PCF8564AU/5GC/1,01 Datasheet/PDFThe PCF8564AU/5GC/1,01, or simply PCF8564, is a real-time clock developed by NXP Corporation for embedded applications. It was first released in April 17th, 2019 as a low-power, low-cost solution for timing applications. Its uses include clocking functions, synchronization, and providing precise timing solutions in embedded systems.
The PCF8564 integrates a programmable clock oscillator and a Real Time Clock (RTC) calendar engine, offering synchronous and precise timing solutions to embedded applications. Its features include the ability to synchronize with an external clock signal, as well as a battery-backed RAM option that ensures time-keeping accuracy and data retention capabilities.
The PCF8564’s real-time clock has an integrated digital-to-analog converter that tracks time in UTC or local time formats. This converter allows for a more accurate timestamp compared to traditional RTCs with a quartz crystal oscillator. With a low power consumption of only about 140nanowatts in standby mode and 0.125mA active mode, this allows for ultra-low temperature and power requirements, making it ideal for battery-powered solutions.
The PCF8564AU/5GC/1,01 also comes with an integrated watchdog timer and interrupt controller that offer support for various application cases. It can support up to 10 interrupts and 32watchdog timers for programmable timeouts, and integrates a system control register for control of the clock and timing devices. This can be helpful for applications that require an interruption after a certain period of time.
The PCF8564 is an ideal companion for applications that need precise timing solutions. Its programmable clock oscillator and integrated Real Time Clock give it an edge in accuracy, while its low power requirements make it an ideal solution for battery-powered applications.