Path: utzoo!utgpu!water!watmath!clyde!att!ucbvax!decwrl!nsc!grenley
From: grenley@nsc.nsc.com (George Grenley)
Newsgroups: comp.sys.nsc.32k
Subject: Re: Are these things suppose to be hot?
Message-ID: <5249@nsc.nsc.com>
Date: 25 Jul 88 20:16:05 GMT
References: <4413@latcs1.oz>
Reply-To: grenley@nsc.UUCP (George Grenley)
Organization: National Semiconductor, Sunnyvale
Lines: 18

On hot running parts...

In article <4413@latcs1.oz> kevin@latcs1.oz (Kevin James Bertram) writes:
>What I would like to know is :- is it normal for
>the 32201D-8 (TCU) to get uncomfortably hot to touch (Xtal frequecy is 16 MHz)?
>And if so why is it that the CPU  (32032E-10) runs heaps cooler?

The 32201 is spec'd at 260 mA, = 1.3 watts, at 10 mhz.  It is a nmos type
process, so it uses a lot of current.  Be aware that most of the power in
an IC is used by the drivers, not the internal logic.  In particular, clock
drivers suck amps.

Try a 32C201, if you have access to one.  It is cooler.

Regards,
George Grenley
person in charge of stuff
National Semiconductor