NXP Kinetis K20, MK20DX32VLH5, 32-bit ARM Cortex-M4 single-core MCU; 50MHz, 32KB Flash, 8KB RAM, 2KB EEPROM, 40 I/O, USB OTG/I2C/SPI/UART, 1.71–3.6 V, -40°C to 105°C, 64-LQFP (10x10mm) Tray.
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Specifications
| Parameter | Value |
|---|---|
| Series | Kinetis K20 |
| 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 | 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) | 40 |
| Core processor | ARM® Cortex®-M4 |
| Case | 64-LQFP |
| Data converters | A/D 13x16b |
| Program memory size | 32KB (32K x 8) |
Frequently asked questions
Does the USB OTG peripheral work with USB 2.0 full-speed without an external PHY?
The on-chip USB OTG controller integrates the PHY for full-speed operation — no external transceiver is required for USB device or OTG roles at full-speed data rates. For high-speed (480 Mbps) or if the application host stack requires a crystal-referenced clock, evaluate the internal oscillator accuracy against the ±0.25% USB frame requirement.
What is the minimum supply voltage, and does it support 5 V logic?
The minimum operating supply is 1.71 V and the maximum is 3.6 V. The I/O is not 5 V-tolerant. Boards with 5 V digital logic elsewhere need a level-shifter or must be designed with a separate 3.3 V rail for this MCU.