National Instruments Corporation DAQCard-500 User Manual page 38

Specifications
Digital I/O
Number of channels ..................................................... 4 input and 4 output
Compatibility ............................................................... TTL
Digital logic levels ...................................................
Timing I/O
Number of channels ..................................................... 3 counter/timers (1 dedicated to analog input)
Resolution..................................................................... 16 bits
Compatibility ............................................................... TTL, gate and source pulled high with 100 k resistors
Base clocks available ................................................... 1 MHz
Base clock accuracy ..................................................... ±0.01%
Max source frequency ..................................................10 MHz
Min source pulse duration ............................................50 ns
Min gate pulse duration................................................50 ns
Data transfers ............................................................... Programmed I/O
Bus Interface
Type ............................................................................. Slave
Power Requirement
+5 VDC (±5%)............................................................. 60 mA in operational mode
Note: These power usage figures do not include the power used by external devices that you have connected to the
fused supply present on the I/O connector.
Physical
PC Card type ................................................................Type II
I/O connector................................................................27-pin male
Environment
Operating temperature..................................................0° to 70° C
Storage temperature ..................................................... -55° to 150° C
Relative humidity ......................................................... 5% to 90% noncondensing
DAQCard-500 User Manual
Level
Input low voltage
Input high voltage
Input low current (V in = 0 V)
Input high current (V in = 5 V)
Output low voltage
(I = 4 mA)
OUT
Output high voltage
(I = 4 mA)
OUT
20 mA in power-down mode
A-2
Appendix A
Min
0 V
2 V
— -50 µA
—
—
3.3 V
© National Instruments Corporation
Max
0.8 V
5 V
1 µA
0.9 V
—