Old TI analog sound chip; info?

From: Tothwolf <tothwolf_at_concentric.net>
Date: Thu Dec 19 02:40:02 2002

On Thu, 19 Dec 2002, Philip Pemberton wrote:
> Tony Duell wrote:
> > Somewhere I have an SPO256 (and external ROM) which can speak the
> > words for a digital clock (numbers, 'hundred hours', 'wake up' (or
> > some other 'alarm' message) and so on)
> I've got four SPO256A-AL2s - all working. I'll be damned if I can find
> those pesky 3.12MHz crystals though. Best offer I had was 10 each,
> custom cut.

You might want to check out [http://www.speechchips.com/]. They have the
3.12MHz crystals for $3.00US/ea.

You might also be able to get away with substituting a 3.579545MHz
"Colorburst" crystal. Colorburst crystals are extremely common, and very
inexpensive. Radio Shack used to carry them as 272-1310, but they've been
discontinued like most of the other useful parts. It appears that many
folks used those crystals instead of 3.12MHz since they were commonly

> > The CTS256 was actually a pre-programmed PIC7000 (or TMS7000)
> > microcontroller, BTW. Or at least the pinout matched perfectly.
> I'm still looking for a CTS256, just in case anyone here has a spare.
> I've always wanted to make an RS232 TTS board.

The site I mentioned above claims to have them at $10.00US/ea.

Received on Thu Dec 19 2002 - 02:40:02 GMT

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