FUJITSU MBM29LV400TC-90

FUJITSU SEMICONDUCTOR
DATA SHEET
DS05-20862-3E
FLASH MEMORY
CMOS
4M (512K × 8/256K × 16) BIT
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ FEATURES
• Single 3.0 V read, program, and erase
Minimizes system level power requirements
• Compatible with JEDEC-standard commands
Uses same software commands as E2PROMs
• Compatible with JEDEC-standard world-wide pinouts
48-pin TSOP(I) (Package suffix: PFTN – Normal Bend Type, PFTR – Reversed Bend Type)
44-pin SOP (Package suffix: PF)
48-pin CSOP (Package suffix: PCV)
48-ball FBGA (Package suffix: PBT)
• Minimum 100,000 program/erase cycles
• High performance
70 ns maximum access time
• Sector erase architecture
One 8K word, two 4K words, one 16K word, and seven 32K words sectors in word mode
One 16K byte, two 8K bytes, one 32K byte, and seven 64K bytes sectors in byte mode
Any combination of sectors can be concurrently erased. Also supports full chip erase
• Boot Code Sector Architecture
T = Top sector
B = Bottom sector
• Embedded EraseTM Algorithms
Automatically preprograms and erases the chip or any sector
• Embedded ProgramTM Algorithms
Automatically writes and verifies data at specified address
• Data Polling and Toggle Bit feature for detection of program or erase cycle completion
• Ready/Busy output (RY/BY)
Hardware method for detection of program or erase cycle completion
• Automatic sleep mode
When addresses remain stable, automatically switch themselves to low power mode
• Low VCC write inhibit ≤ 2.5 V
• Erase Suspend/Resume
Suspends the erase operation to allow a read in another sector within the same device
(Continued)
Embedded EraseTM and Embedded ProgramTM are trademarks of Advanced Micro Devices, Inc.
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
(Continued)
• Sector protection
Hardware method disables any combination of sectors from program or erase operations
• Sector Protection set function by Extended sector Protect command
• Temporary sector unprotection
Temporary sector unprotection via the RESET pin
■ PACKAGES
48-pin plastic TSOP (I)
48-pin plastic TSOP (I)
Marking Side
Marking Side
(FPT-48P-M19)
(FPT-48P-M20)
44-pin plastic SOP
48-pin plastic CSOP
Marking Side
(FPT-44P-M16)
48-pin plastic FBGA
(BGA-48P-M01)
2
(LCC-48P-M03)
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ GENERAL DESCRIPTION
The MBM29LV400TC/BC are a 8M-bit, 3.0 V-only Flash memory organized as 512K bytes of 8 bits each or 256K
words of 16 bits each. The MBM29LV400TC/BC are offered in a 48-pin TSOP(I), 44-pin SOP, 48-pin CSOP, and
48-ball FBGA packages. These devices are designed to be programmed in-system with the standard system
3.0 V VCC supply. 12.0 V VPP and 5.0 V VCC are not required for write or erase operations. The devices can also
be reprogrammed in standard EPROM programmers.
The standard MBM29LV400TC/BC offer access times 70 ns and 120 ns, allowing operation of high-speed
microprocessors without wait states. To eliminate bus contention the devices have separate chip enable (CE),
write enable (WE), and output enable (OE) controls.
The MBM29LV400TC/BC are pin and command set compatible with JEDEC standard E2PROMs. Commands
are written to the command register using standard microprocessor write timings. Register contents serve as
input to an internal state-machine which controls the erase and programming circuitry. Write cycles also internally
latch addresses and data needed for the programming and erase operations. Reading data out of the devices
is similar to reading from 5.0 V and 12.0 V Flash or EPROM devices.
The MBM29LV400TC/BC are programmed by executing the program command sequence. This will invoke the
Embedded Program Algorithm which is an internal algorithm that automatically times the program pulse widths
and verifies proper cell margin. Typically, each sector can be programmed and verified in about 0.5 seconds.
Erase is accomplished by executing the erase command sequence. This will invoke the Embedded Erase
Algorithm which is an internal algorithm that automatically preprograms the array if it is not already programmed
before executing the erase operation. During erase, the devices automatically time the erase pulse widths and
verify proper cell margin.
A sector is typically erased and verified in 1.0 second. (If already completely preprogrammed.)
The devices also feature a sector erase architecture. The sector mode allows each sector to be erased and
reprogrammed without affecting other sectors. The MBM29LV400TC/BC are erased when shipped from the
factory.
The devices feature single 3.0 V power supply operation for both read and write functions. Internally generated
and regulated voltages are provided for the program and erase operations. A low VCC detector automatically
inhibits write operations on the loss of power. The end of program or erase is detected by Data Polling of DQ7,
by the Toggle Bit feature on DQ6, or the RY/BY output pin. Once the end of a program or erase cycle has been
completed, the devices internally reset to the read mode.
Fujitsu’s Flash technology combines years of EPROM and E2PROM experience to produce the highest levels
of quality, reliability, and cost effectiveness. The MBM29LV400TC/BC memories electrically erase the entire chip
or all bits within a sector simultaneously via Fowler-Nordhiem tunneling. The bytes/words are programmed one
byte/word at a time using the EPROM programming mechanism of hot electron injection.
3
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ FLEXIBLE SECTOR-ERASE ARCHITECTURE
• One 16K byte, two 8K bytes, one 32K byte, and seven 64K bytes.
• Individual-sector, multiple-sector, or bulk-erase capability.
• Individual or multiple-sector protection is user definable.
(×8)
(×16)
7FFFFH 3FFFFH
16K byte
(×16)
7FFFFH
3FFFFH
6FFFFH
37FFFH
5FFFFH
2FFFFH
4FFFFH
27FFFH
3FFFFH
1FFFFH
2FFFFH
17FFFH
1FFFFH
0FFFFH
0FFFFH
07FFFH
07FFFH
03FFFH
05FFFH
02FFFH
03FFFH
01FFFH
00000H
00000H
64K byte
7BFFFH 3DFFFH
8K byte
64K byte
79FFFH
3CFFFH
8K byte
64K byte
77FFFH
3BFFFH
32K byte
64K byte
6FFFFH 37FFFH
64K byte
64K byte
5FFFFH 2FFFFH
64K byte
64K byte
4FFFFH 27FFFH
64K byte
64K byte
3FFFFH 1FFFFH
64K byte
32K byte
2FFFFH 17FFFH
64K byte
8K byte
1FFFFH 0FFFFH
64K byte
8K byte
0FFFFH 07FFFH
64K byte
16K byte
00000H
00000H
MBM29LV400TC Sector Architecture
4
(×8)
MBM29LV400BC Sector Architecture
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ PRODUCT LINE UP
Part No.
MBM29LV400TC/MBM29LV400BC
VCC = 3.3 V
+0.3 V
–0.3 V
-70
—
—
VCC = 3.0 V
+0.6 V
–0.3 V
—
-90
-12
Max. Address Access Time (ns)
70
90
120
Max. CE Access Time (ns)
70
90
120
Max. OE Access Time (ns)
30
35
50
Ordering Part No.
■ BLOCK DIAGRAM
RY/BY
Buffer
DQ 0 to DQ 15
RY/BY
V CC
V SS
Input/Output
Buffers
Erase Voltage
Generator
WE
BYTE
RESET
State
Control
Command
Register
Program Voltage
Generator
Chip Enable
Output Enable
Logic
CE
OE
STB
Low V CC Detector
Timer for
Program/Erase
Address
Latch
STB
Data Latch
Y-Decoder
Y-Gating
X-Decoder
Cell Matrix
A0 to A17
A-1
5
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ CONNECTION DIAGRAMS
SOP
(Top View)
TSOP(I)
A15
A14
A13
A12
A11
A10
A9
A8
N.C.
N.C.
WE
RESET
N.C.
N.C.
RY/BY
N.C.
A17
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
(Marking Side)
MBM29LV400TC/MBM29LV400BC
Standard Pinout
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
A16
BYTE
VSS
DQ 15/A-1
DQ7
DQ14
DQ6
DQ13
DQ5
DQ12
DQ4
VCC
DQ11
DQ3
DQ10
DQ2
DQ9
DQ1
DQ8
DQ0
OE
VSS
CE
A0
FPT-48P-M19
A1
A2
A3
A4
A5
A6
A7
A17
N.C.
RY/BY
N.C.
N.C.
RESET
WE
N.C.
N.C.
A8
A9
A10
A11
A12
A13
A14
A15
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
(Marking Side)
MBM29LV400TC/MBM29LV400BC
Reverse Pinout
FPT-48P-M20
6
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
A0
CE
VSS
OE
DQ0
DQ8
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
VCC
DQ4
DQ12
DQ5
DQ13
DQ6
DQ14
DQ7
DQ15/A-1
VSS
BYTE
A16
N.C.
1
44
RESET
RY/BY
2
43
WE
A17
3
42
A8
A7
4
41
A9
A6
5
40
A10
A5
6
39
A11
A4
7
38
A12
A3
8
37
A13
A2
9
36
A14
A1
10
35
A15
A0
11
34
A16
CE
12
33
BYTE
VSS
13
32
V SS
OE
14
31
DQ 15/A-1
DQ0
15
30
DQ 7
DQ8
16
29
DQ 14
DQ1
17
28
DQ 6
DQ9
18
27
DQ 13
DQ2
19
26
DQ5
DQ10
20
25
DQ 12
DQ3
21
24
DQ4
DQ11
22
23
VCC
FPT-44P-M16
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
(Continued)
(TOP VIEW)
A1
A2
A3
A4
A5
A6
A7
A17
N.C.
RY/BY
N.C.
N.C.
RESET
WE
N.C.
N.C.
A8
A9
A10
A11
A12
A13
A14
A15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
CSOP-48
A0
CE
VSS
OE
DQ0
DQ8
DQ1
DQ9
DQ2
DQ10
DQ3
DQ11
VCC
DQ4
DQ12
DQ5
DQ13
DQ6
DQ14
DQ7
DQ15/A-1
VSS
BYTE
A16
LCC-48P-M03
FBGA
(Top View)
Marking side
A1
A2
A3
A4
A5
A6
B1
B2
B3
B4
B5
B6
C1
C2
C3
C4
C5
C6
D1
D2
D3
D4
D5
D6
E1
E2
E3
E4
E5
E6
F1
F2
F3
F4
F5
F6
G1
G2
G3
G4
G5
G6
H1
H2
H3
H4
H5
H6
BGA-48P-M01
A1
A3
A2
A7
A3
RY/BY
A4
WE
A5
A9
A6
A13
B1
A4
B2
A17
B3
N.C.
