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Features

• System Solution for Immobilizer and Passive Entry / Passive Start (PEPS) Functionality
• Optional integrated Open Source Immobilizer Software Stack Supports Automotive Immobilizer Applications (CMMI certified)
• Integrated Ultra-low Power Flash AVR (8-bit) Microcontroller
• 2112-byte EEPROM
• 32-bit Unique Device Identification Number
• Available in Small 5x7 QFN 38-Pin Package
• Contactless Transponder

LF Contactless Transponder Operation in Passive and Active Modes

Integrated Codecs for Enhanced LF Communication Range

Ultra Low-power AES-128 Cryptographic Engine for Using Immobilizer and PEPS Applications

Access Protected Area for two 128-bit Secret Keys for Device Authentication

Optional One 128-bit Transport Key for Initial Configuration

LF Receive Data Integrity Check (CRC-4/CRC-8)

• 3D LF 125kHz LF Receiver

1.5mVpp Worst Case Wake-up Sensitivity for All Receiver Channels

Supply Current for LF Receiver Active (4μA/Listen Mode)

Logarithmic 8-bit digital RSSI for Simultaneous Field Strength Measurement of All

Three Receiver Channels

Two Different Identification (ID) Registers

Programmable Data Frame Length of the ID

• Ultra-low-power AVR Microcontroller

16Kbyte Flash Program Memory (Including 2KB of Immobilizer Software Stack)

2112-byte EEPROM - Including Protected User Data and Device Configuration Data (64Bytes)

Error Correction Code (ECC) Engine Protects Flash and EEPROM

512Bytes of SRAM

Four GP Timers

Power Management Unit

System Clock Management and Monitoring Functions

POR and Brown-out Detection

Programmable Voltage Monitor

RTC and Two Internal System Clock RC Oscillators with f1 = 125kHz, f2 = 4MHz

SPI, TM/SSI, IR Digital Interfaces; dW 1-wire Debug IF with AVR Device Tools

Very Low Power Consumption:

Wide Battery Voltage Range from1.9V to 4.2V (In Contact Mode)

-40°C to +85°C Operating Temperature

Automotive Grade C Compiler