Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!decwrl!mcnc!taco!ecersg.ncsu.edu!kwf
From: kwf@ecersg.ncsu.edu (Ken Fernald)
Newsgroups: sci.electronics
Subject: low-power 4-bit uP, any suggestions?
Message-ID: <1991Mar15.201043.7047@ncsu.edu>
Date: 15 Mar 91 20:10:43 GMT
Sender: news@ncsu.edu (USENET News System)
Reply-To: kwf@ecersg.ncsu.edu (Ken Fernald)
Organization: North Carolina State University
Lines: 19


I need a cheap, low power 4-bit microcontroller for use in a battery powered
thingamagig.  It should have the ability to enter a low-power mode
where it waits for an interrupt for an internal timer (an 8 or 16 bit timer
would be nice).  I need a small amount of internal ram (128 bytes), about
1K PROM, and either a few i/o lines or external address and data busses.
The current in wait mode should be < 100uA running at 32KHz. (Vdd <= 9V).
An internal LCD segment driver would be nice too.

My IC Master has dozens of 4-bit CMOS uC.  Would anyone care to suggest
a particular chip which fits these requirements?

thanks,

--
+----------------------------+
|    Kenneth W. Fernald      |
|  kwf@ecersg.ece.ncsu.edu   |
| North Carolina State Univ. |