NXP Semiconductors PCA2002
The PCA2002 is a CMOS1 integrated circuit for battery operated wrist watches with a 32 kHz quartz crystal as the timing element and a bipolar stepping motor. The quartz crystal oscillator and the frequency divider are optimized for minimum current consumption. The output period and the output pulse width can be programmed.| Part No. | PCA2002 |
|---|---|
| Datasheet | PCA2002 Download |
| Manufacturer |  NXP Semiconductors |
| Description | CMOS |
| Buy | Stock & Price |
FEATURES AND BENEFITS
● 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 required
● Very low current consumption: typically 90 nA
● Output pulses for bipolar stepping motors
● Five different programmable output periods (1 s to 30 s)
● Output pulse width programmable between 1 ms and 8 ms
● Full or chopped motor pulse and pulse stretching, selectable
● Stop function for accurate time setting and current saving during shelf life
● Test mode for accelerated testing of the mechanical parts of the watch
● Test bits for type recognition 3.
APPLICATIONS
● Driver circuits for bipolar stepping motors● High immunity motor drive circuits
● High production volumes 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 14.
