PJRC · structured pinout

Teensy 4.0 pinout

Name: Teensy 4.0 pinout with per-pin electrical limits
Creator: Xirkit

All 54 pins of the Teensy 4.0, each mapped to the MIMXRT1062DVL6B pad it routes to, with its functions and — for 40 pins — the electrical limits from the chip datasheet. Every number cites its page and table.

54 pins documented40 with electrical limits3 power in4 ground3 power out14 analog26 gpio2 control2 usbcomplete pinout

Pin table

Teensy 4.0 pins, functions and electrical limits

Markdown · JSON

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
VIN	header_top · T1	power in		power_in									p.21
GND	header_top · T2	ground		ground
3.3V	header_top · T3	power out		power_out									p.14
23	header_top · T4	analog	GPIO_AD_B1_09	D23, interrupt, A9 (12-bit ADC, 0–3.3 V), PWM (FlexPWM4 Module1), CRX1, MCLK1, CAN1, GPIO1.IO[25]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
22	header_top · T5	analog	GPIO_AD_B1_08	D22, interrupt, A8 (12-bit ADC, 0–3.3 V), PWM (FlexPWM4 Module0), CTX1, CAN1, GPIO1.IO[24]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
21	header_top · T6	analog	GPIO_AD_B1_11	D21, interrupt, A7 (12-bit ADC, 0–3.3 V), RX5, BCLK1, GPIO1.IO[27]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
20	header_top · T7	analog	GPIO_AD_B1_10	D20, interrupt, A6 (12-bit ADC, 0–3.3 V), TX5, LRCLK1, GPIO1.IO[26]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
19	header_top · T8	analog	GPIO_AD_B1_00	D19, interrupt, A5 (12-bit ADC, 0–3.3 V), PWM (QuadTimer3 Module0), SCL0, GPIO1.IO[16]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
18	header_top · T9	analog	GPIO_AD_B1_01	D18, interrupt, A4 (12-bit ADC, 0–3.3 V), PWM (QuadTimer3 Module1), SDA0, GPIO1.IO[17]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
17	header_top · T10	analog	GPIO_AD_B1_06	D17, interrupt, A3 (12-bit ADC, 0–3.3 V), TX4, SDA1, GPIO1.IO[22]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
16	header_top · T11	analog	GPIO_AD_B1_07	D16, interrupt, A2 (12-bit ADC, 0–3.3 V), RX4, SCL1, GPIO1.IO[23]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
15	header_top · T12	analog	GPIO_AD_B1_03	D15, interrupt, A1 (12-bit ADC, 0–3.3 V), PWM (QuadTimer3 Module3), RX3, S/PDIF IN, GPIO1.IO[19]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
14	header_top · T13	analog	GPIO_AD_B1_02	D14, interrupt, A0 (12-bit ADC, 0–3.3 V), PWM (QuadTimer3 Module2), TX3, S/PDIF OUT, GPIO1.IO[18]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
13	header_top · T14	gpio	GPIO_B0_03	D13, interrupt, PWM (QuadTimer2 Module0), SCK, CRX1, LED_BUILTIN (orange), GPIO2.IO[3]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
GND	header_bottom · B1	ground		ground
0	header_bottom · B2	gpio	GPIO_AD_B0_03	D0, interrupt, PWM (FlexPWM1 Module1), RX1, CRX2, CS1, CAN2, GPIO1.IO[3]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
1	header_bottom · B3	gpio	GPIO_AD_B0_02	D1, interrupt, PWM (FlexPWM1 Module0), TX1, CTX2, MISO1, CAN2, GPIO1.IO[2]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
2	header_bottom · B4	gpio	GPIO_EMC_04	D2, interrupt, PWM (FlexPWM4 Module2), OUT2, GPIO4.IO[4]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
3	header_bottom · B5	gpio	GPIO_EMC_05	D3, interrupt, PWM (FlexPWM4 Module2), LRCLK2, GPIO4.IO[5]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
4	header_bottom · B6	gpio	GPIO_EMC_06	D4, interrupt, PWM (FlexPWM2 Module0), BCLK2, GPIO4.IO[6]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
5	header_bottom · B7	gpio	GPIO_EMC_08	D5, interrupt, PWM (FlexPWM2 Module1), IN2, GPIO4.IO[8]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
6	header_bottom · B8	gpio	GPIO_B0_10	D6, interrupt, PWM (FlexPWM2 Module2), OUT1D, GPIO2.IO[10]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
7	header_bottom · B9	gpio	GPIO_B1_01	D7, interrupt, PWM (FlexPWM1 Module3), RX2, OUT1A, GPIO2.IO[17]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
8	header_bottom · B10	gpio	GPIO_B1_00	D8, interrupt, PWM (FlexPWM1 Module3), TX2, IN1, GPIO2.IO[16]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
9	header_bottom · B11	gpio	GPIO_B0_11	D9, interrupt, PWM (FlexPWM2 Module2), OUT1C, GPIO2.IO[11]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
10	header_bottom · B12	gpio	GPIO_B0_00	D10, interrupt, PWM (QuadTimer1 Module0), CS, MQSR, GPIO2.IO[0]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
