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Texas Instruments TI-54

Date of introduction:  1981 Display technology:  LCD
New price:  $40 (October 1981)  Display size:  8 + 2
Size:  5.8" x 3.1" x 0.90"
 147 x 79 x 23 mm3
   
Weight:  3.7 ounces, 106 grams Serial No:  
Batteries:  2*LR44 Date of manufacture:  wk 04 year 1982
AC-Adapter:   Origin of manufacture:  Italy
Precision:  11 Integrated circuits:  CD4555, CD4551
Memories:  8    
Program steps:   Courtesy of:  Daniel Weissmann
    Download manual: (US: 2.7 MBytes)

The TI-54 was in 1981 the only calculator dealing with complex numbers. Everything else was known from it's close relative TI-55-II. The calculator was available till the year 1983.

TI-54_PCB.jpg (47779 Byte)The TI-54 makes use of the two chip Master/Slave architecture introduced with the TI-55 II. Find more information about the TP0456 calculator chips here.

 



The TI-54 is featured in the Texas Instruments Incorporated leaflet CL-199M dated 1983.

 

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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.