Texas Instruments PS-2100

Date of introduction:  1992 Display technology:  LCD 
New price:   Display size:  12 char + 12 digits 
Size:  3.4" x 2.1" x 0.2"
 86 x 54 x 5 mm3
Weight:  0.8 ounces, 24 grams Serial No:  
Batteries:  CR2025 Date of manufacture:  mth 03 year 1993
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  10 Integrated circuits:  single-chip CPU
Memories:  2kB RAM    
Program steps:   Courtesy of:  Joerg Woerner
    Download manuals:   (US: 2.9 MByte)
  (DE: 1.0 MByte)

Nothing else than the European design of the PS-2100.

The PS-2100 Databank features 4 useful functions:

The Telephone Directory stores names and telephone numbers
The Scheduler stores appointments, meeting times and reminders
A flexible clock with 12-hour AM/PM or 24-hour time showing day of week
A calculator with 10-digits display capacity

The display of the PS-2100 consists of one line for alphanumeric characters and one line supporting only numbers. The PS-2400 packaged the same specifications in a conventional housing with a "qwerty" standard keyboard layout. The later PS-3010 combined the size of a credit card with a full keyboard.

The related IS-2100 PhoneBook combines the PS-2100 with a small booklet.

The featured PS-2100 Databank was manufactured in March 1993 by Nam Tai Electronics, Inc. in China. 

The PS-2100 traces back to the TI-2100 Pocket Info introduced in the year 1987.

A blue edition of the PS-2100 was sold with the PS-9250 Data Bank Book while the PS-CARD probably never hit the shelves of the stores.

How do you design such a small Databank ?

This is an interesting question - the Databank is only 0.2 inches (5 mm) thick!

This picture gives you the last time the working PS-2100 Databank. The next step will destroy it! PS-2100_1.jpg (24927 Byte)
Just after removal of the keyboard foil you'll notice the printed circuit board (PCB) of the PS-2100. The thin foil is one half of the switches, the PCB forms the other half. The later IS-8400 looks similar. PS-2100_2.jpg (35792 Byte)
The backside of the PCB gives you just a small blob of epoxy resin on top of the single-chip computer. It seems to be the TMP0620F known from the PS-2400. Find another chip-on-board design here. PS-2100_3.jpg (37914 Byte)



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If you have additions to the above article please email:

Joerg Woerner, January 17, 2002. No reprints without written permission.