PCF8593 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.
PCF8593 Key Features
- 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