Based on MK20DX128VFM5 chip (Data Sheet):
- Cortex-M4 50 Mhz
- 160 KB Flash
- 16 KB RAM
- Full-speed USB 2.0 OTG controller: up to 16 bi-directional endpoints including EP0 (*)
- HVQFN32 packaging
(*) "16 bidirectional endpoints can be supported" (source: K20P32M50SF0RM 🔒)
| Region | Size | Start | End |
|---|---|---|---|
| Flash | 128 KB | 0x0000_0000 | 0x0002_0000 |
| SRAM | 16 KB | 0x1FFF_E000 | 0x2000_0000 |
Bootloader size is 32 KB
| Signal | I/O | Symbol | Pin |
|---|---|---|---|
| SWD | |||
| SWCLK | O | PTC5 | 26 |
| SWDIO | O | PTC6 | 27 |
| SWDIO | I | PTC7 | 27 |
| nRESET | O | PTB1 | 21 |
| UART | |||
| UART RX | I | PTC3 | 24 |
| UART TX | O | PTC4 | 25 |
| Button | |||
| NF-RST But. | I | PTB1 | 21 |
| LEDs | |||
| LED | O | PTD4 | 29 |