Texas Instruments TI-30-II

Date of introduction:  1982 Display technology:  LCD
New price:  
 $18 (October 1981)
Display size:  8 (5 + 2)
Size:  5.3" x 2.9" x 0.35"
 134 x 74 x 9 mm3
Weight:  2.9 ounces, 82 grams Serial No:  9857529
Batteries:  2*LR44 Date of manufacture:  wk 48 year 1983
AC-Adapter:   Origin of manufacture:  USA
Precision:  11 Integrated circuits:  TP0455/CD4515 or TP0465/CD4565N or CD4565N2
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (US: 6.4M Bytes)

This TI-30-II is much more common than the first edition introduced already in 1981. Please compare them here.

TI-30-II_PCB.jpg (71611 Byte)Using the electronics of the European TI-30 LCD and the two shell housing of the TI-35 created this TI-30-II. We noticed already with the TI-30 LCD a change from the original TP0320 single-chip calculator circuit to the more advanced CD4565 around 1982. Same story happened with this TI-30-II featuring the enhanced C-MOS calculator chips CD4565.

Two years later this model was replaced with the TI-30 III

If you are interested in the calculating accuracy of scientific calculators don't miss the Calculator forensics.

In the same year a desktop variant of the TI-30 appeared, don't miss the rare TI-30 D

Compare the TI-30-II with the Taiwan-built TI-21 calculator.

In 1984 the era of the slimline calculators was over and Texas Instruments introduced a family of four calculators manufactured in Taiwan:

TI-35 II

The TI-30-II is featured in the Texas Instruments Incorporated leaflet CL-199M dated 1983.


horizontal rule

If you have additions to the above article please email:

Joerg Woerner, December 5, 2001. No reprints without written permission.