B4
RESET
B5
A8
B6
A12
C1
A2
C2
A6
C3
N.C.
C4
N.C.
C5
A10
C6
A14
D1
A1
D2
A5
D3
N.C.
D4
N.C.
D5
A11
D6
A15
E1
A0
E2
DQ0
E3
DQ2
E4
DQ5
E5
DQ7
E6
A16
F1
CE
F2
DQ8
F3
DQ10
F4
DQ12
F5
DQ14
F6
BYTE
G1
OE
G2
DQ9
G3
DQ11
G4
VCC
G5
DQ13
G6
DQ15/A-1
H1
VSS
H2
DQ1
H3
DQ3
H4
DQ4
H5
DQ6
H6
VSS
7
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ LOGIC SYMBOL
Table 1
MBM29LV400TC/400BC Pin Configuration
Pin
A-1
Function
A-1, A0 to A17
Address Inputs
DQ0 to DQ15
Data Inputs/Outputs
CE
Chip Enable
OE
Output Enable
WE
Write Enable
18
A0 to A17
16 or 8
DQ 0 to DQ 15
CE
RY/BY
Ready/Busy Output
RESET
Hardware Reset Pin/Temporary Sector
Unprotection
OE
WE
RESET
BYTE
8
RY/BY
BYTE
Selects 8-bit or 16-bit mode
N.C.
No Internal Connection
VSS
Device Ground
VCC
Device Power Supply
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Table 2
MBM29LV400TC/400BC User Bus Operations (BYTE = VIH)
Operation
CE
OE
WE
A0
A1
A6
A9
DQ0 to DQ15
RESET
Auto-Select Manufacturer Code (1)
L
L
H
L
L
L
VID
Code
H
Auto-Select Device Code (1)
L
L
H
H
L
L
VID
Code
H
Read (3)
L
L
H
A0
A1
A6
A9
DOUT
H
Standby
H
X
X
X
X
X
X
HIGH-Z
H
Output Disable
L
H
H
X
X
X
X
HIGH-Z
H
Write (Program/Erase)
L
H
L
A0
A1
A6
A9
DIN
H
Enable Sector Protection (2), (4)
L
VID
L
H
L
VID
X
H
Verify Sector Protection (2), (4)
L
L
H
L
H
L
VID
Code
H
Temporary Sector Unprotection
X
X
X
X
X
X
X
X
VID
Reset (Hardware)/Standby
X
X
X
X
X
X
X
HIGH-Z
L
Table 3
MBM29LV400TC/400BC User Bus Operations (BYTE = VIL)
Operation
CE
OE
WE
DQ15/
A-1
A0
A1
A6
A9
Auto-Select Manufacturer Code (1)
L
L
H
L
L
L
L
VID
Code
H
Auto-Select Device Code (1)
L
L
H
L
H
L
L
VID
Code
H
Read (3)
L
L
H
A-1
A0
A1
A6
A9
DOUT
H
Standby
H
X
X
X
X
X
X
X
HIGH-Z
H
Output Disable
L
H
H
X
X
X
X
X
HIGH-Z
H
Write (Program/Erase)
L
H
L
A-1
A0
A1
A6
A9
DIN
H
Enable Sector Protection (2), (4)
L
VID
L
L
H
L
VID
X
H
Verify Sector Protection (2), (4)
L
L
H
L
L
H
L
VID
Code
H
Temporary Sector Unprotection (5)
X
X
X
X
X
X
X
X
X
VID
Reset (Hardware)/Standby
X
X
X
X
X
X
X
X
HIGH-Z
L
Legend: L = VIL, H = VIH, X = VIL or VIH,
DQ0 to DQ7 RESET
= Pulse input. See DC Characteristics for voltage levels.
Notes: 1. Manufacturer and device codes may also be accessed via a command register write sequence. See
Table 7.
2. Refer to the section on Sector Protection.
3. WE can be VIL if OE is VIL, OE at VIH initiates the write operations.
4. VCC = 3.3 V ± 10%
5. It is also used for the extended sector protection.
9
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ ORDERING INFORMATION
Standard Products
Fujitsu standard products are available in several packages. The order number is formed by a combination of:
MBM29LV400
T
C
-70
PFTN
PACKAGE TYPE
PFTN = 48-Pin Thin Small Outline Package
(TSOP) Standard Pinout
PFTR = 48-Pin Thin Small Outline Package
(TSOP) Reverse Pinout
PF =
44-Pin Small Outline Package
PCV = 48-Pin C- leaded Small Outline
Package (CSOP)
PBT = 48-Ball Fine Pitch Ball Grid Array
Package (FBGA)
SPEED OPTION
See Product Selector Guide
Device Revision
BOOT CODE SECTOR ARCHITECTURE
T = Top sector
B = Bottom sector
DEVICE NUMBER/DESCRIPTION
MBM29LV400
4Mega-bit (512K × 8-Bit or 256K × 16-Bit) CMOS Flash Memory
3.0 V-only Read, Program, and Erase
10
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ FUNCTIONAL DESCRIPTION
Read Mode
The MBM29LV400TC/BC have two control functions which must be satisfied in order to obtain data at the outputs.
CE is the power control and should be used for a device selection. OE is the output control and should be used
to gate data to the output pins if a device is selected.
Address access time (tACC) is equal to the delay from stable addresses to valid output data. The chip enable
access time (tCE) is the delay from stable addresses and stable CE to valid data at the output pins. The output
enable access time is the delay from the falling edge of OE to valid data at the output pins. (Assuming the
addresses have been stable for at least tACC-tOE time.) When reading out a data without changing addresses after
power-up, it is necessary to input hardware reset or change CE pin from “H” or “L”
Standby Mode
There are two ways to implement the standby mode on the MBM29LV400TC/BC devices, one using both the
CE and RESET pins; the other via the RESET pin only.
When using both pins, a CMOS standby mode is achieved with CE and RESET inputs both held at VCC ± 0.3 V.
Under this condition the current consumed is less than 5 µA. The device can be read with standard access time
(tCE) from either of these standby modes. During Embedded Algorithm operation, VCC active current (ICC2) is
required even CE = “H”.
When using the RESET pin only, a CMOS standby mode is achieved with RESET input held at VSS ± 0.3 V
(CE = “H” or “L”). Under this condition the current is consumed is less than 5 µA. Once the RESET pin is taken
high, the device requires tRH of wake up time before outputs are valid for read access.
In the standby mode the outputs are in the high impedance state, independent of the OE input.
Automatic Sleep Mode
There is a function called automatic sleep mode to restrain power consumption during read-out of
MBM29LV400TC/400BC data. This mode can be used effectively with an application requested low power
consumption such as handy terminals.
To activate this mode, MBM29LV400TC/400BC automatically switch themselves to low power mode when
MBM29LV400TC/400BC addresses remain stably during access fine of 150 ns. It is not necessary to control
CE, WE, and OE on the mode. Under the mode, the current consumed is typically 1 µA (CMOS Level).
Since the data are latched during this mode, the data are read-out continuously. If the addresses are changed,
the mode is canceled automatically and MBM29LV400TC/400BC read-out the data for changed addresses.
Output Disable
With the OE input at a logic high level (VIH), output from the devices are disabled. This will cause the output pins
to be in a high impedance state.
Autoselect
The autoselect mode allows the reading out of a binary code from the devices and will identify its manufacturer
and type. This mode is intended for use by programming equipment for the purpose of automatically matching
the devices to be programmed with its corresponding programming algorithm. This mode is functional over the
entire temperature range of the devices.
To activate this mode, the programming equipment must force VID (11.5 V to 12.5 V) on address pin A9. Two
identifier bytes may then be sequenced from the devices outputs by toggling address A0 from VIL to VIH. All
addresses are DON’T CARES except A0, A1, A6, and A-1. (See Table 4.1.)
11
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
The manufacturer and device codes may also be read via the command register, for instances when the
MBM29LV400TC/BC are erased or programmed in a system without access to high voltage on the A9 pin. The
command sequence is illustrated in Table 7. (Refer to Autoselect Command section.)
Byte 0 (A0 = VIL) represents the manufacturer’s code (Fujitsu = 04H) and (A0 = VIH) represents the device identifier
code (MBM29LV400TC = B9H and MBM29LV400BC = BAH for ×8 mode; MBM29LV400TC = 22B9H and
MBM29LV400BC = 22BAH for ×16 mode). These two bytes/words are given in the tables 4.1 and 4.2. All identifiers
for manufactures and device will exhibit odd parity with DQ7 defined as the parity bit. In order to read the proper
device codes when executing the autoselect, A1 must be VIL. (See Tables 4.1 and 4.2.)
Table 4 .1 MBM29LV400TC/400BC Sector Protection Verify Autoselect Codes
Type
A12 to A17
A6
A1
A0
A-1*1
Code (HEX)
X
VIL
VIL
VIL
VIL
04H
VIL
B9H
X
VIL
VIL
VIH
X
22B9H
VIL
BAH
X
22BAH
VIL
01H*2
Manufacture’s Code
Byte
MBM29LV400TC
Word
Device Code
Byte
MBM29LV400BC
X
VIL
VIL
VIH
Word
Sector
Addresses
Sector Protection
VIH
VIL
VIL
*1: A-1 is for Byte mode.
*2: Outputs 01H at protected sector addresses and outputs 00H at unprotected sector addresses.
