Kinetis K27/K28 MCU Families

Power-efficient, dual-USB with extra-large embedded memory MCUs based in ARM Cortex-M4


  • Power efficient
  • Extra-large and expandable embedded memory
  • High Integration
  • Reliable and secure

The Kinetis K27 and K28 with ARM® Cortex®-M4 expand NXP’s Kinetis K portfolio with embedded memory of 2 MB Flash and 1 MB SRAM, targeting applications which require processing efficiency as well as tight integration.

Highly integrated with two I2S interfaces, two USB Controllers and analog peripherals, they are expandable through a 32-bit SDRAM memory controller and QuadSPI interface supporting eXecution-In-Place (XiP).

These MCUs enable secure content with TRNG, CRC, Memory Mapped Cryptographic Acceleration Unit, providing a strong foundation for the next generation of Internet of Things.

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Power efficient

  • 150 MHz (max) ARM® Cortex®-M4
  • 32-channel DMA with asynchronous support in Stop mode
  • Active run power consumption @120Mhz: <258 µA/MHz (TYP), Static power consumption down to <14µA (TYP) with full 1MB SRAM retention and <6 µS wakeup (K28).


Extra-large and expandable embedded memory

  • 2 MB dual bank embedded program flash and 1 MB SRAM
  • 8 KB I/D Cache + 8 KB System Cache


High Integration

  • 2 x I2S, 4 x I2C, 4 x SPI (1x 40Mbps+), 5 x LPUART
  • 2 x USB Controllers (High-Speed w/ PHY and Full-Speed)
  • PMC with Core Voltage Bypass (K28 Only)
  • 32-ch Programmable module (FlexIO)
  • Secure Digital Host Controller


Reliable and secure 

  • True Random Number Generator
  • Cyclic Redundancy Check
  • Memory Mapped Cryptographic Acceleration Unit


  • Human-Machine Interface