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參數(shù)資料
| 型號(hào)： | W25Z040A |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 128K×36bit Pipeline ZWS(Zero-Wait-State) SRAM(128K×36位無等待時(shí)間的管線CMOS同步靜態(tài)RAM) |
| 中文描述： | 128K的× 36bit管道ZWS（零等待狀態(tài)）的SRAM（128K的× 36位無等待時(shí)間的管線的CMOS同步靜態(tài)內(nèi)存） |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 136K |
| 代理商： | W25Z040A |
W25Z040A
Publication Release Date: April 1999
- 5 -
Revision A2
Write Table
READ/WRITE FUNCTION
WE
BW4
BW3
X
1
1
1
1
0
0
0
0
1
1
1
BW2
BW1
Read
Write/NOP
Write byte 1 I/O1
I/O9
Write byte 2 I/O10
I/O18
Write byte 2, byte 1
Write byte 3 I/O19
I/O27
Write byte 3, byte 1
Write byte 3, byte 2
Write byte 3, byte 2, byte 1
Write byte 4 I/O28
I/O36
Write byte 4, byte 1
Write byte 4, byte 2
1
0
0
0
0
0
0
0
0
0
0
0
X
1
1
1
1
1
1
1
1
0
0
0
X
1
1
0
0
1
1
0
0
1
1
0
X
1
0
1
0
1
0
1
0
1
0
1
Write byte 4, byte 2, byte 1
0
0
1
0
0
Write byte 4, byte 3
0
0
0
1
1
Write byte 4, byte 3, byte 1
0
0
0
1
0
Write byte 4, byte 3, byte 2
0
0
0
0
1
Write all bytes I/O1
I/O36
0
0
0
0
0
Read-Write-Read Operation
There is no wait state to be asserted for a read-write-read operation. i.e. there is no extra dead bus
cycle for read-write or write-read recovering and the bus utilization is 100%.
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