A fully integrated Ultra-low-power solution based on 8-bit AVR core and AES-128 Crypto Engine, the ATA5702 is ideal for Automotive Passive Entry/Start (PEPS), Automotive Remote Keyless Entry (RKE) or/and consumer access via any wearable applications. It features:

• Ultra Low Power AVR Microcontroller with:
• 32 kBytes user Flash
• 2 kBytes EEPROM with secure conditional Access
• 128 Bit AES Crypto Engine built in Hardware with secured and fast access
• 19 GPI/Os
• 2 SPI and 2 TWI Interfaces, Debug Wire
• 3D Low Frequency Receiver:
• Frequency: 100 to 125 kHz
• Integrated Resonance Frequency Tuning for 3 D Antenna
• Integrated Quality Factor tuning for 3D Antenna
• Programmable Q-Factor for the Receive Mode
• Programmable Manchester violation code
• Programmable Receiver Sensitivity
• Ultra Low Power LF Polling Mode
• High RSSI accuracy for accurate distance measurement
• Low Frequency vector calculation unit to support Relay Attack Countermeasures
• UHF Transmitter
• Frac-N PLL
• Programmable Output Power
• Supports 3 bands with a single Crystal of 24 MHz: 310-318 MHz, 418-477 Mhz and 868-956 MHz
• Supports ASK, FSK and GFSK modulation
• Integrated loop Antenna Tuning
• 80kbits/s datarate in buffered Manchester coded mode
• 3 D Transponder
• 3 D Transponder operation in parallel with or without battery
• Support Biphase, Manchester modulations with programmable NRZ code insertion for code violation
• Autonomous Operating Codec for enhanced communication range: Manchester (Uplink) and BPLM/QPLM(downlink)
• Power Management unit
• Complex Power Management unit with low Power POR and Brown out detection
• Fast Voltage Monitor for battery control
• Programmable Battery charging
• Supply Voltage: 2.1 V to 4.2V
• Operating Temperature: -40C to 85C
• +/-4kV HBM ESD at all pins
• Small 5x7 mm2 QFN Wettable flanks, 38 pins

NOTE: Hardware User Manual, Software User Manual and a wide assortment of application notes are available upon request.