Texas Instruments TI-1031

Date of introduction:  1981 Display technology:  LCD
New price:  $12 (October 1981) Display size:  8
Size:  4.6" x 2.6" x 0.35"
 116 x 66 x 9 mm3
Weight:  1.9 ounces, 54 grams Serial No:  
Batteries:  2*LR43  Date of manufacture:  wk 15 year 1981
AC-Adapter:   Origin of manufacture:  USA
Precision:  8 Integrated circuits:  TP0311
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

The TI-1031 is another design of the original TI-1030 calculator. You should compare it with the ET calculator and the TI-1750-III, too.

TI-1031_PCB.jpg (29664 Byte)All these calculators make use of the TP0311 first generation single-chip calculator circuit based on the TMS1000 Microcomputer family.


Find here an excerpt from the Texas Instruments Incorporated leaflet CL-199J dated 1981:


Affordable and convenient…plus pocket-portable.

A good-looking addition to your personal or business accessories in its brown vinyl wallet folder. 

Includes TI’s APD* automatic power down feature, extends battery life. 
Large, easy-to-read liquid crystal display (LCD) shows 8 digits plus overflow, decimal point, negative sign, and memory indication. 

Automatic constant, four-key memory, percent key, and square root key.

* Registered Trademark of Texas Instruments Incorporated

© Texas Instruments, 1981

The TI-1031 is featured in the Texas Instruments Incorporated leaflet CL-199M dated 1983.


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