Texas Instruments Vocaid

Date of introduction:  1982 Display technology:  n.a.
New price:   Display size:  
Size:  10.0" x 14.3" x  1.6" 
 254 x 362 x 41 mm3
Weight:  36.5 ounces, 1034 grams Serial No:  1858
Batteries:  2*D cells Date of manufacture:  wk 31 year 1984
AC-Adapter:  AC9460 Origin of manufacture:  USA
Precision:   Integrated circuits:  CD8012, CD2802, CD2357
Program steps:   Courtesy of:  Joerg Woerner
    Download manuals:   (US: 6.0 MByte)
  (US: 5.4 MByte)

Vocaid_PCB.jpg (111341 Byte)A small change in the Speech-ROM but a huge difference in the application. This medical aid for the voice handicapped persons is based on a children game, the Touch & Tell.

Dismantling this Vocaid manufactured in July 1984 by Texas Instruments in the United States reveals a design centered around three Integrated Circuits:

CD8012: 4-bit TMS1100 microcontroller with 2k Bytes ROM and 128*4 Bits RAM
TMC0280/CD2802: TMS5110A VSP (Voice Synthesis Processor)
TMC0350/CD2357: VSM (Voice Synthesis Memory) with 128k Bits capacity

The handicapped person places one of the different sheets on the keyboard and with a short finger tip the Vocaid asks for help, shouts for the police or speaks other useful phrases.

Don't miss other talking products for vision impaired - the Calcu-Talk and the Orbit TI-34

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If you have additions to the above article please email:

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