Product Datasheet

This product is RoHS-compliant

Please contact us if you require a non-RoHS version.

Please note, Acces I/O products are often available in an array of different options, of which only a selection will be displayed here. Please contact us for pricing if you require a product option that is not shown on our website.

PC/104, 28 TTL I/O, no COS. 104-DIO-48E Digital I/O Card with 48 parallel lines of Digital I/O Type 82C55 PPI mode 0, compatible with Opto-22 type Solid State Module Racks. 

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.

The optional 82C54 has three-sixteen bit down-counters within one chip. These counters are useful for making frequency outputs, measuring frequency of square waves, pulse width outputs, pulse width measurements etc. Software drivers are provided on CD.