PJRC recently released a Teensy 4.1 variant without ethernet support but with more I/Os. The new Teensy 4.1_NE comes with the same processor as the Teensy 4.0, in this case a 32-bit ARM Cortex-M7 processor from NXP. 

The Teensy 4.1_NW features the NXP iMXRT1062 Cortex-M7 processor. The processor has a default frequency of 600MHz but it can be overclocked to 800MHz without additional cooling. 

This microcontroller offers up to 1024KB of RAM, 4MB flash memory and a built-in microSD card slot for extra storage capacity.  

Teensy 4.1 for reference
(click images to enlarge)

The development board provides up to 55 digital I/Os, 35 PWM pins, 18 analog input pins and 1 12-bit analog output pin.

The protocols supported by the Teensy 4.1_NE board include 8 serial ports, 3 SPI with 16 word FIFO, 2 I2S, 3 CAN Bus, 3 I2C and 1 SPDI. Additionally, the processor offers 32 DMA channels and all the digital pins have interrupts.  

Teensy 4.1 pinout for reference
(click image to enlarge)

As other Teensy products, the Teensy 4.1_NE supports the Arduino IDE with the Teensyduino add-on, in addition to other software programs as VisualMicro, PlatformIO and CircuitPython. 

Specifications listed for the Teensy 4.1_NE include:

• Processor System:
  • NXP iMXRT1062 ARM Cortex-M7 (up to 600MHz)
• Memory/Storage:
  • 1024K RAM
  • 2K MB
  • 1x microSD card slot
  • EEPROM via flash memory
• USB:
  • 1x USB Host
• I/O Peripherals:
  • 55x digital pins (3.3V)
    • 35x PWM, 18x Analog inputs, 1x 12-bit Analog output 
    • 7x UARTs, 3x SPI, 3x I2C, 3x CAN (1x w/ CAN FD)
    • 2x I2S, 1x SPDIF
• Other Features:
  • RTC
  • Random Number Generator
  • Cryptographic Acceleration
• Software:
  • • Arduino IDE, VisualMicro
    • PlatformIO, CircuitPython. 
• Dimensions:
  • 6.10 × 1.80 × 0.40cm

 Further information

The Teensy 4.1_NE is available for $28.60 on PJRC’s website and on eckstein-shop for €42,95. See this link for additional info.