M295V400B-120M1R Ver la hoja de datos (PDF) - STMicroelectronics
Número de pieza
componentes Descripción
Fabricante
M295V400B-120M1R
STMicroelectronics
M295V400B-120M1R Datasheet PDF : 34 Pages
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M29F400T, M29F400B
Table 4. User Bus Operations (1)
Operation
EG
W
RP BYTE A0 A1 A6 A9 A12 A15
DQ15
A–1
DQ8-
DQ14
DQ0-DQ7
Read Word
VIL
VI L
VIH
VIH
VIH
A0
A1
A6
A9 A12 A15
Data
Output
Data
Output
Data
Output
Read Byte
VIL
VI L
VIH
VIH
VIL
A0
A1
A6
A9
A12 A15
Address
Input
Hi-Z
Data
Output
Write Word
VIL VIH
VIL
VIH
VIH
A0
A1
A6
A9 A12 A15 Data Input Data Input
Data
Input
Write Byte
VIL VIH
VIL
VIH
VIL
A0
A1
A6
A9
A12 A15
Address
Input
Hi-Z
Data
Input
Output Disable VIL VIH
VIH
VIH
X
XXXXXX
Hi-Z
Hi-Z
Hi-Z
Standby
VIH
X
X
VIH
X
XXXXXX
Hi-Z
Hi-Z
Hi-Z
Reset
XX
X
VIL
X
XXXXXX
Hi-Z
Hi-Z
Hi-Z
Block
Protection(2,4)
VIL VID VIL Pulse VIH
X
X
X
X VID X
X
X
X
X
Blocks
Unprotection(4)
VID
VID VIL Pulse VIH
X
X
X
X
VID VIH VIH
X
X
X
Block
Protection
Verify(2,4)
VIL
VI L
VIH
VIH
X
VIL VIH VIL VID A12 A15
X
Block
X
Protect
Status (3)
Block
Unprotection
VIL
VI L
VIH
VIH
X
VIL VIH VIH VID A12 A15
X
Verify(2,4)
Block
X
Protect
Status (3)
Block
Temporary
XX
X
VID
X
XXXXXX
X
X
X
Unprotection
Notes: 1. X = VIL or VIH
2. Block Address must be given on A12-A17 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
BYTE
A0
A1
Other DQ15
Addresses A–1
Manufact.
Word- Code
VIL VIL VIH
VIH
VIL VIL Don’t Care
0
wide Device M29F400T VIL VIL VIH
VIH
VIH VIL Don’t Care
0
Code M29F400B VIL VIL VIH
VIH
VIH VIL Don’t Care
0
Manufact.
Code
VIL VIL VIH
VIL
VIL
VIL
Don’t Care
Don’t
Care
Byte-
wide Device M29F400T VIL VIL VIH
VIL
VIH
VIL
Don’t Care
Don’t
Care
Code
M29F400B VIL VIL VIH
VIL
VIH
VIL
Don’t Care
Don’t
Care
DQ8 -
DQ14
00h
00h
00h
Hi-Z
Hi-Z
Hi-Z
DQ0 -
DQ7
20h
D5h
D6h
20h
D5h
D6h
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
A12 - A17
Block Address
Block Address
Other
Addresses
Don’t Care
Don’t Care
DQ0 - DQ7
01h
00h
8/34
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