REAL TIME CLOCK INTERFACE BOARD WITH PCF8563 AND UEXT
MOD-RTC is a low cost OSHW Real time clock board with a UEXT connector. The time keeping accuracy is tuned to ±1Hz on the 32768 oscillator which gives a time drift of approx 2.5 seconds per day if held at a constant temperature. If your ambient temperature varies, this time drift may be bigger.
PCF8563 Real time clock
Lithium 3V battery connector
UEXT connector FR-4, 1.5 mm, soldermask, component print
Dimensions: 40x19mm (1.57 x 0.75″)