The ATA5278-PKQI is a sophisticated, multi-functional device from Microchip Technology, specifically designed to cater to the advanced requirements of automotive Passive Entry/Passive Start (PEPS) systems. This integrated circuit is an integral part of the keyless entry ecosystem, providing seamless and secure access and ignition control in modern vehicles.

Key Features

• Multiple Frequency Bands: The ATA5278-PKQI operates on several frequency bands, including 125 kHz and 134.2 kHz, ensuring compatibility with a wide range of PEPS systems and standards.
• High Integration: This device integrates multiple functions such as LF talkback, immobilizer functions, and a RISC controller, reducing the need for additional components and simplifying system design.
• Low Power Consumption: Designed with energy efficiency in mind, the ATA5278-PKQI minimizes power consumption, which is critical for battery-operated systems like key fobs.
• Enhanced Security: It features advanced security protocols to prevent unauthorized access, ensuring that only the correct key fob can unlock and start the vehicle.
• Flexible Interface Options: The product supports various communication interfaces, including SPI and TWI, facilitating easy integration into different automotive systems.

Applications

The ATA5278-PKQI is primarily used in the automotive industry for implementing high-security, low-power PEPS systems. Its robust design and versatile features make it suitable for a variety of vehicles ranging from economy cars to luxury models.

Reliability and Quality

As with all Microchip products, the ATA5278-PKQI is manufactured to the highest quality standards, ensuring reliability and performance in the demanding automotive environment. The device is tested rigorously to meet stringent automotive qualification standards, such as AEC-Q100.

Ordering Information

The ATA5278-PKQI is available for order from Microchip Technology's official distributors and sales channels. Detailed datasheets, application notes, and additional resources can be accessed through Microchip's website to assist designers and engineers in implementing this device into their PEPS solutions.