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NXP Semiconductors
UM11705
PCF85063TP-ARD evaluation board
4.3 Schematic diagram
The schematic diagram of PCF85063TP-ARD is available at URL:
.
4.4 Arduino port
J5, J6, J35, and J36 are the mated pin headers of Arduino Uno R3 connectors, having
the same electrical function and placed on the board, so that the daughter board can
be directly inserted in the Arduino port. The daughter card uses only four signal lines.
shows the pin chart of connectors, and the lines used in the circuit (see also the
SPF-46657.pdf schematic file):
Ref Des
#
Arduino label
PCF85063TP-ARD function
1
NC
Not used
2
IOREF
Not used
3
RESET
Not used
4
3.3V
Not used
5
5V
Power supply
6
GND
Power supply return
7
GND
Power supply return
J6 (Power)
8
Vin
Not used
1
A0
Not used
2
A1
Not used
3
A2
Not used
4
A3
Not used
5
A4 / SDA
I
2
C – SDA
J35 (analog, digital, I
2
C)
6
A5 / SCL
I
2
C – SCL
1
D0 / RX
Not used
2
D1 / TX
Not used
3
D2
RTC_INT
4
D3 / PWM
Not used
5
D4
Not used
6
D5 / PWM
Not used
7
D6 / PWM
Not used
J5 (digital, UART, PWM)
8
D7
Not used
1
D8
RTC_CLKOUT
2
D9 / PWM
Not used
3
D10 / SS / PWM
Not used
4
D11 / MOSI / PWM
Not used
J36 (mixed)
5
D12 / MISO
Not used
Table 1. The pin chart of Arduino connectors and their usage
UM11705
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2021. All rights reserved.
User manual
Rev. 1.0 — 19 November 2021
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