DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Additional Pictures
| Close-up view
of the TMC0270/CD2702 single-chip calculator circuit used with the La Dictée Magique. PMOS Technology, 40-pin SPDIP 4-bit Microcontroller, 2,048*9 Bits Instruction ROM, 144*4 Bits Data RAM.  |
Die Photo of the
TMC0270/2702
courtesy of
Sean Riddle. |
Die Photo (after acid) of the
TMC0270/2702
courtesy of
Sean Riddle. |
| Close-up view
of the TMC0270/CD2704 single-chip calculator circuit used with the Speak &
Math. PMOS Technology, 40-pin SPDIP 4-bit Microcontroller, 2,048*9 Bits Instruction ROM, 144*4 Bits Data RAM.  |
Die Photo of the
TMC0270/2704
courtesy of
Sean Riddle. |
Die Photo (after acid) of the
TMC0270/2704
courtesy of
Sean Riddle. |
If you have additions to the above article please email: joerg@datamath.org.
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