YTM32B1M is China’s first 32-bit automotive MCU certified to ISO26262 ASIL-B. Featuring a 32-bit ARM Cortex-M33 core, 1.25MB e-flash, AES/SHA/SM4 encryption, and AUTOSAR-compliant MCAL. Supports BCM, T-box, CAN gateway, BMS, headlamp control, PEPS keyless entry, OBC, EV power modules, and more. Ensures high functional safety, low power, and fully localized automotive supply chain security.

Product Features

Market Advantages: China’s first automotive-grade MCU product certified to ISO 26262 ASIL-B functional safety standard.

Technical Challenges Overcome:

1. Built on industry-leading 40nm e-flash process with 32-bit automotive-grade ARM Cortex-M33 core. CPU full-temperature domain frequency up to 120MHz with 1.25MB embedded flash. Meets ISO26262 ASIL-B, reliability standards AEC-Q100 Grade1, and supports AES, SHA, SM4 encryption. Provides AUTOSAR-compliant MCAL.

2. Optimized CPU and bus architecture, information security system, functional safety verification, and low-power design. Uses standard cells of different speeds to balance performance and power, minimizing energy waste.

Applications / Functions:

• BCM controller, T-box, in-vehicle CAN gateway

• Mid-to-low-end BMS, headlamp controller, door module controller

• PEPS keyless entry system, central navigation (real-time control), virtual instrument cluster (real-time control)

• OBC on-board charger, thermal management system, exhaust treatment system, power steering

• Brake-by-wire system, AFS adaptive headlight system, vehicle camera controller, HUD

• Charging pile control, EV DC/DC module, PDU power distribution unit

Application Results:

• Meets higher functional safety requirements for automotive applications, supporting intelligent and safe driving.

• Fully localized manufacturing and packaging/testing, securing the domestic automotive core component supply chain.