Among the major advantages offered by the new devices are their ultra-low power consumption, exceptional key location accuracy, and unique protection against man-in-the-middle attacks. Car theft through attacks on vehicles equipped with PEPS systems is becoming a major security concern for automakers. The two new devices exclusively incorporate a low-frequency (LF) vector computing unit that helps customers develop effective countermeasures against man-in-the-middle attacks at no additional cost.
The new devices are also characterized by their excellent low-frequency sensitivity, which offers practical features such as personalized welcome lighting when approaching the vehicle or automatic vehicle locking when moving up to 10 meters away. This always-on feature has the lowest power consumption on the market, tripling battery life in maximum sensitivity mode.
These devices offer the highest key location accuracy on the market, a crucial aspect for accurately determining whether a key fob is inside or outside the vehicle and meeting insurance companies' precision requirements. Furthermore, the devices integrate an open-source, royalty-free immobilizer protocol based on AES-128, enabling interoperability so that high-volume customers can implement alternative supply strategies.
“The automotive access market is growing rapidly, driven by increasing demand for practical features such as keyless entry, keyless locking, and even personalized welcome lighting,” said Matthias Kaestner, vice president of Microchip’s Automotive business unit. “As these devices become more prevalent, enhanced security to prevent car theft is vital, and Microchip provides what our customers need.”.
Both the ATA5702 and ATA5700 integrate a 3D immobilizer, high-sensitivity 3D LF receivers, a digital processing unit, a 128-bit cryptographic engine, an LF vector calculation unit, and a microcontroller. The ATA5702 also integrates a fractional phase-locked loop (PLL) in the RF transmitter, ensuring a robust UHF (Ultra-High Frequency) link immune to jamming attempts and interference.
Product demonstrations will be held in Hall A4, Stand 578 of Electronics (November 8-11).
To facilitate evaluation and development, Microchip offers Atmel Studio 7 for software development targeting 8-bit AVR® microcontrollers, as well as the ATAK51004-v2 evaluation kit for product evaluation.
The ATA5700 and ATA5702 are in production and are now available. Both devices are supplied in a 5 x 7 mm QFN package with wettable edges.
