Ultra-low-power AES-128 AVR MCU with immobilizer

  • 01-Nov-2011 09:27 EDT
F2-110926-Car_Access_ATA5790N.jpg

Atmel’s secure ATA5790N is an ultra-low-power AVR microcontroller (MCU) with advanced encryption standard (AES)-128 immobilizer protocol stack. The device includes low-frequency immobilizer functionality and a 3-D low-frequency receiver in a single 5 x 7 mm (0.196 x 0.275 in) package. The AVR provides 16k flash and 2k EEPROM. It offers increased battery life with the lowest current consumption in the industry, claims the company, with a listening mode of less than 4.5 µA. When combined with the companion device, ATA5830 radio frequency transmitter, the Atmel ATA5790N is suitable for high-volume uni- and bi-directional car key fobs for passive-entry and passive-start systems.

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