[SI-LIST] : Schottky diode termination

Fred Rosenberger (fred@gpc.ibc.wustl.edu)
Wed, 28 Oct 1998 08:50:07 -0600 (CST)

Note that for TTL, the resistor in the collector of the pullup transistor
(50 to 200 ohms depending on family) acts as a (somewhat) series termination.
Thus TTL is diode clamped for HL transistions, and series terminated
(approximately) for LH transitions. There is no need for diode
clamping on LH transitions (typically).

Regards,

Fred

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