With the rapid development of automotive intelligence, high-performance, high-function safety, and high-data security automotive-grade chips are crucial demands for manufacturers. BAT32A239/BAT32A279, developed independently by China Micro Semicon Co., Ltd. (hereinafter referred to as Cmsemicon, stock code: 688380), are high-quality 32-bit MCUs specifically designed for automotive grade applications. These MCUs, certified with AEC-Q100, are extensively used in various automotive electronic control modules including digital dashboards, digital keys, T-BOX, DC/DC power supplies, seat controllers, ultrasonic radar, ripple anti-pinch, front and rear headlights, AQS sensors, air conditioning controllers, and BCM controllers within the vehicle domain.

The BAT32A239/279 chips, based on the Arm Cortex^®-M0+ core, operate at a frequency of 64MHz with a working temperature range of -40℃ to 125℃. Both variants meet stringent requirements for automotive grade performance, safety, and quality, and have been introduced to Tier 1 clients for batch applications.

BAT32A239：

256KB Flash, 32KB SRAM, and 2.5KB dedicated D-Flash, featuring rich analog peripherals and multiple communication interfaces including a 2-channel CAN/LIN. Operating voltage ranges from 2.0V to 5.5V, available in QFN48, LQFP48, LQFP64, and LQFP80 packages.

BAT32A279：

512KB Flash, 64KB SRAM, and 20KB dedicated D-Flash, with rich analog peripherals and multiple communication interfaces including a 3-channel CAN/LIN. Operating voltage ranges from 2.0V to 5.5V, available in LQFP64, LQFP80, and LQFP100 packages.

The Matrix Rear Combination Headlight Solution

Solution Features：

Designed based on the BAT32A239

Utilizes CAN communication to control the left/right fixed tail lights, side dynamic tail lights, and overall combination lights

Uses OLED drivers for brake, turn signal, position, and reverse lights

Supports rear fog lights, high-mount brake lights, license plate lights, and side marker lights control with open/close functionality

Supports music rhythm synchronization, optional preset music, and welcome animation (multiple modes) scenes

The Automotive Air Conditioning Compressor Solution

Solution Features：

Designed based on the BAT32A239

Supports motor control algorithm optimization and protocol customization

Supports CAN/LIN dual selection

Supports high-precision sampling with single/dual resistor configuration

Provides over-temperature, over-voltage, over-current protection, isolated circuit protection, and inverter circuit protection

The Electric Vehicle Seat Solution

Solution Features：

Designed based on the BAT32A279

Uses motor current and Hall sensors for position and resistance detection

Integrates anti-pinch function, position memory, integrated heating, and ventilation functions

Supports multi-directional electric seat adjustment and control, reserved an interface for massage lumbar support control

Features self-learning function, adaptive function, and one-touch adjustment function

The BCM Controller Solution

Solution Features：

Designed based on the BAT32A279

Controls various vehicle modules such as interior/exterior lights, wiper/washer, window/sunroof/tailgate, and door lock status monitoring

Controls electric rearview mirror heating and instrument backlight adjustment

Supports expansion modules like RKE and PEPS

Supports 3x CANs and 1x LIN communication interface