include an on-chip WSM to manage block erase, program,
and lock-bit configuration functions. It allows for 100% TTL-level control inputs, fixed power
supplies during block erasure, program, lock-bit configuration, and minimal processor overhead
with RAM-like interface timings.
After initial device power-up or return from reset/power-down mode (see Section 3.0, “Bus
Operations” on page 7), the device defaults to read array mode. Manipulation of external memory
control pins allows array read, standby, and output disable operations.
Read array, status register, query, and identifier codes can be accessed through the CUI (Command
User Interface) independent of the VPEN voltage. VPENH on VPEN enables successful block
erasure, programming, and lock-bit configuration. All functions associated with altering memory
contents—block erase, program, lock-bit configuration—are accessed via the CUI and verified
through the status register.
Commands are written using standard micro-processor write timings. The CUI contents serve as
input to the WSM, which controls the block erase, program, and lock-bit configuration. The
internal algorithms are regulated by the WSM, including pulse repetition, internal verification, and
margining of data. Addresses and data are internally latched during program cycles.
Interface software that initiates and polls progress of block erase, program, and lock-bit
configuration can be stored in any block. This code is copied to and executed from system RAM
during flash memory updates. After successful completion, reads are again possible via the Read
Array command. Block erase suspend allows system software to suspend a block erase to read or
program data from/to any other block. Program suspend allows system software to suspend a
program to read data from any other flash memory array location.
2.1
Data Protection
Depending on the application, the system designer may choose to make the VPEN switchable
(available only when memory block erases, programs, or lock-bit configurations are required) or
hardwired to VPENH. The device accommodates either design practice and encourages
optimization of the processor-memory interface.
When VPEN ≤ VPENLK, memory contents cannot be altered. The CUI’s two-step block erase, byte/
word program, and lock-bit configuration command sequences provide protection from unwanted
operations even when VPENH is applied to VPEN. All program functions are disabled when VCC is
below the write lockout voltage VLKO or when RP# is VIL. The device’s block locking capability
provides additional protection from inadvertent code or data alteration by gating erase and program
operations.
6
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
3.0
Bus Operations
The local CPU reads and writes flash memory in-system. All bus cycles to or from the flash
memory conform to standard microprocessor bus cycles.
Figure 4. Memory Map
A [23-0]:128 Mbit
A [22-0]: 64 Mbit
A [21-0]: 32 Mbit
A [23-1]: 128 Mbit
A [22-1]: 64 Mbit
A [21-1]: 32 Mbit
FFFFFF
7FFFFF
128-Kbyte Block
127
FE0000
7FFFFF
127
64-Kword Block
63
64-Kword Block
31
64-Kword Block
1
64-Kword Block
0
3FFFFF
128-Kbyte Block
63
3FFFFF
128-Mbit
3F0000
1FFFFF
128-Kbyte Block
31
1F0000
03FFFF
32-Mbit
3E0000
01FFFF
128-Kbyte Block
1
020000
01FFFF
64-Mbit
7E0000
010000
00FFFF
128-Kbyte Block
0
000000
000000
Byte-Wide (x8) Mode
Table 2.
64-Kword Block
7F0000
Word Wide (x16) Mode
Chip Enable Truth Table
CE2
CE1
CE0
DEVICE
VIL
VIL
VIL
Enabled
VIL
VIL
VIH
Disabled
VIL
VIH
VIL
Disabled
VIL
VIH
VIH
Disabled
VIH
VIL
VIL
Enabled
VIH
VIL
VIH
Enabled
VIH
VIH
VIL
Enabled
VIH
VIH
VIH
Disabled
NOTE: For single-chip applications, CE2 and CE1 can be strapped to GND.
Preliminary
7
28F128J3A, 28F640J3A, 28F320J3A
3.1
Read
Information can be read from any block, query, identifier codes, or status register independent of
the VPEN voltage.
Upon initial device power-up or after exit from reset/power-down mode, the device automatically
resets to read array mode. Otherwise, write the appropriate read mode command (Read Array, Read
Query, Read Identifier Codes, or Read Status Register) to the CUI. Six control pins dictate the data
flow in and out of the component: CE0, CE1, CE2, OE#, WE#, and RP#. The device must be
enabled (see Table 2, “Chip Enable Truth Table” on page 7), and OE# must be driven active to
obtain data at the outputs. CE0, CE1, and CE2 are the device selection controls and, when enabled
(see Table 2), select the memory device. OE# is the data output (DQ0–DQ15) control and, when
active, drives the selected memory data onto the I/O bus. WE# must be at VIH.
When reading information in read array mode, the device defaults to asynchronous page mode.
This mode provides high data transfer rate for memory subsystems. In this state, data is internally
read and stored in a high-speed page buffer. A2:0 addresses data in the page buffer. The page size is
four words or eight bytes. Asynchronous word/byte mode is supported with no additional
commands required.
3.2
Output Disable
With OE# at a logic-high level (VIH), the device outputs are disabled. Output pins DQ0–DQ15 are
placed in a high-impedance state.
3.3
Standby
CE0, CE1, and CE2 can disable the device (see Table 2) and place it in standby mode which
substantially reduces device power consumption. DQ0–DQ15 outputs are placed in a highimpedance state independent of OE#. If deselected during block erase, program, or lock-bit
configuration, the WSM continues functioning, and consuming active power until the operation
completes.
3.4
Reset/Power-Down
RP# at VIL initiates the reset/power-down mode.
In read modes, RP#-low deselects the memory, places output drivers in a high-impedance state, and
turns off numerous internal circuits. RP# must be held low for a minimum of tPLPH. Time tPHQV is
required after return from reset mode until initial memory access outputs are valid. After this wakeup interval, normal operation is restored. The CUI is reset to read array mode and status register is
set to 80H.
During block erase, program, or lock-bit configuration modes, RP#-low will abort the operation. In
default mode, STS transitions low and remains low for a maximum time of tPLPH + tPHRH until the
reset operation is complete. Memory contents being altered are no longer valid; the data may be
partially corrupted after a program or partially altered after an erase or lock-bit configuration. Time
tPHWL is required after RP# goes to logic-high (VIH) before another command can be written.
8
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
As with any automated device, it is important to assert RP# during system reset. When the system
comes out of reset, it expects to read from the flash memory. Automated flash memories provide
status information when accessed during block erase, program, or lock-bit configuration modes. If
a CPU reset occurs with no flash memory reset, proper initialization may not occur because the
flash memory may be providing status information instead of array data. Intel® Flash memories
allow proper initialization following a system reset through the use of the RP# input. In this
application, RP# is controlled by the same RESET# signal that resets the system CPU.
3.5
Read Query
The read query operation outputs block status information, CFI (Common Flash Interface) ID
string, system interface information, device geometry information, and Intel-specific extended
query information.
3.6
Read Identifier Codes
The read identifier codes operation outputs the manufacturer code, device code and the block lock
configuration codes for each block (see Figure 5 on page 10). Using the manufacturer and device
codes, the system CPU can automatically match the device with its proper algorithms. The block
lock configuration codes identify locked and unlocked blocks.
3.7
Write
Writing commands to the CUI enables reading of device data, query, identifier codes, inspection
and clearing of the status register, and, when VPEN = VPENH, block erasure, program, and lock-bit
configuration.
The Block Erase command requires appropriate command data and an address within the block to
be erased. The Byte/Word Program command requires the command and address of the location to
be written. Set Block Lock-Bit commands require the command and block within the device to be
locked. The Clear Block Lock-Bits command requires the command and address within the device.
The CUI does not occupy an addressable memory location. It is written when the device is enabled
and WE# is active. The address and data needed to execute a command are latched on the rising
edge of WE# or the first edge of CE0, CE1, or CE2 that disables the device (see Table 2). Standard
microprocessor write timings are used.
4.0
Command Definitions
When the VPEN voltage ≤ VPENLK, only read operations from the status register, query, identifier
codes, or blocks are enabled. Placing VPENH on VPEN additionally enables block erase, program,
and lock-bit configuration operations.
Device operations are selected by writing specific commands into the CUI. Table 4 defines these
commands.
Preliminary
9
28F128J3A, 28F640J3A, 28F320J3A
Figure 5. Device Identifier Code Memory Map
A[23-1]: 128 Mbit
A[22-1]: 64 Mbit
A[21-1]: 32 Mbit
Word
Address
7FFFFF
Block 127
Reserved for Future
Implementation
7F0003
7F0002
Block 127 Lock Configuration
Reserved for Future
Implementation
7F0000
7EFFFF
(Blocks 64 through 126)
3FFFFF
Block 63
Reserved for Future
Implementation
3F0003
3F0002
Block 63 Lock Configuration
Reserved for Future
Implementation
3F0000
3EFFFF
(Blocks 32 through 62)
Block 31 Lock Configuration
1EFFFF
01FFFF
Reserved for Future
Implementation
(Blocks 2 through 30)
Block 1
Reserved for Future
Implementation
010003
010002
010000
00FFFF
64 Mbit
1F0000
32 Mbit
1F0003
1F0002
128 Mbit
Block 31
Reserved for Future
Implementation
Block 1 Lock Configuration
Reserved for Future
Implementation
Block 0
Reserved for Future
Implementation
000004
000003
000002
000001
000000
Block 0 Lock Configuration
Device Code
Manufacturer Code
0606-06a
NOTE: A0 is not used in either x8 or x16 modes when obtaining these identifier codes. Data is always given on the low byte in
x16 mode (upper byte contains 00h).
10
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Table 3.
Bus Operations
Notes
RP#
CE0,1,2(1)
OE#(2)
WE#(2)
Address
VPEN
DQ(3)
STS
(default
mode)
4,5,6
VIH
Enabled
VIL
VIH
X
X
DOUT
High Z(7)
Output Disable
VIH
Enabled
VIH
VIH
X
X
High Z
X
Standby
VIH
Disabled
X
X
X
X
High Z
X
Reset/Power-Down
Mode
VIL
X
X
X
X
X
High Z
High Z(7)
Read Identifier Codes
VIH
Enabled
VIL
VIH
See
Figure 5
X
Note 8
High Z(7)
Read Query
VIH
Enabled
VIL
VIH
See
Table 7
X
Note 9
High Z(7)
Read Status (WSM off)
VIH
Enabled
VIL
VIH
X
X
DOUT
Read Status (WSM on)
VIH
Enabled
VIL
VIH
X
X
DQ15–8 = High Z
Mode
Read Array
DQ7 = DOUT
DQ6–0 = High Z
Write
6,10,11
VIH
Enabled
VIH
VIL
X
VPENH
DIN
X
NOTES:
1. See Table 2 for valid CE configurations.
2. OE# and WE# should never be enabled simultaneously.
3. DQ refers to DQ0–DQ7 if BYTE# is low and DQ0–DQ15 if BYTE# is high.
4. Refer to DC Characteristics. When VPEN ≤ VPENLK, memory contents can be read, but not altered.
5. X can be VIL or VIH for control and address pins, and VPENLK or VPENH for VPEN. See DC Characteristics for
VPENLK and VPENH voltages.
6. In default mode, STS is VOL when the WSM is executing internal block erase, program, or lock-bit
configuration algorithms. It is VOH when the WSM is not busy, in block erase suspend mode (with
programming inactive), program suspend mode, or reset/power-down mode.
7. High Z will be VOH with an external pull-up resistor.
8. See Section 3.6 for read identifier code data.
9. See Section 4.2 for read query data.
10.Command writes involving block erase, program, or lock-bit configuration are reliably executed when VPEN =
VPENH and VCC is within specification.
11. Refer to Table 4 for valid DIN during a write operation.
Preliminary
11
28F128J3A, 28F640J3A, 28F320J3A
Table 4.
