17
NW-E50/E70
• IC BLOCK DIAGRAMS
IC301
NJM2776RB2 (TE2) (MAIN board)
1
2
3
4
5
10
9
6
7
V+2
O
OUT1
IN1
STANDBY
V+1
VREF
OUT2
GND
STANDBY
8
IN2
BIAS
REG
IC700
RS5C348A-E2-FB (MAIN board)
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
LDR
NC
NC
OCL1
OCL2
NC
OCL3
OCE
ENA2
ENA1
NC
VDD
NC
OUT2
OUT1
NC
NC
CHV
OUTCOM
VSS
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
OSCILLATOR
OSCILLATOR
DIVIDER
DIVIDER
CONTROL
LOGIC
HIGH VOLTAGE SWITCHING
CIRCUIT
IC801
SM8145AB-G-EL (DISPLAY board)
