Developed by SanDisk. Is compatible with PC-Card ATA with a simple passive adapter. See ATA for more information. 50 PIN ??? MALE at the controller. 50 PIN ??? FEMALE at the peripherals. Pin | Name | Description | 1 | GND | Ground | 2 | D3 | Data 3 | 3 | D4 | Data 4 | 4 | D5 | Data 5 | 5 | D6 | Data 6 | 6 | D7 | Data 7 | 7 | /CE1 | Card Enable 1 | 8 | A10 | Address 10 | 9 | /OE | Output Enable | 10 | A9 | Address 9 | 11 | A8 | Address 8 | 12 | A7 | Address 7 | 13 | VCC | +5V | 14 | A6 | Address 6 | 15 | A5 | Address 5 | 16 | A4 | Address 4 | 17 | A3 | Address 3 | 18 | A2 | Address 2 | 19 | A1 | Address 1 | 20 | A0 | Address 0 | 21 | D0 | Data 0 | 22 | D1 | Data 1 | 23 | D2 | Data 2 | 24 | /WP:/IOIS16 | Write Protect : IOIS16 | 25 | /CD2 | Card Detect 2 | 26 | /CD1 | Card Detect 1 | 27 | D0 | Data 0 | 28 | D0 | Data 0 | 29 | D0 | Data 0 | 30 | D0 | Data 0 | 31 | D0 | Data 0 | 32 | /CE2 | Card Enable 2 | 33 | /VS1 | Refresh | 34 | /IORD | I/O Read | 35 | /IOWR | I/O Write | 36 | /WE | Write Enable | 37 | /READY:/RDY:/IREQ | Ready : Busy : IREQ | 38 | VCC | +5V | 39 | CSEL | | 40 | /VS2 | RFU | 41 | RESET | Reset | 42 | /WAIT | Wait | 43 | /INPACK | | 44 | /REG | Register Select | 45 | /BVD2:SPKR | Battery Voltage Detect 2 : SPKR | 46 | /BVD1:STSCHG | Battery Voltage Detect 1 : STSCHG | 47 | D8 | Data 8 | 48 | D9 | Data 9 | 49 | D10 | Data 10 | 50 | GND | Ground | |