PCF85063ATT/A

The PCF85063A is a CMOS Real-Time Clock (RTC) and calendar from NXP Semiconductors, designed for low power consumption. It provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.

This RTC features a 400 kHz two-line I2C-bus interface, allowing for serial data transfer. The clock operating voltage ranges from 0.9 V to 5.5 V, with a typical current consumption of 0.22 µA at 3.3 V and 25 °C. It offers programmable clock output frequencies for peripheral devices and selectable integrated oscillator load capacitors.

Key features include an alarm function, a countdown timer, minute and half minute interrupts, oscillator stop detection, and an internal Power-On Reset (POR). A programmable offset register allows for fine-tuning of the clock frequency.

The PCF85063ATT/A is supplied in an SO8 plastic small outline package with a body width of 3.9 mm. It is suitable for applications such as digital cameras, printers, copy machines, mobile equipment, and battery-powered devices.