NXP Kinetis KL1 series, 32-bit ARM Cortex-M0+ MCU, MKL14Z32VLH4, 48 MHz core, 32 KB Flash, 4 KB RAM, 54 GPIO, I²C/SPI/UART/LINbus, 1.71-3.6 V supply, -40 to 105 °C, 64-LQFP tray.
| Parameter | Value |
|---|---|
| Series | Kinetis KL1 |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.71V ~ 3.6V |
| Operating temperature | -40°C~105°C(TA) |
| Speed | 48MHz |
| Package | Tray |
| RAM size | 4K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | Brown-out Detect/Reset, DMA, LVD, POR, PWM, WDT |
| Connectivity | I²C, LINbus, SPI, UART/USART |
| Number of i (O) | 54 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 64-LQFP |
| Data converters | A/D 16x12b |
| Program memory size | 32KB (32K x 8) |
32 KB of program Flash and 4 KB of SRAM place this part in the entry-density tier of the Kinetis KL1 family. That is enough for a bootloader plus a single-protocol stack.
The 1.71 V to 3.6 V supply range lets this MCU run directly from two alkaline cells or a single Li-ion cell without a boost regulator. At the low end, 1.71 V is the minimum for the Flash read path.
The operating temperature range is -40 °C to 105 °C, which qualifies it for industrial and automotive-adjacent environments such as factory automation, outdoor telecom, and engine-bay-adjacent enclosures.
The MKL14Z32VLH4 runs at 48 MHz from an ARM Cortex-M0+ core, delivering enough throughput for control loops, protocol handling, and sensor polling in embedded systems.