NXP Kinetis K20 series, ARM Cortex-M4 32-bit MCU, 50 MHz, 32 KB Flash, 8 KB RAM, 2 KB EEPROM, 48-LQFP, -40 to 105 °C.
| Parameter | Value |
|---|---|
| Series | Kinetis K20 |
| 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 | 50MHz |
| Package | Tray |
| RAM size | 8K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 2K x 8 |
| Peripherals | DMA, I²S, LVD, POR, PWM, WDT |
| Connectivity | I²C, IrDA, SPI, UART/USART, USB, USB OTG |
| Number of i (O) | 29 |
| Core processor | ARM® Cortex®-M4 |
| Case | 48-LQFP |
| Data converters | A/D 11x16b |
| Program memory size | 32KB (32K x 8) |
The NXP MK20DX32VLF5 is a 32-bit ARM Cortex-M4 microcontroller from the Kinetis K20 family, running at 50 MHz with 32 KB of Flash and 8 KB of SRAM. It integrates 2 KB of EEPROM on-chip.
It will sit comfortably in a motor drive cabinet, an outdoor telecom pole-mount enclosure, or an engine-bay control module.
The MK20DX32VLF5 has 32 KB of Flash program memory.
The Kinetis K20 family includes 64 KB and 128 KB Flash variants (e.g., MK20DX64VLF5, MK20DX128VLF5) that share the same 48-LQFP pinout, peripheral set, and supply voltage. The main difference is Flash and RAM capacity — a direct swap for firmware growth without a board spin.
The MK20DX32VLF5 datasheet is published by NXP under the Kinetis K20 family documentation. It covers the full electrical specifications, timing diagrams, and peripheral register maps.
The MK20DX32VLF5 is not an Arduino-form-factor board; it is a bare MCU in a 48-LQFP package. However, the Teensy 3.x platform uses a similar Kinetis K20 MCU, so code written for that ecosystem can be ported with pin-mapping adjustments.