Bus operations
M29W320ET, M29W320EB
Data Inputs/Outputs
(1)
Table 2.
Bus operations, BYTE = V
IL
Address Inputs
DQ15A–1, A0-A20
Operation
E
G
W
DQ14-
DQ7-DQ0
DQ8
Bus Read
Bus Write
Output Disable
Standby
VIL
VIL
X
VIL
VIH
VIH
X
VIH Cell Address
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Data Output
Data Input
Hi-Z
VIL Command Address
VIH
X
X
X
VIH
Hi-Z
Read Manufacturer
code
A0 = VIL, A1 = VIL, A9 = VID,
Others VIL or VIH
VIL
VIL
VIL
VIL
VIL
VIL
VIH
VIH
VIH
Hi-Z
Hi-Z
Hi-Z
20h
56h (M29W320ET)
57h (M29W320EB)
A0 = VIH, A1 = VIL,
A9 = VID, Others VIL or VIH
Read Device code
81h (factory locked)
Extended memory
Block Verify code
A0 = VIH, A1 = VIH, A6 = VIL,
A9 = VID, Others VIL or VIH
01h (factory unlocked)
1. X = VIL or VIH
.
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