Description of Teensy 4.1 Brand Sparkfun Overview The Teensy 4.1 is the latest and most powerful version of the Teensy development platform, designed for high-speed and real-time applications. Powered by a 600 MHz ARM Cortex-M7 processor (NXP iMXRT1062), it offers substantial improvements over its predecessor (Teensy 4.0), including 4× more flash memory, enhanced I/O capabilities, and additional expansion options such as Ethernet PHY, microSD socket, and USB Host support—all while maintaining the same compact footprint as the Teensy 3.6. This board is ideal for developers needing advanced performance, real-time capabilities, and Arduino IDE compatibility Key Feature Ultra-fast ARM Cortex-M7 processor at 600 MHz Dual-issue superscalar architecture for high instruction throughput Tightly Coupled Memory (ITCM/DTCM) for single-cycle memory access Floating Point Unit (FPU) with support for 32-bit and 64-bit calculations Dynamic clock scaling without affecting serial/audio timing or Arduino functions Power management with push-button on/off and RTC battery backup Expandable memory support with two optional chip locations Built-in USB Host, microSD card socket, and Ethernet PHY Optimized for Teensyduino with Arduino library support Overclockable beyond 600 MHz for high-performance applications Technical Specifications Parameter Specification Processor ARM Cortex-M7 @ 600 MHz (NXP iMXRT1062) RAM 1024 KB total (512 KB tightly coupled) Flash Memory 8 MB (64 KB reserved for EEPROM & recovery) I/O Pins 55 total, 42 breadboard-friendly PWM Pins 35 Analog Inputs 18 Digital Interfaces 3x SPI (16-word FIFO), 8x UART, 3x CAN (1 CAN FD), 2x I2S, 1x S/PDIF Storage Interfaces microSD Socket (SDIO, 4-bit) Ethernet 10/100 Mbps DP83825 PHY (6 pins) USB 1x USB Host Port DMA Channels 32 general-purpose Power Consumption ~100 mA @ 600 MHz RTC Support Yes (VBAT backup) Floating Point Support Single & Double Precision (32-bit & 64-bit) Cryptographic Features Hardware acceleration & random number generator FlexIO & Pixel Engine Yes – Programmable FlexIO & Pixel Processing Pipeline Power Features Button-controlled power-off and on Dimensions 2.4 in x 0.7 in (same as Teensy 3.6) Header Pins Not included (sold separately) Documentation Manual (MIMXRT1062 DVL6A) Teensy Quick Start Teensyduino Software Teensy Help Page and FAQ Applications Embedded systems & real-time control High-performance audio processing IoT devices with Ethernet or SD storage Scientific instrumentation & data logging Robotics and motor control Cryptographic applications and secure communication Digital signal processing and custom audio synthesizers Packaging Details 1 × Teensy 4.1 Attention Note: This item is non-returnable. If it arrives damaged or is not functioning properly, please get in touch with us to determine if further action may be taken. Need Help? Our engineers are available to assist you. If you have any queries, please leave a comment below or call 09678110110 from 09:00 am to 08:00 pm (7 days a week). You can also reach us via Live Chat or Facebook Inbox.
