{"product_id":"ad54022","title":"Teensy 4.1 [DEV-16996] - (AD54022)","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eTeensy 4.1 is the latest version of the incredibly popular development platform, featuring a 600MHz ARM Cortex-M7 processor 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 has the same size and shape as the Teensy 3.6 (2.4 inches by 0.7 inches) and provides increased I\/O capability, including an Ethernet PHY, an SD card socket, and a USB Host port.\u003c\/p\u003e\n\u003cp\u003eWhen running at 600MHz, Teensy 4.1 consumes approximately 100mA of current and provides support for dynamic clock scaling. Unlike traditional microcontrollers, where changing the clock speed causes incorrect baud rates and other problems, Teensy 4.1's hardware and Teensyduino software are compatible with Arduino's timing functions and are designed to allow dynamic speed changes. Serial baud rates, audio streaming sample rates, and Arduino functions like delay() and millis(), and Teensyduino extensions like IntervalTimer and elapsedMillis, continue to work correctly while the CPU changes speed. Teensy 4.1 also provides a power-off feature. By connecting a button to the on\/off pin, the 3.3V power supply can be completely turned off by holding the button for five seconds, and turned back on by briefly pressing the button. If a coin cell is connected to VBAT, Teensy 4.1's RTC also continues to keep track of the date and time while power is off. Teensy 4.1 can also be overclocked, well beyond 600MHz!\u003c\/p\u003e\n\u003cp\u003eThe ARM Cortex-M7 brings many powerful CPU features to a true real-time microcontroller platform. The Cortex-M7 is a dual-issue superscalar processor, meaning the M7 can execute two instructions per clock cycle, at 600MHz! Of course, executing two simultaneously depends on the compiler ordering the instructions and registers. Initial benchmarks have shown that Arduino-compiled C++ code tends to achieve two instructions around 40% to 50% of the time while doing intensive numerical work using integers and pointers. The Cortex-M7 is the first ARM microcontroller to use branch prediction. In M4, loops and other branching code take three clock cycles. With M7, after a loop has executed several times, branch prediction eliminates that overhead, allowing the branch instruction to execute in a single clock cycle.\u003c\/p\u003e\n\u003cp\u003eTightly Coupled Memory is a special feature that allows Cortex-M7 fast single-cycle access to memory using a pair of 64-bit wide buses. The ITCM bus provides a 64-bit path for fetching instructions. The DTCM bus is actually a pair of 32-bit paths, allowing M7 to perform up to two separate memory accesses in the same cycle. These extremely high-speed buses are separate from the M7's main AXI bus, which accesses other memories and peripherals. 512 of memory can be accessed as tightly coupled memory. Teensyduino automatically allocates your Arduino sketch code to ITCM and all non-malloc memory usage to the fast DTCM, unless you add extra keywords to override the optimized default. Memory not accessed on the tightly coupled buses is optimized for DMA access by peripherals. Because most of M7's memory access is done on the two tightly coupled buses, powerful DMA-based peripherals have excellent access to non-TCM memory for highly efficient I\/O.\u003c\/p\u003e\n\u003cp\u003eThe Teensy 4.1 Cortex-M7 processor includes a Floating Point Unit (FPU) that supports both 64-bit \"double\" and 32-bit \"float\". With the M4 FPU on Teensy 3.5 and 3.6, and also Atmel SAMD51 chips, only the 32-bit float is hardware accelerated. Any use of double functions, doubles like log(), sin(), cos() means slow software-implemented math. Teensy 4.1 executes all of these with hardware FPU.\u003c\/p\u003e\n\u003cp\u003eNote: Please note that Teensy 4.1 does not include headers and you will need to purchase them separately and solder them yourself.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e600 MHz ARM Cortex-M7\u003c\/li\u003e\n\n\u003cli\u003e1024 KB RAM (512 KB highly available)\u003c\/li\u003e\n\n\u003cli\u003e8 MB Flash memory (64 KB reserved for recovery and EEPROM emulation)\u003c\/li\u003e\n\n\u003cli\u003eUSB Host Port\u003c\/li\u003e\n\n\u003cli\u003e2 more program memory chips\u003c\/li\u003e\n\n\u003cli\u003e55 total I\/O pins\u003c\/li\u003e\n\n\u003cli\u003e3 CAN Bus ports (1 with CAN FD)\u003c\/li\u003e\n\n\u003cli\u003e2 I2S digital audio ports\u003c\/li\u003e\n\n\u003cli\u003e1 S\/PDIF digital audio port\u003c\/li\u003e\n\n\u003cli\u003e1 native SDIO (4-bit) port for SD card\u003c\/li\u003e\n\n\u003cli\u003e3 SPI ports, all with 16-word FIFO\u003c\/li\u003e\n\n\u003cli\u003e7 SMT signals on bottom pad\u003c\/li\u003e\n\n\u003cli\u003e8 serial ports\u003c\/li\u003e\n\n\u003cli\u003e32 general purpose DMA channels\u003c\/li\u003e\n\n\u003cli\u003e35 PWM pins\u003c\/li\u003e\n\n\u003cli\u003e42 breadboard-friendly I\/O pins\u003c\/li\u003e\n\n\u003cli\u003e18 analog inputs\u003c\/li\u003e\n\n\u003cli\u003eCryptographic acceleration\u003c\/li\u003e\n\n\u003cli\u003eRandom number generator\u003c\/li\u003e\n\n\u003cli\u003eRTC for date\/time\u003c\/li\u003e\n\n\u003cli\u003eProgrammable FlexIO\u003c\/li\u003e\n\n\u003cli\u003ePixel processing pipeline\u003c\/li\u003e\n\n\u003cli\u003ePeripheral cross triggering\u003c\/li\u003e\n\n\u003cli\u003e10\/100 Mbit DP83825 PHY (6 pins)\u003c\/li\u003e\n\n\u003cli\u003eMicroSD card socket\u003c\/li\u003e\n\n\u003cli\u003ePower on\/off management\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDocuments:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/www.pjrc.com\/teensy\/first_use.html\"\u003eTeensy Quick Start\u003c\/a\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/www.pjrc.com\/teensy\/teensyduino.html\"\u003eTeensyduino Software\u003c\/a\u003e\u003c\/li\u003e\n\n\u003cli\u003e\u003ca href=\"https:\/\/www.pjrc.com\/teensy\/troubleshoot.html\"\u003eTeensy Help Page and FAQ\u003c\/a\u003e\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.sparkfun.com\/teensy-4-1.html\" target=\"_blank\" title=\"Reference link\" rel=\"noopener\"\u003e\u003cspan\u003e\u003cstrong\u003eReference link\u003c\/strong\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Sparkfun","offers":[{"title":"Default Title","offer_id":48399388639332,"sku":"AD54022","price":45.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0699\/1344\/4452\/files\/AD54022uJPM.1.jpg?v=1778566389","url":"https:\/\/www.microjpm.store\/en\/products\/ad54022","provider":"MicroJPM","version":"1.0","type":"link"}