NXP PCF85063AT/AY Tiny Real-Time Clock/Calendar

The PCF85063AT/AY from NXP Semiconductors is a compact and highly integrated Real-Time Clock (RTC) and calendar optimized for low power consumption and with a wealth of features suitable for a wide range of industrial and consumer applications. This tiny RTC offers time tracking in hours, minutes, and seconds, and calendar functionality with day, month, and year information.

Key Features

• Accuracy and Timekeeping: The device maintains accurate timekeeping with a frequency offset of less than ±100 ppm at room temperature, which translates to less than 5 minutes per year.
• Low Power Consumption: Designed for battery-powered applications, the PCF85063AT/AY has an extremely low current consumption of less than 0.25 µA in battery backup mode.
• Interface: Communication with the RTC is established via a fast I²C-bus interface, which operates at clock frequencies up to 400 kHz, making it easy to integrate with most microcontrollers.
• Programmable Clock Output: It features a programmable clock output for peripheral devices, which can be set to a frequency range from 1 Hz to 32.768 kHz.
• Alarm Function: The device also includes an alarm function that allows users to set a wakeup signal on a minute, hour, day, or week basis.
• Countdown Timer: An integrated countdown timer with interrupt capability provides additional timing functionality.
• Package Options: Available in both SO8 and TSSOP8 packages, the PCF85063AT/AY offers flexibility for various PCB layouts.

Applications

With its small footprint and rich set of features, the PCF85063AT/AY is ideal for use in a variety of applications, including:

• Portable and wearable devices
• Healthcare monitoring systems
• Smart meters and smart home devices
• Industrial and IoT devices
• Consumer electronics such as digital cameras, audio players, and toys

The NXP PCF85063AT/AY RTC is a reliable choice for designers looking to implement accurate timekeeping and calendar functions in their projects with minimal power draw and size constraints.