NXP Kinetis KL2 series, MKL24Z32VFM4, 32-bit ARM Cortex-M0+ MCU, 48 MHz, 32 KB Flash, 4 KB RAM, USB OTG, I²C/SPI/UART/LINbus, 1.71–3.6 V supply, -40 to 105°C, 32-HVQFN (5×5 mm) wettable flank, tray.
| Parameter | Value |
|---|---|
| Series | Kinetis KL2 |
| Mounting | Surface Mount, Wettable Flank |
| 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, USB, USB OTG |
| Number of i (O) | 23 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 32-VFQFN Exposed Pad |
| Data converters | A/D 7x12b |
| Program memory size | 32KB (32K x 8) |
The 48 MHz Cortex-M0+ delivers single-cycle multiply and a two-stage pipeline, enough for sensor-fusion loops at a few kHz and USB packet handling without a dedicated USB controller. Paired with 4 KB RAM, keep the stack lean — a full USB composite device may push the heap boundary.
Active lifecycle per NXP — no end-of-life notice. No second-source cross-reference listed, but the Kinetis KL2 family shares a common pinout across density options.
The Kinetis KL2 family uses a common pinout across Flash densities. The MKL24Z64VFM4 (64 KB Flash) and MKL24Z128VFM4 (128 KB Flash) are pin-compatible drop-in upgrades if firmware size grows.
The MKL24Z32VFM4 is rated for -40°C to 105°C (TA), which qualifies it for industrial and automotive under-hood environments.