PCF8583T SOP8 PCF8583 8583T PCF8583P

I²C Bus Interface: The PCF8583 utilizes a 2-wire bidirectional I²C bus for serial data and address transfer.Built-in RAM: Includes a 2048-bit static CMOS RAM, organized as 256 words by 8 bits.Clock and Calendar Functions: The first 8 bytes of the RAM are dedicated to clock, calendar, and counter functions, including hundredths of a second, seconds, minutes, hours, date, month, and year.Alarm and Timer Functions: The next 8 bytes can be programmed as alarm registers or used as free RAM space when the alarm function is not enabled. It supports dated, daily, weekday, or timer alarms.Programmable Interrupt Output: An open-drain interrupt output is available, triggered by alarm, timer overflow, or event counter alarm events.Built-in Oscillator: Features a 32.768 kHz oscillator circuit, which can be tuned with an external trimmer capacitor between OSCI and VDD. It also supports a 50 Hz clock mode or an event-counter mode.Low Operating Voltage and Current: The I²C-bus interface operates from 2.5 V to 6 V, and the clock can operate from 1.0 V to 6.0 V. The operating current is max 50 ?A when the clock is not running.Automatic Word Address Incrementing: Simplifies data reading and writing operations.

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