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M29W400DT Datasheet(PDF) 23 Page - STMicroelectronics

Part # M29W400DT
Description  4 Mbit (512 Kb x 8 or 256 Kb x 16, boot block) 3 V supply Flash memory
PDF  48 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M29W400DT Datasheet(HTML) 23 Page - STMicroelectronics

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M29W400DT, M29W400DB
Command interface
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Table 5.
Commands, 16-bit mode, BYTE = VIH
(1)
Command
Bus Write operations
1st
2nd
3rd
4th
5th
6th
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read/Reset
1X
F0
3
555
AA
2AA
55
X
F0
Auto Select
3
555
AA
2AA
55
555
90
Program
4
555
AA
2AA
55
555
A0
PA
PD
Unlock Bypass
3
555
AA
2AA
55
555
20
Unlock Bypass
Program
2
X
A0
PA
PD
Unlock Bypass
Reset
2X
90
X
00
Chip Erase
6
555
AA
2AA
55
555
80
555
AA
2AA
55
555
10
Block Erase
6+
555
AA
2AA
55
555
80
555
AA
2AA
55
BA
30
Erase Suspend
1
X
B0
Erase Resume
1
X
30
1.
X Don’t care, PA Program Address, PD Program Data, BA Any address in the block. All values in the table are in
hexadecimal. The command interface only uses A-1; A0-A10 and DQ0-DQ7 to verify the commands; A11-A17, DQ8-DQ14
and DQ15 are Don't care. DQ15A-1 is A-1 when BYTE is VIL or DQ15 when BYTE is VIH.
Table 6.
Commands, 8-bit mode, BYTE = VIL
(1)
Command
Bus Write operations
1st
2nd
3rd
4th
5th
6th
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Addr
Data
Read/Reset
1X
F0
3
AAA
AA
555
55
X
F0
Auto Select
3
AAA
AA
555
55
AAA
90
Program
4
AAA
AA
555
55
AAA
A0
PA
PD
Unlock Bypass
3
AAA
AA
555
55
AAA
20
Unlock Bypass
Program
2X
A0
PA
PD
Unlock Bypass Reset
2
X
90
X
00
Chip Erase
6
AAA
AA
555
55
AAA
80
AAA
AA
555
55
AAA
10
Block Erase
6+
AAA
AA
555
55
AAA
80
AAA
AA
555
55
BA
30
Erase Suspend
1
X
B0
Erase Resume
1
X
30
1.
X Don’t care, PA Program Address, PD Program Data, BA Any address in the block. All values in the table are in
hexadecimal. The command interface only uses A-1; A0-A10 and DQ0-DQ7 to verify the commands; A11-A17, DQ8-DQ14
and DQ15 are Don't care. DQ15A-1 is A-1 when BYTE is VIL or DQ15 when BYTE is VIH.



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