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PCA1462 NXP CMOS Datasheet


NXP
PCA1462
Part Number PCA1462
Manufacturer NXP (https://www.nxp.com/)
Description GENERAL DESCRIPTION PCA146x series The PCA146x 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 outline” show details of standard...
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 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...

Document Datasheet PCA1462 datasheet pdf (132.36KB)


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GENERAL DESCRIPTION PCA146x series The PCA146x 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 outline” show details of standard package, available for large orders only. Chapter “Chip dimensions and bonding pad locations” shows exact pad locations for other delivery formats. 1998 Apr 21 2 Philips Semiconductors Product specification 32 kHz watch circuits with adaptive motor pulse PINNING SYMBOL VSS TEST OSC IN OSC OUT VDD M1 M2 RESET PIN 1 2 3 4 5 6 7 8 DESCRIPTION ground (0 V) test output oscillator input oscillator ...
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