| Technical Specifications |
| DIGITAL INPUT/OUTPUT |
| Digital type: | 74ACT373 USB-DIO96H hardware revision G and later: 74LCX24
Output: 74FCT244 |
Number of I/O | 96 | | Configuration | Eight banks of 8, eight banks of 4, programmable by bank as input or output |
| Pull-up/down configuration | High impedance pull-up/down selectable with DIP switch for each digital input port. |
| Input high | 2.0 V min, 5.5 V absolute max |
| Input low | 0.8 V max, -0.5 V absolute |
| Output high | 2.0 V min @ –24 mA |
| Output low | 0.5 V max @ 64 mA |
| Input impedance | 47 kΏ (series resistance) |
| Source current | 24 mA per output max |
| Power-up state | Input mode |
| Sink current | 64 mA per output max |
| Debounce mode | samples all inputs eight times over a specified interval, and latches out the input state when eight consecutive samples are identical (all 0 or all 1). Debouncing intervals: 1 ms, 2 ms, 5 ms, 10 ms, 20 ms, 50 ms, 100 ms, 200 ms, and 400 ms. |
| Debounce interval accuracy | +0% / –12.5% |
| COUNTER |
| Pin name | CTR; Schmitt trigger input protected with a 1.5 kOhms series resistor |
| Counter type | Event counter |
| Number of channels | 1 |
| Input type | TTL, rising edge triggered |
| Input source | CTR Screw terminal |
| Resolution | 32 bits |
| Input high voltage limit | 5.0 V recommended max, 5.5 V absolute max |
| Input leakage current | +-1 µA |
| Input low voltage limit | 0 V recommended min, –0.5 V absolute min |
| High pulse width | 500 ns min |
| Low pulse width | 500 ns min |
| Input low voltage | 0 V min, 1.0 V max |
| Input high voltage | 4.0 V min, 15.0 V max |
| DATA TRANSFER RATES |
| Digital I/O transfer rates (software paced) | System dependent, 33 to 250 port reads/writes or single bit reads/writes per second type |
| Counter/timer read/write rates (software paced) | USB-DIO96H only
Counter read: system dependent, 33 to 250 reads per second
Counter clear: system-dependent, 33 to 250 writes per second |
| POWER |
| USB +5V Supply current | < 100 mA |
| USB +5V input voltage range | 4.75 V min to 5.25 V max |
| External power supply | 5 VDC, 15 W, 5% regulation |
| Alternate external power supply | Jumper selectable Molex® connector internal to case |
| Voltage supervisor limits | 4.13 V > Vext or Vext > 5.59 V: PWR LED = Off; (power fault)
4.13 V < Vext < 5.59 V: PWR LED = On |
| User 5 V output voltage rang | 4.0 V min, 5.25 V max |
| VUser 5 V output current available | 50 mA max |
| Power supply current: | 2.7 A max |
| ENVIRONMENTAL |
| Operating temperature range | 0 °C to 60 °C |
| Storage temperature range | –40 °C to 85 °C |
| Humidity | 0% to 90% non-condensing |
| MECHANICAL |
| Dimensions (L x W x H) | 304.8 × 121.9 × 20.0 mm (12.0 × 4.8 × 0.8 in.) |
| Enclosure dimensions (L x W x H) | 342.9 × 125.7 × 58.9 mm (13.50 × 4.95 × 2.32 in.) |
| USB cable type | A-B cable, UL type AWM 2725 or equivalent. Min 24 AWG VBUS/GND, min 28 AWG D+/D– |
