PCI (Peripheral Component Interconnect) 32-bit slot has 124 pins providing a 32-bit parallel bus at 33 or 66 MHz for a maximum bandwidth of 266 MB/s. Used for expansion cards from 1993 to 2010.
| Pin | Name | Function | Type |
|---|---|---|---|
| 1 | GND | Ground | GND |
| 2 | TRDY# | Target ready active low | I/O |
| 3 | STOP# | Stop transaction | I/O |
| 11 | AD0 | Address data bus bit 0 | I/O |
| 12 | AD1 | Address data bus bit 1 | I/O |
| 48 | VCC | 5V or 3.3V supply | PWR |
| 62 | CLK | PCI clock 33 or 66 MHz | BUS |
PCI (Peripheral Component Interconnect) 32-bit slot has 124 pins providing a 32-bit parallel bus at 33 or 66 MHz for a maximum bandwidth of 266 MB/s. Used for expansion cards from 1993 to 2010.