1. Devices
  2. MK21D5
  3. MK21DN512xxx5


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  • Core

    Cortex-M4, 50 MHz

  • Family


K21_50: Kinetis(r) K21-50 MHz, Full-Speed USB, Anti-Tamper Microcontrollers (MCUs) based on ARM(r) Cortex(r)-M4 Core

- Features hardware encryption and tamper detection;/li>
- Includes a rich suite of analog, communication, timing and control peripherals to accommodate a wide range of requirements;/li>
- Maximizes board space and enhances performance with minimum-length interconnections;/li>
- Provides performance efficiency with industry-leading low power;/li>
- Delivers significant BOM savings through smart on-chip integration;/li>
- Shares the comprehensive enablement and scalability of the Kinetis(r) portfolio;/li>




Maximum Clock Frequency 50 MHz
Memory Protection Unit
Floating Point Unit NO_FPU
Trust Zone
Digital Signal Processor
CortexM Vector Extensions
Endian Little-endian