DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
Texas Instruments LOGpit
| Date of introduction: | 1981 | Display technology: | LCD |
| New price: | Display size: | 8 | |
| Size: | 5.3" x 2.9" x 0.90" | ||
| Weight: | 6.0 ounces | Serial No: | |
| Batteries: | 2*AA | Date of manufacture: | wk 45 year 1981 |
| AC-Adapter: | Origin of manufacture: | Italy | |
| Precision: | Integrated circuits: | CD4564 | |
| Memories: | |||
| Program steps: | Courtesy of: | Gerhard Wenzel | |
| Download manual: | 
(DE: 3.2 MByte) |
The
LOGpit sold in Germany was thought as a calculator for cars. With an
integrated timer/clock you could measure your travelling speed, calculate your
remaining time to the destination and some other car related calculations.
The
housing of the LOGpit was similar to the TI-30 LCD
with it's huge battery compartment but added a small buzzer for the timer-alarm.
Dismantling the LOGpit reveals a small surprise, the electronics of the TI-30
LCD received a small crystal (X-TAL) as a reliable timebase for the integrated
timer/clock.
If
you are interested in the technology behind the calculator chips developed by
Texas Instruments: The CD4564 is one TP0456
designs replacing a faulty TP0455 application. In the meantime we discovered a
LOGpit with the original CD4514B chip, please notice the preliminary printing of
the chip housing.
Later LOGpit models got a
slightly changed coloration.
The model was available in both Englisch and French lettering named TI-2001 GTI.
Compare this car-computer with an airplane-computer sold by Cessna and the TI-2000 Time Manager.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.