NXP Kinetis K20 series, ARM Cortex-M4, 32-bit, 50 MHz, 32 KB Flash, 8 KB RAM, 48-VFQFN exposed pad, -40°C 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 |
| 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-VFQFN Exposed Pad |
| Data converters | A/D 11x16b |
| Program memory size | 32KB (32K x 8) |
It carries 32 KB of Flash and 8 KB of RAM.
The 50 MHz ARM Cortex-M4 core includes a single-cycle MAC and a hardware divide — enough for a 16-point FIR filter or a PID loop running at a few kHz. It is not a DSP replacement, but it handles sensor fusion or motor-current control without a separate co-processor. The DMA engine offloads peripheral transfers (USB, ADC, serial) so the core stays free for the control algorithm.
The MK20DN32VFT5 is supplied in a 48-VFQFN exposed pad package (7x7 mm body). The exposed pad must be soldered to a ground-plane thermal via array for proper heat dissipation.
Yes, the MK20DN32VFT5 includes USB OTG (On-The-Go) along with USB device and host modes. The connectivity block also covers I²C, SPI, UART, IrDA, and USB — all on a single 48-pin package.
The Kinetis K20 family includes pin-compatible density upgrades — the MK20DN64VFT5 (64 KB Flash) and MK20DN128VFT5 (128 KB Flash) share the same 48-QFN-EP footprint, same peripheral set, and same supply range. A firmware recompile is the only change needed to move up in memory.