Specifications

ROCK Pi 4C Plus Product Brief
4 Electrical Specification
4.1 Power Requirements
The ROCK Pi 4C Plus can only be powered by +5V.
• USB C 5V
• 5V Power from the GPIO PIN 2 & 4
The recommended power source capacity is at least 5V/3A without M.2 SSD or 5V/5A using with M.2
SSD.
4.2 GPIO Voltage
GPIO Voltage Level Tolerance
GPIO3_C0 3.3V 3.465V
ADC_IN0 1.8V 1.98V
Other GPIO 3.0V 3.14V
5 Peripherals
5.1 GPIO Interface
ROCK Pi 4C Plus oers 40P GPIO expansion which is compatible with common accessories(HATs) on
the market.
5.1.1 GPIO Alternate Functions
GPIO number Function2 Function1 GPIO Pin# Pin# GPIO Function1 Function2 GPIO number
+3.3V 1 2 +5.0V
71 I2C7_SDA GPIO2_A7 3 4 +5.0V
72 I2C7_SCL GPIO2_B0 5 6 GND
75 SPI2_CLK GPIO2_B3 7 8 GPIO4_C4 UART2_TXD 148
GND 9 10 GPIO4_C3 UART2_RXD 147
146 PWM0 GPIO4_C2 11 12 GPIO4_A3 I2S1_SCLK 131
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