AC7815
High-performance automotive MCU with Cortex-M3 core, 384KB Flash, and advanced peripherals for powertrain applications
Product Overview
Description
The AC7815 is a high-performance automotive microcontroller featuring ARM Cortex-M3 processor for demanding automotive applications.
With 384KB Flash memory, 64KB RAM, and AEC-Q100 Grade 1 qualification, it is ideal for powertrain and transmission control applications.
The device includes advanced motor control peripherals, high-speed ADCs, and comprehensive communication interfaces.
Product Series
AC
Primary Application
Transmission control
Key Features
- ARM Cortex-M3 processor up to 72MHz
- 384KB Flash memory with ECC protection
- 64KB SRAM with ECC protection
- CAN-FD and LIN interfaces
- Dual 12-bit ADCs with 16 channels
- Advanced motor control timers
- Ethernet MAC for diagnostics
- AEC-Q100 Grade 1 qualified
Specifications
| Core | ARM Cortex-M3 up to 72MHz |
|---|---|
| Flash Memory | 384KB with ECC |
| RAM | 64KB with ECC |
| Operating Voltage | 3.3V to 5V |
| Temperature Range | -40°C to +125°C (AEC-Q100 Grade 1) |
| Package | LQFP-100, LQFP-64 |
Applications
Transmission control
Industrial automation and control
Engine management
Electronic system design
Battery management systems
Battery and charging management
Motor control systems
Motor drive and control systems
Diagnostic gateways
Electronic system design
FAE Expert Insights
"The AC7815 is my recommended MCU for powertrain and transmission control applications. The Cortex-M3 core at 72MHz provides significantly more processing power than M0+ cores, enabling complex control algorithms and fast response times. The dual ADC architecture allows simultaneous sampling of multiple sensors, critical for engine management applications. I have successfully used this MCU in transmission control modules where precise timing and fast processing are essential. The Ethernet MAC enables advanced diagnostic capabilities and firmware updates. The comprehensive motor control peripherals support complex transmission actuator control. For powertrain applications requiring higher performance than the AC7801x series, the AC7815 offers excellent performance at competitive pricing."
High-performance Cortex-M3 MCU for powertrain and transmission control applications
— Jennifer Liu, BeiLuo
Frequently Asked Questions
What performance advantages does Cortex-M3 offer over Cortex-M0+?
The Cortex-M3 core offers higher clock speed (72MHz vs 48MHz), single-cycle multiply and hardware divide instructions, more efficient interrupt handling with tail-chaining, and better code density with Thumb-2 instruction set. These features result in approximately 2x better performance for control algorithms and signal processing tasks. The M3 core is ideal for applications requiring faster response times.
Select AC7815 with Cortex-M3 for powertrain and high-performance applications.
Is AC7815 suitable for transmission control applications?
Yes, the AC7815 is specifically designed for transmission control with its Cortex-M3 core at 72MHz, dual ADC architecture for simultaneous sensor sampling, and advanced motor control peripherals. The 384KB Flash accommodates complex transmission control software. The Ethernet MAC enables diagnostic communication. These features make it ideal for automatic transmission control modules.
AC7815 is excellent for transmission control requiring high processing power.
What is the dual ADC architecture used for?
The dual ADC architecture allows simultaneous sampling of multiple sensors, which is critical for engine management applications. Both ADCs can sample at the same time, enabling precise measurement of crankshaft and camshaft positions. This improves ignition timing accuracy and engine efficiency. The 12-bit resolution provides sufficient precision for automotive sensors.
Dual ADC enables simultaneous multi-sensor sampling for precise control.
Does AC7815 support AUTOSAR?
Yes, the AC7815 supports AUTOSAR Classic Platform with AutoChips MCAL drivers. The drivers are compliant with AUTOSAR 4.x specifications and support popular configuration tools. The 384KB Flash provides space for AUTOSAR BSW and application software. The hardware security features support secure boot requirements.
AC7815 is suitable for AUTOSAR-based automotive applications.
What packages are available for AC7815?
The AC7815 is available in LQFP-100 and LQFP-64 packages. The LQFP-100 provides all GPIO pins and peripheral interfaces. The LQFP-64 is a smaller option with reduced pin count for cost-sensitive applications. Both packages are AEC-Q100 Grade 1 qualified for automotive temperature ranges.
Select package based on required I/O count and board space constraints.