The new Teensy 4.1 has an ARM Cortex M7 processor with 600 MHz, an NXP iMXRT1062 chip, a flash memory four times larger than the Teensy 4.0 and two additional memory slots for memory expansion. It has the same size and shape as the Teensy 3.6 (2.4 x 0.7 inch) and offers greater I/O capability, Ethernet PHY, SD card socket and USB host connection. When operating at full load, the Teensy 4.1 requires approximately 100 mA of current and offers support for dynamic clock scaling.

Technical details

• ARM cortex M7 at 600MHz
• 1024K RAM (512K is closely coupled)
• 128Mb Flash (64K reserved for recovery & EEPROM emulation)
• USB host port
• 2x additional Flash memory locations
• 3x CAN bus (1 with CAN FD)
• 2x I2S Digital Audio
• 1x S/PDIF Digital Audio
• 1x SDIO (4 Bit) native SD
• 3x SPI, all with 16 word FIFO
• 3x I2C, all with 4 byte FIFO
• 7x serial, all with 4 byte FIFO
• 32x general purpose DMA channels
• 31x PWM pins
• 40x digital pins, all capable of interrupt
• 14x analog pins, 2 ADCs on the chip
• Cryptographic acceleration
• Random Number Generator
• RTC for date/time
• Programmable FlexIO
• Pixel Processing Pipeline
• Peripheral cross release
• Ethernet PHY
• microSD card socket
• Power management on/off