Memory Stick Micro (M2) is the smallest Memory Stick format used in Sony Ericsson phones and some Sony Walkman players. Requires an adapter for use in full-size or PRO Duo slots.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | VCC | Power supply 3.3V | PWR |
| 2 | GND | Ground | GND |
| 3 | SCLK | Serial clock | BUS |
| 4 | DIO | Data input output | BUS |
| 5 | BS | Bus state | BUS |
| 6 | NC | Not connected | I/O |
| 7 | NC | Not connected | I/O |
| 8 | GND | Ground | GND |