Intel® StrataFlash™ Memory Command Set Definitions(1)
Scalable or
Basic
Command
Set(2)
Command
Bus
Cycles
Req’d.
Read Array
SCS/BCS
1
Read Identifier Codes
SCS/BCS
≥2
Notes
7
First Bus Cycle
Second Bus Cycle
Oper(3)
Addr(4)
Data(5,6)
Oper(3)
Addr(4)
Data(5,6)
Write
X
FFH
Write
X
90H
Read
IA
ID
Write
X
Write
X
98H
Read
QA
QD
70H
Read
X
SRD
Write
X
50H
SCS
≥2
Read Status Register
SCS/BCS
2
Clear Status Register
SCS/BCS
1
Write to Buffer
SCS/BCS
>2
9, 10,
11
Write
BA
E8H
Write
BA
N
Word/Byte Program
SCS/BCS
2
12,13
Write
X
40H
or
10H
Write
PA
PD
Block Erase
SCS/BCS
2
11,12
Write
BA
20H
Write
BA
D0H
Block Erase, Program
Suspend
SCS/BCS
1
12,14
Write
X
B0H
Block Erase, Program
Resume
SCS/BCS
1
12
Write
X
D0H
SCS
2
Write
X
B8H
Write
X
CC
Read Query
Configuration
Set Block Lock-Bit
SCS
2
Clear Block Lock-Bits
SCS
2
Protection Program
2
8
15
Write
X
60H
Write
BA
01H
Write
X
60H
Write
X
D0H
Write
X
C0H
Write
PA
PD
NOTES:
1. Commands other than those shown above are reserved by Intel for future device implementations and
should not be used.
2. The Basic Command Set (BCS) is the same as the 28F008SA Command Set or Intel Standard Command
Set. The Scalable Command Set (SCS) is also referred to as the Intel Extended Command Set.
3. Bus operations are defined in Table 3.
4. X = Any valid address within the device.
BA = Address within the block.
IA = Identifier Code Address: see Figure 5 and Table 15.
QA = Query database Address.
PA = Address of memory location to be programmed.
RCD = Data to be written to the read configuration register. This data is presented to the device on A16-1; all
other address inputs are ignored.
5. ID = Data read from Identifier Codes.
QD = Data read from Query database.
SRD = Data read from status register. See Table 16 for a description of the status register bits.
PD = Data to be programmed at location PA. Data is latched on the rising edge of WE#.
CC = Configuration Code.
6. The upper byte of the data bus (DQ8–DQ15) during command writes is a “Don’t Care” in x16 operation.
7. Following the Read Identifier Codes command, read operations access manufacturer, device and block lock
codes. See Section 4.3 for read identifier code data.
8. If the WSM is running, only DQ7 is valid; DQ15–DQ8 and DQ6–DQ0 float, which places them in a highimpedance state.
9. After the Write to Buffer command is issued check the XSR to make sure a buffer is available for writing.
12
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
10.The number of bytes/words to be written to the Write Buffer = N + 1, where N = byte/word count argument.
Count ranges on this device for byte mode are N = 00H to N = 1FH and for word mode are N = 0000H to N =
000FH. The third and consecutive bus cycles, as determined by N, are for writing data into the Write Buffer.
The Confirm command (D0H) is expected after exactly N + 1 write cycles; any other command at that point in
the sequence aborts the write to buffer operation. Please see Figure 7, “Write to Buffer Flowchart” on
page 30 for additional information.
11. The write to buffer or erase operation does not begin until a Confirm command (D0h) is issued.
12.Attempts to issue a block erase or program to a locked block.
13.Either 40H or 10H are recognized by the WSM as the byte/word program setup.
14.Program suspends can be issued after either the Write-to-Buffer or Word-/Byte-Program operation is
initiated.
15.The clear block lock-bits operation simultaneously clears all block lock-bits.
4.1
Read Array Command
Upon initial device power-up and after exit from reset/power-down mode, the device defaults to
read array mode. The read configuration register defaults to asynchronous read page mode. The
Read Array command also causes the device to enter read array mode. The device remains enabled
for reads until another command is written. Once the internal WSM has started a block erase,
program, or lock-bit configuration, the device will not recognize the Read Array command until
the WSM completes its operation unless the WSM is suspended via an Erase or Program Suspend
command. The Read Array command functions independently of the VPEN voltage.
4.2
Read Query Mode Command
This section defines the data structure or “database” returned by the Common Flash Interface (CFI)
Query command. System software should parse this structure to gain critical information such as
block size, density, x8/x16, and electrical specifications. Once this information has been obtained,
the software will know which command sets to use to enable flash writes, block erases, and
otherwise control the flash component. The Query is part of an overall specification for multiple
command set and control interface descriptions called Common Flash Interface, or CFI.
4.2.1
Query Structure Output
The Query “database” allows system software to gain information for controlling the flash
component. This section describes the device’s CFI-compliant interface that allows the host system
to access Query data.
Query data are always presented on the lowest-order data outputs (DQ0–7) only. The numerical
offset value is the address relative to the maximum bus width supported by the device. On this
family of devices, the Query table device starting address is a 10h, which is a word address for x16
devices.
For a word-wide (x16) device, the first two bytes of the Query structure, “Q” and “R” in ASCII,
appear on the low byte at word addresses 10h and 11h. This CFI-compliant device outputs 00H
data on upper bytes. Thus, the device outputs ASCII “Q” in the low byte (DQ0–7) and 00h in the
high byte (DQ8–15).
At Query addresses containing two or more bytes of information, the least significant data byte is
presented at the lower address, and the most significant data byte is presented at the higher address.
Preliminary
13
28F128J3A, 28F640J3A, 28F320J3A
In all of the following tables, addresses and data are represented in hexadecimal notation, so the
“h” suffix has been dropped. In addition, since the upper byte of word-wide devices is always
“00h,” the leading “00” has been dropped from the table notation and only the lower byte value is
shown. Any x16 device outputs can be assumed to have 00h on the upper byte in this mode.
Table 5.
Summary of Query Structure Output as a Function of Device and Mode
Device
Type/
Mode
x16 device
x16 mode
x16 device
x8 mode
Query start location in
maximum device bus
width addresses
Query data with maximum
device bus width addressing
10h
Query data with byte
addressing
Hex
Offset
Hex
Code
ASCII
Value
Hex
Offset
Hex
Code
ASCII
Value
10:
11:
12:
0051
0052
0059
“Q”
“R”
“Y”
20:
21:
22:
20:
21:
22:
51
00
52
51
51
52
“Q”
“Null”
“R”
“Q”
“Q”
“R”
N/A(1)
N/A(1)
NOTE:
1. The system must drive the lowest order addresses to access all the device’s array data when the device is
configured in x8 mode. Therefore, word addressing, where these lower addresses are not toggled by the
system, is "Not Applicable" for x8-configured devices.
Table 6.
Example of Query Structure Output of a x16- and x8-Capable Device
Word Addressing
Offset
Hex Code
A15–A0
0010h
0011h
0012h
0013h
0014h
0015h
0016h
0017h
0018h
...
4.2.2
Byte Addressing
Value
D15–D0
0051
0052
0059
P_IDLO
P_IDHI
PLO
PHI
A_IDLO
A_IDHI
...
Offset
Hex Code
A7–A0
“Q”
“R”
“Y”
PrVendor
ID #
PrVendor
TblAdr
AltVendor
ID #
...
20h
21h
22h
23h
24h
25h
26h
27h
28h
...
Value
D7–D0
51
51
52
52
59
59
P_IDLO
P_IDLO
P_IDHI
...
“Q”
“Q”
“R”
“R”
“Y”
“Y”
PrVendor
ID #
ID #
...
Query Structure Overview
The Query command causes the flash component to display the Common Flash Interface (CFI)
Query structure or “database.” The structure sub-sections and address locations are summarized
below. See AP-646 Common Flash Interface (CFI) and Command Sets (order number 292204) for
a full description of CFI.
The following sections describe the Query structure sub-sections in detail.
14
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Table 7.
Query Structure(1)
Offset
Sub-Section Name
Description
00h
Manufacturer Code
01h
Device Code
(BA+2)h(2)
04-0Fh
Block Status Register
Block-Specific Information
Reserved
Reserved for Vendor-Specific Information
10h
CFI Query Identification String
Reserved for Vendor-Specific Information
1Bh
System Interface Information
Command Set ID and Vendor Data Offset
27h
Device Geometry Definition
Flash Device Layout
P(3)
Primary Intel-Specific Extended
Query Table
Vendor-Defined Additional Information Specific to the
Primary Vendor Algorithm
NOTES:
1. Refer to the Query Structure Output section and offset 28h for the detailed definition of offset address as a
function of device bus width and mode.
2. BA = Block Address beginning location (i.e., 02000h is block 2’s beginning location when the block size is
128 Kbyte).
3. Offset 15 defines “P” which points to the Primary Intel-Specific Extended Query Table.
4.2.3
Block Status Register
The block status register indicates whether an erase operation completed successfully or whether a
given block is locked or can be accessed for flash program/erase operations.
Table 8.
Block Status Register
Offset
Length
(BA+2)h(1)
1
Description
Block Lock Status Register
BSR.0 Block Lock Status
0 = Unlocked
1 = Locked
BSR 1–7: Reserved for Future Use
Address
Value
BA+2:
--00 or --01
BA+2:
(bit 0): 0 or 1
BA+2:
(bit 1–7): 0
NOTE:
1. BA = The beginning location of a Block Address (i.e., 008000h is block 1’s (64-KB block) beginning location
in word mode).
4.2.4
CFI Query Identification String
The CFI Query Identification String provides verification that the component supports the
Common Flash Interface specification. It also indicates the specification version and supported
vendor-specified command set(s).
Table 9.
Preliminary
CFI Identification
Offset
Length
Description
10h
3
Query-unique ASCII string “QRY”
13h
2
15h
2
Primary vendor command set and control interface ID code.
16-bit ID code for vendor-specified algorithms
Extended Query Table primary algorithm address
Add.
Hex
Code
10
11:
12:
13:
14:
15:
16:
--51
--52
--59
--01
--00
--31
--00
Value
“Q”
“R”
“Y”
15
28F128J3A, 28F640J3A, 28F320J3A
Table 9.
4.2.5
CFI Identification
Offset
Length
Description
Add.
Hex
Code
17h
2
19h
2
Alternate vendor command set and control interface ID code.
0000h means no second vendor-specified algorithm exists
Secondary algorithm Extended Query Table address.
0000h means none exists
17:
18:
19:
1A:
--00
--00
--00
--00
Add.
Hex
Code
Value
1B:
--27
2.7 V
1C:
--36
3.6 V
1D:
--00
0.0 V
1E:
--00
0.0 V
1F:
20:
21:
22:
--07
--07
--0A
--00
128 µs
128 µs
1s
NA
23:
--04
2 ms
24:
25:
26:
--04
--04
--00
2 ms
16 s
NA
Value
System Interface Information
The following device information can optimize system interface software.
Table 10. System Interface Information
16
Offset
Length
1Bh
1
1Ch
1
1Dh
1
1Eh
1
1Fh
20h
21h
22h
1
1
1
1
23h
1
24h
25h
26h
1
1
1
Description
VCC logic supply minimum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 BCD volts
VCC logic supply maximum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 BCD volts
VPP [programming] supply minimum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 HEX volts
VPP [programming] supply maximum program/erase voltage
bits 0–3 BCD 100 mV
bits 4–7 HEX volts
“n” such that typical single word program time-out = 2n µs
“n” such that typical max. buffer write time-out = 2n µs
“n” such that typical block erase time-out = 2n ms
“n” such that typical full chip erase time-out = 2n ms
“n” such that maximum word program time-out = 2n times
typical
“n” such that maximum buffer write time-out = 2n times typical
“n” such that maximum block erase time-out = 2n times typical
“n” such that maximum chip erase time-out = 2n times typical
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
4.2.6
Device Geometry Definition
This field provides critical details of the flash device geometry.
