Hi Mike, I use HC, sometimes I've used AHC when I needed some single gate ICs. 74AC logic has a low standby current, but current surges during the fast edges make a lot of additional noise and power rail bouncing. May be or maybe not a problem, but why taking chances? 8K modules with only HC/AHC logic and suitable RAM chip usually end up in the 0.1 to 3 uA standby current @3.3V. My setup lower current limit is 0.1uA, so many modules I've checked may have been better than that.
On Tue, Jan 29, 2019 at 4:53 PM Mike Stein <[email protected]> wrote: > > > ----- Original Message ----- > From: "Francesco Messineo" <[email protected]> > To: <[email protected]> > Sent: Tuesday, January 29, 2019 2:50 AM > Subject: Re: [M100] Installing 8K modules in M100 > > > > ...HCT logic should not be used for M100 hardware (it works correctly, but > > power needed is unnecessarily higher) > > > Frank IZ8DWF > ---------- > > Thanks for the tip; which logic family do you recommend instead? > > m
