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PCF8593 Datasheet PDF - NXP Semiconductors.

Part NameDescriptionManufacturer
PCF8593 Real-time clock/calendar NXP
NXP Semiconductors. NXP
Other PDF  no available.
PCF8593 Datasheet PDF : PCF8593 pdf   
PCF8593 image

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.

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 μA
„ 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 available
„ Slave addresses: A3h for reading, A2h for writing

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