Pin Name
S2 S1 COM4 COM3 COM2 COM1 DBR4 DBR3 DBR2 DBR1 RESET HCTR VDD FMIN AMIN GND PLL OUT LPF OUT VT GND TEST 1 XIN
I/O
O O O O O O I I I O I I LCD segment output. LCD segment output. LCD commn output 4. LCD commn output 3. LCD commn output 2. LCD commn output 1. LCD reference voltage. LCD reference voltage. Voltage doubler boosting. Voltage doubler boosting. System reset input. Pulse out. Supply voltage terminal. FM oscillator signal input. AM oscillator signal input. Ground terminal. Phase comparison output. LPF output. VT input. Ground terminal. Connected to ground. Crystal 75kHz oscillator pin.
