sync problems:soft

Paul Perry pfperry at melbpc.org.au
Fri Nov 13 15:58:51 CET 1998


At 04:03 PM 12/11/98, Scott Gravenhorst  wrote:

>output, which is TTL compatible when powered at 5 volts, is a typical totem
>pole config, ie two transistors, the top one's collector to Vcc rail, the
>bottom transistor's emitter goes to ground.  The top emitter and bottom
>collector together provide the output.  When quiescent, only one of the
>transistors is conducting, however at the moment that the device changes
>state, both transistors are on !!! at the same time !!!  Only for an instant
>but long enough to induce a nasty little glitch. 

Is it possible to replace with a CMOS version of the 555?
I understand this has no glitch....

paul perry melb aust
>




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