Contact us for an immediate quote at

104-DIO-24E PC/104 Digital I/O Cards, 24 TTL I/O, no Change of State

Acces I/O



Import duties, taxes and any additional delivery or clearance charges, are not included in the item price or the quoted shipping cost. These charges are the responsibility of the Buyer.

Please check with your local customs office to determine any additional charges prior to purchase.

Continue Shopping or View Cart

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, 24 TTL I/O, no COS. 104-DIO-24E Digital I/O Card with 24 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.