Re: Fast NPN/PNP transistors for a totempole driver


Fred Bloggs skrev:

> >
> > I have a 74HCT14 hex inverter driving a NPN/PNP (BC847/BC857) totempole
> > stage connected to GND and 5V
>
> Excuse me...but a PNP/NPN combo is not a "totempole." Who the hell knows
> what this person is asking? I hope he communicates to himself better
> than this- he will be stuck forever.
>
> [snip]

Sorry for that. The confusion was on my part. In the beginning was
using an inverted totempole. That is pull-up resistor (because I don't
care about the risetime) and a PNP to sink to ground (fast)

Regards

Klaus

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