| Technical specifications |
| Digital input / output |
| Digital type | 82C55 Emulation |
| Configuration | 2 banks of 8, 2 banks of 4, programmable by bank as input or output |
| Output | Ports A and B: 74HC245A Port C: 74HC126 |
| Input | Ports A and B: 74HC245A Port C: 74HC125 |
| Number of channels | 24 I/O |
| Switch State | Board Silk Screen Reference: S1 - Default +5V |
| 3.3 V | Output high | 2.8 volts min @ -2.5 mA |
| Output low | 0.3 volts max @ 2.5 mA |
| Input high | 2.6 volts min, 3.6 volts absolute max |
| Input low | 1.3 volts max, -0.5 volts absolute min |
| 5 V | Output high | 4.5 volts min @ -2.5 mA |
| Output low | 0.3 volts max @ 2.5 mA |
| Input high | 2.6 volts min, 5.5 volts absolute max |
| Input low | 1.3 volts max, -0.5 volts absolute min |
| Power-up / reset state | Input mode (10 k impedance from pull-up or pull-down) |
| Pull-up/pull-down resistors | EEPROM stored - Software Programmable driven by 74ACT244 through 10 k bussed
resistor networks (shipped in the pull-up state) |
| Interrupt enable | External (IRQ ENABLE, active low, disabled by default through internal resistor to TTL
high) and programmable through PCI9030; 0 = disabled, 1 = enabled (default) |
| Interrupt sources | External source (IRQ INPUT), polarity programmable through PCI9030;
1 = active high, 0 = active low (default) |
| Power consumption |
| +3.3 V operating | 515 mA typical |
| +3.3 V with 5 V I/O | 520 mA typical |
| +VDIO User Output | 125 mA max. @ +5V; 375 mA max. @ +3.3 V |
Fuses: +VDIO User Output
+12 V | 0452.375 - Littelfuse 0.375A NANO2® Slo-Blo® Subminiature Surface Mount Fuse |
| Environmental |
| Operating temperature range | 0 to 50 °C |
| Storage temperature range | -20 to 70 °C |
| Humidity | 0 to 90% non-condensing |
| Mechanical |
| Card dimensions | 167.4 mm (L) x 111.2 mm (H) x 18.72 mm (W max)
6.59" (L) x 4.38" (H) x 0.74" (W max) |
| General |
| Bus Type | PCI Express 1.1 |
| Bus Width | x1 lane PCI Express |
