pcf8563t 时钟ic nxp恩智浦 通信ic

nxp恩智浦 pcf8563t sop8 进口原装正品，不免费样品，订货以一管50只为标准；详细参数如下介绍。

1. 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.

2. features

n 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 ma 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
i2c-bus slave address: read a3h; write a2h
open drain interrupt pin.

3. applications

n mobile telephones
n portable instruments
n fax machines
n battery powered products.