NXP PCF2129AT/2518 Calendar Clock IC Format (YYYY:MM:WK:DD:hh:mm:ss/Binary) I2C SPI 1.8V to 4.2V Supply SOIC-20

The PCF2129AT/2,518 is an accurate Real Time Clock with an integrated temperature compensated crystal (Xtal) oscillator (TCXO) and a 32.768kHz quartz crystal optimized for very high accuracy and very low power consumption. This has a selectable I²C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function and a timestamp function.

• Timestamp function with interrupt capability
• 3 Line SPI-bus with separate data input and output
• Battery backup input pin and switch-over circuitry
• Oscillator stop detection function
• Open-drain interrupt output
• Programmable watchdog timer with interrupt

Applications

Metering, Clock & Timing, Automation & Process Control

Warnings Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Other details

Brand	NXP
Part Number	PCF2129AT/2,518
Quantity	Each (Supplied on Cut Tape)
Technical Data Sheet EN
Product Change Notice EN

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