104-DIO24E ADL | Alldatasheet
Document overview
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Technical content
Features
- 48 or 24 Parallel Bits of Digital I/O, Type 82C55 PPI (Mode 0)
- Compatible with Opto-22 type Solid State Module Racks
- One or two 24 parallel bit groups (two 8 bit port) and two 4 bit ports each group.
- All bits are buffered, 64mA sink, 32mA source
- I/O pulled up to 5V for Contact Monitoring, pulldowns are available by request
- 5V available on pin 49 of each group (0.5A Resettable Fuse on each)
- I/O connectors: Two Industry Standard 50 pin headers plus one ten-pin header for the counter/timer
- Timer/Counter Type 82C54 Native Modes: Pulse and square wave generator Re-triggered one-shot S/W or H/W triggered strobe Rate generator
Description
The circuits use an 82C55A PPI with mode 0 supported. Ports A, B and C are buffered with 74ABT245 transceivers and pulled up to 5V (standard). The optional 82C54 has three-sixteen bit down-counters within one chip. These counters are useful for generating square waves, strobes, and pulses (PWM). Also, the frequency of square waves and strobes or the width of pulses or the number of events can be measured. Software is provided. Low power circuits are used with an overall consumption as low as 0.25 Watts. Software Package includes a setup program detailing all jumper settings, also IRQ drivers and samples for DOS and Windows (including NT/2000 and NT/XP). A Linux Sample is also provided.
Ordering Information
Item code Part # Description 104-DIO24E 310240 PC/104-Analog I/O Board 104-DIO 48E 310480 PC/104-Analog I/O Board
Manufacturer USA Distributor & Support Center R epresentative Acces I/O Products, Inc. Advanced Digital Logic, Inc. 10623 Roselle Street 4411 Morena Blvd., Suite 230 San Diego, CA 92121-1506 San Diego, CA 92117-4328 Email: sales@adlogic-pc104.com http://www.adlogic-pc104.com Technical Specifications 104DI024-48e rev12/02 Features Functions Remarks Digital Input/Output Interface Chip 82C55A Programmable Channels 24 (2 x 8bit; 2 x 4bit); pulled up to 5V on 10kOhm 24 buffered (Ports A,B,C) Modes Supported 0 Sink/Source Current 64mA/32mA Counter/Timer Interface Chip 82C54 Counters 3 x 16bit down counters Clock 8MHz on-board Modes Event, Freq. Output, Freq. & Pulse Measurement General Dimensions 3.8” x 3.6” x 0.6” Height from surface of board Power Supply +5V/50 mA T ypical Interrupt Requests IRQ 3-7,9-12,14,15 Selectable Operating Temperature -20°C to +70C Enhanced Temperature (opt.) -40°C to +85°C Interrupt Status Register Yes 104-DIO-24E 104-DIO-48E