At 08:26 PM 5/7/01 -0500, you wrote:

>Mot's violating the spec, but they became the defacto standard, and AFAIK,
>everything's still designed to work with what will work with mot receivers.

How do you figure Motorola is violating the spec? The output of the 1489
is perfectly well defined for voltages outside the range of -3V ~ + 3V.

People that use this characteristic of the 1489 receiver by _driving_ it with
TTL levels (or outputs that cannot stand being shorted to +/-30V and the rest
of it) are violating the spec, but Motorola isn't, as I see it.

Best regards,

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com
Contributions invited->The AVR-gcc FAQ is at: http://www.bluecollarlinux.com
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads