The NXP MKL26Z256VMP4 is a 32-bit ARM Cortex-M0+ MCU from the Kinetis KL2 series, clocked at 48 MHz. That core speed is the practical ceiling for single-cycle multiply and interrupt response — enough to run a USB OTG stack, handle a 16-bit ADC conversion, and still leave MIPS for a PID loop or Modbus polling.
Industrial temperature range — -40 to 105 °C
Operating temperature range is -40 to 105 °C. Supply voltage range is 1.71 to 3.6 V.
USB OTG and peripheral set
USB OTG on this MCU means it can act as either host or device — plug in a USB flash drive for data logging, or connect to a PC for firmware updates. Brown-out detect, POR, and LVD are on-chip, so external supervisor ICs are optional for most designs.
Lifecycle status is Active per the NXP product record. The part is ROHS3 compliant. Base product number is MKL26Z256.