Path: utzoo!attcan!uunet!pilchuck!amc-gw!richm
From: richm@amc-gw.amc.com (Rich Moran)
Newsgroups: sci.electronics
Subject: Re: info on transceivers with low voltage swing on output wanted
Message-ID: <2425@amc-gw.amc.com>
Date: 23 Jul 90 16:03:10 GMT
References: <1990Jul19.172230.9515@vicom.com}
Reply-To: richm@the-end.amc.com (Rich Moran)
Organization: Applied Microsystems, Redmond, WA
Lines: 29

In article <1990Jul19.172230.9515@vicom.com> collins@vicom.com (Tracy Collins) writes:
}Specifically, I am looking for a pin-compatible replacement for
}an F245 octal transceiver.
}
}Requirements are:
}
}	B bus must handle 64 mA
}	A bus must handle 20 mA
}	B bus has low (~3 V) voltage swing
}	prop delay of 7 ns, max.
}
}As you may have guessed, I need this part to reduce noise
}on a backplane by reducing the voltage swing of the backplane
}signals.  The other possibility of reducing the noise is to
}slow the edge rate.  Are there transceivers with edge rate 
}(slew rate) control, pin-compatible with the 245?

National Semiconductor has a family they call the 'Quiet' series, which
is a BiCMOS process with controlled edge rates and ~3V swing.  I believe
that performance is similar to FAST parts.
=============================================
Rich Moran
richm@amc.com
=============================================
-- 
=============================================
Rich Moran
richm@amc.com
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