Keil Logo Arm Logo

NXP MK21DX256Axxx5

ARM Cortex-M4, 50 MHz, 320 kB ROM, 32 kB RAM

The Kinetis K2x MCU family is pin-peripheral and software-compatible with many of the Kinetis K series MCU families, offering full and high-speed USB 2.0 On-The-Go, in addition to other features like device charge detect capability and USB crystal-less functionality. Devices start from 32 KB of flash in 5 x 5 mm 32-pin QFN packages extending up to 2 MB in a 144-pin MAPBGA package. These devices offer various levels of integration, with a rich suite of analog, communication, timing and control peripherals. Next-generation Kinetis K2x MCUs are further optimized for performance with industry-leading power consumption and offer more streamlined integration for further BOM cost reductions.

Core ARM Cortex-M4, 50 MHz
  • Processor:ARM Cortex-M4, 50 MHz
Memory 32 kB RAM, 320 kB ROM
  • ROM:256 kB
  • ROM:64 kB
  • RAM:16 kB
  • RAM:16 kB
Development Tools
CMSIS Drivers No CMSIS-Driver in Device Family Pack.
Examples
Keil logo ARM logo
Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings

Privacy Policy Update

ARM’s Privacy Policy has been updated. By continuing to use our site, you consent to ARM’s Privacy Policy. Please review our Privacy Policy to learn more about our collection, use and transfers
of your data.