-=> GREG MAYMAN wrote to WAYNE CHIRNSIDE <=-

 -=> Wayne Chirnside said to Dennis Collins
 -=> about "STILL AROUND" on 10-24-04  12:44.....

 DC> ok think of them as a 14 pin ttl dip ic, pin 1 is marked, then
 DC> pin 14 is +5 and pin 7 is Gnd, the output is pin 8 from memory
 DC> and the output is 5v ttl levels.

 WC> Nit picking.
 WC> Minus transistor junction drop ;-)

 GM> Nit pickin' here too:

 GM> Some bipolar circuits use complimentary saturated common-emitter
 GM> stages that can pull the output to within a few millivolts of the
 GM> rail voltage.

Per Don Lancasters' "TTL Cook that seems unlikely except perhaps
in special driver applications such as line drivers.

The switching points for typical TTL is both above and below
each rail.

 GM> And most FET output stages can pull the level close to the rail
 GM> voltage, depending on the loading.

That's why I switched to CMOS, only draws real current while changing 
states.

 GM> But these chips probably have TTL outputs or similar.

As was said in first paragraph.
 
--- MultiMail/PBellDOS v0.42