Table 11. Device Geometry Definition
Code See Table
Below
Offset
Length
27h
1
“n” such that device size = 2n in number of bytes
27:
28h
2
Flash device interface: x8 async x16 async x8/x16 async
28:
--02
x8/
x16
2Ah
2
28:00,29:00 28:01,29:00 28:02,29:00
“n” such that maximum number of bytes in write buffer = 2n
29:
2A:
2B:
--00
--05
--00
32
2C:
--01
1
2Ch
1
2Dh
4
Description
Number of erase block regions within device:
1. x = 0 means no erase blocking; the device erases in “bulk”
2. x specifies the number of device or partition regions with one or
more contiguous same-size erase blocks
3. Symmetrically blocked partitions have one blocking region
4. Partition size = (total blocks) x (individual block size)
Erase Block Region 1 Information
bits 0–15 = y, y+1 = number of identical-size erase blocks
bits 16–31 = z, region erase block(s) size are z x 256 bytes
2D:
2E:
2F:
30:
Device Geometry Definition
Preliminary
Address
32 Mbit
64 Mbit
128 Mbit
27:
28:
29:
2A:
2B:
2C:
2D:
2E:
2F:
30:
--16
--02
--00
--05
--00
--01
--1F
--00
--00
--02
--17
--02
--00
--05
--00
--01
--3F
--00
--00
--02
--18
--02
--00
--05
--00
--01
--7F
--00
--00
--02
17
28F128J3A, 28F640J3A, 28F320J3A
4.2.7
Primary-Vendor Specific Extended Query Table
Certain flash features and commands are optional. The Primary Vendor-Specific Extended Query
table specifies this and other similar information.
Table 12. Primary Vendor-Specific Extended Query
Offset(1)
P = 31h
(P+0)h
(P+1)h
(P+2)h
(P+3)h
(P+4)h
Length
3
Primary extended query table
Unique ASCII string “PRI”
1
1
Major version number, ASCII
Minor version number, ASCII
Optional feature and command support (1=yes, 0=no)
bits 9–31 are reserved; undefined bits are “0.” If bit 31 is
“1” then another 31 bit field of optional features follows at
the end of the bit-30 field.
bit 0 Chip erase supported
bit 1 Suspend erase supported
bit 2 Suspend program supported
bit 3 Legacy lock/unlock supported
bit 4 Queued erase supported
bit 5 Instant Individual block locking supported
bit 6 Protection bits supported
bit 7 Page-mode read supported
bit 8 Synchronous read supported
Supported functions after suspend: read Array, Status,
Query
Other supported operations are:
bits 1–7 reserved; undefined bits are “0”
bit 0 Program supported after erase suspend
Block status register mask
bits 2–15 are Reserved; undefined bits are “0”
bit 0 Block Lock-Bit Status register active
bit 1 Block Lock-Down Bit Status active
VCC logic supply highest performance program/erase
voltage
bits 0–3 BCD value in 100 mV
bits 4–7 BCD value in volts
VPP optimum program/erase supply voltage
bits 0–3 BCD value in 100 mV
bits 4–7 HEX value in volts
(P+5)h
(P+6)h
(P+7)h
(P+8)h
4
(P+9)h
1
(P+A)h
(P+B)h
Description
(Optional Flash Features and Commands)
2
(P+C)h
1
(P+D)h
1
Add.
Hex
Code
31:
--50
32:
--52
33:
--49
34:
--31
35:
--31
36:
--0A
37:
--00
38:
--00
39:
--00
bit 0 = 0
bit 1 = 1
bit 2 = 1
bit 3 = 1(1)
bit 4 = 0
bit 5 = 0
bit 6 = 1
bit 7 = 1
bit 8 = 0
3A:
Value
“P”
“R”
“I”
“1”
“1”
No
Yes
Yes
Yes(1)
No
No
Yes
Yes
No
--01
bit 0 = 1
3B:
--01
3C:
--00
bit 0 = 1
bit 1 = 0
Yes
Yes
No
3D:
--33
3.3 V
3E:
--00
0.0 V
NOTE:
1. Future devices may not support the described “Legacy Lock/Unlock” function. Thus bit 3 would have a value
of “0.”
18
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Table 13. Protection Register Information
Offset(1)
P = 31h
Length
(P+E)h
1
(P+F)h
(P+10)h
(P+11)h
(P+12)h
4
Description
(Optional Flash Features and Commands)
Number of Protection register fields in JEDEC ID space.
“00h,” indicates that 256 protection bytes are available
Protection Field 1: Protection Description
This field describes user-available One Time Programmable
(OTP) protection register bytes. Some are pre-programmed
with device-unique serial numbers. Others are userprogrammable. Bits 0-15 point to the protection register lock
byte, the section’s first byte. The following bytes are factory
pre-programmed and user-programmable.
Add.
Hex
Code
Value
3F:
--01
01
40:
--00
00h
Add.
Hex
Code
Value
44:
--03
8 byte
45:
--00
0
bits 0-7 = Lock/bytes JEDEC-plane physical low address
bits 8-15 = Lock/bytes JEDEC-plane physical high address
bits 16-23 = “n” such that 2n = factory pre-programmed bytes
bits 24-31 = “n” such that 2n = user-programmable bytes
NOTE:
1. The variable P is a pointer which is defined at CFI offset 15h.
Table 14. Burst Read Information
Offset(1)
P = 31h
Length
Description
(Optional Flash Features and Commands)
Page Mode Read capability
(P+13)h
1
(P+14)h
1
(P+15)h
bits 0–7 = “n” such that 2n HEX value represents the number
of read-page bytes. See offset 28h for device word width to
determine page-mode data output width. 00h indicates no
read page buffer.
Number of synchronous mode read configuration fields that
follow. 00h indicates no burst capability.
Reserved for future use
46:
NOTE:
1. The variable P is a pointer which is defined at CFI offset 15h.
4.3
Read Identifier Codes Command
The identifier code operation is initiated by writing the Read Identifier Codes command. Following
the command write, read cycles from addresses shown in Figure 5 on page 10 retrieve the
manufacturer, device and block lock configuration codes (see Table 15 for identifier code values).
Page-mode reads are not supported in this read mode. To terminate the operation, write another
valid command. Like the Read Array command, the Read Identifier Codes command functions
independently of the VPEN voltage. This command is valid only when the WSM is off or the device
is suspended. Following the Read Identifier Codes command, the following information can be
read:
Preliminary
19
28F128J3A, 28F640J3A, 28F320J3A
Table 15. Identifier Codes
Code
Manufacture Code
Device Code
Address(1)
Data
00000
(00) 89
32-Mbit
00001
(00) 16
64-Mbit
00001
(00) 17
00001
(00) 18
128-Mbit
Block Lock Configuration
X0002(2)
• Block Is Unlocked
DQ0 = 0
• Block Is Locked
DQ0 = 1
• Reserved for Future Use
DQ1–7
NOTES:
1. A0 is not used in either x8 or x16 modes when obtaining the identifier codes. The lowest order address line is
A1. Data is always presented on the low byte in x16 mode (upper byte contains 00h).
2. X selects the specific block’s lock configuration code. See Figure 5 for the device identifier code memory
map.
4.4
Read Status Register Command
The status register may be read to determine when a block erase, program, or lock-bit configuration
is complete and whether the operation completed successfully. It may be read at any time by
writing the Read Status Register command. After writing this command, all subsequent read
operations output data from the status register until another valid command is written. Page-mode
reads are not supported in this read mode. The status register contents are latched on the falling
edge of OE# or the first edge of CE0, CE1, or CE2 that enables the device (see Table 2, “Chip
Enable Truth Table” on page 7). OE# must toggle to VIH or the device must be disabled (see Table
2) before further reads to update the status register latch. The Read Status Register command
functions independently of the VPEN voltage.
During a program, block erase, set lock-bit, or clear lock-bit command sequence, only SR.7 is valid
until the Write State Machine completes or suspends the operation. Device I/O pins DQ0–DQ6 and
DQ8–DQ15 are placed in a high-impedance state. When the operation completes or suspends
(check status register bit 7), all contents of the status register are valid when read.
20
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Table 16. Status Register Definitions
WSMS
ESS
ECLBS
PSLBS
VPENS
PSS
DPS
R
bit 7
bit 6
bit 5
bit 4
bit 3
bit2
bit 1
bit 0
High Z
When
Busy?
Status Register Bits
No
SR.7 = WRITE STATE MACHINE STATUS
1 = Ready
0 = Busy
Yes
SR.6 = ERASE SUSPEND STATUS
1 = Block Erase Suspended
0 = Block Erase in Progress/Completed
Yes
Notes
Check STS or SR.7 to determine block erase,
program, or lock-bit configuration completion. SR.6–
SR.0 are not driven while SR.7 = “0.”
If both SR.5 and SR.4 are “1”s after a block erase or
lock-bit configuration attempt, an improper
command sequence was entered.
SR.5 = ERASE AND CLEAR LOCK-BITSSTATUS
1 = Error in Block Erasure or Clear Lock-Bits
0 = Successful Block Erase or Clear Lock-Bits
Yes
SR.4 = PROGRAM AND SET LOCK-BIT STATUS
1 = Error in Setting Lock-Bit
0 = Successful Set Block Lock Bit
Yes
SR.3 = PROGRAMMING VOLTAGE STATUS
1 = Low Programming Voltage Detected, Operation
Aborted
0 = Programming Voltage OK
Yes
Yes
Yes
SR.3 does not provide a continuous programming
voltage level indication. The WSM interrogates and
indicates the programming voltage level only after
Block Erase, Program, Set Block Lock-Bit, or Clear
Block Lock-Bits command sequences.
SR.2 = PROGRAM SUSPEND STATUS
1 = Program suspended
0 = Program in progress/completed
SR.1 does not provide a continuous indication of
block lock-bit values. The WSM interrogates the
block lock-bits only after Block Erase, Program, or
Lock-Bit configuration command sequences. It
informs the system, depending on the attempted
operation, if the block lock-bit is set. Read the block
lock configuration codes using the Read Identifier
Codes command to determine block lock-bit status.
SR.1 = DEVICE PROTECT STATUS
1 = Block Lock-Bit Detected, Operation Abort
0 = Unlock
SR.0 = RESERVED FOR FUTURE ENHANCEMENTS
SR.0 is reserved for future use and should be
masked when polling the status register.
Table 17. eXtended Status Register Definitions
WBS
Reserved
bit 7
bits 6—0
High Z
When
Busy?
Status Register Bits
No
XSR.7 = WRITE BUFFER STATUS
1 = Write buffer available
0 = Write buffer not available
Yes
XSR.6–XSR.0 = RESERVED FOR FUTURE
ENHANCEMENTS
Preliminary
Notes
After a Buffer-Write command, XSR.7 = 1 indicates
that a Write Buffer is available.
SR.6–SR.0 are reserved for future use and should
be masked when polling the status register.
21
28F128J3A, 28F640J3A, 28F320J3A
4.5
Clear Status Register Command
Status register bits SR.5, SR.4, SR.3, and SR.1 are set to “1”s by the WSM and can only be reset by
the Clear Status Register command. These bits indicate various failure conditions (see Table 16).
