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| PCL-720+ 64-ch Digital I/O and Counter ISA Card Features 32 TTL-level digital input channels 32 TTL-level digital output channels High-output driving capacity Low-input loading 3 programmable counter/timer channels User configurable clock source Breadboard area for custom circuits RoHS 2002/95/EC COMPLIANT Introduction The PCL-720+ digital I/O and counter card is PC-compatible add-on cards with 32 digital input channels, 32 digital output channels and three programmable counter/timer channels. Their digital I/O channels are TTL-compatible and use 74LS244 driver/ buffer circuits to provide high output driving capacity. These buffered circuits also require lower input loading current than regular TTL circuits. The cards' 8254 programmable counter/timer provides three flexible 16-bit counter/timer channels. You can generate waves and pulses by programming the 8254. Jumper settings determine the clock crystal frequency. The cards also includes a breadboard area perfect for customized circuits. Specifications Digital Input Channels Compatibility Input Voltage 32 5 V/TTL Logic 0: 0.8 V max. Logic 1: 2.0 V min. General Breadboard Area 540 (30 x 18) plated-through "donuts", each with a .036" hole on 0.10" centers. Further, provide +5 V on the left side, and provide GND on the right side Bus Type ISA I/O Connectors 5 x 20-pin box header Dimensions (L x H) 185 x 100 mm (7.3" x 4") Power Consumption +5 V @ 500 mA Operating Temperature 0 ~ 60 C (32 ~ 140 F) Storage Temperature -20 ~ 70 C (-4 ~ 158 F) Storage Humidity 5 ~ 95% RH, non-condensing (refer to IEC 68-2-3) Digital Output Channels Compatibility Output Voltage Output Capability 32 5 V/TTL Logic 0: 0.5 V max. Logic 1: 2.0 V min. Sink: 0.5 V max. @ 24 mA Source: 2.0 V min. @ 15 mA Counter/Timer Channels Resolution Compatibility Max. Input Frequency Reference Clock Internal: External Clock Frequency: Programmable Counter Modes 3 16 bits 5 V/TTL 1 MHz Selectable 1 MHz, 100 kHz, or 10 kHz base clock Jumper selectable divider: x2, x1, x0.5, and x0.25 6 Ordering Information PCL-720+ PCL-10120-1 PCL-10120-2 PCLD-780 PCLD-782 PCLD-785 PCLD-786 PCLD-885 ADAM-3920 64-ch Digital I/O and Counter ISA Card 20-pin Flat Cable, 1 m 20-pin Flat Cable, 2 m Screw Terminal Board w/ Two 20-pin Flat Cables 16-ch Isolated DI Board w/ 1 m 20-pin Flat Cable 16-ch Relay Board w/ One 1 m 20-pin Flat Cable 8-ch SSR I/O Module Board w/ 20-pin Flat Cable 16-ch Power Relay Board w/ 20p & 50p Flat Cables 20-pin DIN-rail Flat Cable Wiring Board Data Acquisition Boards |
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