Microchip Technology MCS3142 Dual KeeLoq Encoder

Microchip Technology MCS3142 Dual KeeLoq® Encoder provides a complete solution for secure Remote Keyless Entry (RKE) and Secure Remote Control systems. The MCS3142 Encoder features Ultimate KeeLoq Protocol, a timer-based solution offering enhancements to the Classic KeeLoq Protocol structure such as AES-128 block cipher, programmable 32-bit serial number, programmable 128-bit encryption key, and KeeLoq Secure Learn Mode (128-bit Seed). Ultimate KeeLoq Technology incorporates a timer-driven message counter which continuously increments, independent of events, to provide a better, more secure solution. The time-keeping functionality provides additional protection against capture and replay attack techniques. The addition of Ultimate KeeLoq Protocol offers designers the ability to develop highly secure authentication applications for a variety of markets such as security systems (keypads, remote sensors, and access control), Remote Keyless Entry (automotive), and authentication (identity and property) applications.