NXP Semiconductors
UM11759
PCA9846PW-ARD evaluation board
Ref Des
#
Arduino label
PCA9846WP-ARD function
1
NC
Not used
2
IOREF
Not used
3
RESET
Not used
4
3.3V
Power supply (3.3V)
5
5V
Power supply (5V)
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
J1 (analog, digital, I
2
C)
6
A5 / SCL
I
2
C_SCL
1
D0 / RX
MUX1_LDO1_S0
2
D1 / TX
MUX1_LDO1_S1
3
D2
MUX1_LDO1_S2
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
Not used
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
9
A4 / SDA
Not used
J4 (mixed)
10 A5 / SCL
Not used
Table 1. Pin chart of Arduino connectors and usage
The circuit is supplied from Arduino port through J6 and J4. Pin 4 of J6 is 3.3 V
power supply while pin 5 of J6 is 5 V power supply. Pin 6, 7 of J6, and pin 7 of J4
represents the power supply return (ground). LED D1 is the 3.3 V power supply indicator
(“VCC_3V3_MAIN” power net), and D2 is 5 V power supply indicator (“VCC_5V_MAIN”
UM11759
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2022. All rights reserved.
User manual
Rev. 1 — 6 June 2022
7 / 27