Table 4 .2 Expanded Autoselect Code Table
Type
Code
Manufacturer’s Code
04H
(B)
DQ15 DQ14 DQ13 DQ12 DQ11 DQ10 DQ9 DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1 DQ0
0
0
0
0
0
1
0
0
B9H A-1 HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z 1
0
1
1
1
0
0
1
1
0
1
1
1
0
0
1
BAH A-1 HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z HI-Z 1
0
1
1
1
0
1
0
A-1/0
0
0
0
0
0
0
0
MBM29LV400TC
(W) 22B9H
Device
Code
(B)
0
0
1
0
0
0
1
0
MBM29LV400BC
(W) 22BAH
Sector Protection
(B): Byte mode
(W): Word mode
12
01H
0
0
1
0
0
0
1
0
1
0
1
1
1
0
1
0
A-1/0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Write
Device erasure and programming are accomplished via the command register. The contents of the register serve
as inputs to the internal state machine. The state machine outputs dictate the function of the device.
The command register itself does not occupy any addressable memory location. The register is a latch used to
store the commands, along with the address and data information needed to execute the command. The
command register is written by bringing WE to VIL, while CE is at VIL and OE is at VIH. Addresses are latched on
the falling edge of WE or CE, whichever happens later; while data is latched on the rising edge of WE or CE,
whichever happens first. Standard microprocessor write timings are used.
Refer to AC Write Characteristics and the Erase/Programming Waveforms for specific timing parameters.
Sector Protection
The MBM29LV400TC/BC feature hardware sector protection. This feature will disable both program and erase
operations in any number of sectors (0 through 10). The sector protection feature is enabled using programming
equipment at the user’s site. The devices are shipped with all sectors unprotected. Alternatively, Fujitsu may
program and protect sectors in the factory prior to shiping the device.
To activate this mode, the programming equipment must force VID on address pin A9 and control pin OE, (suggest
VID = 11.5 V), CE = VIL, and A6 = VIL. The sector addresses ( A17, A16, A15, A14, A13, and A12) should be set to the
sector to be protected. Tables 5 and 6 define the sector address for each of the eleven (11) individual sectors.
Programming of the protection circuitry begins on the falling edge of the WE pulse and is terminated with the
rising edge of the same. Sector addresses must be held constant during the WE pulse. See Figures 16 and 24
for sector protection waveforms and algorithm.
To verify programming of the protection circuitry, the programming equipment must force VID on address pin A9
with CE and OE at VIL and WE at VIH. Scanning the sector addresses ( A17, A16, A15, A14, A13, and A12) while (A6,
A1, A0) = (0, 1, 0) will produce a logical “1” code at device output DQ0 for a protected sector. Otherwise the
devices will read 00H for unprotected sector. In this mode, the lower order addresses, except for A0, A1, and A6
are DON’T CARES. Address locations with A1 = VIL are reserved for Autoselect manufacturer and device codes.
A-1 requires to apply to VIL on byte mode.
It is also possible to determine if a sector is protected in the system by writing an Autoselect command. Performing
a read operation at the address location XX02H, where the higher order addresses (A17, A16, A15, A14, A13, and
A12) are the desired sector address will produce a logical “1” at DQ0 for a protected sector. See Tables 4.1 and
4.2 for Autoselect codes.
Temporary Sector Unprotection
This feature allows temporary unprotection of previously protected sectors of the MBM29LV400TC/BC devices
in order to change data. The Sector Unprotection mode is activated by setting the RESET pin to high voltage
(12 V). During this mode, formerly protected sectors can be programmed or erased by selecting the sector
addresses. Once the 12 V is taken away from the RESET pin, all the previously protected sectors will be protected
again. See Figures 17 and 25.
13
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
RESET
Hardware Reset
The MBM29LV400TC/BC devices may be reset by driving the RESET pin to VIL. The RESET pin has a pulse
requirement and has to be kept low (VIL) for at least 500 ns in order to properly reset the internal state machine.
Any operation in the process of being executed will be terminated and the internal state machine will be reset
to the read mode 20 µs after the RESET pin is driven low. Furthermore, once the RESET pin goes high, the
devices require an additional tRH before it will allow read access. When the RESET pin is low, the devices will
be in the standby mode for the duration of the pulse and all the data output pins will be tri-stated. If a hardware
reset occurs during a program or erase operation, the data at that particular location will be corrupted. Please
note that the RY/BY output signal should be ignored during the RESET pulse. See Figure 12 for the timing
diagram. Refer to Temporary Sector Unprotection for additional functionality.
If hardware reset occurs during Embedded Erase Algorithm, there is a possibility that the erasing sector(s)
cannot be used.
14
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Table 5
Sector
Address
Sector Address Tables (MBM29LV400TC)
A17
A16
A15
A14
A13
A12
Address Range (×8)
Address Range (×16)
SA0
0
0
0
X
X
X
00000H to 0FFFFH
00000H to 07FFFH
SA1
0
0
1
X
X
X
10000H to 1FFFFH
08000H to 0FFFFH
SA2
0
1
0
X
X
X
20000H to 2FFFFH
10000H to 17FFFH
SA3
0
1
1
X
X
X
30000H to 3FFFFH
18000H to 1FFFFH
SA4
1
0
0
X
X
X
40000H to 4FFFFH
20000H to 27FFFH
SA5
1
0
1
X
X
X
50000H to 5FFFFH
28000H to 2FFFFH
SA6
1
1
0
X
X
X
60000H to 6FFFFH
30000H to 37FFFH
SA7
1
1
1
0
X
X
70000H to 77FFFH
38000H to 3BFFFH
SA8
1
1
1
1
0
0
78000H to 79FFFH
3C000H to 3CFFFH
SA9
1
1
1
1
0
1
7A000H to 7BFFFH
3D000H to 3DFFFH
SA10
1
1
1
1
1
X
7C000H to 7FFFFH
3E000H to 3FFFFH
15
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Table 6
Sector
Address
16
Sector Address Tables (MBM29LV400BC)
A17
A16
A15
A14
A13
A12
Address Range (×8)
Address Range (×16)
SA0
0
0
0
0
0
X
00000H to 03FFFH
00000H to 01FFFH
SA1
0
0
0
0
1
0
04000H to 05FFFH
02000H to 02FFFH
SA2
0
0
0
0
1
1
06000H to 07FFFH
03000H to 03FFFH
SA3
0
0
0
1
X
X
08000H to 0FFFFH
04000H to 07FFFH
SA4
0
0
1
X
X
X
10000H to 1FFFFH
08000H to 0FFFFH
SA5
0
1
0
X
X
X
20000H to 2FFFFH
10000H to 17FFFH
SA6
0
1
1
X
X
X
30000H to 3FFFFH
18000H to 1FFFFH
SA7
1
0
0
X
X
X
40000H to 4FFFFH
20000H to 27FFFH
SA8
1
0
1
X
X
X
50000H to 5FFFFH
28000H to 2FFFFH
SA9
1
1
0
X
X
X
60000H to 6FFFFH
30000H to 37FFFH
SA10
1
1
1
X
X
X
70000H to 7FFFFH
38000H to 3FFFFH
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Table 7
Command
Sequence
Read/Reset
Read/Reset
Autoselect
Program
Chip Erase
Sector Erase
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Word
Byte
Bus
Write
Cycles
Req’d
1
3
3
4
6
6
MBM29LV400TC/400BC Standard Command Definitions
Bus
First Bus Second Bus Third Bus Fourth
Fifth Bus
Sixth Bus
Read/Write
Write Cycle Write Cycle Write Cycle
Write
Cycle
Write
Cycle
Cycle
Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data
XXXH F0H
555H
AAAH
555H
AAAH
555H
AAAH
555H
AAAH
555H
AAAH
AAH
AAH
AAH
AAH
AAH
—
2AAH
555H
2AAH
555H
2AAH
555H
2AAH
555H
2AAH
555H
—
55H
55H
55H
55H
55H
—
555H
AAAH
555H
AAAH
555H
AAAH
555H
AAAH
555H
AAAH
—
—
—
—
—
—
—
F0H
RA
RD
—
—
—
—
90H
—
—
—
—
—
—
A0H
PA
PD
—
—
—
—
80H
80H
555H
AAAH
555H
AAAH
AAH
AAH
2AAH
555H
2AAH
555H
55H
55H
555H
AAAH
SA
Sector Erase Suspend
Erase can be suspended during sector erase with Addr. (“H” or “L”). Data (B0H)
Sector Erase Resume
Erase can be resumed after suspend with Addr. (“H” or “L”). Data (30H)
10H
30H
Notes: 1. Address bits A11 to A17 = X = “H” or “L” for all address commands except or Program Address (PA) and
Sector Address (SA)
2. Bus operations are defined in Tables 2 and 3.
3. RA = Address of the memory location to be read
PA = Address of the memory location to be programmed
Addresses are latched on the falling edge of the WE pulse.
SA = Address of the sector to be erased. The combination of A17, A16, A15, A14, A13, and A12 will
uniquely select any sector.
4. RD = Data read from location RA during read operation.
PD = Data to be programmed at location PA. Data is latched on the falling edge of WE.
5. The system should generate the following address patterns:
Word Mode: 555H or 2AAH to addresses A0 to A10
Byte Mode: AAAH or 555H to addresses A–1 and A0 to A10
6. Both Read/Reset commands are functionally equivalent, resetting the device to the read mode.
17
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Table 8
Command
Sequence
Set to
Fast Mode
Bus
Write
Cycles
Req'd
Word
Byte
Fast Program Word
*1
Byte
Reset from
Fast Mode *1
Extended
Sector
Protect *2
3
2
Word
MBM29LV400TC/BC Extended Command Definitions
First Bus
Write Cycle
Addr
555H
AAAH
Data
AAH
XXXH
XXXH
A0H
XXXH
2
Byte
Second Bus
Write Cycle
Addr
2AAH
555H
PA
Data
55H
Third Bus
Write Cycle
Addr
555H
AAAH
Fourth Bus
Read Cycle
Data
Addr
Data
20H
—
—
PD
—
—
—
—
F0H *3
—
—
—
—
60H
SPA
40H
SPA
SD
XXXH
90H
XXXH
XXXH
Word
Byte
4
XXXH
60H
SPA
SPA : Sector address to be protected. Set sector address (SA) and (A6, A1, A0) = (0, 1, 0).
SD : Sector protection verify data. Output 01H at protected sector addresses and output 00H at unprotected
sector addresses.
*1 This command is valid while Fast Mode.
*2 This command is valid while RESET= VIH.
*3 This data " 00H" is also acceptable.
Command Definitions
Device operations are selected by writing specific address and data sequences into the command register.
