DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-55-II Prototype
Date of introduction: | 1981 | Display technology: | LCD |
New price: | $40.00 | Display size: | 8 + 2 |
Size: | 5.8" x 3.1" x 0.90" 147 x 79 x 23 mm3 |
||
Weight: | 3.7 ounces, 106 grams | Serial No: | 210035 |
Batteries: | 2*LR44 | Date of manufacture: | wk 37 year 1981 |
AC-Adapter: | Origin of manufacture: | USA | |
Precision: | 11 | Integrated circuits: | TP0456/CD4555, CD4556 |
Memories: | 1-8 | ||
Program steps: | 56-0 | Courtesy of: | Stefan Klaes |
Download manual: | (US-QR: 1.5M Bytes) |
This early prototype of the TI-55-II sports two differences to the later series model:
• The display frame is much darker. • The two Integrated Circuits (ICs) look not very professional. |
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 10, 2004. No reprints without written permission.