Texas Instruments IS-8200 Digital Planner

Date of introduction:  1993 Display technology:  LCD dot matrix
New price:   Display size:  6 lines by 24 char
Size:  6.5" x 3.4" x 0.2"
 164 x 87 x 5 mm3
Weight:  4.2 ounces, 120 grams Serial No:  0185623
Batteries:  2*CR2016 Date of manufacture:  mth 07 year 1993
AC-Adapter:   Origin of manufacture:  Italy
Precision:  10 Integrated circuits:  
Memories:  32kB RAM    
Program steps:   Courtesy of:  Joerg Woerner
    Download manual:   (DE: 6.6 MByte)

The IS-8200 Digital Planner was introduced in Europe together with the IS-8400 in 1993 and seems to be identical with the PS-9450 TimeRunner resp. PS-9500 sold in the United States. Both the IS-8200 and PS-9450 feature a smaller memory with 32k Bytes capacity compared to 64k Byte of the IS-8400 and PS-9500.

The featured IS-8200 is a loan from Texas Instruments, Dallas and was probably used for some temperature tests. Please notice the hand-written mark "+85", not the usual operating temperature of the Digital Planner. 


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If you have additions to the above article please email:

Joerg Woerner, October 23, 2009. No reprints without written permission.