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參數資料
| 型號： | W25P012A |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | 32K×32 Burst Pipeline High-Speed CMOS Static RAM(32K×32位同步脈沖管線高速CMOS靜態RAM) |
| 中文描述： | 32K的管道爆裂× 32高速CMOS靜態RAM（32K的× 32位同步脈沖管線高速的CMOS靜態RAM）的 |
| 文件頁數： | 5/16頁 |
| 文件大小： | 308K |
| 代理商： | W25P012A |
W25P012A
Publication Release Date: September 1996
- 5 -
Revision A4
Truth Table, continued
CYCLE
ADDRESS
USED
Current
Current
Current
External
Next
Next
Current
Current
CE1
CE2
CE3
ADSP
ADSC
ADV
OE
DATA
WRITE*
Suspend Read
Begin Write
Begin Write
Begin Write
Continue Write
Continue Write
Suspend Write
Suspend Write
1
X
1
0
X
1
X
1
X
X
X
1
X
X
X
X
X
X
X
0
X
X
X
X
X
1
X
1
1
X
1
X
1
1
1
0
1
1
1
1
1
1
1
X
0
0
1
1
0
X
X
X
X
X
X
X
D-Out
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Read
Write
Write
Write
Write
Write
Write
Write
Notes:
1. For a detailed definition of read/write, see the Write Table below.
2. An "X" means don't care, "1" means logic high, and "0" means logic low.
3. The OE pin enables the data output but is not synchronous with the clock. All signals of the SRAM are sampled
to the bus clock except for the OE pin.
synchronous
4. On a write cycle that follows a read cycle, OE must be inactive prior to the start of write cycle to allow write data to setup
the SRAM. OE must also disable the output buffer prior to the finish of a write cycle to ensure the SRAM data hold timings
are met.
WRITE TABLE
READ/WRITE FUNCTION
Read
Read
Write byte 1 I/O1
I/O8
Write byte 2 I/O9
I/O16
Write byte 2, byte 1
Write byte 3 I/O17
I/O24
Write byte 3, byte 1
Write byte 3, byte 2
Write byte 3, byte 2, byte 1
Write byte 4 I/O25
I/O32
Write byte 4, byte 1
Write byte 4, byte 2
Write byte 4, byte 2, byte 1
Write byte 4, byte 3
Write byte 4, byte 3, byte 1
Write byte 4, byte 3, byte 2
GW
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
BWE
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
BW4
X
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
BW3
X
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
BW2
X
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
BW1
X
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
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相關代理商/技術參數 |
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| W25P022A | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 32 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM |
| W25P022A-6 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 32 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM |
| W25P022A-7 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 32 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM |
| W25P022AD-6 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 32 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM |
| W25P022AD-7 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:64K X 32 BURST PIPELINED HIGH-SPEED CMOS STATIC RAM |
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