The NXP PCF7953ATT is an advanced, highly integrated car entry solution that combines multiple functionalities into a single, compact package. This versatile device is designed to meet the rigorous demands of modern automotive applications, providing manufacturers with a reliable and secure way to implement keyless entry and start systems in their vehicles.

Key Features

• High-Security Level: The PCF7953ATT incorporates a sophisticated transponder chip that features Hitag AES-based cryptography, offering a high level of security against duplication and hacking attempts.
• Low Power Consumption: Designed with energy efficiency in mind, the chip operates at a low power level, which is critical for battery-operated devices like car keys.
• Multi-Functional: This device supports Passive Keyless Entry (PKE) and Go systems, Remote Keyless Entry (RKE), and Immobilizer functions, making it a comprehensive solution for vehicle access and security.
• Frequency Agility: The PCF7953ATT operates over a wide frequency range, ensuring compatibility with global standards and facilitating its use in various markets.

Applications

The NXP PCF7953ATT is primarily used in the automotive industry, where it serves as the core component in:

• Key fobs for Passive Keyless Entry and Go systems
• Remote Keyless Entry systems
• Immobilizer systems

Technical Specifications

• Package: TSSOP20
• Supply Voltage: 2.0 V to 3.6 V
• Operating Frequency: 125 kHz and 13.56 MHz for RKE and PKE applications
• Temperature Range: -40°C to +85°C

With its robust security features, low power consumption, and multi-functional capabilities, the NXP PCF7953ATT is an ideal choice for automotive manufacturers looking to enhance the user experience with advanced vehicle entry systems. Its compatibility with international frequency standards and wide temperature range ensures reliable operation in diverse environments and across different regions.