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Texas Instruments PS-3600+

Date of introduction:  1995 Display technology:  LCD 
New price:   Display size:  12 char + 2*12 digits 
Size:  3.5" x 5.6" x 0.55"
 90 x 143 x 14 mm3
   
Weight:  3.8 ounces, 108 grams Serial No:  0019601
Batteries:  2*CR2025 Date of manufacture:  mth 06 year 1995
AC-Adapter:   Origin of manufacture:  Taiwan (C)
Precision:  10 Integrated circuits:  single-chip CPU
Memories:  8kB RAM    
Program steps:   Courtesy of:  Joerg Woerner

PS-3600PLUS_BACK.jpg (384549 Byte)The PS-3600+ Databank stores like its predecessor PS-3600 about 500 names and numbers in a small package with a protection lid. 

The PS-3600+ Databank features 6 useful functions: 

The Telephone Directory stores names, addresses and telephone numbers
The Scheduler stores appointments, meeting times an dreminders
A flexible clock with 12-hour AM/PM or 24-hour time showing day of week
A calendar displays day of week and year of any schedule entry
A calculator with 10-digits display capacity and 12-digits of accuracy
World time of 30 cities in all 24 time zones supporting one home city and one world city

The display of the PS-3600+ consists of one line for alphanumeric characters and two lines supporting only numbers. The next evolution of the PS-3600+ was the PS-3660i with identical memory or the 40k Byte version PS-3960i.

PS-3600PLUS_PCB.jpg (541490 Byte)Dismantling this PS-3600+ Databank manufactured in June 1995 Compal Electronics in Taiwan reveals a big surprise! The printed circuit board (PCB) is populated with just one major component in Chip-on-Board (COB) technolgy. This Application Specific CPU integrates not only the program memory and display drivers but even the data memory with 8k Bytes capacity. 

The memory capacity was later expanded to 32k RAM, don't miss the successor PS-6100.

Production of the PS-3600+ Databank was shifted within a few months to Thailand. We know products manufactured as early as October 1995 in Compal's Thailand facility.

The design of the PS-3600+ fits neatly with the PS-2000 and PS-2400+.

 

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

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