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© National Instruments Corporation
A-1
PC-DIO-24 User Manual
Appendix A
Specifications
This appendix lists the specifications for the PC-DIO-24 board. These specifications are typical at 25
°
C, unless
otherwise stated. The operating temperature range is 0
°
to 70
°
C.
Digital I/O
Number of channels ....................................................
24 I/O
Compatibility ..............................................................
TTL
Absolute max voltage input rating ..............................
-0.5 to +5.5 V with respect to GND
Handshaking ................................................................
Requires 1 port
Power-on state .............................................................
Configured as inputs
Data transfers ..............................................................
Interrupts, programmed I/O
Digital Logic Levels
Input Signals
Odd-numbered pins 1–47.........................................
Level
Min
Max
Input logic high voltage
2.2 V
5.3 V
Input logic low voltage
-0.3 V
0.8 V
Input current
(0 < Vin < 5 V)
-1.0
µ
A
1.0
µ
A
Output Signals
Pin 49 (at +5 V) ...........................................................
0.25 A max
Odd-numbered pins 1–47.........................................
Level
Min
Max
Output high voltage
(Iout = -2.5 mA)
3.7 V
5.0 V
Output low voltage
(Iout = 2.5 mA)
0.0 V
0.4 V
Output current
(V
OL
= 0.5 V)
4 mA
—
Output current
(V
OH
= 2.7 V)
4 mA
—
Environment
Operating Temperature ...............................................
0
°
to 70
°
C
Storage Temperature ...................................................
-55
°
to 150
°
C
Relative humidity ........................................................
5% to 90% noncondensing
Summary of Contents for PC-DIO-24
Page 51: ...Appendix C OKI 82C55A Data Sheet PC DIO 24 User Manual C 2 National Instruments Corporation...
Page 52: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 3 PC DIO 24 User Manual...
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Page 54: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 5 PC DIO 24 User Manual...
Page 55: ...Appendix C OKI 82C55A Data Sheet PC DIO 24 User Manual C 6 National Instruments Corporation...
Page 56: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 7 PC DIO 24 User Manual...
Page 57: ...Appendix C OKI 82C55A Data Sheet PC DIO 24 User Manual C 8 National Instruments Corporation...
Page 58: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 9 PC DIO 24 User Manual...
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Page 60: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 11 PC DIO 24 User Manual...
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Page 62: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 13 PC DIO 24 User Manual...
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Page 64: ...Appendix C OKI 82C55A Data Sheet National Instruments Corporation C 15 PC DIO 24 User Manual...
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