PCF8593

PCF8593 Low power clock and calendar Rev. 5 — 24 January 2020 Product data sheet 1. General description The PCF8593 is a CMOS1 clock and calendar circuit, optimized for low power consumption. Addresses and data are transferred serially via the two-line bidirectional I2C-bus. The built-in word address register is incremented automatically after each written or read data byte. The built-in 32.768 kHz oscillator circuit and the first 8 bytes of the RAM are used for the clock, calendar, and counter functions. The next 8 bytes can be programmed as alarm registers or used as free RAM space. 2. Features and benefits  I2C-bus interface operating supply voltage: 2.5 V to 6.0 V  Clock operating supply voltage 1.0 V to 6.0 V at 0 C to +70 C  8 bytes scratchpad RAM (when alarm not used)  Data retention voltage: 1.0 V to 6.0 V  External RESET input resets I2C interface only  Operating current (at fSCL = 0 Hz, 32 kHz time base, VDD = 2.0 V): typical 1 A  Clock function with four year calendar  Universal timer with alarm and overflow indication  24 hour or 12 hour format  32.768 kHz or 50 Hz time base  Serial input and output bus (I2C-bus)  Automatic word address incrementing  Programmable alarm, timer, and interrupt function  Space-saving SO8 package  Slave addresses: A3h for reading, A2h for writing 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 13. NXP Semiconductors PCF8593 Low power clock and calendar 3. Order...