Espressif Systems ESP32-C6 Series Hardware Design Manuallines page 7

2 Schematic Checklist
5
D
VDD33
VDD33
C
C6 C7
10uF 1uF(NC)
GND GND
ANT1
1 RF_ANT
2
PCB_ANT
GND
The values of C11, L2 and C12
B
vary with the actual PCB board.
CHIP_EN:
H Activate chip;
L Disable chip.
This pin could not be float.
A
Note:
Unless otherwise specified, "ESP32-C6" used in this document refers to the QFN40 variant of ESP32-C6.
5
Any basic ESP32-C6 circuit design may be broken down into 11 major sections:
• Power supply
• Power-on sequence and system reset
• Flash
• Clock source
• RF
• UART
The rest of this chapter details the specifics of circuit design for each of these sections.
Espressif Systems
4
The values of C1 and C4 vary with
the selection of the crystal.
The value of R4 varies with the
actual PCB board. R4 could be a
resistor or inductor, the initial
value is suggested to be 24 nH.
C3 C2
1uF 10nF
GND GND
L1 2.0nH
C8 C9
0.1uF 0.1uF
GND GND
TBD
L2 LNA_IN
C11 C12
CHIP_EN
TBD TBD
GPIO0
GPIO1
GND GND GPIO2
VDD33
GND
Figure 2: ESP32-C6 QFN32 Schematic
4
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GND
GND
Y1
C1
TBD
40MHz(±10ppm)
GND
1
ANT
2
VDDA3P3
3
VDDA3P3
4
CHIP_PU
5
VDDPST1
6
XTAL_32K_P
7
XTAL_32K_N
8
GPIO2
C15
0.1uF U1
• Strapping pins
• GPIO
• ADC
• USB
• SDIO
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ESP32-C6 Series Hardware Design Guidelines v1.0
3
GND
C4
TBD
GND
24 R17 0
SDIO_CLK
23
SDIO_CMD
22
U0RXD
21 R3 499
U0TXD
20
VDDPST2
19
GPIO15
18
GPIO14
17
GPIO13
C10
0.1uF
ESP32-C6F GND
NC: No component.
3
2
GPIO23
GPIO22
GPIO21
GPIO20
GPIO19
GPIO18
U0RXD
U0TXD
GPIO15
GPIO14
GPIO13
VDD33
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