Writing incorrect address and data values or writing them in the improper sequence will reset the devices to the
read mode. Table 7 defines the valid register command sequences. Note that the Erase Suspend (B0H) and
Erase Resume (30H) commands are valid only while the Sector Erase operation is in progress. Moreover both
Read/Reset commands are functionally equivalent, resetting the device to the read mode. Please note that
commands are always written at DQ0 to DQ7 and DQ8 to DQ15 bits are ignored.
Read/Reset Command
In order to return from Autoselect mode or Exceeded Timing Limits (DQ5 = 1) to read/reset mode, the read/reset
operation is initiated by writing the Read/Reset command sequence into the command register. Microprocessor
read cycles retrieve array data from the memory. The devices remain enabled for reads until the command
register contents are altered.
The devices will automatically power-up in the read/reset state. In this case, a command sequence is not required
to read data. Standard microprocessor read cycles will retrieve array data. This default value ensures that no
spurious alteration of the memory content occurs during the power transition. Refer to the AC Read
Characteristics and Waveforms for the specific timing parameters.
18
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Autoselect Command
Flash memories are intended for use in applications where the local CPU alters memory contents. As such,
manufacture and device codes must be accessible while the devices reside in the target system. PROM
programmers typically access the signature codes by raising A9 to a high voltage. However, multiplexing high
voltage onto the address lines is not generally desired system design practice.
The device contains an Autoselect command operation to supplement traditional PROM programming
methodology. The operation is initiated by writing the Autoselect command sequence into the command register.
Following the command write, a read cycle from address XX00H retrieves the manufacture code of 04H. A read
cycle from address XX01H for ×16(XX02H for ×8) returns the device code (MBM29LV400TC = B9H and
MBM29LV400BC = BAH for ×8 mode; MBM29LV400TC = 22B9H and MBM29LV400BC = 22BAH for ×16 mode).
(See Tables 4.1 and 4.2.) All manufacturer and device codes will exhibit odd parity with DQ7 defined as the parity
bit. Sector state (protection or unprotection) will be informed by address XX02H for ×16 (XX04H for ×8).
Scanning the sector addresses (A17, A16, A15, A14, A13, and A12) while (A6, A1, A0) = (0, 1, 0) will produce a logical
“1” at device output DQ0 for a protected sector. The programming verification should be perform margin mode
on the protected sector. (See Tables 2 and 3.)
To terminate the operation, it is necessary to write the Read/Reset command sequence into the register, and
also to write the Autoselect command during the operation, execute it after writing Read/Reset command
sequence.
Byte/Word Programming
The devices are programmed on a byte-by-byte (or word-by-word) basis. Programming is a four bus cycle
operation. There are two “unlock” write cycles. These are followed by the program set-up command and data
write cycles. Addresses are latched on the falling edge of CE or WE, whichever happens later and the data is
latched on the rising edge of CE or WE, whichever happens first. The rising edge of CE or WE (whichever
happens first) begins programming. Upon executing the Embedded Program Algorithm command sequence,
the system is not required to provide further controls or timings. The device will automatically provide adequate
internally generated program pulses and verify the programmed cell margin.
The automatic programming operation is completed when the data on DQ7 is equivalent to data written to this
bit at which time the devices return to the read mode and addresses are no longer latched. (See Table 9, Hardware
Sequence Flags.) Therefore, the devices require that a valid address to the devices be supplied by the system
at this particular instance of time. Hence, Data Polling must be performed at the memory location which is being
programmed.
Any commands written to the chip during this period will be ignored. If hardware reset occurs during the
programming operation, it is impossible to guarantee the data are being written.
Programming is allowed in any sequence and across sector boundaries. Beware that a data “0” cannot be
programmed back to a “1”. Attempting to do so may either hang up the device or result in an apparent success
according to the data polling algorithm but a read from read/reset mode will show that the data is still “0”. Only
erase operations can convert “0”s to “1”s.
Figure 20 illustrates the Embedded ProgramTM Algorithm using typical command strings and bus operations.
19
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Chip Erase
Chip erase is a six bus cycle operation. There are two “unlock” write cycles. These are followed by writing the
“set-up” command. Two more “unlock” write cycles are then followed by the chip erase command.
Chip erase does not require the user to program the device prior to erase. Upon executing the Embedded Erase
Algorithm command sequence the devices will automatically program and verify the entire memory for an all
zero data pattern prior to electrical erase (Preprogram function). The system is not required to provide any
controls or timings during these operations.
The automatic erase begins on the rising edge of the last WE pulse in the command sequence and terminates
when the data on DQ7 is “1” (See Write Operation Status section.) at which time the device returns to read the
mode.
Chip Erase Time; Sector Erase Time × All sectors + Chip Program Time (Preprogramming)
Figure 21 illustrates the Embedded EraseTM Algorithm using typical command strings and bus operations.
Sector Erase
Sector erase is a six bus cycle operation. There are two “unlock” write cycles. These are followed by writing the
“set-up” command. Two more “unlock” write cycles are then followed by the Sector Erase command. The sector
address (any address location within the desired sector) is latched on the falling edge of WE, while the command
(Data=30H) is latched on the rising edge of WE. After time-out of 50 µs from the rising edge of the last sector
erase command, the sector erase operation will begin.
Multiple sectors may be erased concurrently by writing the six bus cycle operations on Table 7. This sequence
is followed with writes of the Sector Erase command to addresses in other sectors desired to be concurrently
erased. The time between writes must be less than 50 µs otherwise that command will not be accepted and
erasure will start. It is recommended that processor interrupts be disabled during this time to guarantee this
condition. The interrupts can be re-enabled after the last Sector Erase command is written. A time-out of 50 µs
from the rising edge of the last WE will initiate the execution of the Sector Erase command(s). If another falling
edge of the WE occurs within the 50 µs time-out window the timer is reset. (Monitor DQ3 to determine if the
sector erase timer window is still open, see section DQ3, Sector Erase Timer.) Any command other than Sector
Erase or Erase Suspend during this time-out period will reset the devices to the read mode, ignoring the previous
command string. Resetting the devices once execution has begun will corrupt the data in the sector. In that
case, restart the erase on those sectors and allow them to complete. (Refer to the Write Operation Status section
for Sector Erase Timer operation.) Loading the sector erase buffer may be done in any sequence and with any
number of sectors (0 to 10).
Sector erase does not require the user to program the devices prior to erase. The devices automatically program
all memory locations in the sector(s) to be erased prior to electrical erase (Preprogram function). When erasing
a sector or sectors the remaining unselected sectors are not affected. The system is not required to provide any
controls or timings during these operations.
The automatic sector erase begins after the 50 µs time out from the rising edge of the WE pulse for the last
sector erase command pulse and terminates when the data on DQ7 is “1” (See Write Operation Status section.)
at which time the devices return to the read mode. Data polling must be performed at an address within any of
the sectors being erased. Multiple Sector Erase Time; [Sector Erase Time + Sector Program Time
(Preprogramming)] × Number of Sector Erase
Figure 21 illustrates the Embedded EraseTM Algorithm using typical command strings and bus operations.
20
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Erase Suspend
The Erase Suspend command allows the user to interrupt a Sector Erase operation and then perform data reads
from or programs to a sector not being erased. This command is applicable ONLY during the Sector Erase
operation which includes the time-out period for sector erase. The Erase Suspend command will be ignored if
written during the Chip Erase operation or Embedded Program Algorithm. Writting the Erase Suspend command
during the Sector Erase time-out results in immediate termination of the time-out period and suspension of the
erase operation.
Writing the Erase Resume command resumes the erase operation. The addresses are DON’T CARES when
writing the Erase Suspend or Erase Resume command.
When the Erase Suspend command is written during the Sector Erase operation, the device will take a maximum
of 20 µs to suspend the erase operation. When the devices have entered the erase-suspended mode, the RY/
BY output pin and the DQ7 bit will be at logic “1”, and DQ6 will stop toggling. The user must use the address of
the erasing sector for reading DQ6 and DQ7 to determine if the erase operation has been suspended. Further
writes of the Erase Suspend command are ignored.
When the erase operation has been suspended, the devices default to the erase-suspend-read mode. Reading
data in this mode is the same as reading from the standard read mode except that the data must be read from
sectors that have not been erase-suspended. Successively reading from the erase-suspended sector while the
device is in the erase-suspend-read mode will cause DQ2 to toggle. (See the section on DQ2.)
After entering the erase-suspend-read mode, the user can program the device by writing the appropriate
command sequence for Program. This program mode is known as the erase-suspend-program mode. Again,
programming in this mode is the same as programming in the regular Program mode except that the data must
be programmed to sectors that are not erase-suspended. Successively reading from the erase-suspended sector
while the devices are in the erase-suspend-program mode will cause DQ2 to toggle. The end of the erasesuspended Program operation is detected by the RY/BY output pin, Data polling of DQ7, or by the Toggle Bit I
(DQ6) which is the same as the regular Program operation. Note that DQ7 must be read from the Program address
while DQ6 can be read from any address.
To resume the operation of Sector Erase, the Resume command (30H) should be written. Any further writes of
the Resume command at this point will be ignored. Another Erase Suspend command can be written after the
chip has resumed erasing.
21
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Extended Command
(1) Fast Mode
MBM29LV400TC/BC has Fast Mode function. This mode dispenses with the initial two unclock cycles
required in the standard program command sequence by writing Fast Mode command into the command
register. In this mode, the required bus cycle for programming is two cycles instead of four bus cycles in
standard program command. (Do not write erase command in this mode.) The read operation is also executed
after exiting this mode. To exit this mode, it is necessary to write Fast Mode Reset command into the command
register. (Refer to the Figure 27 Extended algorithm.) The VCC active current is required even CE = VIH during
Fast Mode.
(2) Fast Programming
During Fast Mode, the programming can be executed with two bus cycles operation. The Embedded Program
Algorithm is executed by writing program set-up command (A0H) and data write cycles (PA/PD). (Refer to
the Figure 27 Extended algorithm.)
(3) Extended Sector Protection
In addition to normal sector protection, the MBM29LV400TC/BC has Extended Sector Protection as extended
function. This function enable to protect sector by forcing VID on RESET pin and write a commnad sequence.
