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Arduino Nano Every pinout

Name: Arduino Nano Every pinout with per-pin electrical limits
Creator: Xirkit

All 35 pins of the Arduino Nano Every, each mapped to the ATmega4809-AU pad it routes to, with its functions and — for 25 pins — the electrical limits from the chip datasheet. Every number cites its page and table.

35 pins documented25 with electrical limits23 gpio3 power out3 control3 ground1 power in2 debugcomplete pinout

Pin table

Arduino Nano Every pins, functions and electrical limits

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VIH/VIL: input thresholds · VOH/VOL: output levels · IOH/IOL: output current. Values apply to the chip pad each pin routes to, under the conditions cited in the source.
Pin	Position	Kind	Chip pad	Functions	VIH	VIL	VOH	VOL	IOH	IOL	5 V tolerant	Abs max	Source
D13	JP1 · 1	gpio	PE2	D13, PE2, SPI SCK, LED_BUILTIN, AIN10, SCK (alternate), TCA0 0-WO2 (alternate), EVOUTE	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
+3V3	JP1 · 2	power out		power_out									p.2
AREF	JP1 · 3	gpio	PD7	AREF / VREFA, PD7, VREFA, AIN7, N2, EVOUTD (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A0	JP1 · 4	gpio	PD3	A0, PD3, AIN3, N0, TCA0 0-WO3 (alternate), LUT2-OUT	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A1	JP1 · 5	gpio	PD2	A1, PD2, AIN2, P0, TCA0 0-WO2 (alternate), EVOUTD, LUT2-IN2	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A2	JP1 · 6	gpio	PD1	A2, PD1, AIN1, P3, TCA0 0-WO1 (alternate), LUT2-IN1	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A3	JP1 · 7	gpio	PD0	A3, PD0, AIN0, TCA0 0-WO0 (alternate), LUT2-IN0	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A4	JP1 · 8	gpio	PA2	A4, PA2, I2C SDA, TWI, USART0 XCK, SDA(MS), TCA0 0-WO2, TCB0-WO, EVOUTA, LUT0-IN2	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A5	JP1 · 9	gpio	PA3	A5, PA3, I2C SCL, TWI, USART0 XDIR, SCL(MS), TCA0 0-WO3, TCB1-WO, LUT0-OUT	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A6	JP1 · 10	gpio	PD4	A6, PD4, AIN4, P1, TCA0 0-WO4 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
A7	JP1 · 11	gpio	PD5	A7, PD5, AIN5, N1, TCA0 0-WO5 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
+5V	JP1 · 12	power out		power_out									p.8
RST	JP1 · 13	control	PF6	RESET (active low), PF6, RESET, USART2 XCK (alternate), LUT3-OUT (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
GND	JP1 · 14	ground		ground
VIN	JP1 · 15	power in		power_in									p.2
TX	JP2 · 16	gpio	PC4	TX, PC4, Serial1 TX (USART1), USART1 TxD (alternate), TCA0 0-WO4 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
RX	JP2 · 17	gpio	PC5	RX, PC5, Serial1 RX (USART1), USART1 RxD (alternate), TCA0 0-WO5 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
RST	JP2 · 18	control	PF6	RESET (active low), PF6, RESET, USART2 XCK (alternate), LUT3-OUT (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
GND	JP2 · 19	ground		ground
D2	JP2 · 20	gpio	PA0	D2, PA0, EXTCLK, USART0 TxD, TCA0 0-WO0, LUT0-IN0	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D3	JP2 · 21	gpio	PF5	D3, PF5, PWM, AIN15, USART2 RxD (alternate), TCA0 0-WO5 (alternate), TCB1-WO (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D4	JP2 · 22	gpio	PC6	D4, PC6, USART1 XCK (alternate), LUT1-OUT (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D5	JP2 · 23	gpio	PB2	D5, PB2, PWM, USART3 XCK, TCA0 0-WO2 (alternate), EVOUTB	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D6	JP2 · 24	gpio	PF4	D6, PF4, PWM, AIN14, USART2 TxD (alternate), TCA0 0-WO4 (alternate), TCB0-WO (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D7	JP2 · 25	gpio	PA1	D7, PA1, USART0 RxD, TCA0 0-WO1, LUT0-IN1	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D8	JP2 · 26	gpio	PE3	D8, PE3, AIN11, SS (alternate), TCA0 0-WO3 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D9	JP2 · 27	gpio	PB0	D9, PB0, PWM, USART3 TxD, TCA0 0-WO0 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D10	JP2 · 28	gpio	PB1	D10, PB1, PWM, USART3 RxD, TCA0 0-WO1 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D11	JP2 · 29	gpio	PE0	D11, PE0, SPI MOSI, AIN8, MOSI (alternate), TCA0 0-WO0 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
D12	JP2 · 30	gpio	PE1	D12, PE1, SPI MISO, AIN9, MISO (alternate), TCA0 0-WO1 (alternate)	3.5–5.2 V	-0.2–1.5 V	≥ 4 V	≤ 1 V	≤ 40 mA	≤ 40 mA	yes	-0.5–5.5 V	ATmega4809-AU datasheet p.460 table 460_1
+3V3	debug pads (3x2, bottom) · 1	power out		power_out									p.2
SWD	debug pads (3x2, bottom) · 2	debug		SAMD11 SWD
SWCLK	debug pads (3x2, bottom) · 3	debug		SAMD11 SWCLK
GND	debug pads (3x2, bottom) · 5	ground		ground
RST	debug pads (3x2, bottom) · 6	control		SAMD11 RST

Answers from the record

Arduino Nano Every pinout FAQ

What microcontroller does the Arduino Nano Every use?

The Arduino Nano Every is built around the ATmega4809-AU, alongside ATSAMD11D14A, MPM3610AGQV-P, AP2112K-3.3TRG1.

How many GPIO pins does the Arduino Nano Every have?

22 GPIO pins are exposed. Xirkit documents 35 board pins, 25 of them with pin-level electrical limits.

Are the Arduino Nano Every I/O pins 5 V tolerant?

Yes, the documented I/O pins are 5 V tolerant. Input-high threshold: 3.5–5.2 V.

How much current can a Arduino Nano Every GPIO pin source?

Documented output-high current per pin: ≤ 40 mA. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.

What voltage powers the Arduino Nano Every?

Supply range 4.8–21 V. Power inputs: VIN (?–21 V).

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