DATAMATH CALCULATOR MUSEUM
Texas Instruments Touch & Tell (United Kingdom)
|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:|
|Batteries:||2*D cells||Date of manufacture:||wk 18 year 1987|
|AC-Adapter:||Origin of manufacture:||Italy|
|Precision:||Integrated circuits:||CD8012, CD2802, CD62170|
|Program steps:||Courtesy of:||Joerg Woerner|
Nothing else than a Touch & Tell with British voices stored in the Speech-ROM.
this Touch & Tell manufactured in May 1987 by Texas Instruments in their
Rieti, Italy facility for the UK market reveals a small surprise: It includes indeed a
different Speech-ROM on the main printed
circuit board (PCB) compared with the original Touch & Tell.
The design is 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/CD62170: VSM (Voice Synthesis Memory) with 128k Bits capacity
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© Joerg Woerner, December 23, 2007. No reprints without written permission.