PCA1463
FEATURES
- 32 k Hz 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 ponent required
- Very low current consumption; typically 170 n A
- Output for bipolar stepping motors of different types
- Up to 50% reduction in motor current pared with conventional circuits, by self adaption of the motor pulse width to match the required torque of the motor
- No loss of motor steps possible because of on-chip detection of the induced motor voltage
- Detector for lithium or silver-oxide battery voltage levels
- Indication for battery end-of-life
- Stop function for accurate timing
- Power-on reset for fast testing
- Various test modes for testing the mechanical parts of the watch and the IC. ORDERING INFORMATION TYPE NUMBER PCA1461U PCA1461U/10 PCA1462U PCA1462U/7 PCA1462U/10 PCA1463U PCA1463U/10 PCA1465U/10...
