PCF8563 Datasheet, PDF (1/23 Pages) NXP Semiconductors – Real-time clock/calendar

TIGER ELECTRONIC CO.,LTD
Real-time Clock/Calendar PCF8563
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 I ² C-bus. Maximum bus speed is 400
kbits/s. The built-in word address register is
incremented automatically after each written or read
data byte.
DIP8
SOP8
F E AT U R E S
TSSOP8
Provides year, month, day, weekday, hours, minutes and seconds based on32.768 kHz
quartz crystal
Century flag
Wide operating supply voltage range: 1.0 to 5.0 V
Low back-up current; typical 0.25 µA at V _DD = 3.0 V and Tamb = 25 °C
400 kHz two-wire I² C-bus interface (at V_DD = 1.8 to 5.0 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
I² C-bus slave address: read A3H; write A2H
Open drain interrupt pin.
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