By allowing system software to reset these bits, several operations (such as cumulatively erasing or
locking multiple blocks or writing several bytes in sequence) may be performed. The status register
may be polled to determine if an error occurred during the sequence.
To clear the status register, the Clear Status Register command (50H) is written. It functions
independently of the applied VPEN voltage. The Clear Status Register command is only valid when
the WSM is off or the device is suspended.
4.6
Block Erase Command
Erase is executed one block at a time and initiated by a two-cycle command. A block erase setup is
first written, followed by an block erase confirm. This command sequence requires an appropriate
address within the block to be erased (erase changes all block data to FFH). Block preconditioning,
erase, and verify are handled internally by the WSM (invisible to the system). After the two-cycle
block erase sequence is written, the device automatically outputs status register data when read (see
Figure 10, “Block Erase Flowchart” on page 33). The CPU can detect block erase completion by
analyzing the output of the STS pin or status register bit SR.7. Toggle OE#, CE0, CE1, or CE2 to
update the status register.
When the block erase is complete, status register bit SR.5 should be checked. If a block erase error
is detected, the status register should be cleared before system software attempts corrective actions.
The CUI remains in read status register mode until a new command is issued.
This two-step command sequence of set-up followed by execution ensures that block contents are
not accidentally erased. An invalid Block Erase command sequence will result in both status
register bits SR.4 and SR.5 being set to “1.” Also, reliable block erasure can only occur when VCC
is valid and VPEN = VPENH. If block erase is attempted while VPEN ≤ VPENLK, SR.3 and SR.5 will
be set to “1.” Successful block erase requires that the corresponding block lock-bit be cleared. If
block erase is attempted when the corresponding block lock-bit is set, SR.1 and SR.5 will be set to
“1.”
4.7
Block Erase Suspend Command
The Block Erase Suspend command allows block-erase interruption to read or program data in
another block of memory. Once the block erase process starts, writing the Block Erase Suspend
command requests that the WSM suspend the block erase sequence at a predetermined point in the
algorithm. The device outputs status register data when read after the Block Erase Suspend
command is written. Polling status register bit SR.7 then SR.6 can determine when the block erase
operation has been suspended (both will be set to “1”). In default mode, STS will also transition to
VOH. Specification tWHRH defines the block erase suspend latency.
At this point, a Read Array command can be written to read data from blocks other than that which
is suspended. A program command sequence can also be issued during erase suspend to program
data in other blocks. During a program operation with block erase suspended, status register bit
SR.7 will return to “0” and STS output (in default mode) will transition to VOL. However, SR.6
will remain “1” to indicate block erase suspend status. Using the Program Suspend command, a
program operation can also be suspended. Resuming a suspended programming operation by
22
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
issuing the Program Resume command allows continuing of the suspended programming
operation. To resume the suspended erase, the user must wait for the programming operation to
complete before issuing the Block Erase Resume command.
The only other valid commands while block erase is suspended are Read Query, Read Status
Register, Clear Status Register, Configure, and Block Erase Resume. After a Block Erase Resume
command is written to the flash memory, the WSM will continue the block erase process. Status
register bits SR.6 and SR.7 will automatically clear and STS (in default mode) will return to VOL.
After the Erase Resume command is written, the device automatically outputs status register data
when read (see Figure 11, “Block Erase Suspend/Resume Flowchart” on page 34). VPEN must
remain at VPENH (the same VPEN level used for block erase) while block erase is suspended. Block
erase cannot resume until program operations initiated during block erase suspend have completed.
4.8
Write to Buffer Command
To program the flash device, a Write to Buffer command sequence is initiated. A variable number
of bytes, up to the buffer size, can be loaded into the buffer and written to the flash device. First, the
Write to Buffer Setup command is issued along with the Block Address (see Figure 7, “Write to
Buffer Flowchart” on page 30). At this point, the eXtended Status Register (XSR, see Table 17)
information is loaded and XSR.7 reverts to “buffer available” status. If XSR.7 = 0, the write buffer
is not available. To retry, continue monitoring XSR.7 by issuing the Write to Buffer setup
command with the Block Address until XSR.7 = 1. When XSR.7 transitions to a “1,” the buffer is
ready for loading.
Now a word/byte count is given to the part with the Block Address. On the next write, a device
start address is given along with the write buffer data. Subsequent writes provide additional device
addresses and data, depending on the count. All subsequent addresses must lie within the start
address plus the count.
Internally, this device programs many flash cells in parallel. Because of this parallel programming,
maximum programming performance and lower power are obtained by aligning the start address at
the beginning of a write buffer boundary (i.e., A4–A0 of the start address = 0).
After the final buffer data is given, a Write Confirm command is issued. This initiates the WSM
(Write State Machine) to begin copying the buffer data to the flash array. If a command other than
Write Confirm is written to the device, an “Invalid Command/Sequence” error will be generated
and Status Register bits SR.5 and SR.4 will be set to a “1.” For additional buffer writes, issue
another Write to Buffer Setup command and check XSR.7.
If an error occurs while writing, the device will stop writing, and status register bit SR.4 will be set
to a “1” to indicate a program failure. The internal WSM verify only detects errors for “1”s that do
not successfully program to “0”s. If a program error is detected, the status register should be
cleared. Any time SR.4 and/or SR.5 is set (e.g., a media failure occurs during a program or an
erase), the device will not accept any more Write to Buffer commands. Additionally, if the user
attempts to program past an erase block boundary with a Write to Buffer command, the device will
abort the write to buffer operation. This will generate an “Invalid Command/Sequence” error and
status register bits SR.5 and SR.4 will be set to a “1.”
Reliable buffered writes can only occur when VPEN = VPENH. If a buffered write is attempted
while VPEN ≤ VPENLK, status register bits SR.4 and SR.3 will be set to “1.” Buffered write attempts
with invalid VCC and VPEN voltages produce spurious results and should not be attempted. Finally,
successful programming requires that the corresponding block lock-bit be reset. If a buffered write
is attempted when the corresponding block lock-bit is set, SR.1 and SR.4 will be set to “1.”
Preliminary
23
28F128J3A, 28F640J3A, 28F320J3A
4.9
Byte/Word Program Commands
Byte/Word program is executed by a two-cycle command sequence. Byte/Word program setup
(standard 40H or alternate 10H) is written followed by a second write that specifies the address and
data (latched on the rising edge of WE#). The WSM then takes over, controlling the program and
program verify algorithms internally. After the program sequence is written, the device
automatically outputs status register data when read (see Figure 8, “Byte/Word Program
Flowchart” on page 31). The CPU can detect the completion of the program event by analyzing the
STS pin or status register bit SR.7.
When program is complete, status register bit SR.4 should be checked. If a program error is
detected, the status register should be cleared. The internal WSM verify only detects errors for “1”s
that do not successfully program to “0”s. The CUI remains in read status register mode until it
receives another command.
Reliable byte/word programs can only occur when VCC and VPEN are valid. If a byte/word
program is attempted while VPEN ≤ VPENLK, status register bits SR.4 and SR.3 will be set to “1.”
Successful byte/word programs require that the corresponding block lock-bit be cleared. If a byte/
word program is attempted when the corresponding block lock-bit is set, SR.1 and SR.4 will be set
to “1.”
4.10
Program Suspend Command
The Program Suspend command allows program interruption to read data in other flash memory
locations. Once the programming process starts (either by initiating a write to buffer or byte/word
program operation), writing the Program Suspend command requests that the WSM suspend the
program sequence at a predetermined point in the algorithm. The device continues to output status
register data when read after the Program Suspend command is written. Polling status register bits
SR.7 can determine when the programming operation has been suspended. When SR.7 = 1, SR.2
should also be set to “1”, indicating that the device is in the program suspend mode. STS in level
RY/BY# mode will also transition to VOH. Specification tWHRH1 defines the program suspend
latency.
At this point, a Read Array command can be written to read data from locations other than that
which is suspended. The only other valid commands while programming is suspended are Read
Query, Read Status Register, Clear Status Register, Configure, and Program Resume. After a
Program Resume command is written, the WSM will continue the programming process. Status
register bits SR.2 and SR.7 will automatically clear and STS in RY/BY# mode will return to VOL.
After the Program Resume command is written, the device automatically outputs status register
data when read. VPEN must remain at VPENH and VCC must remain at valid VCC levels (the same
VPEN and VCC levels used for programming) while in program suspend mode. Refer to Figure 9,
“Program Suspend/Resume Flowchart” on page 32.
4.11
Set Read Configuration Command
This command is not support on this product. This device will default to the asynchronous page
mode. If this command is given to the device it will not effect the operation of the device.
24
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
4.11.1
Read Configuration
The device will support both asynchronous page mode and standard word/byte reads. No
configuration is required.
Status register and identifier only support standard word/byte single read operations.
Table 18. Read Configuration Register Definition
RM
R
R
R
R
R
R
R
16 (A16)
15
14
13
12
11
10
9
R
R
R
R
R
R
R
R
8
7
6
5
4
3
2
1
Notes
RCR.16 = READ MODE (RM)
0 = Standard Word/Byte Reads Enabled (Default)
1 = Page-Mode Reads Enabled
Read mode configuration effects reads from the flash array.
Status register, query, and identifier reads support standard
word/byte read cycles.
RCR.15–1 = RESERVED FOR FUTURE ENHANCEMENTS (R)
These bits are reserved for future use. Set these bits to “0.”
4.12
Configuration Command
The Status (STS) pin can be configured to different states using the Configuration command. Once
the STS pin has been configured, it remains in that configuration until another configuration
command is issued or RP# is asserted low. Initially, the STS pin defaults to RY/BY# operation
where RY/BY# low indicates that the state machine is busy. RY/BY# high indicates that the state
machine is ready for a new operation or suspended. Table 19, “Configuration Coding Definitions”
on page 26 displays the possible STS configurations.
To reconfigure the Status (STS) pin to other modes, the Configuration command is given followed
by the desired configuration code. The three alternate configurations are all pulse mode for use as a
system interrupt as described below. For these configurations, bit 0 controls Erase Complete
interrupt pulse, and bit 1 controls Program Complete interrupt pulse. Supplying the 00h
configuration code with the Configuration command resets the STS pin to the default RY/BY#
level mode. The possible configurations and their usage are described in Table 19, “Configuration
Coding Definitions” on page 26. The Configuration command may only be given when the device
is not busy or suspended. Check SR.7 for device status. An invalid configuration code will result in
both status register bits SR.4 and SR.5 being set to “1.” When configured in one of the pulse
modes, the STS pin pulses low with a typical pulse width of 250 ns.
Preliminary
25
28F128J3A, 28F640J3A, 28F320J3A
Table 19. Configuration Coding Definitions
Reserved
Pulse on
Program
Complete(1)
Pulse on
Erase
Compete(1)
bits 7—2
bit 1
bit 0
DQ7–DQ2 = Reserved
DQ1–DQ0 = STS Pin Configuration Codes
00 = default, level mode RY/BY#
(device ready) indication
01 = pulse on Erase complete
10 = pulse on Program complete
11 = pulse on Erase or Program Complete
Configuration Codes 01b, 10b, and 11b are all pulse mode
such that the STS pin pulses low then high when the
operation indicated by the given configuration is completed.
