Grove - High-precision RTC (PCF85063TP) Clock

Grove - High precision RTC

The Grove - High Precision RTC is an extremely precise and low-consumption RTC (Real Time Clock) for Arduino projects and also for ESP32 and Raspberry Pi Pico. 

The name makes it easy to recognize that the Grove - High Precision RTC is a more precise real-time clock compared to the Grove - RTC with the regular clock chip DS1307. The heart of the RTC is PHILIPS PCF85063TP, a CMOS chip optimized for low power consumption. The typical current can be less than 1.2 uA in a given environment. All addresses and data are transmitted serially via the two-line bidirectional I2C bus, whose maximum speed is 400 kbps. An offset register allows fine tuning of the clock and the registered address is automatically incremented after each data byte read or written.

Features

• Provides year, month, day, day of the week, hours, minutes and seconds based on a 32.768 kHz quartz crystal
• Operating voltage of the clock: 0.9 V to 5.5 V
• Low power consumption: typically less than 1.2 μA at VDD = 3.3 V and Tamb = 25 °C
• Up to 400 kHz two-line I²C bus interface (with VDD = 1.8 V to 5.5 V)
• Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz and 1 Hz)
• Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
• Minute and half-minute interruption
• Internal power-on reset (POR)
• Programmable offset register for frequency adjustment
• Compatible platform: Arduino, BeagleBone Green, BeagleBone Green Wireless etc.

Technical details

• Packaging dimensions: 140 mm x 85 mm x 10 mm
• Dimensions: 40 mm x 20 mm
• Weight: 11g

Parts list

• 1x Grove - High precision RTC
• 1x Grove - Cable