Espressif Systems ESP32--C3--MINI--1, User Manual, Page: 6 / 16

1 Overview
Table 2 – cont’d from previous page
Name No. Type Function
IO0 12 I/O/T GPIO0, ADC1_CH0, XTAL_32K_P
IO1 13 I/O/T GPIO1, ADC1_CH1, XTAL_32K_N
NC 15 — NC
IO10 16 I/O/T GPIO10, FSPICS0
NC 17 — NC
IO4 18 I/O/T GPIO4, ADC1_CH4, FSPIHD, MTMS
IO5 19 I/O/T GPIO5, ADC2_CH0, FSPIWP, MTDI
IO6 20 I/O/T GPIO6, FSPICLK, MTCK
IO7 21 I/O/T GPIO7, FSPID, MTDO
IO8 22 I/O/T GPIO8
IO9 23 I/O/T GPIO9
NC 24 — NC
NC 25 — NC
IO18 26 I/O/T GPIO18
IO19 27 I/O/T GPIO19
NC 28 — NC
NC 29 — NC
RXD0 30 I/O/T GPIO20, U0RXD,
TXD0 31 I/O/T GPIO21, U0TXD
NC 32 — NC
NC 33 — NC
NC 34 — NC
NC 35 — NC
Espressif Systems 6
ESP32-C3-MINI-1 User Manual v0.1