Product Overview: PCF7935AS/3851,122

The PCF7935AS/3851,122 is a sophisticated security transponder from NXP Semiconductors, designed to elevate the security and functionality of automotive and other keyless entry systems. This high-quality integrated circuit is part of NXP's broad portfolio of RFID and smart card ICs, tailored for use in immobilizers and other applications where a secure exchange of data is crucial.

Key Features

• Security: The PCF7935AS/3851,122 comes with advanced security features including mutual authentication, encryption, and a unique secret key for each device, ensuring a high level of protection against unauthorized access and cloning.
• Memory: It contains a programmable read-only memory (PROM) where the secret key and configuration data are stored, providing flexibility in programming to meet specific customer requirements.
• Frequency: This transponder operates at 125 kHz, a common frequency for RFID systems, ensuring compatibility with a wide range of readers and existing infrastructures.
• Passive Operation: As a passive RFID device, it does not require its own power source, deriving the necessary energy from the electromagnetic field generated by the reader.
• Package: The PCF7935AS/3851,122 is available in a small and robust package, making it suitable for harsh environments and easy to integrate into various form factors.

Applications

The versatility of the PCF7935AS/3851,122 allows it to be used in a variety of applications beyond automotive immobilizers. These include access control systems, asset tracking, and any application requiring secure wireless communication and identification.

Why Choose the PCF7935AS/3851,122?

NXP's commitment to quality and security is evident in the PCF7935AS/3851,122. With its robust security features and flexible memory options, this transponder is an ideal choice for manufacturers and designers looking to implement or upgrade their security systems. Its compatibility with existing RFID infrastructure and passive operation make it a cost-effective and energy-efficient solution for a multitude of applications.