ChipEspressif

ESP32-S3FN8 Wi-Fi/BLE SoC

ESP32-S3 dual-core Wi-Fi and Bluetooth LE SoC with GPIO matrix, IO MUX, RTC IO, SPI flash interface, USB and JTAG, in QFN56 7x7mm package.

Aliase:ESP32-S3FN8

Datasheet (PDF)

QFN56 7x7mm Top View

57 Pins

Pinout Table57

Pin	Signal / Name	Type	Alternative Functions
1	LNA_IN	Analog	RF LNA input
2	VDD3P3	Power	3.3 V supply
3	VDD3P3	Power	3.3 V supply
4	CHIP_PU	Analog	Chip power-up enable
5	GPIO0	Digital	GPIO0, IO MUXRTC IO MUX function
6	GPIO1	Digital	GPIO1, IO MUXRTC IO MUX function
7	GPIO2	Digital	GPIO2, IO MUXRTC IO MUX function
8	GPIO3	Digital	GPIO3, IO MUXRTC IO MUX function
9	GPIO4	Digital	GPIO4, IO MUXRTC IO MUX function
10	GPIO5	Digital	GPIO5, IO MUXRTC IO MUX function
11	GPIO6	Digital	GPIO6, IO MUXRTC IO MUX function
12	GPIO7	Digital	GPIO7, IO MUXRTC IO MUX function
13	GPIO8	Digital	GPIO8, IO MUXRTC IO MUX function
14	GPIO9	Digital	GPIO9, IO MUXRTC IO MUX function
15	GPIO10	Digital	GPIO10, IO MUXRTC IO MUX function
16	GPIO11	Digital	GPIO11, IO MUXRTC IO MUX function
17	GPIO12	Digital	GPIO12, IO MUXRTC IO MUX function
18	GPIO13	Digital	GPIO13, IO MUXRTC IO MUX function
19	GPIO14	Digital	GPIO14, IO MUXRTC IO MUX function
20	VDD3P3_RTC	Power	RTC domain 3.3 V supply
21	XTAL_32K_P	Digital	32 kHz crystal positive, RTC IO MUX
22	XTAL_32K_N	Digital	32 kHz crystal negative, RTC IO MUX
23	GPIO17	Digital	GPIO17, IO MUXRTC IO MUX function
24	GPIO18	Digital	GPIO18, IO MUXRTC IO MUX function
25	GPIO19	Digital	GPIO19, IO MUXUSB function (default enabled)
26	GPIO20	Digital	GPIO20, IO MUXUSB function (default enabled)
27	GPIO21	Digital	GPIO21, IO MUXRTC IO MUX function
28	SPICS1	Digital	SPI0/1 chip select 1
29	VDD_SPI	Power	SPI domain supply (flash/PSRAM pins)
30	SPIHD	Digital	SPI hold
31	SPIWP	Digital	SPI write protect
32	SPICS0	Digital	SPI0/1 chip select 0
33	SPICLK	Digital	SPI clock
34	SPIQ	Digital	SPI master in, slave out
35	SPID	Digital	SPI master out, slave in
36	SPICLK_N	Digital	SPI differential clock negative
37	SPICLK_P	Digital	SPI differential clock positive
38	GPIO33	Digital	GPIO33, IO MUX
39	GPIO34	Digital	GPIO34, IO MUX
40	GPIO35	Digital	GPIO35, IO MUX
41	GPIO36	Digital	GPIO36, IO MUX
42	GPIO37	Digital	GPIO37, IO MUX
43	GPIO38	Digital	GPIO38, IO MUX
44	MTCK	Digital	JTAG test clock
45	MTDO	Digital	JTAG test data out
46	VDD3P3_CPU	Power	CPU domain 3.3 V supply
47	MTDI	Digital	JTAG test data in
48	MTMS	Digital	JTAG test mode select
49	U0TXD	Digital	UART0 transmit data
50	U0RXD	Digital	UART0 receive data
51	GPIO45	Digital	GPIO45, IO MUX
52	GPIO46	Digital	GPIO46, IO MUX
53	XTAL_N	Analog	Crystal negative
54	XTAL_P	Analog	Crystal positive
55	VDDA	Power	Analog supply
56	VDDA	Power	Analog supply
57	GND	Ground	Ground (exposed pad)

QFN56 7x7mm Top View

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