Configuration Command Sequences for STS pin
configuration (masking bits DQ7–DQ2 to 00h) are as follows:
Default RY/BY# level mode: B8h, 00h
ER INT (Erase Interrupt): B8h, 01h
Pulse-on-Erase Complete
PR INT (Program Interrupt): B8h, 02h
Pulse-on-Program Complete
ER/PR INT (Erase or Program Interrupt): B8h, 03h
Pulse-on-Erase or Program Complete
DQ7–DQ2 are reserved for future use.
default (DQ1–DQ0 = 00) RY/BY#, level mode
— used to control HOLD to a memory controller to prevent
accessing a flash memory subsystem while any flash device's
WSM is busy.
configuration 01 ER INT, pulse mode
— used to generate a system interrupt pulse when any flash
device in an array has completed a Block Erase. Helpful for
reformatting blocks after file system free space reclamation or
“cleanup”
configuration 10 PR INT, pulse mode
— used to generate a system interrupt pulse when any flash
device in an array has complete a Program operation. Provides
highest performance for servicing continuous buffer write
operations.
configuration 11 ER/PR INT, pulse mode
— used to generate system interrupts to trigger servicing of flash
arrays when either erase or program operations are completed
when a common interrupt service routine is desired.
NOTE: 1. When the device is configured in one of the pulse modes, the STS pin pulses low with a typical pulse
width of 250 ns.
4.13
Set Block Lock-Bit Commands
A flexible block locking and unlocking scheme is enabled via block lock-bits. The block lock-bits
gate program and erase operations. Individual block lock-bits can be set using the Set Block LockBit command. This command is invalid while the WSM is running or the device is suspended.
Set block lock-bit commands are executed by a two-cycle sequence. The set block setup along with
appropriate block address is followed by either the set block lock-bit confirm (and an address
within the block to be locked). The WSM then controls the set lock-bit algorithm. After the
sequence is written, the device automatically outputs status register data when read (see Figure 12
on page 35). The CPU can detect the completion of the set lock-bit event by analyzing the STS pin
output or status register bit SR.7.
When the set lock-bit operation is complete, status register bit SR.4 should be checked. If an error
is detected, the status register should be cleared. The CUI will remain in read status register mode
until a new command is issued.
This two-step sequence of set-up followed by execution ensures that lock-bits are not accidentally
set. An invalid Set Block Lock-Bit command will result in status register bits SR.4 and SR.5 being
set to “1.” Also, reliable operations occur only when VCC and VPEN are valid. With VPEN ≤
VPENLK, lock-bit contents are protected against alteration.
26
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
4.14
Clear Block Lock-Bits Command
All set block lock-bits are cleared in parallel via the Clear Block Lock-Bits command. Block lockbits can be cleared using only the Clear Block Lock-Bits command. This command is invalid while
the WSM is running or the device is suspended.
Clear block lock-bits command is executed by a two-cycle sequence. A clear block lock-bits setup
is first written. The device automatically outputs status register data when read (see Figure 13 on
page 36). The CPU can detect completion of the clear block lock-bits event by analyzing the STS
pin output or status register bit SR.7.
When the operation is complete, status register bit SR.5 should be checked. If a clear block lock-bit
error is detected, the status register should be cleared. The CUI will remain in read status register
mode until another command is issued.
This two-step sequence of set-up followed by execution ensures that block lock-bits are not
accidentally cleared. An invalid Clear Block Lock-Bits command sequence will result in status
register bits SR.4 and SR.5 being set to “1.” Also, a reliable clear block lock-bits operation can
only occur when VCC and VPEN are valid. If a clear block lock-bits operation is attempted while
VPEN ≤ VPENLK, SR.3 and SR.5 will be set to “1.”
If a clear block lock-bits operation is aborted due to VPEN or VCC transitioning out of valid range,
block lock-bit values are left in an undetermined state. A repeat of clear block lock-bits is required
to initialize block lock-bit contents to known values.
4.15
Protection Register Program Command
The 3 Volt Intel StrataFlash memory includes a 128-bit protection register that can be used to
increase the security of a system design. For example, the number contained in the protection
register can be used to “mate” the flash component with other system components such as the CPU
or ASIC, preventing device substitution.
The 128-bits of the protection register are divided into two 64-bit segments. One of the segments is
programmed at the Intel factory with a unique 64-bit number, which is unchangeable. The other
segment is left blank for customer designers to program as desired. Once the customer segment is
programmed, it can be locked to prevent reprogramming.
4.15.1
Reading the Protection Register
The protection register is read in the identification read mode. The device is switched to this mode
by writing the Read Identifier command (90H). Once in this mode, read cycles from addresses
shown in Table 20 or Table 21 retrieve the specified information. To return to read array mode,
write the Read Array command (FFH).
4.15.2
Programming the Protection Register
The protection register bits are programmed using the two-cycle Protection Program command.
The 64-bit number is programmed 16 bits at a time for word-wide parts and eight bits at a time for
byte-wide parts. First write the Protection Program Setup command, C0H. The next write to the
Preliminary
27
28F128J3A, 28F640J3A, 28F320J3A
device will latch in address and data and program the specified location. The allowable addresses
are shown in Table 20 or Table 21. See Figure 14, “Protection Register Programming Flowchart”
on page 37
Any attempt to address Protection Program commands outside the defined protection register
address space will result in a status register error (program error bit SR.4 will be set to 1).
Attempting to program a locked protection register segment will result in a status register error
(program error bit SR.4 and lock error bit SR.1 will be set to 1).
4.15.3
Locking the Protection Register
The user-programmable segment of the protection register is lockable by programming Bit 1 of the
PR-LOCK location to 0. Bit 0 of this location is programmed to 0 at the Intel factory to protect the
unique device number. Bit 1 is set using the Protection Program command to program “FFFD” to
the PR-LOCK location. After these bits have been programmed, no further changes can be made to
the values stored in the protection register. Protection Program commands to a locked section will
result in a status register error (program error bit SR.4 and Lock Error bit SR.1 will be set to 1).
Protection register lockout state is not reversible.
Figure 6. Protection Register Memory Map
Word
Address
A[23 - 1]: 128 Mbit
A[22 - 1]: 64 Mbit
A[21 - 1]: 32 Mbit
88H
4 Words
User Programmed
85H
84H
4 Words
Factory Programmed
81H
80H
1 Word Lock
0667_06
NOTE: A0 is not used in x16 mode when accessing the protection register map (See Table 20 for x16
addressing). For x8 mode A0 is used (See Table 21 for x8 addressing).
28
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Table 20. Word-Wide Protection Register Addressing
Word
Use
A8
A7
A6
A5
A4
A3
A2
A1
LOCK
Both
1
0
0
0
0
0
0
0
0
Factory
1
0
0
0
0
0
0
1
1
Factory
1
0
0
0
0
0
1
0
2
Factory
1
0
0
0
0
0
1
1
3
Factory
1
0
0
0
0
1
0
0
4
User
1
0
0
0
0
1
0
1
5
User
1
0
0
0
0
1
1
0
6
User
1
0
0
0
0
1
1
1
7
User
1
0
0
0
1
0
0
0
NOTE: 1. All address lines not specified in the above table must be 0 when accessing the Protection Register,
i.e., A23–A9 = 0.
Table 21. Byte-Wide Protection Register Addressing
Byte
Use
A8
A7
A6
A5
A4
A3
A2
A1
LOCK
Both
1
0
0
0
0
0
0
0
LOCK
Both
1
0
0
0
0
0
0
0
0
Factory
1
0
0
0
0
0
0
1
1
Factory
1
0
0
0
0
0
0
1
2
Factory
1
0
0
0
0
0
1
0
3
Factory
1
0
0
0
0
0
1
0
4
Factory
1
0
0
0
0
0
1
1
5
Factory
1
0
0
0
0
0
1
1
6
Factory
1
0
0
0
0
1
0
0
7
Factory
1
0
0
0
0
1
0
0
8
User
1
0
0
0
0
1
0
1
9
User
1
0
0
0
0
1
0
1
A
User
1
0
0
0
0
1
1
0
B
User
1
0
0
0
0
1
1
0
C
User
1
0
0
0
0
1
1
1
D
User
1
0
0
0
0
1
1
1
E
User
1
0
0
0
1
0
0
0
F
User
1
0
0
0
1
0
0
0
NOTE: 1. All address lines not specified in the above table must be 0 when accessing the Protection Register,
i.e., A23–A9 = 0.
Preliminary
29
28F128J3A, 28F640J3A, 28F320J3A
Figure 7. Write to Buffer Flowchart
Start
Set Time-Out
Issue Write to Buffer
Command E8H, Block
Address
No
Command
Write
Write to Buffer
Read
Read Extended
Status Register
Standby
Comments
Data = E8H
Block Address
XSR. 7 = Valid
Addr = Block Address
Check XSR. 7
1 = Write Buffer Available
0 = Write Buffer Not Available
Write
(Note 1, 2)
Data = N = Word/Byte Count
N = 0 Corresponds to Count = 1
Addr = Block Address
Write
(Note 3, 4)
Data = Write Buffer Data
Addr = Device Start Address
Write Word or Byte
Count, Block Address
Write
(Note 5, 6)
Data = Write Buffer Data
Addr = Device Address
Write Buffer Data,
Start Address
Write
X=0
Read
(Note 7)
Status Register Data with the
Device Enabled, OE# Low
Updates SR
Addr = Block Address
Standby
Check SR.7
1 = WSM Ready
0 = WSM Busy
XSR.7 =
0
Write to
Buffer Time-Out?
1
Yes
Check
X = N?
No
Abort Write to
Buffer Command?
Yes
Bus
Operation
Yes
Yes
Write to Another
Block Address
No
Write to Buffer
Aborted
Write Next Buffer Data,
Device Address
X=X+1
Program Buffer to Flash
Confirm D0H
Another Write to
Buffer?
Issue Read
Status Command
No
Program Buffer
Data = D0H
to Flash
Addr = Block Address
Confirm
1. Byte or word count values on DQ0 - DQ7 are loaded into the
count register. Count ranges on this device for byte mode are N
= 00H to 1FH and for word mode are N = 0000H to 000FH.
2. The device now outputs the status register when read (XSR is
no longer available).
3. Write Buffer contents will be programmed at the device start
address or destination flash address.
4. Align the start address on a Write Buffer boundary for
maximum programming performance (i.e., A4 - A0 of the start
address = 0).
5. The device aborts the Write to Buffer command if the current
address is outside of the original block address.
6. The status register indicates an "improper command
sequence" if the Write to Buffer command is aborted. Follow this
with a Clear Status Register command.
7. Toggling OE# (low to high to low) updates the status register.
This can be done in place of issuing the Read Status Register
command.
Full status check can be done after all erase and write sequences
complete. Write FFH after the last operation to reset the device to
read array mode.
Read Status Register
1
0
SR.7 =
1
Full Status
Check if Desired
Programming
Complete
0606_07A
30
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Figure 8. Byte/Word Program Flowchart
Start
Write 40H,
Address
Write Data and
Address
Read Status
Register
Command
Comments
Write
Setup Byte/
Word Program
Data = 40H
Addr = Location to Be Programmed
Write
Byte/Word
Program
Data = Data to Be Programmed
Addr = Location to Be Programmed
Read
(Note 1)
Status Register Data
Standby
Check SR.7
1 = WSM Ready
0 = WSM Busy
1. Toggling OE# (low to high to low) updates the status register. This
can be done in place of issuing the Read Status Register command.
Repeat for subsequent programming operations.
0
SR.7 =
Bus
Operation
SR full status check can be done after each program operation, or
after a sequence of programming operations.
1
Full Status
Check if Desired
Write FFH after the last program operation to place device in read
array mode.
Byte/Word
Program Complete
FULL STATUS CHECK PROCEDURE
Bus
Operation
Read Status
Register Data
(See Above)
Check SR.3
1 = Programming to Voltage Error
Detect
Standby
Check SR.1
1 = Device Protect Detect
RP# = VIH, Block Lock-Bit Is Set
Only required for systems
implemeting lock-bit configuration.
