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PCA1677U Datasheet(PDF) 2 Page - NXP Semiconductors |
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PCA1677U Datasheet(HTML) 2 Page - NXP Semiconductors |
2 / 12 page 1998 Apr 03 2 Philips Semiconductors Product specification 32 kHz watch circuits using a silver-oxide or a 3 V lithium battery PCA167x series 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 • Power-on reset for fast testing • Various test modes for testing the mechanical parts of the watch and the IC. GENERAL DESCRIPTION The PCA167x series devices are CMOS integrated circuits specially suited for battery-operated, quartz-crystal-controlled wrist-watches, with a bipolar stepping motor. ORDERING INFORMATION Note 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. TYPE NUMBER PACKAGE(1) NAME DESCRIPTION VERSION PCA1672U − chip in tray − PCA1673U − chip in tray − PCA1675U − chip in tray − PCA1676U/10 − chip on foil − PCA1677U − chip in tray − PINNING SYMBOL PIN DESCRIPTION VSS 1 ground (0 V) TEST 2 test output OSC IN 3 oscillator input OSC OUT 4 oscillator output VDD 5 positive supply voltage M1 6 motor 1 output M2 7 motor 2 output RESET 8 reset input Fig.1 Pin configuration, PCA167xT, (PMFP8). 1 2 3 4 8 7 6 5 PCA167xT VSS TEST OSC IN OSC OUT RESET M2 M1 VDD MSA978 |
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Similar Description - PCA1677U |
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