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National Instruments 777271-01 Digital I/O Board

Part Number 777271-01 is the identifying part number for the National Instruments PC-DIO-96 Digital I/O Board. The 777271-01 features 96 digital I/O channels that are TTL-compatible. The board has the absolute maximum voltage rating from -0.5 to +5.5 V with respect to the GND. A single port is required for handshaking. The power-on state is configured as inputs in the high range( jumper selectable). Data transfers take place through interrupts or programmed I/O. 

The 777271-01 measures 6.5 by 3.9 in. in physical dimensions and features a 100-pin male, ribbon-cable I/O connector. The board typically draws 0.45 A of current at +5 VDC  (±10%) which can reach up to a maximum of 1 A. The total combined current output from pins 49 and 99 at +5V is 0.5 A max. The module supports data transfer rates up to 780 kbytes/s. However, the transfer rate will be significantly lower under typical high-level software environments and will vary. The 777271-01 exhibits the following digital logic levels: the input low voltage is defined from  -0.3 V (minimum) to 0.8 V (maximum value) the input high voltage is defined as 2.2 V (minimum) to 5.3 V  (maximum). The maximum input low current at Vin= 0.8 V is -1.0.The maximum high input current of this instrument is at Vin= 2.4 V is 1.0 μA. 

Furthermore, the low output voltage at output current = 2.5 mA is defined from 0 V (minimum) to 0.4 V (maximum). On the other hand, output high voltage at current output = -2.5 mA is defined from 3.7 V (minimum) to 5.0 V (maximum).The I/O board has a minimum -1.0 μA and a maximum of 1.0 μA Input current at the range (0 < Vin < 5 V). The 777271-01 has an operating temperature of 0 to 70° C and a storage temperature of -55 to 150° C. Similarly, the relative humidity range for the operation or storage is 5% to 90%.