The ATAR890K is a microcontroller manufactured by Atmel. It is designed for automotive applications, specifically in keyless entry systems and remote control units. It offers a robust and secure solution for these applications, ensuring reliable performance in harsh automotive environments.

Applications

• Keyless entry systems in automobiles
• Remote control units for vehicles
• Tire Pressure Monitoring Systems (TPMS)
• Immobilizer systems
• General automotive control applications

Features

• High-performance AVR RISC microcontroller
• Integrated AES-128 encryption for secure communication
• Low power consumption for extended battery life
• Wake-up on radio functionality
• On-chip EEPROM for data storage
• Various communication interfaces, including SPI and UART
• Wide operating voltage range
• Automotive qualified according to AEC-Q100

Benefits

• Enhanced security against unauthorized access
• Long battery life due to low power consumption
• Reliable performance in harsh automotive environments
• Simplified system design due to integrated peripherals
• Reduced bill of materials due to integrated functionality
• Improved system robustness

Additional Details

The ATAR890K operates within a specific frequency range optimized for remote keyless entry systems. It includes advanced power management features to minimize current draw during standby and active modes. The microcontroller's architecture allows for efficient execution of cryptographic algorithms, ensuring fast and secure data transmission. It also includes watchdog timers and voltage monitoring circuits for enhanced system reliability.