Datasheet Details
| Part number | PCF2003 |
|---|---|
| Manufacturer | NXP Semiconductors |
| File Size | 410.72 KB |
| Description | CMOS |
| Datasheet |
 PCF2003 Datasheet
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General Description
The PCF2003 is a CMOS integrated circuit for battery operated wrist watches with a 32 kHz quartz crystal as timing element and a bipolar 1 Hz stepping motor.
The quartz crystal oscillator and the frequency divider are optimized for minimum power consumption.
Key Features
- Amplitude-regulated 32 kHz quartz crystal oscillator, with excellent frequency stability and high immunity to leakage currents.
- Electrically programmable time calibration with 1 ppm resolution stored in One Time Programmable (OTP) memory.
- The quartz crystal is the only external component connected.
- Very low supply current, typical 90 nA.
- One second output pulses for bipolar stepping motor.
- Five different programmable output periods (1 s to 30 s).
- Minimum power.