DATAMATH CALCULATOR MUSEUM
early TI-57 II manufactured in
Taiwan hides the Slave microcomputer
and makes use of a rigid PCB.
|The TP0456 microcomputer
based Master/Slave architecture found in the
TI-57 II calculator. The CD4572 forms the Master, the smaller CD4555 the Slave.
|The TI-53 calculator
makes use of the original TP0323
introduced already in 1978.
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© Joerg Woerner, June 13, 2003. No reprints without written permission.