PCF7961ATT/E,518

RF Transmitter Overview

The PCF7961ATT/E,518 is a single-chip integrated solution combining passive keyless entry (PKE) and immobilizer functions for automotive applications. It utilizes an external coil for non-contact communication with the vehicle base station and harvests power from the magnetic field. The device features a factory-programmed unique serial number for identification and supports secure authentication using encryption keys and random numbers. It includes a 32-bit unique device ID, 512 bytes of EEPROM, and a low-power 8-bit RISC controller.

RF Transmitter Feature Summary

• Integrates immobilizer security and remote keyless entry capabilities into a single silicon component
• Enables non-contact communication with the vehicle base station via an external antenna coil
• Provides secure data exchange through hardware-based encryption algorithms and unique device identification
• Operates by harvesting energy from the magnetic field generated by the reader coil

RF Transmitter Applications

• Passive Keyless Entry (PKE) systems
• Vehicle Immobilizer Security Systems
• Remote Keyless Entry (RKE) Transponders

RF Transmitter Procurement Notes

Verify the specific suffix E,518 against the manufacturer's official ordering guide to confirm packaging and tape-and-reel specifications. Ensure compatibility with the required MRKII programming environment and hardware tools for initial configuration. Confirm that the RoHS status aligns with regional regulatory requirements for automotive components before finalizing procurement orders.

RF Transmitter Selection Notes

Select this component when a unified solution for both anti-theft immobilization and keyless access is required. It is suitable for designs prioritizing low external component count due to its integrated transceiver and power management. Consider the available memory size and encryption modes if custom application logic or specific security protocols are needed for the vehicle platform.

RF Transmitter Part Context

This part belongs to the PCF7961 family of automotive transponder ICs designed by NXP Semiconductors. These devices are engineered specifically for the automotive aftermarket and OEM sectors to provide robust security against relay attacks and cloning. The family offers various package options and encryption configurations to suit different vehicle architectures and cost constraints.

RF Transmitter Replacement Considerations

Consult NXP official documentation for direct pin-to-pin replacements within the PCF7961 series. Verify that any substitute part matches the required encryption algorithm (HT2/HT3) and frequency band support. Cross-reference the ordering code suffixes to ensure identical packaging and manufacturing revisions.