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參數(shù)資料
| 型號： | V62C31864L-35F |
| 廠商： | MOSEL-VITELIC |
| 元件分類： | SRAM |
| 英文描述： | 8K X 8 STANDARD SRAM, 35 ns, PDSO28 |
| 封裝： | 0.330 INCH, SOP-28 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 68K |
| 代理商： | V62C31864L-35F |
8
V62C31864 Rev. 1.6 August 1998
MOSEL VITELIC
V62C31864
Switching Waveforms (Write Cycle)
Write Cycle 1 (WE Controlled)(4)
Write Cycle 2 (CE Controlled)(4)
NOTES:
1.
The internal write time of the memory is defined by the overlap of CE1 and CE2 active and WE low. Both signals must be active to
initiate and any one signal can terminate a write by going inactive. The data input setup and hold timing should be referenced to
the second transition edge of the signal that terminates the write.
2.
tWR is measured from the earlier of CE1 or WE going HIGH, or CE2 going LOW at the end of the write cycle.
3.
During this period, I/O pins are in the output state so that the input signals of opposite phase to the outputs must not be applied.
4.
OE = VIL or VIH. However it is recommended to keep OE at VIH during write cycle to avoid bus contention.
5.
If CE1 is LOW and CE2 is HIGH during this period, I/O pins are in the output state. Then the data input signals of opposite phase
to the outputs must not be applied to them.
6.
tCW is measured from CE1 going LOW or CE2 going HIGH to the end of write.
ADDRESS
OUTPUT
INPUT
CE1
CE2
WE
51864 12
tWC
tCW
(6)
tCW
(6)
tDW
tDH
tAW
tWR
(2)
tWHZ
tWP
(1)
tAS
ADDRESS
OUTPUT
High-Z
INPUT
CE1
CE2
WE
51864 13
tWC
tDW
tDH
tAW
tCW
(6)
tCW
(6)
tWR
(2)
tAS
(4)
(5)
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