Standby
Check SR.4
1 = Programming Error
Voltage Range Error
0
1
SR.1 =
Device Protect Error
0
1
SR.4 =
Programming Error
0
Byte/Word
Program
Successful
Preliminary
Comments
Standby
1
SR.3 =
Command
Toggling OE# (low to high to low) updates the status register. This can
be done in place of issuing the Read Status Register command.
Repeat for subsequent programming operations.
SR.4, SR.3 and SR.1 are only cleared by the Clear Status Register
command in cases where multiple locations are programmed before
full status is checked.
If an error is detected, clear the status register before attempting retry
or other error recovery.
31
28F128J3A, 28F640J3A, 28F320J3A
Figure 9. Program Suspend/Resume Flowchart
Start
Bus
Operation
Command
Write
Program
Suspend
Write B0H
0
Data = B0H
Addr = X
Status Register Data
Addr = X
Read
Read Status Register
Comments
Standby
Check SR.7
1 - WSM Ready
0 = WSM Busy
Standby
Check SR.6
1 = Programming Suspended
0 = Programming Completed
SR.7 =
Write
Read Array
Data = FFH
Addr = X
1
SR.2 =
Read array locations other
than that being programmed.
Read
0
Programming Completed
Write
Program
Resume
Data = D0H
Addr = X
1
Write FFH
Read Data Array
No
Done Reading
Yes
Write D0H
Write FFH
Programming Resumed
Read Array Data
0606_08
32
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Figure 10. Block Erase Flowchart
Start
Issue Single Block Erase
Command 20H, Block
Address
Bus
Operation
Command
Write
Erase Block
Write (Note 1)
Erase
Confirm
Read
Standby
Write Confirm D0H
Block Address
Comments
Data = 20H
Addr = Block Address
Data = D0H
Addr = X
Status register data
With the device enabled,
OE# low updates SR
Addr = X
Check SR.7
1 = WSM Ready
0 = WSM Busy
1. The Erase Confirm byte must follow Erase Setup.
This device does not support erase queuing. Please see
Application note AP-646 For software erase queuing
compatibility.
Read
Status Register
Full status check can be done after all erase and write
sequences complete. Write FFH after the last operation to
reset the device to read array mode.
No
Suspend
Erase Loop
SR.7 =
0
Suspend Erase
Yes
1
Full Status
Check if Desired
Erase Flash
Block(s) Complete
0606_09
Preliminary
33
28F128J3A, 28F640J3A, 28F320J3A
Figure 11. Block Erase Suspend/Resume Flowchart
Start
Bus
Operation
Command
Write
Erase Suspend
Write B0H
0
Data = B0H
Addr = X
Status Register Data
Addr = X
Read
Read Status Register
Comments
Standby
Check SR.7
1 - WSM Ready
0 = WSM Busy
Standby
Check SR.6
1 = Block Erase Suspended
0 = Block Erase Completed
SR.7 =
Write
Erase Resume
Data = D0H
Addr = X
1
0
SR.6 =
Block Erase Completed
1
Program
Read
Read or Program?
Read Array
Data
No
Program
Loop
Done?
Yes
Write D0H
Write FFH
Block Erase Resumed
Read Array Data
0606_10
34
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Figure 12. Set Block Lock-Bit Flowchart
Start
Write 60H,
Block Address
Write 01H,
Block Address
Bus
Operation
Command
Write
Set Block Lock-Bit
Setup
Data = 60H
Addr =Block Address
Write
Set Block Lock-Bit
Confirm
Data = 01H
Addr = Block Address
Read
Status Register Data
Read Status Register
Check SR.7
1 = WSM Ready
0 = WSM Busy
Standby
Repeat for subsequent lock-bit operations.
0
SR.7 =
Comments
Full status check can be done after each lock-bit set operation or after
a sequence of lock-bit set operations.
1
Write FFH after the last lock-bit set operation to place device in read
array mode.
Full Status
Check if Desired
Set Lock-Bit Complete
FULL STATUS CHECK PROCEDURE
Read Status Register
Data (See Above)
Bus
Operation
1
SR.3 =
1
SR.4,5 =
Command Sequence
Error
0
1
SR.4 =
0
Set Lock-Bit Error
Comments
Standby
Check SR.3
1 = Programming Voltage Error
Detect
Standby
Check SR.4, 5
Both 1 = Command Sequence
Error
Standby
Check SR.4
1 = Set Lock-Bit Error
Voltage Range Error
0
Command
SR.5, SR.4 and SR.3 are only cleared by the Clear Status Register
command, in cases where multiple lock-bits are set before full status is
checked.
If an error is detected, clear the status register before attempting retry
or other error recovery.
Set Lock-Bit
Successful
0606_11b
Preliminary
35
28F128J3A, 28F640J3A, 28F320J3A
Figure 13. Clear Lock-Bit Flowchart
Start
Write 60H
Bus
Operation
Command
Write
Clear Block
Lock-Bits Setup
Data = 60H
Addr = X
Write
Clear Block or
Lock-Bits Confirm
Data = D0H
Addr = X
Write D0H
Read
Status Register Data
Read Status Register
Check SR.7
1 = WSM Ready
0 = WSM Busy
Standby
0
SR.7 =
Comments
Write FFH after the clear lock-bits operation to place device in read
array mode.
1
Full Status
Check if Desired
Clear Block Lock-Bits
Complete
FULL STATUS CHECK PROCEDURE
Bus
Operation
Read Status Register
Data (See Above)
1
SR.3 =
Check SR.3
1 = Programming Voltage Error
Detect
Standby
Check SR.4, 5
Both 1 = Command Sequence
Error
Standby
Check SR.5
1 = Clear Block Lock-Bits Error
0
1
Command Sequence
Error
0
1
SR.5 =
Comments
Standby
Voltage Range Error
SR.4,5 =
Command
SR.5, SR.4, and SR.3 are only cleared by the Clear Status Register
command.
Clear Block Lock-Bits
Error
If an error is detected, clear the status register before attempting retry
or other error recovery.
0
Clear Block Lock-Bits
Successful
0606_12b
36
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Figure 14. Protection Register Programming Flowchart
Start
Bus Operation
Command
Write C0H
(Protection Reg.
Program Setup)
Write
Protection Program
Setup
Data = C0H
Write
Protection Program
Data = Data to Program
Addr = Location to Program
Write Protect. Register
Address/Data
Read
Status Register Data Toggle
CE# or OE# to Update Status
Register Data
Check SR.7
1 = WSM Ready
0 = WSM Busy
Standby
Read Status Register
Protection Program operations can only be addressed within the protection
register address space. Addresses outside the defined space will return an
error.
No
SR.7 = 1?
Comments
Repeat for subsequent programming operations.
Yes
SR Full Status Check can be done after each program or after a sequence of
program operations.
Full Status
Check if Desired
Write FFH after the last program operation to reset device to read array mode.
Program Complete
FULL STATUS CHECK PROCEDURE
Bus Operation
Read Status Register
Data (See Above)
VPEN Range Error
0,1
SR.1, SR.4 =
Protection Register
Programming Error
Comments
Standby
SR.1 SR.3 SR.4
0
1
1
VPEN Low
Standby
0
0
1
Prot. Reg.
Prog. Error
1
0
1
Register
Locked:
Aborted
1, 1
SR.3, SR.4 =
Command
Standby
SR.3 MUST be cleared, if set during a program attempt, before further
attempts are allowed by the Write State Machine.
1,1
SR.1, SR.4 =
Program Successful
Preliminary
Attempted Program to
Locked Register Aborted
SR.1, SR.3 and SR.4 are only cleared by the Clear Staus Register Command,
in cases of multiple protection register program operations before full status is
checked.
If an error is detected, clear the status register before attempting retry or other
error recovery.
37
28F128J3A, 28F640J3A, 28F320J3A
5.0
Design Considerations
5.1
Three-Line Output Control
The device will often be used in large memory arrays. Intel provides five control inputs (CE0, CE1,
CE2, OE#, and RP#) to accommodate multiple memory connections. This control provides for:
a. Lowest possible memory power dissipation.
b. Complete assurance that data bus contention will not occur.
To use these control inputs efficiently, an address decoder should enable the device (see Table 2)
while OE# should be connected to all memory devices and the system’s READ# control line. This
assures that only selected memory devices have active outputs while de-selected memory devices
are in standby mode. RP# should be connected to the system POWERGOOD signal to prevent
unintended writes during system power transitions. POWERGOOD should also toggle during
system reset.
5.2
STS and Block Erase, Program, and Lock-Bit Configuration
Polling
STS is an open drain output that should be connected to VCCQ by a pull-up resistor to provide a
hardware method of detecting block erase, program, and lock-bit configuration completion. It is
recommended that a 2.5k resister be used between STS# and VCCQ. In default mode, it transitions
low after block erase, program, or lock-bit configuration commands and returns to High Z when
the WSM has finished executing the internal algorithm. For alternate configurations of the STS
pin, see the Configuration command.
STS can be connected to an interrupt input of the system CPU or controller. It is active at all times.
STS, in default mode, is also High Z when the device is in block erase suspend (with programming
inactive), program suspend, or in reset/power-down mode.
5.3
Power Supply Decoupling
Flash memory power switching characteristics require careful device decoupling. System designers
are interested in three supply current issues; standby current levels, active current levels and
transient peaks produced by falling and rising edges of CE0, CE1, CE2, and OE#. Transient current
magnitudes depend on the device outputs’ capacitive and inductive loading. Two-line control and
proper decoupling capacitor selection will suppress transient voltage peaks. Since Intel StrataFlash
memory devices draw their power from three VCC pins (these devices do not include a VPP pin), it
is recommended that systems without separate power and ground planes attach a 0.1 µF ceramic
capacitor between each of the device’s three VCC pins (this includes VCCQ) and ground. These
high-frequency, low-inductance capacitors should be placed as close as possible to package leads
on each Intel StrataFlash memory device. Each device should have a 0.1 µF ceramic capacitor
connected between its VCC and GND. These high-frequency, low inductance capacitors should be
placed as close as possible to package leads. Additionally, for every eight devices, a 4.7 µF
electrolytic capacitor should be placed between VCC and GND at the array’s power supply
connection. The bulk capacitor will overcome voltage slumps caused by PC board trace
inductance.
38
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
5.4
Input Signal Transitions - Reducing Overshoots and
Undershoots When Using Buffers or Transceivers
As faster, high-drive devices such as transceivers or buffers drive input signals to flash memory
devices, overshoots and undershoots can sometimes cause input signals to exceed flash memory
specifications. (See “Absolute Maximum Ratings” on page 40.) Many buffer/transceiver vendors
now carry bus-interface devices with internal output-damping resistors or reduced-drive outputs.
Internal output-damping resistors diminish the nominal output drive currents, while still leaving
sufficient drive capability for most applications. These internal output-damping resistors help
reduce unnecessary overshoots and undershoots. Transceivers or buffers with balanced- or lightdrive outputs also reduce overshoots and undershoots by diminishing output-drive currents. When
considering a buffer/transceiver interface design to flash, devices with internal output-damping
resistors or reduced-drive outputs should be used to minimize overshoots and undershoots. For
additional information, please refer to the AP-647 5 Volt Intel StrataFlash™ Memory Design
Guide.
5.5
VCC, VPEN, RP# Transitions
Block erase, program, and lock-bit configuration are not guaranteed if VPEN or VCC falls outside of
the specified operating ranges, or RP# ≠ VIH. If RP# transitions to VIL during block erase,
program, or lock-bit configuration, STS (in default mode) will remain low for a maximum time of
tPLPH + tPHRH until the reset operation is complete. Then, the operation will abort and the device
will enter reset/power-down mode. The aborted operation may leave data partially corrupted after
programming, or partially altered after an erase or lock-bit configuration. Therefore, block erase
and lock-bit configuration commands must be repeated after normal operation is restored. Device
power-off or RP# = VIL clears the status register.
