M29W128FH, M29W128FL
Bus operations
Table 4. Block Protection, 8-bit mode
Address Inputs
Data Inputs/Outputs
Operation
(1)
E
G
W
RP
VPP/
WP
A22-
A12
A11-
A10
A9
A8-
A7
A6
A5- A3-
A4 A2
A1
A0
DQ15
A-1
DQ14
-DQ8
DQ7-DQ0
Verify
Extended
Memory
Block
Protection
Indicator
(bit DQ7)
VIL VIL VIH VIH VIH BA
VIH
X VID X VIL X VIL VIH
X
Verify Block
Protection
Status
Temporary
Block
Unprotect
(2)
X X X VID X
VIL
Valid
M29W128FH
88h (factory
locked)
08h (customer
lockable)
M29W128FL
98h (factory
locked)
18h (customer
Hi-Z lockable)
01h
(protected)
00h
(unprotected)
Data Input
1. X = VIL or VIH. BA any Address in the Block.
2. The RP pin unprotects all the blocks that have been previously protected using a High Voltage protection Technique.
Table 5. Bus operations, 16-bit mode
Operation(1)
E
G
W
RP
VPP/
WP
Bus Read
Bus Write
Output Disable
Standby
1. X = VIL or VIH.
VIL VIL VIH VIH VIH
VIL VIH VIL VIH VIH
X VIH VIH VIH VIH
VIH X X VIH VIH
Address Inputs
A22-A0
Cell Address
Command Address
X
X
Data Inputs/Outputs
DQ15A-1, DQ14-DQ0
Data Output
Data Input
Hi-Z
Hi-Z
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