Texas Instruments SS-1000 16K RAM EXPANSION Cartridge

Date of introduction:  1983 Display technology:  
New price:  $149.95 (MSRP 1983) Display size:  
Size:  2.1" x 2.0" x 0.55"
 53 x 52 x 14 mm3
Weight:  1.1 ounces, 30 grams Serial No:  0023164
Batteries:  n.a. Date of manufacture:  wk 28 year 1983
AC-Adapter:   Origin of manufacture:  USA (ATA)
Precision:   Integrated circuits:  2*HM6264LP
Program steps:   Courtesy of:  Joerg Woerner

The SS-1000 16K RAM EXPANSION Cartridge was developed by Texas Instruments for its CC-40 Compact Computer System and increases its power and versatility by increasing the memory capacity of the computer. The additional memory provided by the 16K RAM cartridge can be used to expand the total amount of memory available for BASIC programs and data storage, or to increase the amount of memory available for machine language programs.

When using the 16K RAM cartridge to expand the memory of the Compact Computer 40 with a standard resident RAM of 6k Bytes, the total amount of memory available for BASIC programs is 18k Bytes.

Dismantling this 16K RAM EXPANSION Cartridge manufactured in July 1983 by Texas Instruments in their Abilene, Texas facility, reveals a small printed circuit board (PCB) with two HN6264L RAMs (Random Access Memories) manufactured by Hitachi, Japan.

The HM6264LP uses a CMOS process resulting in a very low power standby consumption of 0.01 mW and features a capacity of 8k Bytes with an access time of just 120 ns.

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Joerg Woerner, October 19, 2019. No reprints without written permission.