MKL27Z128VLH4

The KL27 series is optimized for cost-sensitive and batterypowered applications requiring low-power USB connectivity. The product offers: USB FS 2.0 device without requiring an external crystal Embedded ROM with boot loader for flexible program upgrade High accuracy internal voltage and clock reference FlexIO to support any standard and customized serial peripheral emulation Down to 54uA/MHz in very low power run mode and 1.96uA in deep sleep mode (RAM + RTC retained)

• Core Processor
  • ARM® Cortex®-M0+ core up to 48 MHz
• Memories
  • 128/256 KB program flash memory
  • 32 KB SRAM
  • 16 KB ROM with build-in bootloader
  • 32-byte backup register
• System
  • 4-channel asynchronous DMA controller
  • Watchdog
  • Low-leakage wakeup unit
  • Two-pin Serial Wire Debug (SWD) programming and debug interface
  • Micro Trace Buffer
  • Bit manipulation engine
  • Interrupt controller
• Clocks
  • 48MHz high accuracy (up to 0.5%) internal reference clock
  • 8MHz/2MHz high accuracy (up to 3%) internal reference clock
  • 1KHz reference clock active under all low-power modes (except VLLS0)
  • 32–40KHz and 3–32MHz crystal oscillator
• Operating Characteristics
  • Voltage range: 1.71 to 3.6 V
  • Flash write voltage range: 1.71 to 3.6 V
  • Temperature range: –40 to 105 °C
• Packages
  • 64