NXP Semiconductors
UM11714
PCF85263ATL-ARD evaluation board
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 daughterboard can
be directly inserted in the Arduino port. The daughterboard uses only four signal lines.
represents the pin chart of connectors, and the lines used in the circuit (see also
the SPF-46659_A1.pdf schematic file):
Ref Des
#
Arduino label
PCF85263ATL-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_INTA_B
4
D3 / PWM
RTC_INTB_B
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
5
D12 / MISO
Not used
6
D13 / SCK
Not used
7
GND
Power supply return
8
AREF
Not used
J36 (mixed)
9
A4 / SDA
Not used
Table 1. Pin chart of Arduino connectors and their usage
UM11714
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© NXP B.V. 2022. All rights reserved.
User manual
Rev. 1.0 — 17 February 2022
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