PCA1672 Datasheet (NXP)

PCA1672, CMOS

GENERAL DESCRIPTION PCA167x series The PCA167x series devices are CMOS integrated circuits specially suited for battery-operated, quartz-crystal-controlled wrist-watches, with a bipolar stepping motor.

VERSION * * * * * 1.

Figure 1 and Chapter “Package out

PCA1672 Features

* 32 kHz oscillator, amplitude regulated with excellent frequency stability

* High immunity of the oscillator to leakage currents

* Very low current consumption; typically 150 nA

* Stop function for accurate timing

* Chopped motor pulses available

* Po