Abstract:A peripheral interface unit in a microcomputer control system fabricated by a standard n-channel silicon-gate enhancement/depletion MOS process is described. The unit, designed so as to meet customized requirements, has the capability of accepting analog and digital input, generating digital output, and multiplying. The analog input capability is made possible by an on-chip A/D converter using a constant slope approach. The use of a current source, a level shifter, and a threshold detector realizes a standard … Show more
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