PCF8564ACX9 Просмотр технического описания (PDF) - NXP Semiconductors.

Номер в каталоге

Компоненты Описание

производитель

PCF8564ACX9

Real time clock and calendar

NXP Semiconductors. 

PCF8564A

Real time clock and calendar

Rev. 02 — 30 September 2010

Product data sheet

1. General description

The PCF8564A is a CMOS1 real-time clock and calendar optimized for low power

consumption. A programmable clock output, interrupt output and voltage low detector are

also provided. All addresses and data are transferred serially via a two-line bidirectional

I2C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is

incremented automatically after each written or read data byte.

2. Features and benefits

„ Provides year, month, day, weekday, hours, minutes, and seconds based on a

32.768 kHz quartz crystal

„ Century flag

„ Wide clock operating voltage: 1.0 V to 5.5 V

„ Low back-up current typical 250 nA at 3.0 V and 25 °C

„ 400 kHz two-wire I2C interface (1.8 V to 5.5 V)

„ Low-voltage detector

„ Alarm and timer functions

„ Two integrated oscillator capacitors

„ Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and

1 Hz)

„ Internal Power-On Reset (POR)

„ I2C slave address: read A3h, write A2h

3. Applications

„ Mobile telephones

„ Portable instruments

„ Electronic metering

„ Battery powered products

1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 20.

Share Link: