NXP Semiconductors
UM11705
PCF85063TP-ARD evaluation board
out through pin 7 (CLKOUT, push-pull configuration). The CLKOUT pin is connected to
the Arduino connector J4 pin 1 through zero-ohm resistor R35.
The board is powered through the Arduino connector J6 (pin 4 – 3.3V, pin 6, 7 – GND).
The power is delivered to the DUT through J37 (on the PCF85063TP-ARD board).
The purpose of J37 is to facilitate power-off tests and current measurements. If C8
supercapacitor and R32 resistor (both components not populated) will be installed on the
board, the user can test the RTC back-up function of the DUT. The role of R32 is to limit
the charging current of the supercapacitor C8. The on-board LED D1 is power supply
indicator.
UM11705
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User manual
Rev. 1.0 — 19 November 2021
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