Additional Pictures 


Close-up view of the TMC0601 single-chip calculator circuit used with the TI-2550.
PMOS Technology, 28-pin DIP 4-bit serial Register Processor, 384*11 Bits Instruction ROM, 3*13*4 Bits Data SAM.

Die Photo of the TMS0600/TMC0601 courtesy of Sean Riddle.

If you have additions to the above article please email:

Joerg Woerner, November 25, 2021. No reprints without written permission.