Abstract:This application note highlights the advantages of the Teridian 73S8024RN smart-card interface compared with the NXP® Semiconductors TDA8024T. The Teridian 73S8024RN can easily replace a TDA8024T in most the existing applications. After considering the topics discussed in this document, the 73S8024RN in a 28-pin SO functions similarly to the TDA8024T and is a direct drop-in replacement for that NXP part. This discussion will help ensure the successful replacement. The article will also explain some technical differences that can marginally affect the behavior of the application with the 71S8024RN.
The 73S8024RN is also packaged in a 32-pin QFN (5mm x 5mm) and 20-pin QFN (4mm x 4mm). In these packages the IC significantly reduces the physical area required in space-limited PCB applications. Note that the pin numbers mentioned in this document refer to the 29-pin SO package.
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