IO203
IO203 — The IO203 is a digital I/O module
providing a total of 64 TTL channels.
Introduction
The IO203 is a digital I/O module providing a total of 64 TTL channels. The
transceivers are TTL and CMOS/TTL compatible (5V/3.3V, ±24mA available for 3.3V
usage only) and can also be set to be CMOS compliant by onboard jumper.
Each of the 64 channels can be individually programmed as an input or output.
Internally the 64 channels are divided in two groups of 32, and each one is accessed
via a single bus access cycle which leads to a simultaneous update of each group
with very low latency.