From: Jim Thompson
Subject: Re: ? Binary to BCD conversion chip ?
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Date: Fri, 29 Nov 2002 17:31:34 GMT
NNTP-Posting-Date: Fri, 29 Nov 2002 12:31:34 EST
Organization: Cox Communications
On Thu, 28 Nov 2002 02:08:18 GMT,
"Yi-Zen Chu; Yiren Qu" <""y i z e n \"@ u c l i n k 4 .
b e r k e l e y . e d u>,
In Newsgroup: sci.electronics.design,
Entitled: "? Binary to BCD conversion chip ?",
Wrote the following:
|Does anyone know if there's any IC chip commercially available that can
|convert a 4 (or 8 bit) number to BCD? Where can I buy it? I tried
|looking up on the Net but only found 74185, which seemed to be discontinued?
|Thanks for the help!
|PS. Sorry for the cross-posting; I'm not sure where this question should
4-bit is trivial, requiring around 10 gates and 3 inverters. 8-bit
would be a royal bitch ;-)
See http://www.puz.com/sw/karnaugh/index.htm for a nice tool (KMAP445)
to work out the logic.
There is also http://www.patdouble.com/switchmin/switchmin.htm but
this link is down right now.
SwitchMin can handle up to *32 inputs*, but is much more difficult to
work with than KMAP (at least for us analog types ;-)
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| Jim-T@analog_innovations.com Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
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