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- Newsgroups: sci.electronics
- Path: 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
-
- 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.
-
-