DATAMATH CALCULATOR MUSEUM
Texas Instruments LETTERlogic
|Date of introduction:||1980||Display technology:||Vacuum 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 (PCBs) of the three versions are almost identical and share the TMC0273 microcontroller and a TMC0355 Voice Synthesis Memory (VSM), known as "128kBit Speech-ROM" of the Speak & Spell family. The different languaged of the three games are coded in these ROMs:
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.