Teensy 4.1 Development Board
Review: 5 - "A masterpiece of literature" by John Doe, written onMay 4, 20020
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Teensy 4.1 Development Board

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  • Product SKU: KGPDB002
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Specification

Description

The Teensy 4.1 is the newest iteration of the astoundingly popular development platform that features an ARM Cortex-M7 processor at 600MHz, with an NXP iMXRT1062 chip, four times larger flash memory than the 4.0, and two new locations to optionally add more memory. The Teensy 4.1 is the same size and shape as the Teensy 3.6 (2.4in by 0.7in) and provides greater I/O capability, including an ethernet PHY, SD card socket, and USB host port.

When running at 600 MHz, the Teensy 4.1 consumes approximately 100mA current and provides support for dynamic clock scaling. Unlike traditional microcontrollers, where changing the clock speed causes wrong baud rates and other issues, Teensy 4.1 hardware and Teensyduino’s software support for Arduino timing functions are designed to allow dynamic speed changes. Serial baud rates, audio streaming sample rates, Arduino functions like delay() and Millis (), and Teensyduino’s extensions like IntervalTimer and elapsedMillis, continue to work correctly while the CPU changes speed. Teensy 4.1 also provides a power shut-off feature. By connecting a pushbutton to the On/Off pin, the 3.3V power supply can be entirely disabled by holding the button for five seconds and turned back on with a brief button press. If a coin cell is connected to VBAT, Teensy 4.1’s RTC also continues to keep track of date & time while the power is off. Teensy 4.1 also can also be overclocked, well beyond 600MHz!

Teensy 4.1’s Cortex-M7 processor includes a floating-point unit (FPU) that supports both 64-bit “double” and 32-bit “float”. With M4’s FPU on Teensy 3.5 & 3.6, and also Atmel SAMD51 chips, only 32-bit float is hardware accelerated. Any use of double, double functions like log(), sin(), and cos() means slow software-implemented math. Teensy 4.1 executes all of these with FPU hardware.

Processor


ARM Cortex-M7 brings many powerful CPU features to a true real-time microcontroller platform. CPU performance is many times faster than typical 32-bit microcontrollers.

Teensy 4.1 Development Board


Differences between Teensy 4.1 & Teensy 4.0

Teensy® 4.0 Development Board

Technical Details

  • ARM Cortex-M7 at 600 MHz
  • Float point math unit, 64 & 32 bits
  • 7936K Flash, 1024K RAM (512K tightly coupled), 4K EEPROM (emulated)
  • QSPI memory expansion, locations for 2 extra RAM or Flash chips
  • USB device 480 Mbit/sec & USB host 480 Mbit/sec
  • 55 digital input/output pins, 35 PWM output pins
  • 18 analog input pins
  • 8 serial, 3 SPI, 3 I2C ports
  • 2 I2S/TDM and 1 S/PDIF digital audio port
  • 3 CAN Bus (1 with CAN FD)
  • 1 SDIO (4-bit) native SD Card port
  • Ethernet 10/100 Mbit with DP83825 PHY
  • 32 general-purpose DMA channels
  • Cryptographic Acceleration & Random Number Generator
  • RTC for date/time
  • Programmable FlexIO
  • Pixel Processing Pipeline
  • Peripheral cross triggering
  • Power On/Off management

Physical Attribute

Teensy 4.1 Development Board

Pin Details

Teensy 4.1 Development Board

Features

  • 10 / 100 Mbit DP83825 PHY (6 pins)
  • ARM Cortex-M7 at 600MHz
  • 1024K RAM (512K is tightly coupled)
  •  CAN Bus (1 with CAN FD)
  • 2 I2S Digital Audio
  • 1 S/PDIF Digital Audio
  • 3 SPI, all with 16-word FIFO
  • 7 Bottom SMT Pad Signals
  • 8 Serial ports
  • 32 general-purpose DMA channels
  • Cryptographic Acceleration
  • Random Number Generator
  • RTC for date/time
  • Programmable FlexIO
  • Pixel Processing Pipeline
  • Peripheral cross triggering
  • microSD Card Socket
  • Power On/Off management

Useful Links

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Package Includes

  • 1 x Teensy 4.1 Development Board

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