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Pin No.
Name
64,65
OSC I/O
67,69~71
V1 ~ 4
68
NC
72
INTO
73
STNT
74
VLCD
75 ~ 171
S0 ~ 95
172 ~199
C5 ~ 32
168,200
NC
6-2. VOLTAGE REGULATOR: REG1 (S-81253)
Output Voltage (VDD): 5.3 V ± 5%
VCC
2
GND
1
6-3. VOLTAGE DETECTOR: DET1 (RH5VL46CA)
I/O
I/O
Clock terminal
Voltage for LCD drive
OFF: 0 V
-
Not used
In
Low battery detection
-
GND 0 V
In
Power supply terminal (+5.3 V)
Out
Segment signal for display
Out
Common signal for display
-
Not used
+
–
V
REF
2
VCC
1
3
GND
—
—
13
Description
ON–V1: 0.64 Minimum ~ 1.29 Maximum V
V2: 1.29 Minimum ~ 2.56 Maximum V
V3: 3.99 Minimum ~ 2.71 Maximum V
V4: 4.64 Minimum ~ 3.99 Maximum V
INTO < 5.2 V => No power on
VDD
3
R
A
R
I
R
B
OUT
1
OUT
Input Voltage (VCC)
VCC > 5.2 V
VCC < 5.2 V
1
2
3
GND
VCC
VDD
3
2
VCC
GND
Output Voltage (OUT)
5.2 V
0 V
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