參數(shù)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(shù): 3/20頁
文件大?。?/td> 129K
代理商: UPD4990A
3
μ
P
B
DATA
OUT
TP
MPX
MPX
SEC
D
M
-
HOUR
MIN
YEAR
DAY
SEC
1/2
15
1/2
6
C
3
'
C
2
'
C
1
'
C
0
'
C
3
' C
2
' C
1
' C
0
'
C
2
C
1
OE
CLK
CLK
CLKRH
DATA
IN
CS
STB
C
0
X
TAL
X
TAL
1 Hz
64 Hz
1 Hz
TEST
PS
OSC
CS
COMMAND
Register
D
D
Select signal
generator circuit
Time counter
48 Bit Shift Register
STOP
RESET
15 Stage Binary Divider
N-ch
OPEN DRAIN
MPX
PS
D/W
CS
TP
RH
:
:
:
:
:
:
Multiplexer
Preset
Day of the Week
Chip Select
Timing Pulse
Register Hold
相關(guān)PDF資料
PDF描述
UPD4990AC SERIAL I/O CALENDAR & CLOCK CMOS LSI
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UPD63210GT 16-BIT D/A CONVERTER WITH BUILT-IN DIGITAL FILTER FOR AUDIO
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