The MKL04Z32VLF4 is a 32-bit Kinetis KL0x entry-level Ultra-low-power Microcontroller based on ARM Cortex-M0+ RISC architecture core operates at a maximum frequency of 48MHz. The device incorporates 32kB internal flash, 4kB internal RAM, one 12-bit SAR A/D converter, general purpose PWM and 41 general-purpose I/O pins. This device also features communication interfaces like one UART modules, one SPI module and one I2C module.
48MHz ARM Cortex-M0+ core
Nine low-power modes to provide power optimization based on application requirements
COP software watchdog
Low-leakage wakeup unit
SWD debug interface and micro trace buffer
Bit manipulation engine
32kHz to 40kHz or 3MHz to 32MHz Crystal oscillator
Multi-purpose clock source
1kHz LPO clock
Analog comparator (CMP) containing a 6-bit DAC and programmable reference input