Microchip Technology's HCS200-I/P Keeloq® Code Hopping Encoder

The HCS200-I/P from Microchip Technology is a powerful code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. Utilizing the renowned KEELOQ® cryptographic technology, this integrated circuit (IC) provides robust security through a unique encryption method that prevents code capturing and resending by unauthorized devices, a technique commonly known as a replay attack.

This encoder IC is perfect for automotive RKE systems, garage door openers, and gate control applications. It is designed to work in conjunction with a compatible RF transmitter and a KEELOQ® decoder (such as the HCS500) to create a secure communication link between the remote control and the receiving system.

The HCS200-I/P operates on a wide voltage range of 2.0V to 6.6V, making it versatile for various battery-powered applications. It comes in a PDIP-8 package, ensuring ease of integration into your design with a straightforward through-hole mounting process.

Key features of the HCS200-I/P include:

• KEELOQ® Code Hopping Technology: Each transmission is encrypted with a unique code, which significantly increases security by making it virtually impossible for unauthorized parties to duplicate the signal.
• Programmable 28-bit Serial Number: Allows for a vast number of device addresses, ensuring that your application can maintain a unique identity.
• Programmable 64-bit Encryption Key: Provides a high level of security through a customizable key, ensuring that only authorized devices can communicate with the system.
• Low Power Consumption: Ideal for battery-operated devices, the HCS200-I/P offers a sleep mode feature to conserve power when not in active use.
• Easy Integration: The PDIP-8 package is well-suited for prototyping and mass production, with a simple pin-out configuration for easy circuit design.

Whether you're developing a new RKE system or looking to enhance the security of an existing application, the HCS200-I/P offers a reliable and secure solution. With Microchip Technology's reputation for quality and performance, you can trust this encoder to be a cornerstone in your security-focused designs.

For detailed specifications and application notes, or to order samples, be sure to visit Microchip Technology's official website or contact your local authorized distributor.