Description
The PCA146x series devices are CMOS integrated circuits specially suited for battery-operated, quartz-crystal-controlled wrist-watches, with a bipolar stepping motor.
Features
- 32 kHz oscillator, amplitude regulated with excellent frequency stability.
- High immunity of the oscillator to leakage currents.
- Time calibration electrically programmable and reprogrammable (via EEPROM).
- A quartz crystal is the only external component required.
- Very low current consumption; typically 170 nA.
- Output for bipolar stepping motors of different types.
- Up to 50% reduction in motor current compared with conventional circuit.
PCA1463 Datasheet
