Texas Instruments Speak & Spell Compact

Date of introduction:  1982 Display technology:   
New price:    Display size:  n.a
Size:  5.4" x 9.4" x  1.55" 
 136 x 216 x 40 mm3
Weight:  7.7 ounces, 266 grams Serial No:  
Batteries:  9V Date of manufacture:  wk 46 year 1982
AC-Adapter:   Origin of manufacture:  USA (ATA)
Precision:   Integrated circuits:  TMC0281, CD8011A, CD2354A
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 8.0M Bytes)

Think about the original Speak & Spell without a display. A slightly different version was sold in United Kingdom as Speak & Write

Don't miss the Les Maths Magiques sold in France.

Speak & Spell project was started in the year 1976 and created with the TMC0280 the first one-chip LPC speech synthesizer. Later refinements to the Speak & Spell chips resulted in the TMS5100, 5200 and 5220 Voice Synthesis Processors (VSP) for use in commercial products needing synthetic speech voice output from digitally-stored words and phrases. Speech data was stored in in up to sixteen VSM (Voice Synthesis Memory) ROM chips with a capacity of 128k Bits (TMC0350), each.

Dismantling this Speak & Spell Compact manufactured in November 1982 by Texas Instruments in Abilene, Texas reveals a design centered around three Integrated Circuits:

CD8011A: 4-bit TMS1100 microcontroller with 2k Bytes ROM and 128*4 Bits RAM
TMC0281: TMS5100A VSP (Voice Synthesis Processors)
TMC0350/CD2354A: VSM (Voice Synthesis Memory) with 128k Bits

Press the Play button and listen Speak & Spell Compact tunes.
Find more sound samples in the DOWNLOAD section.
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Speak & Spell Compact Tunes

I am, You are
Letter Stumper: Begin
Letter Stumper: Correct
Letter Stumper: Wrong
Spelling: Level A
Perfect score
Complete level

MP3 files provided by Dirk Bohlig

Interested in the music of Dirk?
Follow this link to his MP3 site.

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If you have additions to the above article please email:

Dirk Bohlig and Joerg Woerner, December 5, 2001. No reprints without written permission.