ADUCM331WFSBCPZ-RL | Automotive MCU with Battery Monitoring | ARM Cortex-M3 SoC

Product Overview

     The ADUCM331WFSBCPZ-RL is a highly integrated automotive-grade microcontroller system on chip (SoC) designed for precision battery sensing and embedded monitoring. Featuring a 32-bit ARM Cortex-M3 core running at 16.384 MHz, the device integrates dual simultaneous 20-bit Σ-Δ ADCs with programmable gain amplifiers and an on-chip precision reference, enabling accurate measurement of battery voltage, current, and temperature. It supports LIN communication, SPI, and general-purpose I/O, with Flash, EEPROM, and SRAM memory, making it a complete embedded sensing and control solution.

Key Features

• 32-bit ARM® Cortex-M3 core @ 16.384 MHz
• 128 KB Flash / 10 KB SRAM / 4 KB EEPROM (approx)
• Dual 20-bit Σ-Δ ADC with programmable gain and internal precision reference
• Wide supply range: 3.6 V to 19 V (supports direct automotive battery input)
• Integrated LIN physical interface compatible with LIN 2.2 / SAE J2602 slave mode
• SPI interface and up to 6 GPIO pins
• Watchdog, power-on reset, and wake-up timers
• Automotive qualification AEC-Q100
• Operating temperature: -40 °C to +115 °C (typ)
• Small 32-pin LFCSP (6×6 mm) package, tape & reel (RL)

Applications

• Automotive battery management systems (BMS) and state-of-charge sensing
• Precision voltage, current, and temperature measurement
• Embedded sensor data acquisition and processing
• LIN bus node control and communication
• Portable/industrial monitoring and control systems
• Power system supervision and safety control architectures

Electrical Characteristics