NXP Kinetis KL3 series 32-bit ARM Cortex-M0+ MCU, MKL33Z128VLH4, 48MHz core, 128KB Flash, 16KB RAM, 54 I/O, 20x16-bit ADC, 1x12-bit DAC, LCD controller, -40 to 105°C, 64-LQFP (10x10 mm).
| Parameter | Value |
|---|---|
| Series | Kinetis KL3 |
| Mounting type | 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 | 16K x 8 |
| Core size | 32-Bit Single-Core |
| Peripherals | DMA, I²S, LCD, LVD, POR, PWM, WDT |
| Connectivity | I²C, SPI, UART/USART |
| Number of i (O) | 54 |
| Core processor | ARM® Cortex®-M0+ |
| Case | 64-LQFP |
| Data converters | A/D 20x16b; D/A 1x12b |
| Program memory size | 128KB (128K x 8) |
The 48 MHz core speed is typical for the Kinetis KL3 value line and delivers enough throughput for a single control loop with sensor read, LCD update, and UART communication in the same cycle.
Rated for -40 to 105 °C operating temperature, the MKL33Z128VLH4 is suited for factory-floor, outdoor telecom, and engine-bay environments.
The MKL33Z128VLH4 runs at 48 MHz with 128 KB of Flash program memory and 16 KB of RAM, which is adequate for control-loop, HMI, and sensor-fusion applications but not for high-speed DSP or full TCP/IP stacks.
The Kinetis KL3 family includes pin-compatible siblings with different Flash and RAM densities, such as the MKL33Z64VLH4 (64 KB Flash) and MKL33Z256VLH4 (256 KB Flash), all in the same 64-LQFP package. These allow scaling memory without a board respin.