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參數(shù)資料
| 型號(hào)： | UPD442000AGU-BC85X-9JH |
| 廠商： | NEC Corp. |
| 英文描述： | LJT 4C 4#20 PIN JAM RECP |
| 中文描述： | 200萬(wàn)位CMOS靜態(tài)RAM 256K字× 8位擴(kuò)展工作溫度 |
| 文件頁(yè)數(shù)： | 17/28頁(yè) |
| 文件大小： | 157K |
| 代理商： | UPD442000AGU-BC85X-9JH |
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Data Sheet M14669EJ7V0DS
17
μ
PD442000A-X
Write Cycle Timing Chart 3 (CE2 Controlled)
t
WC
t
AS
t
CW2
t
DW
t
DH
Data in
High-Z
Address (Input)
CE2 (Input)
I/O (Input)
High-Z
/CE1 (Input)
t
CW1
t
AW
t
WP
t
WR
/WE (Input)
Cautions 1. During address transition, at least one of pins /CE1, CE2, /WE should be inactivated.
2. Do not input data to the I/O pins while they are in the output state.
Remark
Write operation is done during the overlap time of a low level /CE1, /WE, and a high level CE2.
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