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Article #16639High-speed max. Parallel cable length???
From: Jeremy Thomas McDonald
Date: Thu, 07 Jan 1993 22:16
Date: Thu, 07 Jan 1993 22:16
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I am using a 74HCT244 bus driver and 74LS377 octal D-latch to transmit roughly 1MB/second across a DIN-25 Parallel cable. Is there a maximum length allowed to get this transfer rate? The computer is receiving data and sending a few control signals back to the device (like the !DRDY line is pulsed back to the device after every byte is fetched). I am thinking about using a 3 foot cable. Is this too long? Should I be terminating the data lines with capacitors on the device end? I don't know anything about analog stuff, just want the digital to work. (I know... welcome to the real world...) Please e-mail me: jeremym@fraser.sfu.ca - yes a lowly computer science student.
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!destroyer!cs.ubc.ca!newsserver.sfu.ca!sfu.ca!jeremym From: jeremym@fraser.sfu.ca (Jeremy Thomas McDonald) Subject: High-speed max. Parallel cable length??? Message-ID: <jeremym.726445019@sfu.ca> Sender: news@sfu.ca Organization: Simon Fraser University, Burnaby, B.C., Canada Date: Thu, 7 Jan 1993 22:16:59 GMT Lines: 13