Teensy 3.6

62.3mm x 18.0mm x 4.2mm (2.5in x 0.7in x 0.2in)

  180 MHz ARM Cortex-M4 with Floating Point Unit
  1M Flash, 256K RAM, 4K EEPROM
  Microcontroller Chip MK66FX1M0VMD18
  USB High Speed (480Mbit/sec) Port
  2 CAN Bus Ports
  32 General Purpose DMA Channels
  22 PWM Outputs
  4 I2C Ports
  11 Touch-Sensing Inputs
  62 I/O Pins (42 breadboard friendly)
  25 Analog Inputs to 2 ADCs with 13-bit resolution
  2 Analog Outputs (DACs) with 12-bit resolution
  USB Full Speed (12Mbit/sec) Port
  Ethernet mac, capable of full 100Mbit/sec speed
  Native (4-bit SDIO) micro SD card port
  I2S Audio Port, 4-Channel Digital Audio Input & Output
  14 Hardware Timers
  Cryptographic Acceleration Unit
  Random Number Generator
  CRC Computation Unit
  6 Serial Ports (2 with FIFO and Fast Baud Rates)
  3 SPI Ports (1 with FIFO)
  Real-Time Clock