Based on MKL27Z256VFM4 chip (Data Sheet):
- Cortex-M0+ 48 Mhz
- 256 KB Flash
- 32 KB RAM
- Full-speed USB 2.0 device controller: up to 16 bi-directional endpoints including EP0 (*)
- HVQFN32 packaging
(*) "16 bidirectional endpoints can be supported" (source: KL27P64M48SF6RM 🔒)
| Region | Size | Start | End |
|---|---|---|---|
| Flash | 128 KB | 0x0000_0000 | 0x0002_0000 |
| SRAM | 32 KB | 0x1FFF_E000 | 0x2000_6000 |
Bootloader size is 32 KB
| Signal | I/O | Symbol | Pin |
|---|---|---|---|
| SWD | |||
| SWCLK | O | PTC6 | 27 |
| SWDIO | I/O | PTC5 | 26 |
| nRESET | O | PTA20 | 19 |
| UART | |||
| UART RX | I | PTA18 | 17 |
| UART TX | O | PTA19 | 18 |
| Button | |||
| F-RST But. | I | PTD4 | 29 |
| LEDs | |||
| HID LED | O | PTB0 | 20 |
| MSD LED | O | PTD0 | 20 |
| CDC LED | O | PTD0 | 20 |