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Texas Instruments TI-30S

Date of introduction:  1996 Display technology:  LCD
New price:   Display size:  8 (5 + 2)
Size:  4.6" x 2.5" x 0.3"    
Weight:  1.8 ounces Serial No:  
Batteries:  n.a. Date of manufacture:  mth 10 year 1996
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  11 Integrated circuits:  Toshiba T6974S
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (DE, GB: 2.0 MByte)

Starting from the very first TI-30 with a red LED-display in the year 1976 all TI-30 variants used an 8-digit display. This is for most calculations convenient but in scientific notation you'll get only 5 digits of mantissa. 

The TI-30X introduced in the year 1993 a major improvement, the display capacity was eXpanded to a full 10 digit mantissa with two independent digits for the exponent. The complete X-family covered 4 models:

bulletTI-30X  New display with 10 + 2 digits, 3 memories
bulletTI-30X SOLAR With Anylite solar-cells
bulletTI-35X  Adds 2-dim statistics and hex-calculations
bulletTI-36X SOLAR  With Anylite solar-cells

Nevertheless TI continued the spirit of the TI-30 with the 5 digit mantissa and brought us this TI-30S and its sibblings TI-25 SOLAR, TI-25 STAT and TI-25X Solar.

TI-30S_N1096_PCB.jpg (122147 Byte)Dismantling this TI-30S manufactured in October 1996 by Nam Tai Electronics, Inc. reveals the Toshiba T6974S single-chip calculator circuit introduced already in 1984 with the TI-30 SLR.



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If you have additions to the above article please email: joerg@datamath.org.

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