15
ICD-B17
4-7. IC BLOCK DIAGRAMS
VDD
VDD
OSCIN
OSCOUT
CE
INTR
32KOUT
SCLK
SO
SI
VSS
32 kHz
OUTPUT
CONTROL
COMPARATOR
W
COMPARATOR
D
ADDRESS
REGISTER
I/O
CONTROL
ADDRESS
DECODER
SHIFT
REGISTER
INTERRUPT
CONTROL
OSC
DETECT
VOLTAGE
DETECT
ALARM W REGISTER
(WEEK, MIN, HOUR)
ALARM D REGISTER
(MIN, HOUR)
DIV
OSC
DIVIDER
CORRECTION
9
10
8
7
6
2
3
4
5
1
TIMER COUNTER
SEC, MIN, HOUR, WEEK,
DAY, MONTH, YEAR
IC704 RS5C348A-E2
IC103 LM4890MMX
1
BIAS
3
4
2
8
6
5
7
SHUTDOWN
BYPASS
+IN
-IN
VO2
GND
VDD
VO1
