Casio SF-5300B - Telephone Directory Operations; Inputting Telephone Directory Data

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6-3. VOLTAGE REGULATOR: REG1 (S-81253)
Output Voltage (VDD): 5.3 V ± 5%
6-4. VOLTAGE DETECTOR: DET1 (RH5VL46CA)
1
GND
2
VCC
3
VDD
VDD
GND
VCC
V
REF
R A
R B
1
2
3
R I
+
–
3
GND
1
OUT
2
VCC
1
2
3
VCC
OUT
GND
Input Voltage (VCC) Output Voltage (OUT)
VCC > 5.2 V 5.2 V
VCC < 5.2 V 0 V