The NXP MKL16Z64VFM4R is a Kinetis KL1 ARM Cortex-M0+ MCU clocked at 48 MHz, with 64 KB Flash and 8 KB RAM. That clock rate is enough for a single control loop or sensor-fusion task running from internal oscillator — no external crystal needed. The 28 I/O lines, plus I²C, SPI, UART, and LINbus, cover a typical sensor hub or motor-control interface without a port expander. Ambient rating is -40°C to 105°C.
Package and mounting — wettable flank matters
Comes in a 32-HVQFN (5×5 mm) with exposed pad and wettable flanks. The wettable flank means automated optical inspection (AOI) can verify solder joints on the side — useful if your CM runs AOI on QFN packages.
No NRND or EOL flags on this line. The base product number MKL16Z64 covers the Flash/RAM variants in the KL1 family, so a pin-compatible upgrade path exists within the series if you need more memory later.