Texas Instruments SS-3007 ADVANCED ELECTRICAL ENGINEERING Solid State Software Cartridge

Date of introduction:  1983 Display technology:  
New price:  $59.95 (MSRP 1983) Display size:  
Size:  2.1" x 2.0" x 0.55"
 53 x 52 x 14 mm3
Weight:  1.0 ounces, 28 grams Serial No:  0023886
Batteries:  n.a. Date of manufacture:  wk 28 Year 1983
AC-Adapter:   Origin of manufacture:  USA (ATA)
Precision:   Integrated circuits:  HN61256P
Program steps:   Courtesy of:  Joerg Woerner

The SS-3007 ADVANCED ELECTRICAL ENGINEERING Solid State Software Cartridge (SSSC) was developed by Texas Instruments for its CC-40 Compact Computer System and contains 10 easy-to-use programs chosen to serve a broad range of advanced electrical engineering applications:

Active Filters
Roots of a Polynomial
Discrete Fourier Transform
Network Analysis
Passive Lowpass Filters
Phase-locked Loops
Series/Parallel Conversion
Signal Detection
S ↔ Y,Z,H,G Parameter Conversions

Dismantling a Solid State Software Cartridge manufactured in July 1983 by Texas Instruments in their Abilene, Texas facility, reveals a small printed circuit board (PCB) with a HN61256P ROM (Read-Only Memory) manufactured by Hitachi, Japan.

The HN61256P uses a CMOS process resulting in a very low power consumption of 7.5 mW and features a capacity of 32k Bytes with an access time of 3.5 us.

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If you have additions to the above article please email:

Joerg Woerner, October 26, 2019. No reprints without written permission.