Low power clock and calendar

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 os I2C-bus interface operating supply voltage: 2.5 V to 6.0 V\nClock operating supply voltage 1.0 V to 6.0 V at 0 ℃ to +70 ℃\n8 bytes scratchpad RAM (when alarm not used)\nData retention voltage: 1.0 V to 6.0 V\nExternal RESET input resets I2C interface only\nOperating current (at fSCL = 0 Hz, 32 kHz t;

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