The CUI latches commands issued by system software and is not altered by VPEN, CE0, CE1, or
CE2 transitions, or WSM actions. Its state is read array mode upon power-up, after exit from reset/
power-down mode, or after VCC transitions below VLKO. VCC must be kept at or above VPEN
during VCC transitions.
After block erase, program, or lock-bit configuration, even after VPEN transitions down to VPENLK,
the CUI must be placed in read array mode via the Read Array command if subsequent access to
the memory array is desired. VPEN must be kept at or below VCC during VPEN transitions.
5.6
Power-Up/Down Protection
The device is designed to offer protection against accidental block erasure, programming, or lockbit configuration during power transitions. Internal circuitry resets the CUI to read array mode at
power-up.
A system designer must guard against spurious writes for VCC voltages above VLKO when VPEN is
active. Since WE# must be low and the device enabled (see Table 2) for a command write, driving
WE# to VIH or disabling the device will inhibit writes. The CUI’s two-step command sequence
architecture provides added protection against data alteration.
Keeping VPEN below VPENLK prevents inadvertent data alteration. In-system block lock and
unlock capability protects the device against inadvertent programming. The device is disabled
while RP# = VIL regardless of its control inputs.
Preliminary
39
28F128J3A, 28F640J3A, 28F320J3A
5.7
Power Dissipation
When designing portable systems, designers must consider battery power consumption not only
during device operation, but also for data retention during system idle time. Flash memory’s
nonvolatility increases usable battery life because data is retained when system power is removed.
6.0
Electrical Specifications
6.1
Absolute Maximum Ratings
Parameter
Temperature under Bias Expanded
Maximum Rating
–25 °C to +85 °C
Storage Temperature
–65 °C to +125 °C
Voltage On Any Pin
–2.0 V to +5.0 V(1)
Output Short Circuit Current
100 mA(2)
NOTES:
1. All specified voltages are with respect to GND. Minimum DC voltage is –0.5 V on input/output pins and
–0.2 V on VCC and VPEN pins. During transitions, this level may undershoot to –2.0 V for periods <20 ns.
Maximum DC voltage on input/output pins, VCC, and VPEN is VCC +0.5 V which, during transitions, may
overshoot to VCC +2.0 V for periods <20 ns.
2. Output shorted for no more than one second. No more than one output shorted at a time.
NOTICE: This datasheet contains preliminary information on new products in production. The specifications are
subject to change without notice. Verify with your local Intel Sales office that you have the latest datasheet before
finalizing a design.
Warning:
40
Stressing the device beyond the “Absolute Maximum Ratings” may cause permanent damage.
These are stress ratings only. Operation beyond the “Operating Conditions” is not recommended
and extended exposure beyond the “Operating Conditions” may affect device reliability.
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
6.2
Operating Conditions
Table 22. Temperature and VCC Operating Conditions
Symbol
Parameter
Notes
Min
Max
Unit
TA
Operating Temperature
–25
+85
°C
VCC1
VCC1 Supply Voltage (2.7 V−3.6 V)
2.70
3.60
V
VCC2
VCC2 Supply Voltage (3.0 V−3.6 V)
3.00
3.60
V
VCCQ1
VCCQ1 Supply Voltage (2.7 V−3.6 V)
2.70
3.60
V
VCCQ2
VCCQ2 Supply Voltage (3.0 V−3.6 V)
3.00
3.60
V
6.3
Test Condition
Ambient Temperature
Capacitance
TA = +25 °C, f = 1 MHz
Symbol
Parameter(1)
Typ
Max
Unit
Condition
CIN
Input Capacitance
6
8
pF
VIN = 0.0 V
COUT
Output Capacitance
8
12
pF
VOUT = 0.0 V
NOTES:
1. Sampled, not 100% tested.
Preliminary
41
28F128J3A, 28F640J3A, 28F320J3A
6.4
Symbol
DC Characteristics
Parameter
Notes
Typ
Max
Unit
Test Conditions
ILI
Input and VPEN Load Current
1
±1
µA
VCC = VCC Max; VCCQ = VCCQ Max
VIN = VCCQ or GND
ILO
Output Leakage Current
1
±10
µA
VCC = VCC Max; VCCQ = VCCQ Max
VIN = VCCQ or GND
ILO
Output Leakage Current
1
±10
µA
VCC = VCC Max; VCCQ = VCCQ Max
VIN = VCCQ or GND
ICCS
ICCD
VCC Standby Current
VCC Power-Down Current
50
120
µA
CMOS Inputs, VCC = VCC Max,
Device is enabled (see Table 2, “Chip
Enable Truth Table” on page 7),
RP# = VCCQ ± 0.2 V
0.71
2
mA
TTL Inputs, VCC = VCC Max,
Device is enabled (see Table 2), RP# = VIH
50
120
µA
RP# = GND ± 0.2 V, IOUT (STS) = 0 mA
mA
CMOS Inputs, VCC = VCC Max, VCCQ =
VCCQ Max using standard 4 word page
mode reads.
1,2,3,4
4
15
ICCR
VCC Page Mode Read Current
20
Device is enabled (see Table 2)
f = 5 MHz, IOUT = 0 mA
1,3,4
24
29
mA
CMOS Inputs,VCC = VCC Max, VCCQ = VCCQ
Max using standard 4 word page mode
reads.
Device is enabled (see Table 2)
f = 33 MHz, IOUT = 0 mA
ICCR
VCC Byte Mode Read Current
1,3,4
40
50
mA
CMOS Inputs, VCC = VCC Max, VCCQ =
VCCQ Max using standard word/byte single
reads
Device is enabled (see Table 2)
f = 5 MHz, IOUT = 0 mA
ICCW
VCC Program or Set Lock-Bit
Current
1,4,5
ICCE
VCC Block Erase or Clear Block
Lock-Bits Current
1,4,5
ICCWS
ICCES
VCC Program Suspend or Block
Erase Suspend Current
1,4,6
42
35
60
mA
CMOS Inputs, VPEN = VCC
40
70
mA
TTL Inputs, VPEN = VCC
35
70
mA
CMOS Inputs, VPEN = VCC
40
80
mA
TTL Inputs, VPEN = VCC
10
mA
Device is disabled (see Table 2)
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
DC Characteristics, Continued
Symbol
Parameter
Notes
Min
Max
Unit
Test Conditions
VIL
Input Low Voltage
5
–0.5
0.8
V
VIH
Input High Voltage
5
2.0
VCCQ + 0.5
V
0.4
V
VCCQ = VCCQ2/3 Min
IOL = 2 mA
0.2
V
VCCQ = VCCQ2/3 Min
IOL = 100 µA
0.85 ×
VCCQ
V
VCCQ = VCCQ Min
IOH = –2.5 mA
VCCQ – 0.2
V
VCCQ = VCCQ Min
IOH = –100 µA
VOL
Output Low Voltage
VOH
2,5
Output High Voltage
2,5
VPENLK
VPEN Lockout during Program,
Erase and Lock-Bit Operations
VPENH
VPEN during Block Erase,
Program, or Lock-Bit Operations
VLKO
VCC Lockout Voltage
5,7,8
7,8
2.7
9
2.0
2.0
V
3.6
V
V
NOTES:
1. All currents are in RMS unless otherwise noted. These currents are valid for all product versions (packages
and speeds). Contact Intel’s Application Support Hotline or your local sales office for information about typical
specifications.
2. Includes STS.
3. CMOS inputs are either VCC ± 0.2 V or GND ± 0.2 V. TTL inputs are either VIL or VIH.
4. Current values are specified over the temperature range (0 °C to 70 °C) and may increase slightly at –25 °C.
5. Sampled, not 100% tested.
6. ICCWS and ICCES are specified with the device de-selected. If the device is read or written while in erase
suspend mode, the device’s current draw is ICCR or ICCW.
7. Block erases, programming, and lock-bit configurations are inhibited when VPEN ≤ VPENLK, and not
guaranteed in the range between VPENLK (max) and VPENH (min), and above VPENH (max).
8. Typically, VPEN is connected to VCC (2.7 V–3.6 V).
9. Block erases, programming, and lock-bit configurations are inhibited when VCC < VLKO, and not guaranteed
in the range between VLKO (min) and VCC (min), and above VCC (max).
Figure 15. Transient Input/Output Reference Waveform for VCCQ = 3.0 V–3.6 V or
VCCQ = 2.7 V–3.6 V
VCCQ
Input
VCCQ/2
Test Points
VCCQ/2
Output
0.0
NOTE: AC test inputs are driven at VCCQ for a Logic "1" and 0.0 V for a Logic "0." Input timing begins, and
output timing ends, at VCCQ/2 V (50% of VCCQ). Input rise and fall times (10% to 90%) < 5 ns.
Preliminary
43
28F128J3A, 28F640J3A, 28F320J3A
Figure 16. Transient Equivalent Testing Load Circuit
1.3V
1N914
RL = 3.3 kΩ
Device
Under Test
Out
CL
NOTE: CL Includes Jig Capacitance
Test Configuration
44
CL (pF)
VCCQ = VCC = 3.0 V−3.6 V
30
VCCQ = VCC = 2.7 V−3.6 V
30
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
AC Characteristics— Read-Only Operations(1,2)
6.5
Versions
(All units in ns unless otherwise noted)
#
Sym
VCC
3.0 V–3.6 V (3)
2.7 V–3.6 V (3)
VCCQ
3.0 V–3.6 V (3)
2.7 V–3.6 V (3)
Min
Min
Parameter
Notes
32 Mbit
R1
R2
Read/Write Cycle Time
tAVAV
tAVQV
Address to Output Delay
110
R4
R5
tELQV
CEX to Output Delay
tGLQV
64 Mbit
120
120
150
150
32 Mbit
110
110
64 Mbit
120
120
150
150
32 Mbit
2
110
110
64 Mbit
2
120
120
128 Mbit
2
150
150
OE# to Non-Array Output Delay
RP# High to Output Delay
tPHQV
Max
110
128 Mbit
128 Mbit
R3
Max
50
50
32 Mbit
2, 4
150
150
64 Mbit
180
180
128 Mbit
210
210
R6
tELQX
CEX to Output in Low Z
5
0
0
R7
tGLQX
OE# to Output in Low Z
5
0
0
R8
tEHQZ
CEX High to Output in High Z
5
55
55
R9
tGHQZ
OE# High to Output in High Z
5
15
15
R10
tOH
Output Hold from Address, CEX, or OE# Change,
Whichever Occurs First
5
R11
tELFL/tELFH
CEX Low to BYTE# High or Low
5
R12
tFLQV/tFHQV
BYTE# to Output Delay
R13
tFLQZ
BYTE# to Output in High Z
5
R14
tEHEL
CEx High to CEx Low
5
R15
tAPA
Page Address Access Time
5, 6
25
30
R16
tGLQV
OE# to Array Output Delay
4
25
30
0
0
10
10
1000
1000
1000
1000
0
0
NOTES:
CEX low is defined as the first edge of CE0, CE1, or CE2 that enables the device. CEX high is defined at the first edge of CE0,
CE1, or CE2 that disables the device (see Table 2).
1. See AC Input/Output Reference Waveforms for the maximum allowable input slew rate.
2. OE# may be delayed up to tELQV-tGLQV after the first edge of CE0, CE1, or CE2 that enables the device (see
Table 2) without impact on tELQV.
