Article View: sci.electronics
Article #6377Re: Why are 8 bit TTL binary counters so hard to find???
From: Jon Sreekanth
Date: Sat, 15 Aug 1992 16:34
Date: Sat, 15 Aug 1992 16:34
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1883 bytes
In article <1992Aug14.033406.19291@julian.uwo.ca> wlsmith@valve.heart.rri.uwo.ca (Wayne Smith) writes: In article <JON_SREE.92Aug13214342@world.std.com> jon_sree@world.std.com (Jon Sreekanth) writes: >Why is it important to get an 8 bit counter in one package, as >opposed to tying two 4-bit counters together ? I already have a prototype made of 4 independant 16 bit counters, and working with 4 bit counters (74F161) are a pain. What I really would like is 4 addressable independant 16 bit counters running off a single clock (no load register needed) with a common ... I guess it's one of those things that falls through the cracks. It's too big and too specialized for a 74xx series part. A PLD may be expensive or slow or consume too much power. A low end gate array might be over-kill. Oh, well. In a production setting, even a handful of 74xx series glue chips can be fairly closely packed, using surface mount parts and using both sides of the board. Directly bonding the die onto the PC board is also becoming more popular. / Jon Sreekanth Assabet Valley Microsystems, Inc. | Fax and PC products 5 Walden St #3, Cambridge, MA 02140 | (617) 876-8019 jon_sree@world.std.com |
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!sparky!uunet!decwrl!world!jon_sree From: jon_sree@world.std.com (Jon Sreekanth) Subject: Re: Why are 8 bit TTL binary counters so hard to find??? In-Reply-To: wlsmith@valve.heart.rri.uwo.ca's message of Fri, 14 Aug 1992 03:34:06 GMT Message-ID: <JON_SREE.92Aug15113446@world.std.com> Sender: jon_sree@world.std.com (Jon Sreekanth) Organization: The World References: <1992Aug13.212738.26715@julian.uwo.ca> <JON_SREE.92Aug13214342@world.std.com> <1992Aug14.033406.19291@julian.uwo.ca> Distribution: na Date: Sat, 15 Aug 1992 16:34:46 GMT Lines: 28