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Data Acquisition

Data Acquisition > Products By Manufacturer > Measurement Computing > PCMCIA > Digital I/O > Parallel

PCC-D24/CTR3 - 24 digital I/O (82C55) plus 3 counters (82C54)

24 digital I/O (82C55) plus 3 counters (82C54)
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Contact us on: 01462 480055 or email daq@adeptscience.co.uk.

Price: £ 180.00
Availability: Usually dispatched within 5 - 10 working days

This item qualifies for FREE DELIVERY (UK mainland ONLINE orders only).


Detailed Specification  Product Manual   Features:
  • 24 digital inputs or outputs
  • 2 banks of 8 each, plus 2 banks of 4 each
  • Based on 82C55 I/O chip, programmable in three modes; input/output, strobed I/O, or bi-directional bus
  • 82C54 counter provides three, 16- bit counters
  • Extremely low cost
  • Compatible with PCMCIA type II or III slots
  • Closely compatible with ISA board structure
  • Fully plug-and-play


Digital Specifications:
Configuration: 82C55, 2 banks of 8 each, plus 2 banks of 4 each (24 inputs total)
Programmable as: Each bank as input or output
Output High Voltage: 3.0 volts min. @-2.5 mA
Output Low Voltage: 0.4 volts max. @2.5 mA
Input High Voltage: 2.2 volts min., 5.5 V absolute max.
Input Low Voltage: 0.8 volts max. -0.5 V abs. min.
Absolute max input voltage: -0.5 V, +5.5 V
Power-up/Reset State: Input mode (high impedance)
Interrupts: Programmable levels 2 to15
Interrupt enable: Programmable
Interrupt sources: Programmable: external (Ext Int) or internal (counter 1 output, counter 2 output, counter 3 out, 82C55 port C bit C0 or bit C3)

Counter Specifications:

Counter Type: 82C54
Configuration: 3, 16-bit down-counters
Counter 1 clock: Internal 10 MHz or external
Counter 1 Gate: External
Counter 1 Output: To user or to Counter 2 clock
Counter 2 clock: Internal 10 MHz, or Counter 1 output, or external.
Counter 2 Gate: External
Counter 2 Output: To user or to Counter 3 clock
Counter 3 clock: Internal 1 MHz, or Counter 2 output, or external.
Counter 3 Gate: External
Counter 3 Output: To user connector
Clock input pulse width (high): 30 ns minimum
Clock input pulse width (low): 50 ns minimum
Gate width, high-going: 50 ns minimum
Gate width, low-going: 50 ns minimum
Input low voltage: 0.8V maximum
Input high volltage: 2.0V minimum
Output low voltage: 0.4V maximum
Output high voltage: 3.0V minimum
Crystal Oscillator: 10 MHz
Frequency accuracy: 50 ppm
Output frequency available: 1 MHz

Software Description:
Includes InstaCal ® , installation, calibration and test software. Supported by UniversalLibrary ®. Also supported by a wide variety of applications software packages including SoftWIRETM, DAS-WizardTM, HP VEE®, HP VEE Lab, LabView®, and most other third party, high-level data acquisition programs.

Cables and Connectors:
CPCC-50F-39 One-meter Cable, (or)
CPCC-50M-4 4-inch Adapter Cable (and)
C50FF-XX Cable ordered to desired length
CIO-MINI50 50-pin, screw terminal board
SCB-50 Shielded 50-pin, screw terminal connection box





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24 digital I/O (82C55) plus 3 counters (82C54)
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Adept Scientific | Amor Way | Letchworth Garden City | Herts | SG6 1ZA | Tel: +44 (0)1462 480055