Espressif Systems ESP32-C6 Series Hardware Design Manuallines page 16

2 Schematic Checklist
configurations, whereas the GPIO matrix is used to route signals from peripherals to GPIO pins. For more
information about IO MUX and GPIO matrix, please refer to
GPIO Matrix (GPIO, IO_MUX).
Some peripheral signals can only be routed to certain GPIO pins, while some can be routed to any available GPIO
pins. For details, please refer to
When using GPIOs,
• Please pay attention to their default configurations after reset, as shown in Table 5. It is recommended to
add a pull-up or pull-down to pins in high-impedance state.
• Avoid using the pins already occupied by flash.
• Pay attention to the states of strapping pins during power-up.
Pin Pin
No. Name
1 ANT
2 VDDA3P3
3 VDDA3P3
4 CHIP_PU
5 VDDPST1
6 XTAL_32K_P
7 XTAL_32K_N
8 GPIO2
9 GPIO3
10 MTMS
11 MTDI
12 MTCK
13 MTDO
14 GPIO8
15 GPIO9
16 GPIO10
17 GPIO11
18 GPIO12
19 GPIO13
20 SPICS0
21 SPIQ
22 SPIWP
23 VDD_SPI
24 SPIHD
25 SPICLK
Espressif Systems
ESP32-C6 Series Datasheet
Table 5: ESP32-C6 Pin Overview
Pin Pin Providing
Type Power
Analog
Power
Power
Analog VDDPST1
Power
IO VDDPST1
IO VDDPST1
IO VDDPST1
IO VDDPST1
IO VDDPST1
IO VDDPST1
IO VDDPST1
IO VDDPST1
IO VDDPST2
IO VDDPST2
IO VDDPST2
IO VDDPST2
IO VDDPST2
IO VDDPST2
IO VDD_SPI
IO VDD_SPI
IO VDD_SPI
Power/IO —
IO VDD_SPI
IO VDD_SPI
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ESP32-C6 Technical Reference Manual
> Section Peripheral Pin
Pin Settings
At Reset After Reset
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IE, WPU
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IE, WPU IE, WPU
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IE, WPU
WPU IE, WPU
WPU IE, WPU
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WPU IE, WPU
WPU IE, WPU
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ESP32-C6 Series Hardware Design Guidelines v1.0
> IO MUX and
Configurations.
Pin Function Sets
IO MUX LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX Analog
IO MUX
LP IO MUX
IO MUX
IO MUX
IO MUX
IO MUX
Analog
IO MUX
Analog
IO MUX
IO MUX
IO MUX
IO MUX
Analog
IO MUX
IO MUX
IO MUX
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