參數(shù)資料
型號(hào): UPD4991ACX
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(yè)數(shù): 2/32頁(yè)
文件大?。?/td> 133K
代理商: UPD4991ACX
μ
PD4991A
2
PIN CONFIGURATION (Top View)
1
CS
1
2
TP
1
3
TP
2
4
A
0
5
A
1
6
A
2
7
A
3
8
OE
9
V
SS
18 V
DD
17 X
IN
16 X
OUT
15 CS
2
14 D
3
13 D
2
12 D
1
11 D
0
10 WE
PD4991ACX
PD4991AGS
1
CS
1
2
TP
1
3
TP
2
4
A
0
5
NC
6
A
1
7
A
2
8
A
3
9
OE
10
V
SS
20 V
DD
19 X
IN
18 X
OUT
17 CS
2
16 D
3
15 NC
14 D
2
13 D
1
12 D
0
11 WE
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