EE Product News

Transponder/Encoder Promotes Security

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Melding 3-axis passive entry transponder and encoder circuitry onto a single 14-pin PDIP or SOIC package, the HCS473 is said to eliminate key orientation issues in passive entry systems, such as automotive and other secure challenge-and-response systems. Employing KEELOQ code-hopping technology, the IC employs three transponder inputs to achieve omni-directional signal detection and to provide high security. Th e device provides 64-bit encryption, bi-directional communication, and reduced access time. Additional features include standby current of

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