High-Performance Microcontroller

The NuMicro® M2A23LG5AC is a new microcontroller product designed for automotive and industrial applications. It delivers high performance with the capability to withstand ambient temperatures of up to 125°C and operates within a wide voltage range of 2.5V ~ 5.5V. Featuring up to three CAN FD interfaces, this series is tailored to meet the demanding requirements of automotive and industrial applications.

Core, Memory, and PDMA

Powered by the ARM® Cortex®-M23 core, the M2A23LG5AC runs at up to 72 MHz. Its Memory Protection Unit (MPU) and Nested Vectored Interrupt Controller (NVIC) enhance security and task management. The series provides up to 256 KB of embedded Flash Memory, 24 KB of SRAM, and 4 KB of Flash loader memory (LDROM) for In-System Programming (ISP). It supports multiple bootloader interfaces, including CAN FD, SPI, UART, and I²C. Additionally, up to six PDMA channels enable efficient data transfers, reducing CPU load and ensuring smoother system performance.

Timers, Analog, and Communication Interfaces

The M2A23LG5AC offers robust timer functionality, including four 32-bit timers, twelve 144 MHz PWM outputs, and two watchdog timers—one of which is a windowed variant for enhanced reliability. A 24-bit SysTick timer supports precise task scheduling, making it suitable for real-time applications.

Analog features include a 12-bit ADC with a sampling rate of up to 2 Msps across 12 channels, two comparators, and a built-in temperature sensor, ensuring reliable data acquisition.

For communication, the M2A23LG5AC integrates multiple peripherals: one LIN interface, two UART interfaces with support for One-Wire, IrDA, and RS485 functions, one I²C interface, one SPI interface, and two USCI modules configurable as UART, I²C, or SPI. Three CAN FD interfaces ensure compatibility with modern automotive and industrial networking standards.

I/O

M2A23LG5AC supporting up to 42 general-purpose I/O (GPIO) pins.

Key Features: