參數資料
型號: UPD4990A
廠商: NEC Corp.
英文描述: SERIAL I/O CALENDAR & CLOCK CMOS LSI
中文描述: 串行I / O日歷
文件頁數: 15/20頁
文件大?。?/td> 129K
代理商: UPD4990A
15
μ
PD4990A
APPLICATION
μ
PD4990A
μ
PD4175BC
RESET of
SYSTEM
Power Supply
Circuit
X
TAL
D
OUT
OE
TP
X
TAL
V
DD
D
7
C
0
STB
CLK
DIN
4
5
12
13
9
2
7
10
15
1
CS
C
1
C
2
32.768 kHz
C
G
= 20 pF
C
D
= 5 to 30 pF
10 k
10 k
DATA BUS
+5 V
+5 V
D
6
D
5
D
4
D
3
D
2
D
1
WR
RD
INT
D
0
Power Fail
Address Decoder
D
2
D
1
CLK
D
3
D
0
Q
2
Q
1
RESET
Q
3
Q
0
相關PDF資料
PDF描述
UPD4990AC SERIAL I/O CALENDAR & CLOCK CMOS LSI
UPD4990AG SERIAL I/O CALENDAR & CLOCK CMOS LSI
UPD63210 16-BIT D/A CONVERTER WITH BUILT-IN DIGITAL FILTER FOR AUDIO
UPD63210GT 16-BIT D/A CONVERTER WITH BUILT-IN DIGITAL FILTER FOR AUDIO
UPD63210L 16-BIT D/A CONVERTER WITH BUILT-IN DIGITAL FILTER FOR AUDIO
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