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DM74AS286

Fairchild Semiconductor
Part Number DM74AS286
Manufacturer Fairchild Semiconductor
Description 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O Port
Published Apr 1, 2005
Detailed Description DM74AS286 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O Port October 1986 Revised April 2000 DM74AS286 9-B...
Datasheet PDF File DM74AS286 PDF File

DM74AS286
DM74AS286

Overview
DM74AS286 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O Port October 1986 Revised April 2000 DM74AS286 9-Bit Parity Generator/Checker with Bus-Driver Parity I/O Port General Description These universal, 9-bit parity generators/checkers utilize advanced Schottky high performance circuitry and feature odd/even outputs to facilitate operation of either odd or even parity applications.
The word length capability is easily expanded by cascading.
The DM74AS286 can be used to upgrade the performance of most systems utilizing the DM74AS280 parity generator/ checker.
Although the DM74AS286 is implemented without expander inputs, the corresponding function is provided by the availability of an input pin XMIT.
XMIT is a control line which makes parity error output active and parity an input port when HIGH; when LOW, parity error output is inactive and parity becomes an output port.
In addition, parity I/O control circuitry contains a feature to keep the I/O port in the 3-STATE durin...


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