Additional Pictures 


Close-up view of the TMC0262 single-chip calculator circuit used with the TI-5025.
PMOS Technology, 40-pin DIP 4-bit Microcontroller, 2,048*9 Bits Instruction ROM, 144*4 Bits Data RAM.

Die Photo of the TMC0260/0262 courtesy of Sean Riddle.

If you have additions to the above article please email:

Joerg Woerner, April 30, 2021. No reprints without written permission.