ATA5721C-PLQW RFID Transceiver IC with Secure Authentication, PLQW Package

ATA5721C-PLQW Overview

The ATA5721C-PLQW is a highly integrated low-frequency transponder IC designed for automotive immobilizer systems and secure access control. This device enables reliable bidirectional communication at 125 kHz, featuring advanced security functions and low power consumption. Its integrated EEPROM memory allows flexible programming for unique identification and cryptographic keys, enhancing vehicle anti-theft protection. The transponder IC supports various coding schemes and offers robust performance in harsh automotive environments. With compact packaging and optimized power efficiency, this solution is ideal for embedded security applications. For detailed technical information and procurement, visit IC Manufacturer.

ATA5721C-PLQW Technical Specifications

ATA5721C-PLQW Key Features

• Integrated Cryptographic Engine: Provides enhanced security through challenge-response authentication, ensuring robust protection against unauthorized access.
• Low-Frequency 125 kHz Communication: Enables reliable data exchange in automotive immobilizer systems with stable operation under varying environmental conditions.
• Low Power Consumption: Optimized for minimal current draw in standby mode, extending system battery life and improving overall energy efficiency.
• Extensive EEPROM Memory: Allows flexible configuration and storage of unique identifiers and security keys, enabling customizable and scalable security solutions.
• Wide Operating Temperature Range: Ensures consistent performance in harsh automotive environments, from extreme cold to elevated temperatures.
• Compact PLQW Package: Facilitates easy integration into space-constrained applications while maintaining thermal efficiency and mechanical reliability.
• Support for Multiple Coding Schemes: Compatible with Manchester and bi-phase coding, providing flexible communication options for different system architectures.

ATA5721C-PLQW Advantages vs Typical Alternatives

This transponder IC offers superior security integration with its embedded cryptographic functions, enhancing protection beyond typical passive devices. Its low-frequency operation and low power consumption provide reliable communication with reduced energy demands, unlike many alternatives. The large EEPROM memory supports complex security protocols, while the robust temperature tolerance ensures durability in automotive applications. These advantages combine to deliver a highly dependable and secure solution for immobilizer and access control systems.

Typical Applications

• Automotive Immobilizer Systems: Enables secure vehicle access by authenticating keys and preventing unauthorized engine start, critical for anti-theft functions in modern cars.
• Access Control Systems: Provides secure entry management for buildings or restricted areas requiring reliable identification and authentication.
• Industrial Equipment Security: Integrates into machinery to restrict operation to authorized personnel, reducing theft and misuse risks.
• Fleet Management Solutions: Supports secure identification of vehicles and drivers, enhancing operational control and asset protection.

ATA5721C-PLQW Brand Info

Manufactured by a leading semiconductor supplier, this IC is part of a trusted product family focused on automotive security and contactless identification. Renowned for combining advanced security features with automotive-grade reliability, the brand ensures rigorous quality standards and comprehensive technical support. The device is designed for seamless integration in immobilizer and access control systems, backed by a strong ecosystem of development tools and application notes to accelerate implementation.

FAQ

What type of communication does the ATA5721C-PLQW support?

The device supports low-frequency communication at 125 kHz using Manchester and bi-phase coding schemes. This enables stable and secure data exchange in automotive immobilizer and access control applications.

How does the integrated cryptographic engine enhance security?

The built-in cryptographic engine facilitates challenge-response authentication, preventing unauthorized access by ensuring only valid transponders can communicate with the immobilizer system. This significantly reduces the risk of cloning or hacking attempts.

What are the power consumption characteristics of this IC?

The transponder IC is optimized for low power consumption, with a typical current draw of around 50 ??A in standby mode. This efficiency helps extend battery life in key fobs and embedded automotive systems.

Is the EEPROM memory configurable for custom applications?

Yes, the 1024-bit EEPROM allows flexible programming of unique identifiers, cryptographic keys, and other data, enabling customization to meet specific security requirements within automotive or access control systems.

What packaging options are available for this product?

This IC is supplied in a 32-pin PLQW (QFN) package, which offers a compact footprint and good thermal performance, facilitating easy integration into space-constrained designs typical in automotive and industrial environments.