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Texas Instruments La Dictée Magique (Type 2)

Date of introduction:  1986 Display technology:  Fluorescent
New price:   Display size:  9 alphanumeric
Size:  10.0" x 7.0" x  1.3" 
 254 x 177 x 34 mm3
   
Weight:  16.7 ounces, 474 grams Serial No:  
Batteries:  4*C cells Date of manufacture:  wk 42 year 1987
AC-Adapter:   Origin of manufacture:  Italy
Precision:   Integrated circuits:  CD2702, CD2801, CD2352
Memories:      
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (FR: 1.771 kB)

This La Dictée Magique model introduced in 1986 got a slightly changed keyboard design. View the previous design here.

LaDictee_RCI4287_Int.jpg (410119 Byte)The pictured La Dictée Magique was manufactured in 1987 and represents the last design iteration of the Speak & Spell family. The printed circuit board (PCB) itself is much smaller than the original Speak & Spell design but sports an almost identical design.

LaDictee_RCI4287_PCB.jpg (335860 Byte)The main components on the PCB are:

Microcontoller: The microcontroller is derived from the TMS1000 series and adopted to control both the keyboard, the display and to feed the speech synthesizer. This La Dictée Magique uses a CD2702 which interprets as TMC0270, ROM-Code 2.

Speech Synthesizer: The Speak & Spell series uses with the TMC 0280 the first one-chip LPC speech synthesizer. Later refinements to the Speak & Spell chips resulted in the TMS 5100, 5200 and 5220 Voice Synthesis Processors for commercial products. This La Dictée Magique uses a CD2801 which interprets as TMC0280, Version 1.

Speech ROM: Speech data is stored in a 128k ROM chip with the designation TMC 0350. This La Dictée Magique uses a CD2352 which is actually a double VSM (Voice Speech Memory) with 256k capacity.

In addition to the ten different English speaking Speak & Spell Cartridge Libraries five French speaking "Module Magique" were introduced. A comprehensive overview including the wordlists could be found here

The La Dictée Magique is featured in the Texas Instruments France SA leaflet Magiques et Intelligents dated 1991.


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

© Joerg Woerner, October 28, 2008. No reprints without written permission.