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Additional Pictures 

 

Close-up view of the 3810 (SL30745) ROM from the PPS 25 Programmable Processor System used with the Cybernetic Systems Mathiputer (Model CPD-35) manufactured in October 1975.
PMOS Technology, 16-pin Ceramic Package. 256*12 Bits Instruction ROM.




Package of the 3810 (SL30745) with its lid removed, exposing the wire bonding. Package Pin 1 in upper-left quadrant. Image resolution: 4,800 DPI (190 pixel/mm). Photo courtesy of Sean Riddle

Die of the 3810 (SL30745). Bond pad 1 in upper-left quadrant. Image resolution: 19,200 DPI (760 pixel/mm. Photo courtesy of Sean Riddle


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© Joerg Woerner, May 8, 2026. No reprints without written permission.