參數(shù)資料
型號: M29DW640F70N6F
廠商: STMICROELECTRONICS
元件分類: PROM
英文描述: 4M X 16 FLASH 3V PROM, 70 ns, PDSO48
封裝: 12 X 20 MM, LEAD FREE, PLASTIC, TSOP-48
文件頁數(shù): 11/74頁
文件大?。?/td> 556K
代理商: M29DW640F70N6F
M29DW640F
Bus operations
Table 4.
Bus operations, BYTE = VIL
(1)
Operation
E
G
W
Address Inputs
Data Inputs/Outputs
A21-
A12
A3
A2
A1
A0
Others,
DQ15A-1
DQ14
-DQ8
DQ7-DQ0
Bus Read
VIL
VIL VIH
Cell address
Hi-Z
Data Output
Bus Write
VIL VIH VIL
Command address
Hi-Z
Data Input
Output Disable
X
VIH VIH
XHi-Z
Hi-Z
Standby
VIH
XX
X
Hi-Z
Read Manufacturer
Code
VIL
VIL VIH
Bank
addrs
VIL
A6 = VIL
A9 = VID,
others =X
Hi-Z
20h
Read Device Code
(Cycle 1)
VIL
VIL VIH
VIL
VIH
Hi-Z
7Eh
Read Device Code
(Cycle 2)
VIL
VIL VIH
VIH
VIL
Hi-Z
02h
Read Device Code
(Cycle 3)
VIL
VIL VIH
VIH
Hi-Z
01h
Extended Block
Indicator Bit
(DQ7)
VIL
VIL VIH
Bank
A
VIL
VIH
Hi-Z
80h (factory locked)
00h (not locked)
Block Protection
Verification
VIL
VIL VIH
Block
addrs
VIL
VIH
VIL
Hi-Z
01h (protected)
00h (unprotected)
1.
X = VIL or VIH.
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