Unlike conventional procedure, it is not necessary to force VID and control timing for control pins. The only
RESET pin requires VID for sector protection in this mode. The extended sector protect requires VID on RESET
pin. With this condition, the operation is initiated by writing the set-up command (60H) into the command
register. Then, the sector addresses pins (A17, A16, A15, A14, A13 and A12) and (A6, A1, A0) = (0, 1, 0) should
be set to the sector to be protected (recommend to set VIL for the other addresses pins), and write extended
sector protect command (60H). A sector is typically protected in 150 µs. To verify programming of the
protection circuitry, the sector addresses pins (A17, A16, A15, A14, A13 and A12) and (A6, A1, A0) = (0, 1, 0) should
be set and write a command (40H). Following the command write, a logical “1” at device output DQ0 will
produce for protected sector in the read operation. If the output data is logical “0”, please repeat to write
extended sector protect command (60H) again. To terminate the operation, it is necessary to set RESET
pin to VIH.
22
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Write Operation Status
Table 9
Hardware Sequence Flags
Status
DQ7
DQ6
DQ5
DQ3
DQ2
DQ7
Toggle
0
0
1
0
Toggle
0
1
Toggle
1
1
0
0
Toggle
Data
Data
DQ7
Toggle
(Note 1)
0
0
1
(Note 2)
Embedded Program Algorithm
DQ7
Toggle
1
0
1
Embedded Erase Algorithm
Exceeded
Time Limits Erase
Erase Suspend Program
Suspended
(Non-Erase Suspended Sector)
Mode
0
Toggle
1
1
N/A
DQ7
Toggle
1
0
N/A
Embedded Program Algorithm
Embedded Erase Algorithm
In Progress
Erase Suspend Read
(Erase Suspended Sector)
Erase
Erase Suspend Read
Suspended
(Non-Erase Suspended Sector)
Mode
Erase Suspend Program
(Non-Erase Suspended Sector)
Data Data
Data
Notes: 1. Performing successive read operations from any address will cause DQ6 to toggle.
2. Reading the byte address being programmed while in the erase-suspend program mode will indicate
logic “1” at the DQ2 bit. However, successive reads from the erase-suspended sector will cause DQ2 to
toggle.
3. DQ0 and DQ1 are reserve pins for future use.
4. DQ4 is Fujitsu internal use only.
23
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
DQ7
Data Polling
The MBM29LV400TC/BC devices feature Data Polling as a method to indicate to the host that the Embedded
Algorithms are in progress or completed. During the Embedded Program Algorithm an attempt to read the
devices will produce the complement of the data last written to DQ7. Upon completion of the Embedded Program
Algorithm, an attempt to read the device will produce the true data last written to DQ7. During the Embedded
Erase Algorithm, an attempt to read the device will produce a “0” at the DQ7 output. Upon completion of the
Embedded Erase Algorithm an attempt to read the device will produce a “1” at the DQ7 output. The flowchart
for Data Polling (DQ7) is shown in Figure 22.
For chip erase and sector erase, the Data Polling is valid after the rising edge of the sixth WE pulse in the six
write pulse sequence. Data Polling must be performed at sector address within any of the sectors being erased
and not a protected sector. Otherwise, the status may not be valid. Once the Embedded Algorithm operation is
close to being completed, the MBM29LV400TC/BC data pins (DQ7) may change asynchronously while the output
enable (OE) is asserted low. This means that the devices are driving status information on DQ7 at one instant
of time and then that byte’s valid data at the next instant of time. Depending on when the system samples the
DQ7 output, it may read the status or valid data. Even if the device has completed the Embedded Algorithm
operation and DQ7 has a valid data, the data outputs on DQ0 to DQ6 may be still invalid. The valid data on DQ0
to DQ7 will be read on the successive read attempts.
The Data Polling feature is only active during the Embedded Programming Algorithm, Embedded Erase Algorithm
or sector erase time-out. (See Table 9.)
See Figure 9 for the Data Polling timing specifications and diagrams.
DQ6
Toggle Bit I
The MBM29LV400TC/BC also feature the “Toggle Bit I” as a method to indicate to the host system that the
Embedded Algorithms are in progress or completed.
During an Embedded Program or Erase Algorithm cycle, successive attempts to read (OE toggling) data from
the devices will result in DQ6 toggling between one and zero. Once the Embedded Program or Erase Algorithm
cycle is completed, DQ6 will stop toggling and valid data will be read on the next successive attempts. During
programming, the Toggle Bit I is valid after the rising edge of the fourth WE pulse in the four write pulse sequence.
For chip erase and sector erase, the Toggle Bit I is valid after the rising edge of the sixth WE pulse in the six
write pulse sequence. The Toggle Bit I is active during the sector time out.
In programming, if the sector being written to is protected, the toggle bit will toggle for about 2 µs and then stop
toggling without the data having changed. In erase, the devices will erase all the selected sectors except for the
ones that are protected. If all selected sectors are protected, the chip will toggle the toggle bit for about 100 µs
and then drop back into read mode, having changed none of the data.
Either CE or OE toggling will cause the DQ6 to toggle. In addition, an Erase Suspend/Resume command will
cause the DQ6 to toggle.
See Figure 10 for the Toggle Bit I timing specifications and diagrams.
24
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
DQ5
Exceeded Timing Limits
DQ5 will indicate if the program or erase time has exceeded the specified limits (internal pulse count). Under
these conditions DQ5 will produce a “1”. This is a failure condition which indicates that the program or erase
cycle was not successfully completed. Data Polling is the only operating function of the devices under this
condition. The CE circuit will partially power down the device under these conditions (to approximately 2 mA).
The OE and WE pins will control the output disable functions as described in Tables 2 and 3.
The DQ5 failure condition may also appear if a user tries to program a non blank location without erasing. In this
case the devices lock out and never complete the Embedded Algorithm operation. Hence, the system never
reads a valid data on DQ7 bit and DQ6 never stops toggling. Once the devices have exceeded timing limits, the
DQ5 bit will indicate a “1.” Please note that this is not a device failure condition since the devices were incorrectly
used. If this occurs, reset the device with command sequence.
DQ3
Sector Erase Timer
After the completion of the initial sector erase command sequence the sector erase time-out will begin. DQ3 will
remain low until the time-out is complete. Data Polling and Toggle Bit are valid after the initial sector erase
command sequence.
If Data Polling or the Toggle Bit I indicates the device has been written with a valid erase command, DQ3 may
be used to determine if the sector erase timer window is still open. If DQ3 is high (“1”) the internally controlled
erase cycle has begun; attempts to write subsequent commands to the device will be ignored until the erase
operation is completed as indicated by Data Polling or Toggle Bit I. If DQ3 is low (“0”), the device will accept
additional sector erase commands. To insure the command has been accepted, the system software should
check the status of DQ3 prior to and following each subsequent Sector Erase command. If DQ3 were high on
the second status check, the command may not have been accepted.
See Table 9: Hardware Sequence Flags.
DQ2
Toggle Bit II
This toggle bit II, along with DQ6, can be used to determine whether the devices are in the Embedded Erase
Algorithm or in Erase Suspend.
Successive reads from the erasing sector will cause DQ2 to toggle during the Embedded Erase Algorithm. If the
devices are in the erase-suspended-read mode, successive reads from the erase-suspended sector will cause
DQ2 to toggle. When the devices are in the erase-suspended-program mode, successive reads from the byte
address of the non-erase suspended sector will indicate a logic “1” at the DQ2 bit.
DQ6 is different from DQ2 in that DQ6 toggles only when the standard program or Erase, or Erase Suspend
Program operation is in progress. The behavior of these two status bits, along with that of DQ7, is summarized
as follows:
For example, DQ2 and DQ6 can be used together to determine if the erase-suspend-read mode is in progress.
(DQ2 toggles while DQ6 does not.) See also Table 9 and Figure 18.
Furthermore, DQ2 can also be used to determine which sector is being erased. When the device is in the erase
mode, DQ2 toggles if this bit is read from an erasing sector.
25
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
DQ7
DQ6
DQ2
DQ7
Toggle
1
Erase
0
Toggle
Toggle
Erase-Suspend Read
(Erase-Suspended Sector)
(Note 1)
1
1
Toggle
DQ7
Toggle (Note 1)
1 (Note 2)
Mode
Program
Erase-Suspend Program
Notes: 1. Performing successive read operations from any address will cause DQ6 to toggle.
2. Reading the byte address being programmed while in the erase-suspend program mode will indicate
logic “1” at the DQ2 bit. However, successive reads from the erase-suspended sector will cause DQ2 to
toggle.
RY/BY
Ready/Busy
The MBM29LV400TC/BC provide a RY/BY open-drain output pin as a way to indicate to the host system that
the Embedded Algorithms are either in progress or has been completed. If the output is low, the devices are
busy with either a program or erase operation. If the output is high, the devices are ready to accept any read/
write or erase operation. When the RY/BY pin is low, the devices will not accept any additional program or erase
commands. If the MBM29LV400TC/BC are placed in an Erase Suspend mode, the RY/BY output will be high.
During programming, the RY/BY pin is driven low after the rising edge of the fourth WE pulse. During an erase
operation, the RY/BY pin is driven low after the rising edge of the sixth WE pulse. The RY/BY pin will indicate a
busy condition during the RESET pulse. Refer to Figure 11 and 12 for a detailed timing diagram. The RY/BY
pin is pulled high in standby mode.
Since this is an open-drain output, RY/BY pins can be tied together in parallel with a pull-up resistor to VCC.
Byte/Word Configuration
The BYTE pin selects the byte (8-bit) mode or word (16-bit) mode for the MBM29LV400TC/BC devices. When
this pin is driven high, the devices operate in the word (16-bit) mode. The data is read and programmed at DQ0
to DQ15. When this pin is driven low, the devices operate in byte (8-bit) mode. Under this mode, the DQ15/A-1 pin
becomes the lowest address bit and DQ8 to DQ14 bits are tri-stated. However, the command bus cycle is always
an 8-bit operation and hence commands are written at DQ0 to DQ7 and the DQ8 to DQ15 bits are ignored. Refer
to Figures 13, 14 and 15 for the timing diagram.