11	header_bottom · B13	gpio	GPIO_B0_02	D11, interrupt, PWM (QuadTimer1 Module2), MOSI, CTX1, GPIO2.IO[2]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
12	header_bottom · B14	gpio	GPIO_B0_01	D12, interrupt, PWM (QuadTimer1 Module1), MISO, MQSL, GPIO2.IO[1]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
24	bottom_smt_pads · BP1	analog	GPIO_AD_B0_12	D24, interrupt, A10 (12-bit ADC, 0–3.3 V), PWM (FlexPWM1 Module2), TX6, SCL2, GPIO1.IO[12]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
25	bottom_smt_pads · BP2	analog	GPIO_AD_B0_13	D25, interrupt, A11 (12-bit ADC, 0–3.3 V), PWM (FlexPWM1 Module3), RX6, SDA2, GPIO1.IO[13]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
26	bottom_smt_pads · BP3	analog	GPIO_AD_B1_14	D26, interrupt, A12 (12-bit ADC, 0–3.3 V), MOSI1, GPIO1.IO[30]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
27	bottom_smt_pads · BP4	analog	GPIO_AD_B1_15	D27, interrupt, A13 (12-bit ADC, 0–3.3 V), SCK1, GPIO1.IO[31]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
28	bottom_smt_pads · BP5	gpio	GPIO_EMC_32	D28, interrupt, PWM (FlexPWM3 Module1), RX7, GPIO3.IO[18]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
29	bottom_smt_pads · BP6	gpio	GPIO_EMC_31	D29, interrupt, PWM (FlexPWM3 Module1), TX7, GPIO4.IO[31]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
30	bottom_smt_pads · BP7	gpio	GPIO_EMC_37	D30, interrupt, CRX3, CAN3 (CAN FD), GPIO3.IO[23]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
31	bottom_smt_pads · BP8	gpio	GPIO_EMC_36	D31, interrupt, CTX3, CAN3 (CAN FD), GPIO3.IO[22]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
32	bottom_smt_pads · BP9	gpio	GPIO_B0_12	D32, interrupt, OUT1B, GPIO2.IO[12]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
33	bottom_smt_pads · BP10	gpio	GPIO_EMC_07	D33, interrupt, PWM (FlexPWM2 Module0), MCLK2, GPIO4.IO[7]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
34	sd_smt_pads · SD1	gpio	GPIO_SD_B0_03	D34, interrupt, PWM (FlexPWM1 Module1), DAT1, MISO2, GPIO3.IO[15]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
35	sd_smt_pads · SD2	gpio	GPIO_SD_B0_02	D35, interrupt, PWM (FlexPWM1 Module1), DAT0, MOSI2, GPIO3.IO[14]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
36	sd_smt_pads · SD3	gpio	GPIO_SD_B0_01	D36, interrupt, PWM (FlexPWM1 Module0), CLK, CS2, GPIO3.IO[13]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
37	sd_smt_pads · SD4	gpio	GPIO_SD_B0_00	D37, interrupt, PWM (FlexPWM1 Module0), CMD, SCK2, GPIO3.IO[12]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
38	sd_smt_pads · SD5	gpio	GPIO_SD_B0_05	D38, interrupt, PWM (FlexPWM1 Module2), DAT3, RX5, GPIO3.IO[17]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
39	sd_smt_pads · SD6	gpio	GPIO_SD_B0_04	D39, interrupt, PWM (FlexPWM1 Module2), DAT2, TX5, GPIO3.IO[16]	2.31–3.3 V	0–0.99 V	≥ 3.15 V	≤ 0.15 V	≤ 4 mA	4 mA typ	no	≤ 3.3 V	p.7
On/Off	end_row · ONOFF	control	ONOFF	On/Off pushbutton (hold 4 s = off, 0.5 s = on), ONOFF
Program	end_row · PROGRAM	control		Program (bootloader) button input
GND	end_row · GND_E	ground		ground
3.3V	end_row · 3V3_E	power out		power_out									p.14
VBAT	end_row · VBAT	power in		power_in									p.14
GND	sd_smt_pads · SD_GND	ground		ground
3.3V	sd_smt_pads · SD_3V3	power out		power_out									p.14
USB Host D−	usb_host_pads · UH_DM	usb		USB host D−
USB Host D+	usb_host_pads · UH_DP	usb		USB host D+
VUSB	bottom_pads · VUSB	power in		power_in									p.14

Answers from the record

Teensy 4.0 pinout FAQ

What microcontroller does the Teensy 4.0 use?

The Teensy 4.0 is built around the MIMXRT1062DVL6B, alongside W25Q16JV-DTR (2 MB), GD32E230F8 (after June 2022), AP7366 (after March 2022).

How many GPIO pins does the Teensy 4.0 have?

40 GPIO pins are exposed. Xirkit documents 54 board pins, 40 of them with pin-level electrical limits.

Are the Teensy 4.0 I/O pins 5 V tolerant?

No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2.31–3.3 V.

How much current can a Teensy 4.0 GPIO pin source?

Documented output-high current per pin: ≤ 4 mA. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.

What voltage powers the Teensy 4.0?

Supply range 3–5.5 V. Power inputs: VIN (3.6–5.5 V), VBAT, VUSB.

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