PJRC Teensy 4.1 – Cortex-M7 600MHz

The PJRC Teensy 4.1 is a high-performance development board designed for advanced embedded systems and real-time applications. It features the NXP iMXRT1062 ARM Cortex-M7 processor running at 600 MHz, expanded flash memory, and optional external memory support, while offering enhanced I/O including Ethernet PHY, SD card socket, and USB host capability. The board supports dynamic clock scaling without affecting serial communication, timing functions, or data streaming performance, and provides a shutdown feature with RTC backup when powered by a coin cell. With its compact 2.4 × 0.7 in form factor, pre-soldered headers, and stable operation, Teensy 4.1 is suitable for high-speed data processing, control systems, and educational or industrial prototyping.

Features

- ARM Cortex-M7 processor at 600 MHz with 1024 KB RAM

- 8 MB Flash memory with recovery and EEPROM emulation support

- USB Host port and built-in 10/100 Mbit Ethernet PHY

- microSD socket with native SDIO (4-bit) interface

- 55 I/O pins including 35 PWM, 18 analog inputs, and 8 serial ports

- Three CAN buses (one supporting CAN FD) and multiple SPI/I2C/I2S interfaces

- Hardware cryptographic engine, random number generator, and RTC

- Pre-soldered male headers for direct breadboard integration

Specifications

- Processor: ARM Cortex-M7 running at 600 MHz

- RAM: 1024 KB (including 512 KB tightly coupled memory)

- Flash Memory: 8 MB with 64 KB reserved for recovery and EEPROM emulation

- Total I/O Pins: 55 pins, including 42 breadboard-friendly pins

- PWM Channels: 35 hardware PWM pins

- Analog Inputs: 18 analog channels

- Storage Interface: microSD socket with native 4-bit SDIO

- Communication Interfaces: 8 UART, 3 SPI with FIFO, 3 CAN (one with CAN FD), 2 I2S, 1 S/PDIF

- Ethernet Support: 10/100 Mbit DP83825 PHY using 6-pin interface

- USB Functionality: USB Host port

- Power Management: On/Off control with real-time clock backup

- Headers: Pre-soldered male headers for direct prototyping

- Dimensions: 61 × 18 mm (board length × width)

- Thickness: 4 mm (without headers)

Links

- Teensy 4.1 Development Board 3D Model

- Teensy 4.1 Development Board 3D Case

- Arm Cortex-M7 Processor Datasheet

Toutrials

Teensy 4.1 Terminal Block Breakout Board + Custom 7-Pin TFT Cable Build

Teensy Drum Sample Player