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Texas Instruments Little Maestro

Date of introduction:  1986 Display technology:  
New price:   Display size:  n.a.
Size:  9.2" x 11.2" x 1.3"     
Weight:  17 ounces Serial No:  247A
Batteries:  4*AA cells Date of manufacture:  wk 51 year 1986
AC-Adapter:   Origin of manufacture:  USA
Precision:   Integrated circuits:  TMP50C40/CM54128
Memories:      
Program steps:   Courtesy of:  Joerg Woerner
    Download manuals: (US: 3.5M Bytes)
(US: 5.1M Bytes)

This funny synthesizer based product from Texas Instruments generates a lot of different sounds and stores them into internal memory. Compared with earlier products of the Speak & line this one uses a quite simple technology.

This educational toy was rated by Texas Instruments for children aged between 3 and 5 years.

Dismantling this Little Maestro manufactured in December 1986 by Texas Instruments in the United States reveals a compact design centered around just two Integrated Circuits:

TMP50C40/CM54128: TSP50C50 VSP (Voice Synthesis Processor) with 8-bit microcontroller and 8k Bytes Mask ROM for both program and voice and 32 Bytes RAM
CF60034: Not yet discovered, probably a Port-Expander for the VSP

A similar product was introduced with the Speak & Music game.


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If you have additions to the above article please email: joerg@datamath.org.

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