MKL27Z32VFM4

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 Hardware CRC module Down to 46 µA/MHz in very low power run mode and 1.68 µA in stop mode (RAM + RTC retained)

• Core Processor
  • ARM® Cortex®-M0+ core up to 48 MHz
• Memories
  • 32/64 KB program flash memory
  • 8/16 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 SWD (serial wire debug) programming and debug interface
  • Micro trace buffer
  • Bit manipulation engine
  • Interrupt controller
• Clocks
  • 48 MHz high accuracy (up to 0.5%) internal reference clock
  • 8 MHz high accuracy (up to 3%) internal reference clock
  • 1 kHz reference clock active under all low power modes (except VLLS0)
  • 32–40 kHz and 3–32 MHz 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