PCF8563 300 mW integrated components timer ic Real - time clock / calendar
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PCF8563 300 mW Electronic IC Chips timer ic Real - time clock / calendar
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PCF8563 Real-time clock/calendar
General description The PCF8563 is a CMOS real-time clock/calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are also provided. All address and data are transferred serially via a two-line bidirectional I2C-bus. Maximum bus speed is 400 kbits/s. The built-in word address register is incremented automatically after each written or read data byte.
Features ■ Provides year, month, day, weekday, hours, minutes and seconds based on 32.768 kHz quartz crystal ■ Century flag ■ Wide operating supply voltage range: 1.0 to 5.5 V ■ Low back-up current; typical 0.25 µA at VDD = 3.0 V and Tamb = 25 °C ■ 400 kHz two-wire I2C-bus interface (at VDD = 1.8 to 5.5 V) ■ Programmable clock output for peripheral devices: 32.768 kHz, 1024 Hz, 32 Hz and 1 Hz
■ Alarm and timer functions ■ Voltage-low detector ■ Integrated oscillator capacitor ■ Internal power-on reset ■ I 2C-bus slave address: read A3H; write A2H ■ Open drain interrupt pin.
Applications ■ Mobile telephones ■ Portable instruments ■ Fax machines ■ Battery powered products.
Quick reference data
Limiting values In accordance with the Absolute Maximum Rating System (IEC 60134).
Block diagram
Pin configuration
Device diode protection diagram
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| Product Tags: electronic integrated circuit linear integrated circuits |
