One-Chip Smart SBC for Edge Nodes

3-in-1 Integration of MCU, LDO, and LIN PHY | ASIL-B Functional Safety | Cost Reduction & Efficiency Enhancement

The IM90xxL series of Smart SBCs are automotive-grade 3-in-1 integrated chips specifically designed by Immorta for automotive edge intelligent nodes. The chip integrates a 40V high-voltage LDO, a LIN transceiver, and an embedded MCU, offering enhanced security, rich connectivity, and excellent scalability. The product has passed AEC-Q100 Grade 1 qualification and meets the ASIL-B functional safety standard. It is widely used in various automotive actuators and sensor controllers, such as sentry sensors, gas sensors, fragrance generators, lighting controllers, seat/window/door/wiper controllers, as well as various BLDC/PMSM motor control and in-vehicle switches. 

Key Features

• Certified for ISO 26262 ASIL-B functional safety. 

• Compliant with AEC-Q100 Grade 1 standard (-40°C to +125°C). 

• 32-bit Arm® Cortex®-M0+ core with CPU main frequency up to 48 MHz. 

• Integrated high-voltage LDO, accepting direct vehicle battery input (5.5V to 40V). 

• Integrated 1-channel LIN PHY, compatible with LIN 2.0/2.1/2.2, with transmission rates up to 20Kbps. 

• Memory Architecture: 256KB Flash, 64KB Data Flash (100k write/erase cycles), 32KB SRAM; all blocks support hardware ECC. 

• Peripherals: 1x CAN FD, 3x UART/LIN, 2x SPI, 2x I2C. 

• Analog & Timers: 20-channel 12-bit 1Mbps ADC, 16-channel 16-bit PWM supporting dead-time insertion and fault detection. 

• Supports LQFP48 packaging. 

Highlights

• Functional Safety: Complies with ASIL-B standard to ensure safe and reliable applications. 

• High Integration: A single chip replaces multiple traditional components, simplifying design and reducing BOM costs and PCB area. 

• High Reliability: Fewer external components and solder joints significantly enhance system stability. 

• Power Efficiency: Wide 6V to 40V voltage supply support optimizes power dissipation and eliminates external regulators. 

• Excellent EMC: Built-in LIN physical layer fulfills rigorous automotive electromagnetic compatibility requirements. 

• Generous Flash Storage: 256KB Code Flash for code execution and 64KB Data Flash for data logging or simulated EEPROM emulation. 

Applications

• Battery Management: BMS Control, Battery Pack Pressure Sensing (BPS) 

• Independent Sensors: Gas Sensors, Sentry Sensors, Fragrance Generators 

• Bluetooth / NFC Digital Keys 

• Lighting Control: Interior Lighting, Tail Lights, Fog Lights, Front Combo Lights 

• Comfort Systems: Seat, Window, Door, and Wiper Control 

• Infotainment Systems (as an auxiliary/companion MCU) 

• BLDC / PMSM Motor Control 

• Acoustic Vehicle Alerting System (AVAS) 

• Ultrasonic Radar Nodes 

Product Ordering Matrix