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Hanimex SLC 891 a.k.a Electronic Memo Note 30

Date of introduction:  1980 Display technology:  LCD (yellow)
New price:   Display size:  8
Size:  4.8" x 2.6" x 0.35"
 122 x 66 x 9 mm3
   
Weight:  2.3 ounces, 66 grams Serial No:  3423592
Batteries:  3*LR44 Date of manufacture:  year 1980
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8  Integrated circuits:  Toshiba T3690, T3691
Memories:  30    
Program steps:   Courtesy of:  Joerg Woerner

Toshiba introduced with the LC-836MN the first portable electronic Databank on the market. Competitor Canon followed soon and designed with the LC-MEMO a similar device in a much smaller housing. This Hanimex SLC 891, also known as Electronic Memo Note 30 or Technico MC-3001 combined the electronics of the original Toshiba design with the sleek housing from Canon.

Dismantling this Hanimex SLC 891 manufactured in Taiwan in 1980 reveals indeed an early chipset manufactured by Toshiba, Japan.The T3690 microcontroller scans the keyboard, drives the display and does the calculating functions. The T3691 stores a maximum of 30 information items in units of 6 alphabetical characters and 8 numerals each. If you add the bits together you end with a total amount of 2048 bits or 256 bytes.

The alphanumeric display uses an unusual 8-segment layout with one additional segment to the standard calculator layout. The display on the right reads "GERMAN". It is obvious that the additional segment enhances readability of the letter "M" compared to the LC-836MN. 


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

Joerg Woerner, June 17, 2017. No reprints without written permission.