DATAMATH CALCULATOR MUSEUM
Texas Instruments LETTERlogic
|Date of introduction:||1980||Display technology:||Fluorescent|
|New price:||Display size:||8 alphanumeric|
|Size:|| 6.2" x 3.4" x 1.1"
157 x 86 x 29 mm3
|Weight:||5.7 ounces, 163 grams||Serial No:|
|Batteries:||9V||Date of manufacture:||year 1980|
|AC-Adapter:||Origin of manufacture:||Italy|
|Precision:||Integrated circuits:||TMC0273, TMC0355 (CD2603)|
|Program steps:||Courtesy of:||Joerg Woerner|
LETTERlogic sold in the France is almost identical with its German and British
LETTERlogic and LETTERlogic
but sports a different imprint on the keyplate.
The printed circuit boards (PCB's) of the three versions are almost identical and share the TMC0273 microcontroller and the TMC0355 128kBit ROM with the Speech data. The different language of the three games is coded in these ROM's:
Mr. Challenger, LETTERlogic (UK)
• CD2603: LETTERlogic (France)
• CD2604: LETTERlogic (Germany)
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, August 1, 2012. No reprints without written permission.