Xref: utzoo rec.ham-radio:20885 sci.electronics:12278
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From: mleech@bcarh342.bnr.ca (Marcus Leech)
Newsgroups: rec.ham-radio,sci.electronics
Subject: TMS3450
Keywords: clock-chips silicon texas-instruments brain-death
Message-ID: <1990Jun7.141107.6790@bnrgate.bnr.ca>
Date: 7 Jun 90 14:11:07 GMT
Sender: news@bnrgate.bnr.ca (USENET News Administration)
Organization: Bell-Northern Research, Ltd. Ottawa Ontario CANADA
Lines: 20


A couple of years ago I bought a Radio-Shack 24-hour digital clock
  with a *BIG* display.
Radio-Shack stopped selling this beast, but a local discount
  store is offering a remarkably similar clock that only
  provides 12-hour display.  It turns out that they both use
  the same display, and electronics--namely the TMS3450
  clock chip.
I tried to get information out of Texas Instruments on this chip,
  but they steadfastly refused to acknowledge its existence.
  The chips have the TI logo on them, and they use the TMS
  numbering scheme characteristic of TI.
Can anybody (TI, are you listening??) give me any information on this
  chip--I would like to modify the twelve-hour version of the clock
  to twenty-four.  I almost have it, but I need some info about the
  chip.
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Marcus Leech, 4Y11             Bell-Northern Research  |opinions expressed
mleech@bnr.ca                  P.O. Box 3511, Stn. C   |are my own, and not
VE3MDL@VE3JF.ON.CAN.NA         Ottawa, ON, CANADA      |necessarily BNRs