What this MK22DX256VLF5 brings to the board
It packs 256 KB of Flash, 32 KB of RAM, and 4 KB of EEPROM on-chip.
NXP continues to manufacture and support this series.

NXP Kinetis K20 series, MK22DX256VLF5, ARM Cortex-M4 50MHz, 256KB FLASH / 32KB RAM, 14x16b A/D, USB OTG, I2C/SPI/UART, 29 I/O, 1.71–3.6V supply, -40°C to 105°C, 48-LQFP (7×7mm) tray.
| 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 | 32K x 8 |
| Core size | 32-Bit Single-Core |
| EEPROM size | 4K 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 14x16b |
| Program memory size | 256KB (256K x 8) |
It packs 256 KB of Flash, 32 KB of RAM, and 4 KB of EEPROM on-chip.
NXP continues to manufacture and support this series.
The MK22DX256VLF5 runs at 50 MHz on the ARM Cortex-M4 core.