Data Protection
The MBM29LV400TC/BC are designed to offer protection against accidental erasure or programming caused
by spurious system level signals that may exist during power transitions. During power up the devices
automatically reset the internal state machine in the Read mode. Also, with its control register architecture,
alteration of the memory contents only occurs after successful completion of specific multi-bus cycle command
sequences.
The devices also incorporate several features to prevent inadvertent write cycles resulting form VCC power-up
and power-down transitions or system noise.
26
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Low VCC Write Inhibit
To avoid initiation of a write cycle during VCC power-up and power-down, a write cycle is locked out for VCC less
than 2.3 V (typically 2.4 V). If VCC < VLKO, the command register is disabled and all internal program/erase circuits
are disabled. Under this condition the device will reset to the read mode. Subsequent writes will be ignored until
the VCC level is greater than VLKO. It is the users responsibility to ensure that the control pins are logically correct
to prevent unintentional writes when VCC is above 2.3 V.
If Embedded Erase Algorithm is interrupted, there is possibility that the erasing sector(s) cannot be used.
Write Pulse “Glitch” Protection
Noise pulses of less than 5 ns (typical) on OE, CE, or WE will not initiate a write cycle.
Logical Inhibit
Writing is inhibited by holding any one of OE = VIL, CE = VIH, or WE = VIH. To initiate a write cycle CE and WE
must be a logical zero while OE is a logical one.
Power-Up Write Inhibit
Power-up of the devices with WE = CE = VIL and OE = VIH will not accept commands on the rising edge of WE.
The internal state machine is automatically reset to the read mode on power-up.
27
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ ABSOLUTE MAXIMUM RATINGS
Storage Temperature .................................................................................................. –55°C to +125°C
Ambient Temperature with Power Applied .................................................................. –40°C to +85°C
Voltage with respect to Ground All pins except A9, OE, RESET (Note 1) ................... –0.5 V to VCC+0.5 V
VCC (Note 1) ................................................................................................................ –0.5 V to +5.5 V
A9, OE, and RESET (Note 2) ...................................................................................... –0.5 V to +13.0 V
Notes: 1. Minimum DC voltage on input or I/O pins are –0.5 V. During voltage transitions, inputs may negative
overshoot VSS to –2.0 V for periods of up to 20 ns. Maximum DC voltage on output and I/O pins are VCC
+0.5 V. During voltage transitions, outputs may positive overshoot to VCC +2.0 V for periods of up to 20 ns.
2. Minimum DC input voltage on A9, OE and RESET pins are –0.5 V. During voltage transitions, A9, OE
and RESET pins may negative overshoot VSS to –2.0 V for periods of up to 20 ns. Maximum DC input
voltage on A9, OE and RESET pins are +13.0 V which may positive overshoot to 14.0 V for periods of
up to 20 ns. Voltage difference between input voltage and supply voltage (VIN – VCC) do not exceed 9 V.
WARNING: Semiconductor devices can be permanently damaged by application of stress (voltage, current,
temperature, etc.) in excess of absolute maximum ratings. Do not exceed these ratings.
■ RECOMMENDED OPERATING RANGES
Ambient Temperature (TA) ........................................................................................ –40°C to +85°C
VCC Supply Voltages
MBM29LV400TC/BC-70........................................................................................ +3.0 V to +3.6 V
MBM29LV400TC/BC-90/-12................................................................................. +2.7 V to +3.6 V
Operating ranges define those limits between which the functionality of the devices are guaranteed.
WARNING: The recommended operating conditions are required in to ensure the normal operation of ranges for
the semiconductor device. All of the device’s electrical characteristics are warranted when the device
is operated within these ranges.
Always use semiconductor devices within their recommended operating condition ranges. Operation
outside these ranges may adversely affect reliability and could result in device failure.
No warranty is made with respect to uses, operating conditions, or combinations not represented on
the data sheet. Users considering application outside the listed conditions are advised to contact their
FUJITSU representatives beforehand.
28
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ MAXIMUM OVERSHOOT
20 ns
20 ns
+0.6 V
–0.5 V
–2.0 V
20 ns
Figure 1
Maximum Negative Overshoot Waveform
20 ns
V CC +2.0 V
V CC +0.5 V
+2.0 V
20 ns
Figure 2
20 ns
Maximum Positive Overshoot Waveform 1
20 ns
+14.0 V
+13.0 V
V CC +0.5 V
20 ns
20 ns
*: This waveform is applied for A9, OE, and RESET.
Figure 3
Maximum Positive Overshoot Waveform 2
29
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ DC CHARACTERISTICS
Parameter
Symbol
Parameter Description
Test Conditions
Min.
Max.
Unit
ILI
Input Leakage Current
VIN = VSS to VCC, VCC = VCC Max.
–1.0
+1.0
µA
ILO
Output Leakage Current
VOUT = VSS to VCC, VCC = VCC Max.
–1.0
+1.0
µA
ILIT
A9, OE, RESET Inputs Leakage
Current
VCC = VCC Max.
A9, OE, RESET = 12.5 V
—
35
µA
CE = VIL, OE = VIH,
f=10 MHz
ICC1
Byte
22
—
Word
mA
25
VCC Active Current (Note 1)
CE = VIL, OE = VIH,
f=5 MHz
Byte
12
—
Word
mA
15
ICC2
VCC Active Current (Note 2)
CE = VIL, OE = VIH
—
35
mA
ICC3
VCC Current (Standby)
VCC = VCC Max., CE = VCC ± 0.3 V,
RESET = VCC ± 0.3 V
—
5
µA
ICC4
VCC Current (Standby, Reset)
VCC = VCC Max.,
RESET = VSS ± 0.3 V
—
5
µA
ICC5
VCC = VCC Max., CE = VSS ± 0.3 V,
VCC Current
RESET = VCC ± 0.3 V
(Automatic Sleep Mode) (Note 3)
VIN = VCC ± 0.3 V or VSS ± 0.3 V
—
5
µA
VIL
Input Low Level
—
–0.5
0.6
V
VIH
Input High Level
—
2.0
VCC+0.3
V
VID
Voltage for Autoselect and Sector
Protection (A9, OE, RESET)
(Note 4)
—
11.5
12.5
V
VOL
Output Low Voltage Level
IOL = 4.0 mA, VCC = VCC Min.
—
0.45
V
IOH = –2.0 mA, VCC = VCC Min.
2.4
—
V
VCC–0.4
—
V
2.3
2.5
V
VOH1
Output High Voltage Level
VOH2
VLKO
Low VCC Lock-Out Voltage
IOH = –100 µA
—
Notes: 1. The ICC current listed includes both the DC operating current and the frequency dependent component
(at 10 MHz).
2. ICC active while Embedded Algorithm (program or erase) is in progress.
3. Automatic sleep mode enables the low power mode when address remain stable for 150 ns.
4. (VID – VCC) do not exceed 9 V.
30
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ AC CHARACTERISTICS
• Read Only Operations Characteristics
Parameter
Symbols
Description
-70
(Note)
-90
(Note)
-12
(Note)
Unit
Min.
70
90
120
ns
Test Setup
JEDEC
Standard
tAVAV
tRC
Read Cycle Time
tAVQV
tACC
Address to Output Delay
CE = VIL
Max.
OE = VIL
70
90
120
ns
tELQV
tCE
Chip Enable to Output Delay
OE = VIL Max.
70
90
120
ns
tGLQV
tOE
Output Enable to Output Delay
—
Max.
30
35
50
ns
tEHQZ
tDF
Chip Enable to Output High-Z
—
Max.
25
30
30
ns
tGHQZ
tDF
Output Enable to Output High-Z
—
Max.
25
30
30
ns
tAXQX
tOH
Output Hold Time From
Addresses,
CE or OE, Whichever Occurs First
—
Min.
0
0
0
ns
—
tREADY
RESET Pin Low to Read Mode
—
Max.
20
20
20
µs
—
tELFL
tELFH
CE or BYTE Switching Low or
High
—
Max.
5
5
5
ns
—
Note: Test Conditions:
Output Load: 1 TTL gate and 30 pF (MBM29LV400TC/BC-70)
1 TTL gate and 100 pF (MBM29LV400TC/BC-90/-12)
Input rise and fall times: 5 ns
Input pulse levels: 0.0 V to 3.0 V
Timing measurement reference level
Input: 1.5 V
Output:1.5 V
3.3 V
IN3064
or Equivalent
2.7 kΩ
Device
Under
Test
6.2 kΩ
CL
Diodes = IN3064
or Equivalent
Notes: CL = 30 pF including jig capacitance (MBM29LV400TC/BC-70)
CL = 100 pF including jig capacitance (MBM29LV400TC/BC-90/-12)
Figure 4
Test Conditions
31
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
• Write/Erase/Program Operations
Parameter Symbols
MBM29LV400TC/BC
Description
JEDEC
Standard
tAVAV
tWC
Write Cycle Time
tAVWL
tAS
tWLAX
Unit
-70
-90
-12
Min.
70
90
120
ns
Address Setup Time
Min.
0
0
0
ns
tAH
Address Hold Time
Min.
45
45
50
ns
tDVWH
tDS
Data Setup Time
Min.
35
45
50
ns
tWHDX
tDH
Data Hold Time
Min.
0
0
0
ns
—
tOES
Output Enable Setup Time
Min.
0
0
0
ns
Min.
0
0
0
ns
tOEH
Output
Enable Hold
Time
Read
—
Toggle and Data Polling
Min.
10
10
10
ns
tGHWL
tGHWL
Read Recover Time Before Write
Min.
0
0
0
ns
tGHEL
tGHEL
Read Recover Time Before Write
Min.
0
0
0
ns
tELWL
tCS
CE Setup Time
Min.
0
0
0
ns
tWLEL
tWS
WE Setup Time
Min.
0
0
0
ns
tWHEH
tCH
CE Hold Time
Min.
0
0
0
ns
tEHWH
tWH
WE Hold Time
Min.
0
0
0
ns
tWLWH
tWP
Write Pulse Width
Min.
35
45
50
ns
tELEH
tCP
CE Pulse Width
Min.
35
45
50
ns
tWHWL
tWPH
Write Pulse Width High
Min.
