參數(shù)資料
型號: UPD4991A
廠商: NEC Corp.
英文描述: 4-BIT PARALLEL I/O CALENDAR CLOCK
中文描述: 4位并行I / O日歷鐘
文件頁數(shù): 7/32頁
文件大?。?/td> 133K
代理商: UPD4991A
μ
PD4991A
7
Write cycle timing 1
Write cycle timing 2 (OE = V
IL
)
CS
OE
ADDRESS
WE
D
OUT
D
IN
t
WC
t
AW
t
CW
t
WP
t
WR
t
AS
t
OHZ
t
DW
t
DH
CS
ADDRESS
WE
D
OUT
D
IN
t
WC
t
AW
t
CW
t
WP
t
WR
t
AS
t
WHZ
t
DW
t
DH
t
OW
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