DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-30 STAT
Date of introduction: | 1992 | Display technology: | LCD |
New price: | Display size: | 8 (5 + 2) | |
Size: | 5.4" x 2.8" x 0.45" | ||
Weight: | 2.4 ounces | Serial No: | |
Batteries: | 2*LR44 | Date of manufacture: | wk 27 year 1992 |
AC-Adapter: | Origin of manufacture: | Italy | |
Precision: | 11 | Integrated circuits: | TP0456/CD4557A |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner | |
Download manual: | (US: 4.9M Bytes) |
Just a minor variation of the 1989-model of the TI-30 STAT. Please focus on the texture of the housing if you compare the designs.
In 10 years of production we recognized in the meantime seven different designs of the TI-30 STAT and - just to compare - four designs of the related TI-30:
Dismantling
this late TI-30 STAT reveals an interesting internal construction with a
flexible printed circuit board (Flex-PCB) instead of the common rigid PCB's of
other calculators manufactured in the 90s. We
know this type of design from e.g. the TI-30 III
manufactured in 1985.
The
single-chip calculator circuit located in this late TI-30 STAT looks uncommon
but sports a well known designator: CD4557A - a member of the
TP0456
architecture, based on the famous TMS1000
Microcomputer family.
Don't miss a BA-35 Business Analyst
manufactured in 1996 sporting a CD4571B, probably the latest revision of the
TP0456
chip.
In 1993 this successful
calculator was discontinued. Texas Instruments introduced a complete new family
in a smoother housing:
•
TI-30X New display with 10 + 2 digits, 3 memories
•
TI-30X SOLAR With Anylite solar-cells
•
TI-35X Adds 2-dim statistics and hex-calculations
•
TI-36X SOLAR With Anylite solar-cells
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, October 8, 2008. No reprints without written permission.