Alt-BEAM Archive
Message #10095
To: beam@sgiblab.sgi.com
From: Bruce Robinson Bruce_Robinson@telus.net
Date: Sat, 12 Feb 2000 08:26:26 +0800
Subject: Re: 74x240 question
> Thomas Pilgaard wrote:
> >
> > Is there a difference between the HC and HCT types?
>
> They are essentially the same. The HCT family has inputs that are
> directly compatible with TTL logic (LS, ALS families), whereas the HC
> family needs to have pullup resistors when receiving signals from TTL
> logic.
>
> Normally this difference is irrelevant to us.
>
> Regards,
> Bruce
Home