Philips Semiconductors
32 kHz watch circuits with EEPROM
Product specification
PCA16xx series
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
• Detector for silver-oxide or lithium battery voltage levels
• Indication for battery end-of-life
• Stop function for accurate timing
• Power-on reset for fast testing
• Various test modes for testing the mechanical parts of
the watch and the IC.
GENERAL DESCRIPTION
The PCA16xx series devices are CMOS integrated circuits
specially suited for battery-operated,
quartz-crystal-controlled wrist-watches, with bipolar
stepping motors.
ORDERING INFORMATION
TYPE
NUMBER
PCA1 601U/10
PCA1 602T
PCA1 603U/7
PCA1 604U
PCA1 604U/10
PCA1 605U/7
PCA1 606U/10
PCA1 607U
PCA1 608U
PCA1 611U
PCA1 621U/7
PCA1 621U/10
PCA1 622U
PCA1 623U/7
PCA1 624U
PCA1 625U/7
PCA1 626U
PCA1627U/7
PCA1 628U
PCA1 629U/7
NAME
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PMFP8
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−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
PACKAGE(1)
DESCRIPTION
chip on foil
plastic micro flat package; 8 leads (straight)
chip with bumps on tape
chip in tray
chip on foil
chip with bumps on tape
chip on foil
chip in tray
chip in tray
chip in tray
chip with bumps on tape
chip on foil
chip in tray
chip with bumps on tape
chip in tray
chip with bumps on tape
chip in tray
chip with bumps on tape
chip in tray
chip with bumps on tape
VERSION
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SOT144-1
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
Note
1. Figure 1 and Chapter “Package outline” show details of standard package, available for specified devices and for
large orders only.
Chapter “Chip dimensions and bonding pad locations” shows exact pad locations for other delivery formats.
1997 Dec 12
2
