Patent ID: 8049573
Filing Date: 2011-11-01
Classification: H01L,H03K,H03M,H04B,H04L

Abstract:
1. A bidirectional integrated circuit isolator for providing bidirectional data transfer of digital data signals across a voltage isolation barrier, comprising: an integrated circuit package having a first plurality of input/output data pins on one side of the isolation barrier and a second and corresponding plurality of input/output data pins on the other side of the isolation boundary; first circuitry associated with the first plurality of input/output data pins and second circuitry associated with the second plurality of input/output data pins; a communications interface for providing across the voltage isolation barrier a first communications channel for communicating data from the first circuitry to the second circuitry and a second communications channel separate from the first communications channel for communicating data from the second circuitry to the first circuitry; the first circuitry operable to communicate information from input digital data overlapping each other in time and received on two or more of the associated first plurality of input/output data pins across the first communications channel and the second circuitry operable to receive the communicated data from the first circuitry and reconstruct the communicated data for output on the respective ones of the second plurality of input/output data pins corresponding to the two or more of the associated first plurality of input/output data pins from which the communicated data was communicated; the second circuitry operable to communicate information from input digital data overlapping each other in time and received on two or more of the associated second plurality of input/output data pins across the second communications channel and the first circuitry operable to receive the communicated data from the second circuitry and reconstruct the communicated data for output on the respective ones of the first plurality of input/output data pins corresponding to the two or more of the associated first plurality of input/output data pins from which the communicated data was communicated; and switching circuitry associated with each of said first and second circuitry for selecting which of the data pins associated with either of the first or second plurality of input/output data pins are input data or output data.