M29W640FB STMICROELECTRONICS [STMicroelectronics], M29W640FB Datasheet - Page 17

• Manufacturer Part Number: M29W640FB
• Description: 64 Mbit (8Mb x8 or 4Mb x16, Page, Boot Block) 3V Supply Flash Memory
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

M29W640FT, M29W640FB
Table 3.
1. X = V
Bus Read
Bus Write
Output Disable
Standby
Read Manufacturer
Code
Read Device Code
Read Extended
Memory Block Verify
Code
Read Block
Protection Status
Operation
IL
or V
Bus Operations, BYTE = V
IH
.
V
V
V
V
V
V
V
E
X
IH
IL
IL
IL
IL
IL
IL
V
V
V
V
V
V
V
G
X
IH
IH
IL
IL
IL
IL
IL
V
V
V
V
V
V
V
W
X
IH
IH
IH
IH
IH
IH
IL
IL
Cell Address
Command Address
X
X
A0-A3 = V
A9 = V
A0 = V
A6 = V
Others V
A0 -A1 = V
A6 = V
Others V
A0,A2,A3, A6= V
A1= V
A12-A21 = Block Address,
Others V
DQ15A–1, A0-A21
IH
Address Inputs
ID
IH
IL
IL
, A9 = V
, A9 = V
, A9 = V
, Others V
, A1-A3= V
IL
IL
IL
IL
IH
or V
or V
or V
, A6 = V
, A2-A3= V
IH
IH
IH
ID
ID
ID
IL
,
,
,
,
IL
IL
IL
or V
,
,
IL
IH
,
DQ14-DQ8
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Data Inputs/Outputs
EDh (M29W640FT)
FDh (M29W640FB)
80h (factory locked)
00h (unprotected)
00h (Customer
01h (protected)
Data Output
Data Input
DQ7-DQ0
Lockable)
3 Bus operations
Hi-Z
Hi-Z
20h
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