🚀 go-pugleaf

Andrew Cerasuolo (andrew@deakin.edu.au) wrote:

 > I'm about to redo a timer which used a mostek mk 50397 chip for a project.
 > Is it still available especially here in Australia (Who are the agents ?.)
 > Or is there another chip which I could use ?. My application requires :
 > 	a) counting time up to 59 hrs 59 mins 99/100 mins this was done with MK
 > 50397 by changing input frequency to 1.6Hz. 	b) low power consumption i.e
 > portable & battery operated. 	c) A hold button so count updates but display
 > holds value. 	d) display (original had a a 6 digit LCD).
 > Has anyone done anything similar , should I just an 68hc11 etc, can anyone
 > give me some help ?. Any answers would be appreciated.
 > --
 > Andrew Cerasuolo                        	PHONE: (052)  271380
 > Faculty of Science & Technology Workshop	FAX:   +61 52 272326
 > Deakin University
 > Vic 3217, Australia                     	EMAIL: andrew@deakin.edu.au

In 1976 I used the counters MK50395N and MK50396N from Mostek. Meanwhile
the chips are not longer produced by Mostek (so far I know), but a company
named MICREL still produces the chips "MIC50395N" and "MIC50396N".
They should have the 50397 too.

A german distributor is:

MATRONIC GMBH
LICHTENBERGER WEG 3
TUEBINGEN
fax: 49 7071 45943

But you probably have to find a source somewhat nearer located :-).

Hope it helps

GH

--
 ____________________________________________________________________________
  Gottfried Huengsberg, Muenchen (Germany)                  gh@wurstl.muc.de