25
25
30
ns
tEHEL
tCPH
CE Pulse Width High
Min.
25
25
30
ns
tWHWH1
tWHWH1
Byte Programming Operation
Typ.
8
8
8
µs
tWHWH2
tWHWH2
Sector Erase Operation (Note 1)
Typ.
1
1
1
sec
—
tVCS
VCC Setup Time
Min.
50
50
50
µs
—
tVIDR
Rise Time to VID (Note 2)
Min.
500
500
500
ns
—
tVLHT
Voltage Transition Time (Note 2)
Min.
4
4
4
µs
—
tWPP
Write Pulse Width (Note 2)
Min.
100
100
100
µs
—
tOESP
OE Setup Time to WE Active (Note 2)
Min.
4
4
4
µs
—
tCSP
CE Setup Time to WE Active (Note 2)
Min.
4
4
4
µs
—
tRB
Recover Time From RY/BY
Min.
0
0
0
ns
—
tRP
RESET Pulse Width
Min.
500
500
500
ns
—
tRH
RESET Hold Time Before Read
Min.
200
200
200
ns
(Continued)
32
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
(Continued)
Parameter Symbols
MBM29LV400TC/BC
Description
JEDEC
Standard
—
tFLQZ
BYTE Switching Low to Output High-Z
—
tFHQV
—
—
Unit
-70
-90
-12
Max.
30
35
50
ns
BYTE Switching High to Output Active
Min.
30
35
50
ns
tBUSY
Program/Erase Valid to RY/BY Delay
Max.
90
90
90
ns
tEOE
Delay Time from Embedded Output Enable
Max.
30
35
50
ns
Notes: 1. This does not include the preprogramming time.
2. This timing is for Sector Protection operation.
33
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ SWITCHING WAVEFORMS
• Key to Switching Waveforms
WAVEFORM
INPUTS
OUTPUTS
Must Be
Steady
Will Be
Steady
May
Change
from H to L
Will Be
Changing
from H to L
May
Change
from L to H
Will Be
Changing
from L to H
“H” or “L”
Any Change
Permitted
Changing
State
Unknown
Does Not
Apply
Center Line is
HighImpedance
“Off” State
t RC
Addresses
Addresses Stable
t ACC
CE
t OE
t DF
OE
t OEH
WE
t CE
Outputs
High-Z
Figure 5.1
34
Output Valid
AC Waveforms for Read Operations
High-Z
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
t RC
Addresses
Addresses Stable
t ACC
t RH
RESET
t OH
High-Z
Outputs
Figure 5.2
Output Valid
AC Waveforms for Hardware Reset/Read Operations
35
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Data Polling
3rd Bus Cycle
Addresses
555H
t WC
PA
t AS
PA
t RC
t AH
CE
t CH
t CS
t CE
OE
t GHWL
t WP
t WPH
t OE
t WHWH1
WE
t OH
t DS
t DH
A0H
Data
Notes: 1.
2.
3.
4.
5.
6.
DQ 7
D OUT
D OUT
PA is address of the memory location to be programmed.
PD is data to be programmed at byte address.
DQ7 is the output of the complement of the data written to the device.
DOUT is the output of the data written to the device.
Figure indicates last two bus cycles out of four bus cycle sequence.
These waveforms are for the ×16 mode. (The addresses differ from ×8 mode.)
Figure 6
36
PD
AC Waveforms for Alternate WE Controlled Program Operations
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
3rd Bus Cycle
Addresses
Data Polling
PA
555H
t WC
t AS
PA
t AH
WE
t WS
t WH
OE
t GHEL
t CP
t CPH
t WHWH1
CE
t DS
t DH
Data
Notes: 1.
2.
3.
4.
5.
6.
A0H
PD
DQ 7
D OUT
PA is address of the memory location to be programmed.
PD is data to be programmed at byte address.
DQ7 is the output of the complement of the data written to the device.
DOUT is the output of the data written to the device.
Figure indicates last two bus cycles out of four bus cycle sequence.
These waveforms are for the ×16 mode. (The addresses differ from ×8 mode.)
Figure 7
AC Waveforms for Alternate CE Controlled Program Operations
37
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Addresses
2AAH
555H
t WC
t AS
555H
555H
2AAH
SA
t AH
CE
t CS
t CH
OE
t GHWL
t WP
t WPH
WE
t DS
AAH
Data
t DH
55H
80H
AAH
55H
10H/
30H
t VCS
V CC
Notes: 1. SA is the sector address for Sector Erase. Addresses = 555H (Word), AAAH (Byte)
for Chip Erase.
2. These waveforms are for the ×16 mode. (The addresses differ from ×8 mode.)
Figure 8
38
AC Waveforms Chip/Sector Erase Operations
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
CE
t CH
t OE
t DF
OE
t OEH
WE
t CE
*
DQ7
Data
High-Z
DQ7 =
Valid Data
DQ7
t WHWH1 or 2
DQ0 to DQ6
Data
DQ0 to DQ6 = Output Flag
High-Z
DQ0 to DQ6
Valid Data
t EOE
* : DQ7 = Valid Data (The device has completed the Embedded operation).
Figure 9
AC Waveforms for Data Polling during Embedded Algorithm Operations
CE
tOEH
WE
tOES
OE
*
DQ 6
Data
DQ 6 = Toggle
DQ 6 =
Stop Toggling
DQ 6 = Toggle
Valid
tOE
* : DQ6 stops toggling (The device has completed the Embedded operation).
Figure 10
AC Waveforms for Toggle Bit I during Embedded Algorithm Operations
39
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
CE
The rising edge of the last WE signal
WE
Entire programming
or erase operations
RY/BY
t BUSY
Figure 11
RY/BY Timing Diagram during Program/Erase Operations
WE
RESET
tRP
t RB
RY/BY
tREADY
Figure 12
40
RESET/RY/BY Timing Diagram
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
CE
BYTE
Data Output
(DQ0 to DQ7)
DQ0 to DQ14
tELFH
DQ15/A-1
Data Output
(DQ0 to DQ14)
tFHQV
DQ15
A-1
Figure 13
Timing Diagram for Word Mode Configuration
CE
BYTE
DQ0 to DQ14
tELFL
DQ15/A-1
Data Output
(DQ0 to DQ7)
Data Output
(DQ0 to DQ14)
DQ15
A-1
tFLQZ
Figure 14
Timing Diagram for Byte Mode Configuration
The falling edge of the last write signal
CE or WE
Input
Valid
BYTE
tSET
(tAS)
Figure 15
tHOLD (tAH)
BYTE Timing Diagram for Write Operations
41
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
A17, A16, A15
A14, A13, A12
SAX
SAY
A0
A1
A6
12 V
3V
A9
t VLHT
12 V
3V
OE
t VLHT
t VLHT
t VLHT
t WPP
WE
t OESP
t CSP
CE
Data
01H
t VCS
t OE
VCC
SAX : Sector Address for initial sector
SAY : Sector Address for next sector
Note: A-1 is VIL on byte mode.
Figure 16
42
AC Waveforms for Sector Protection Timing Diagram
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
VCC
tVIDR
tVLHT
tVCS
12 V
3V
3V
RESET
CE
WE
tVLHT
tVLHT
Program or Erase Command Sequence
RY/BY
Unprotection Period
Figure 17
Enter
Embedded
Erasing
WE
Temporary Sector Unprotection Timing Diagram
Erase
Suspend
Erase
Enter Erase
Suspend Program
Erase Suspend
Read
Erase
Suspend
Program
Erase
Resume
Erase Suspend
Read
Erase
Erase
Complete
DQ6
DQ2
Toggle
DQ2 and DQ6
with OE
Note: DQ2 is read from the erase-suspended sector.
Figure 18
DQ2 vs. DQ6
43
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
VCC
tVCS
RESET
tVLHT
tVIDR
Add
SPAX
SPAX
SPAY
A0
A1
A6
CE
OE
TIME-OUT
WE
Data
60H
60H
40H
01H
tOE
SPAX : Sector Address to be protected
SPAY : Next Sector Address to be protected
TIME-OUT : Time-Out window = 150 µs (min)
Figure 19
44
Extended Sector Protection Timing Diagram
60H
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
EMBEDDED ALGORITHMS
Start
Write Program Command
Sequence
(See below)
Data Polling Device
Increment Address
No
Last Address
?
Yes
Programming Completed
Program Command Sequence* (Address/Command):
555H/AAH
2AAH/55H
555H/A0H
Program Address/Program Data
* : The sequence is applied for × 16 mode.
The addresses differ from × 8 mode.
Figure 20
Embedded ProgramTM Algorithm
45
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
EMBEDDED ALGORITHMS
Start
Write Erase Command
Sequence
(See below)
Data Polling or Toggle Bit
Successfully Completed
Erasure Completed
Chip Erase Command Sequence*
(Address/Command):
Individual Sector/Multiple Sector*
Erase Command Sequence
(Address/Command):
555H/AAH
555H/AAH
2AAH/55H
2AAH/55H
555H/80H
555H/80H
555H/AAH
555H/AAH
2AAH/55H
2AAH/55H
555H/10H
Sector Address/30H
Sector Address/30H
Additional sector
erase commands
are optional.
Sector Address/30H
* : The sequence is applied for × 16 mode.
The addresses differ from × 8 mode.
Figure 21
46
Embedded EraseTM Algorithm
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Start
Read
(DQ 0 to DQ 7)
Addr. = VA
DQ 7 = Data?
VA = Byte address for programming
= Any of the sector addresses within
the sector being erased during
sector erase or multiple sector
erases operation
= Any of the sector addresses within
the sector not being protected
during chip erase
Yes
No
No
DQ 5 = 1?
Yes
Read
(DQ 0 to DQ 7)
Addr. = VA
DQ 7 = Data?
Yes
No
Fail
Pass
Note: DQ7 is rechecked even if DQ5 = “1” because DQ7 may change simultaneously with DQ5.
Figure 22
Data Polling Algorithm
47
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Start
Read
(DQ 0 to DQ 7)
Addr. = "H" or "L"
DQ 6 = Toggle
?
No
Yes
No
DQ 5 = 1?
Yes
Read
(DQ 0 to DQ 7)
Addr. = VA
DQ 6 = Toggle
?
