{"title":"Teensy 4.0","handle":"teensy-4-0","url":"/products/teensy-4-0","description":"The Teensy 4.0 is a high-performance microcontroller development board powered by the NXP iMXRT1062 ARM Cortex-M7 processor running at 600 MHz. Despite its compact 35.6 × 17.8 mm (1.4 × 0.7\") form factor — the same size as the Teensy 3.2 — it delivers exceptional processing power with a dual-issue superscalar architecture, hardware floating point (32-bit and 64-bit), and 1024 KB of RAM (512 KB tightly coupled).\n\nTeensy 4.0 supports dynamic clock scaling, allowing speed changes without affecting serial baud rates, audio sample rates, or Arduino timing functions. A power shut-off feature lets you completely disable the 3.3 V supply via a pushbutton, with an optional coin cell on VBAT to keep the real-time clock running.\n\nKey Features\n\n\n600 MHz ARM Cortex-M7 – NXP iMXRT1062, dual-issue superscalar with branch prediction\n\n1024 KB RAM – 512 KB tightly coupled memory for fast single-cycle access\n\nHardware FPU – Accelerates both 32-bit float and 64-bit double operations\n\nDynamic Clock Scaling – Change CPU speed without disrupting timing or serial communication\n\nPower Shut-Off – Hold a button for 5 seconds to disable the 3.3 V supply; RTC continues on VBAT\n\nOverclockable – Supports speeds well beyond 600 MHz\n\nTeensy 3.2 Compatible – Same form factor with broad pin compatibility\n\n\nSpecifications\n\n\nProcessor – NXP iMXRT1062 (ARM Cortex-M7) at 600 MHz\n\nRAM – 1024 KB (512 KB TCM + 512 KB general)\n\nFlash – 2048 KB\n\nCurrent Draw – ~100 mA at 600 MHz\n\nOperating Voltage – 3.3 V (5 V tolerant digital inputs)\n\nBoard Dimensions – 35.6 × 17.8 mm\n\n\nIdeal For\n\nAudio synthesis and DSP applications\nHigh-speed data acquisition and real-time processing\nUSB MIDI controllers and instruments\nRobotics and motion control\n\n\n\nNote: Headers are not included and must be purchased separately and soldered on.\n\n\nPackage Contents\n\n1× Teensy 4.0 development board\n\n\nResources\n\nTeensy 4.0 Product Page (PJRC)\nTeensyduino Software\n","vendor":"Little Bird","product_type":"physical","in_stock":true,"options":[],"variants":[{"id":5039,"title":"Default Title","sku":"PJ-TEENSY4","price":43.0,"compare_at_price":0.0,"on_sale":false,"in_stock":true,"available_quantity":5,"option1":"Default Title"}]}