M29W004B View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M29W004B Datasheet PDF : 30 Pages
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M29W004T, M29W004B
Table 4. User Bus Operations (1)
Operation
E
G
W
RP A0 A1 A6 A9 A12 A15 DQ0-DQ7
Read Byte
VIL
VIL
VIH
VIH
A0
A1
A6
A9 A12 A15 Data Output
Write Byte
VIL
VIH
VIL
VIH
A0
A1
A6
A9 A12 A15 Data Input
Output Disable VIL
VIH
VIH
VIH
X
X
X
X
X
X
Hi-Z
Standby
VIH
X
X
VIH
X
X
X
X
X
X
Hi-Z
Reset
X
X
X
VIL
X
X
X
X
X
X
Hi-Z
Block
Protection(2,4)
VIL
VID VIL Pulse VIH
X
X
X
VID
X
X
X
Blocks
Unprotection(4)
VID
VID VIL Pulse VIH
X
X
X
VID
VIH
VIH
X
Block
Protection
Verify(2,4)
Block
VIL
VIL
VIH
VIH
VIL
VIH
VIL
VID A12 A15
Protect
Status (3)
Block
Block
Unprotection
Verify(2,4)
VIL
VIL
VIH
VIH
VIL
VIH
VIH
VID
A12
A15
Protect
Status (3)
Block
Temporary
X
X
X
VID
X
X
X
X
X
X
X
Unprotection
Notes: 1. X = VIL or VIH
2. Block Address must be given on A13-A18 bits.
3. See Table 6.
4. Operation performed on programming equipment.
Table 5. Read Electronic Signature (following AS instruction or with A9 = VID)
Org.
Code
Device
E
G
W
A0
A1
Other
Addresses
Manufact. Code
Word-
VIL
VIL
VIH
VIL
VIL
Don’t Care
wide
M29W004T
Device Code
VIL
VIL
VIH
VIH
VIL
Don’t Care
M29W004B VIL
VIL
VIH
VIH
VIL
Don’t Care
Manufact. Code
Byte-
VIL
VIL
VIH
VIL
VIL
Don’t Care
wide
M29W004T
Device Code
VIL
VIL
VIH
VIH
VIL
Don’t Care
M29W004B VIL
VIL
VIH
VIH
VIL
Don’t Care
DQ0-
DQ7
20h
EAh
EBh
20h
EAh
EBh
Table 6. Read Block Protection with AS Instruction
Code
E
G
W
A0
A1
Protected Block
VIL
VIL
VIH
VIL
VIH
Unprotected Block
VIL
VIL
VIH
VIL
VIH
A13-A18
Block Address
Block Address
Other
Addresses
Don’t Care
Don’t Care
DQ0-DQ7
01h
00h
7/30
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