No
Yes
Fail
Pass
Note: DQ6 is rechecked even if DQ5 = “1” because DQ6 may stop toggling at the same time as
DQ5 changing to “1” .
Figure 23
48
Toggle Bit Algorithm
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Start
Setup Sector Addr.
(A17, A16, A15, A14, A13, A12)
PLSCNT = 1
OE = V ID, A 9 = V ID,
A 6 = CE = V IL, RESET = V IH
A 0 = V IL, A 1 = V IH
Activate WE Pulse
Time out 100 µs
Increment PLSCNT
WE = V IH, CE = OE = V IL
(A 9 should remain V ID)
Read from Sector
(Addr. = SA, A 0 = V IL,
A 1 = V IH, A 6 = V IL)*
No
No
PLSCNT = 25?
Yes
Remove V ID from A 9
Write Reset Command
Data = 01H?
Yes
Yes
Protect Another Sector?
No
Device Failed
Remove V ID from A 9
Write Reset Command
Sector Protection
Completed
* : A-1 is V IL on byte mode.
Figure 24
Sector Protection Algorithm
49
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
Start
RESET = VID
(Note 1)
Perform Erase or
Program Operations
RESET = VIH
Temporary Sector
Unprotection Completed
(Note 2)
Notes: 1. All protected sectors are unprotected.
2. All previously protected sectors are protected once again.
Figure 25
50
Temporary Sector Unprotection Algorithm
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
FAST MODE ALGORITHM
Start
RESET = VID
Wait to 4 µs
Device is Operating in
Temporary Sector
Unprotection Mode
No
Extended Sector
Protection Entry?
Yes
To Setup Sector Protection
Write XXXH/60H
PLSCNT = 1
To Sector Protection
Write SPA/60H
(A0 = VIL, A1 = VIH, A6 = VIL)
Time Out 150 µs
Increment PLSCNT
To Verify Sector Protection
Write SPA/40H
(A0 = VIL, A1 = VIH, A6 = VIL)
Setup Next Sector Address
Read from Sector Address
(A0 = VIL, A1 = VIH, A6 = VIL)
No
No
PLSCNT = 25?
Yes
Data = 01H?
Yes
Remove VID from RESET
Write Reset Command
Protection Other Sector
?
No
Yes
Remove VID from RESET
Write Reset Command
Device Failed
Sector Protection
Completed
Figure 26
Extended Sector Protection Algorithm
51
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
FAST MODE ALGORITHM
Start
555H/AAH
Set Fast Mode
2AAH/55H
555H/20H
XXXH/A0H
Program Address/Program Data
Data Polling Device
Verify Byte?
No
In Fast Program
Yes
Increment Address
No
Last Address
?
Yes
Programming Completed
XXXH/90H
Reset Fast Mode
XXXH/F0H
* : The sequence is applied for × 16 mode.
The addresses differ from × 8 mode.
Figure 27
52
Embedded ProgramTM Algorithm for Fast Mode
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ ERASE AND PROGRAMMING PERFORMANCE
Limits
Parameter
Unit
Comments
Min.
Typ.
Max.
Sector Erase Time
—
1
10
sec
Word Programming Time
—
16
360
µs
Byte Programming Time
—
8
300
µs
Chip Programming Time
—
4.2
12.5
sec
100,000
—
—
cycles
Program/Erase Cycle
Excludes programming time
prior to erasure
Excludes system-level
overhead
Excludes system-level
overhead
—
■ TSOP(I) PIN CAPACITANCE
Parameter
Symbol
Parameter Description
Test Setup
CIN
Input Capacitance
VIN = 0
COUT
Output Capacitance
VOUT = 0
CIN2
Control Pin Capacitance
VIN = 0
Typ.
Max.
Unit
7.5
9
pF
8
10
pF
9.5
12.5
pF
Typ.
Max.
Unit
7.5
9
pF
8
10
pF
9.5
12.5
pF
Typ.
Max.
Unit
7.5
9
pF
8
10
pF
9.5
12.5
pF
Note: Test conditions TA = 25°C, f = 1.0 MHz
■ SOP PIN CAPACITANCE
Parameter
Symbol
Parameter Description
Test Setup
CIN
Input Capacitance
VIN = 0
COUT
Output Capacitance
VOUT = 0
CIN2
Control Pin Capacitance
VIN = 0
Note: Test conditions TA = 25°C, f = 1.0 MHz
■ FBGA PIN CAPACITANCE
Parameter
Symbol
Parameter Description
Test Setup
CIN
Input Capacitance
VIN = 0
COUT
Output Capacitance
VOUT = 0
CIN2
Control Pin Capacitance
VIN = 0
Note: Test conditions TA = 25°C, f = 1.0 MHz
53
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
■ PACKAGE DIMENSIONS
48-Pin plastic TSOP(I)
(FPT-48P-M19)
* Resin Protrusion. (Each Side: 0.15 (.006)Max)
LEAD No.
48
1
Details of "A" part
INDEX
0.15(.006)
MAX
0.35(.014)
MAX
"A"
0.15(.006)
0.25(.010)
25
24
20.00±0.20
(.787±.008)
* 18.40±0.20
(.724±.008)
* 12.00±0.20
(.472±.008)
11.50REF
(.460)
+0.10
1.10 −0.05
+.004
.043 −.002
(Mounting height)
0.50(.0197)
TYP
0.10(.004)
0.15±0.05
(.006±.002)
0.05(0.02)MIN
STAND OFF
0.20±0.10
(.008±.004)
0.10(.004)
Dimensions in mm (inches)
1996 FUJITSU LIMITED F48029S-2C-2
C
M
0.50±0.10
(.020±.004)
19.00±0.20
(.748±.008)
48-Pin plastic TSOP(I)
(FPT-48P-M20)
* Resin Protrusion. (Each Side: 0.15 (.006)Max)
LEAD No.
48
1
Details of "A" part
INDEX
0.15(.006)
MAX
0.35(.014)
MAX
"A"
0.15(.006)
0.25(.010)
25
24
19.00±0.20
(.748±.008)
0.50±0.10
(.020±.004)
0.15±0.10
(.006±.002)
0.10(.004)
0.20±0.10
(.008±.004)
0.50(.0197)
TYP
0.10(.004)
M
0.05(0.02)MIN
STAND OFF
+0.10
* 18.40±0.20
(.724±.008)
20.00±0.20
(.787±.008)
C
54
1996 FUJITSU LIMITED F48030S-2C-2
11.50(.460)REF
1.10 −0.05
+.004
.043 −.002
(Mounting height)
* 12.00±0.20(.472±.008)
Dimensions in mm (inches)
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
44-pin plastic SOP
(FPT-44P-M16)
+0.25
+.010
2.35±0.15(.093±.006)
(Mounting
(Mountingheight)
height)
28.45 –0.20 1.120 –.008
44
0.80±0.20
(.031±.008)
23
13.00±0.10 16.00±0.20
(.512±.004) (.630±.008)
14.40±0.20
(.567±.008)
INDEX
LEAD No.
1
22
1.27(.050)TYP
0.10(.004)
+0.10
0.40 –0.05
.016
+.004
–.002
0.15±0.05
(.006±.002)
+0.10
Ø0.13(.005)
M
+.004
0.20 –0.15 .008 –.006
(Stand off)
26.67(1.050)REF
C
1998 FUJITSU LIMITED F44023S-4C-4
Dimensions in mm (inches)
55
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
48-pin plastic FBGA
(BGA-48P-M01)
5.60(.221)
1.20(.047)MAX
(Mounting height)
0.35±0.10(.014±.004)
(Stand off)
8.00±0.20(.315±.008)
0.80(.031)NOM
6
INDEX
6.00±0.20
(.236±.008)
5
0.80(.031)
NOM
4.00(.157)
4
3
2
1
H
G
F
E
D
Ø0.40±0.10
(.016±.004)
C
B
A
Ø0.08(.003)
M
0.10(.004)
C
56
1997 FUJITSU LIMITED B48001S-1C-2
Dimensions in mm (inches)
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
48-pin plastic CSOP
(LCC-48P-M03)
48
"A"
25
10.00±0.20
(.394±.008)
9.50±0.10
(.374±.004)
INDEX
INDEX
0.05
+0.05
–0
+.002
–.0
.002
(Stand off)
LEAD No.
1
24
10.00±0.10(.394±.004)
0.95±0.05(.037±.002)
(Mounting height)
0.22±0.035
(.009±.001)
Details of "A" part
0°~10°
0.40(.016)
TYP
0.08(.003)
0.65(.026)
1.15(.045)
9.20(.362)REF
C
1998 FUJITSU LIMITED C48056S-1C-1
Dimensions in mm (inches)
57
MBM29LV400TC-70/-90/-12/MBM29LV400BC-70/-90/-12
FUJITSU LIMITED
For further information please contact:
Japan
FUJITSU LIMITED
Corporate Global Business Support Division
Electronic Devices
KAWASAKI PLANT, 4-1-1, Kamikodanaka
Nakahara-ku, Kawasaki-shi
Kanagawa 211-8588, Japan
Tel: 81(44) 754-3763
Fax: 81(44) 754-3329
http://www.fujitsu.co.jp/
North and South America
FUJITSU MICROELECTRONICS, INC.
Semiconductor Division
3545 North First Street
San Jose, CA 95134-1804, USA
Tel: (408) 922-9000
Fax: (408) 922-9179
Customer Response Center
Mon. - Fri.: 7 am - 5 pm (PST)
Tel: (800) 866-8608
Fax: (408) 922-9179
http://www.fujitsumicro.com/
Europe
FUJITSU MIKROELEKTRONIK GmbH
Am Siebenstein 6-10
D-63303 Dreieich-Buchschlag
Germany
Tel: (06103) 690-0
Fax: (06103) 690-122
http://www.fujitsu-ede.com/
Asia Pacific
FUJITSU MICROELECTRONICS ASIA PTE LTD
#05-08, 151 Lorong Chuan
New Tech Park
Singapore 556741
Tel: (65) 281-0770
Fax: (65) 281-0220
http://www.fmap.com.sg/
F9904
 FUJITSU LIMITED Printed in Japan
58
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and are not intended to be incorporated in devices for actual use.
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