3. See Figures 14–16, Transient Input/Output Reference Waveform for VCCQ = 3.0 V –3.6 V or VCCQ = 2.7 V –
3.6 V, and Transient Equivalent Testing Load Circuit for testing characteristics.
4. When reading the flash array a faster tGLQV (R16) applies. Non-array reads refer to status register reads,
query reads, or device identifier reads.
5. Sampled, not 100% tested.
6. For devices configured to standard word/byte read mode, R15 (tAPA) will equal R2 (tAVQV).
Preliminary
45
28F128J3A, 28F640J3A, 28F320J3A
Figure 17. AC Waveform for Both Page-Mode and Standard Word/Byte Read Operations
VIH
ADDRESSES [A23-A3]
VIL
R1
VIH
ADDRESSES [A2-A0]
Valid
Address
VIL
Valid
Valid
Address Address
Valid
Address
R14
Disabled (VIH)
CEX [E]
Enabled (VIL)
OE# [G]
VIL
WE# [W]
DATA [D/Q] VOH
VCC
R9
R3
VIH
VIL
DQ0-DQ15
R8
R2
VIH
R4 or R16
R15
R5
High Z
R6
VOL
Valid
Output
Valid
Output
R10
Valid
Output
Valid
Output
High Z
R7
VIH
VIL
VIH
RP# [P]
VIL
R11
R12
R13
VIH
BYTE# [F]
VIL
0606_16
NOTE: CEX low is defined as the first edge of CE0, CE1, or CE2 that enables the device. CEX high is defined at
the first edge of CE0, CE1, or CE2 that disables the device (see Table 2).
For standard word/byte read operations, R15 (tAPA) will equal R2 (tAVQV).
When reading the flash array a faster tGLQV (R16) applies. Non-array reads refer to status register
reads, query reads, or device identifier reads.
46
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
AC Characteristics— Write Operations(1,2)
6.6
Valid for All
Speeds
Versions
#
Symbol
Parameter
Notes
Min
Unit
Max
W1
tPHWL (tPHEL)
RP# High Recovery to WE# (CEX) Going Low
3
1
µs
W2
tELWL (tWLEL)
CEX (WE#) Low to WE# (CEX) Going Low
4
0
ns
W3
tWP
Write Pulse Width
4
70
ns
W4
tDVWH (tDVEH)
Data Setup to WE# (CEX) Going High
5
50
ns
W5
tAVWH (tAVEH)
Address Setup to WE# (CEX) Going High
5
55
ns
W6
tWHEH (tEHWH)
CEX (WE#) Hold from WE# (CEX) High
10
ns
W7
tWHDX (tEHDX)
Data Hold from WE# (CEX) High
0
ns
W8
tWHAX (tEHAX)
Address Hold from WE# (CEX) High
0
ns
W9
tWPH
Write Pulse Width High
6
30
ns
W11
tVPWH (tVPEH)
VPEN Setup to WE# (CEX) Going High
3
0
ns
W12
tWHGL (tEHGL)
Write Recovery before Read
7
35
ns
W13
tWHRL (tEHRL)
WE# (CEX) High to STS Going Low
W15
tQVVL
VPEN Hold from Valid SRD, STS Going High
8
3,8,9
500
0
ns
ns
NOTES:
CEX low is defined as the first edge of CE0, CE1, or CE2 that enables the device. CEX high is defined at the first edge of CE0,
CE1, or CE2 that disables the device (see Table 2).
1. Read timing characteristics during block erase, program, and lock-bit configuration operations are the same
as during read-only operations. Refer to AC Characteristics–Read-Only Operations.
2. A write operation can be initiated and terminated with either CEX or WE#.
3. Sampled, not 100% tested.
4. Write pulse width (tWP) is defined from CEX or WE# going low (whichever goes low first) to CEX or WE# going
high (whichever goes high first). Hence, tWP = tWLWH = tELEH = tWLEH = tELWH. If CEX is driven low 10 ns
before WE# going low, WE# pulse width requirement decreases to tWP - 10 ns.
5. Refer to Table 4 for valid AIN and DIN for block erase, program, or lock-bit configuration.
6. Write pulse width high (tWPH) is defined from CEX or WE# going high (whichever goes high first) to CEX or
WE# going low (whichever goes low first). Hence, tWPH = tWHWL = tEHEL = tWHEL = tEHWL.
7. For array access, tAVQV is required in addition to tWHGL for any accesses after a write.
8. STS timings are based on STS configured in its RY/BY# default mode.
9. VPEN should be held at VPENH until determination of block erase, program, or lock-bit configuration success
(SR.1/3/4/5 = 0).
Preliminary
47
28F128J3A, 28F640J3A, 28F320J3A
6.7
Block Erase, Program, and Lock-Bit Configuration
Performance(1,2,3)
#
Sym
Notes
Typ
Max
Unit
4,5,6,7
218
654
µs
Byte Program Time (Using Word/Byte Program
Command)
4
210
630
µs
Block Program Time (Using Write to Buffer Command)
4
0.8
2.4
sec
Write Buffer Byte Program Time
(Time to Program 32 bytes/16 words)
W16
W16
Parameter
tWHQV3
tEHQV3
W16
tWHQV4
tEHQV4
Block Erase Time
4
1.0
5.0
sec
W16
tWHQV5
tEHQV5
Set Lock-Bit Time
4
64
75
µs
W16
tWHQV6
tEHQV6
Clear Block Lock-Bits Time
4
0.5
0.70
sec
W16
tWHRH1
tEHRH1
Program Suspend Latency Time to Read
25
75
µs
W16
tWHRH
tEHRH
Erase Suspend Latency Time to Read
26
35
µs
NOTES:
1. Typical values measured at TA = +25 °C and nominal voltages. Assumes corresponding lock-bits are not set.
Subject to change based on device characterization.
2. These performance numbers are valid for all speed versions.
3. Sampled but not 100% tested.
4. Excludes system-level overhead.
5. These values are valid when the buffer is full, and the start address is aligned on a 32-byte boundary.
6. Effective per-byte program time (tWHQV1, tEHQV1) is 6.8 µs/byte (typical)
7. Effective per-word program time (tWHQV2, tEHQV2) is 13.6 µs/word (typical)
8. Max values are measured at worst case temperature and VCC corner after 100k cycles
48
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
Figure 18. AC Waveform for Write Operations
A
ADDRESSES [A]
VIH
VIL
B
C
AIN
AIN
W5
Disabled (VIH)
CEX, (WE#) [E(W)]
Enabled (VIL)
VIL
W6
W2
VIH
W16
W3
W4
DATA [D/Q]
F
W12
W9
Disabled (VIH)
WE#, (CEX) [W(E)]
Enabled (VIL)
E
W8
W1
VIH
OE# [G]
D
High Z
VIL
W7
DIN
Valid
SRD
DIN
DIN
W13
VOH
STS [R]
RP# [P]
VOL
VIH
VIL
W11
W15
VPENH
VPENLK
VPEN [V]
VIL
0606_17
NOTES:
CEX low is defined as the first edge of CE0, CE1, or CE2 that enables the device. CEX high is defined at the first edge of CE0,
CE1, or CE2 that disables the device (see Table 2).
STS is shown in its default mode (RY/BY#).
a.
b.
c.
d.
e.
f.
Preliminary
VCC power-up and standby.
Write block erase, write buffer, or program setup.
Write block erase or write buffer confirm, or valid address and data.
Automated erase delay.
Read status register or query data.
Write Read Array command.
49
28F128J3A, 28F640J3A, 28F320J3A
Figure 19. AC Waveform for Reset Operation
STS (R)
VIH
VIL
P2
RP# (P)
VIH
VIL
P1
0606_18
NOTE: STS is shown in its default mode (RY/BY#).
Reset Specifications(1)
#
Sym
Parameter
Notes
Min
35
P1
tPLPH
RP# Pulse Low Time
(If RP# is tied to VCC, this specification is not
applicable)
2
P2
tPHRH
RP# High to Reset during Block Erase, Program, or
Lock-Bit Configuration
3
Max
Unit
µs
100
ns
NOTES:
1. These specifications are valid for all product versions (packages and speeds).
2. If RP# is asserted while a block erase, program, or lock-bit configuration operation is not executing then the
minimum required RP# Pulse Low Time is 100 ns.
3. A reset time, tPHQV, is required from the latter of STS (in RY/BY# mode) or RP# going high until outputs are
valid.
50
Preliminary
28F128J3A, 28F640J3A, 28F320J3A
7.0
Ordering Information
RC2 8 F 1 2 8 J 3 A - 1 5 0
Package
E = 56-Lead TSOP
RC = 64-Ball Easy BGA
Product line designator
for all Intel® Flash
products
Device Density
128 = x8/x16 (128 Mbit)
640 = x8/x16 (64 Mbit)
320 = x8/x16 (32 Mbit)
Access Speed (ns)1
128 Mbit = 150
64 Mbit = 120
32 Mbit = 110
Intel® 0.25 micron
ETOX™ VI Process
Technology
Voltage (VCC/VPEN)
3 = 3 V/3 V
Product Family
J = Intel® StrataFlashTM memory,
2 bits-per-cell
NOTE:
1. These speeds are for either the standard asynchronous read access times or for the first access of a pagemode read sequence.
VALID COMBINATIONS
Preliminary
56-Lead TSOP
64-Ball Easy BGA
E28F128J3A-150
RC28F128J3A-150
E28F640J3A-120
RC28F640J3A-120
E28F320J3A-110
RC28F320J3A-110
51
28F128J3A, 28F640J3A, 28F320J3A
8.0
Additional Information
Order Number
Document/Tool
298130
3 Volt Intel StrataFlash™ Memory 28F128J3A, 28F640J3A, 320J3A
Specification Update
290668
Intel® Persistent Storage Manager datasheet
292237
AP-689 Using Intel® Persistent Storage Manager
Note 3
AP-707 3 Volt Intel® StrataFlash™ Memory CPU Interface Design Guide
290606
5 Volt Intel® StrataFlash™ MemoryI28F320J5 and 28F640J5 datasheet
290608
3 Volt FlashFile™ Memory; 28F160S3 and 28F320S3 datasheet
290609
5 Volt FlashFile™ Memory; 28F160S5 and 28F320S5 datasheet
290429
5 Volt FlashFile™ Memory; 28F008SA datasheet
290598
3 Volt FlashFile™ Memory; 28F004S3, 28F008S3, 28F016S3 datasheet
290597
5 Volt FlashFile™ Memory; 28F004S5, 28F008S5, 28F016S5 datasheet
297859
AP-677 Intel® StrataFlash™ Memory Technology
292222
AP-664 Designing Intel® StrataFlash™ Memory into Intel® Architecture
292221
AP-663 Using the Intel® StrataFlash™ Memory Write Buffer
292218
AP-660 Migration Guide to 3 Volt Intel® StrataFlash™ Memory
292205
AP-647 5 Volt Intel® StrataFlash™ Memory Design Guide
292204
AP-646 Common Flash Interface (CFI) and Command Sets
292202
AP-644 Migration Guide to 5 Volt Intel® StrataFlash™ Memory
298161
Intel® Flash Memory Chip Scale Package User’s Guide
Note 4
Preliminary Mechanical Specification for Easy BGA Package
®
NOTE:
1. Please call the Intel Literature Center at (800) 548-4725 to request Intel documentation. International
customers should contact their local Intel or distribution sales office.
2. Visit Intel’s World Wide Web home page at http://www.intel.com for technical documentation and tools.
3. For the most current information on Intel StrataFlash memory, visit our website at http://developer.intel.com/
design/flash/isf.
4. This document is available on the web at http://developer.intel.com/design/flcomp/packdata/298049.htm.
52
Preliminary