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M0518LD2AE ARM Cortex-M0 32-bit MCU 68KB Flash 50MHz Microcontroller LQFP-48
M0518LD2AE Product Overview
The M0518LD2AE is a 32-bit microcontroller from Nuvoton NuMicro® M0518 series, built on the ARM Cortex-M0 core and designed for industrial control and applications requiring rich communication interfaces. Housed in an LQFP-48 (7×7mm) package, it operates at up to 50MHz across a wide 2.5V to 5.5V supply voltage range with an industrial temperature range of -40°C to +105°C, and offers high noise immunity (8kV ESD / 4kV EFT). The device integrates 68KB Flash (APROM), 8KB SRAM, 4KB loader ROM for ISP, and configurable Data Flash, with a built-in 22.1184MHz high-precision RC oscillator (±1% accuracy at 25°C, 5V). With rich peripherals including 42 GPIO, 8-channel 12-bit ADC (up to 1MSPS), 24-channel 16-bit PWM, four 32-bit timers, 6 UART, 1 SPI, and 2 I2C, the M0518LD2AE provides a cost-effective embedded control solution for LED lighting control, industrial automation, motor control, and smart home applications.
| Series | NuMicroTM M0518 |
| CPU Core | Arm Cortex-M0 (32-bit) |
| Max Frequency | 50 MHz |
| Program Memory | 68KB Flash (APROM) |
| SRAM | 8KB |
| Data Flash | Configurable |
| ISP Loader ROM | 4KB |
| Operating Voltage | 2.5V ~ 5.5V |
| Operating Temp | -40°C ~ +105°C |
| I/O Pins | 42 |
| ADC | 8 channels × 12-bit, up to 1 MSPS |
| PWM | 24× 16-bit, or 4 complementary pairs |
| Connectivity | 6×UART (1Mbps), 1×SPI (36MHz), 2×I2C (400kHz) |
| Timers | 4×32-bit, 1×24-bit system timer |
| Clock System | 22.1184MHz HS RC OSC (±1% @25°C,5V), 4~24MHz ext. crystal, 10kHz LS OSC |
| Other Peripherals | WDT, WWDT, LVR, BOD, LIN |
| Programming | ISP, ICP, IAP |
| Package | LQFP-48 |
M0518LD2AE Applications
LED lighting control and dimming drivers
Industrial automation control (PLC expansion modules, sensor nodes)
Multi-communication systems (gateway devices requiring multiple UARTs)
Motor control and servo drives
Consumer electronics and smart home
FAQ
Q: How accurate is the built-in RC oscillator?
A: The built-in 22.1184MHz high-precision RC oscillator achieves ±1% accuracy at 25°C, 5V, and ±3% over the full -40°C to +105°C temperature range and 2.5V to 5.5V voltage range - accurate enough for standard UART baud rate communication without an external crystal, saving BOM cost.
Q: How many UART interfaces are available?
A: The M0518LD2AE provides 6× UART interfaces at up to 1Mbps, capable of connecting multiple communication modules simultaneously (Bluetooth, Wi-Fi, GPS, etc.) - ideal for industrial gateways and IoT devices requiring multiple serial ports.
Q: What is the PWM output capability?
A: The built-in 16-bit PWM generator outputs up to 24-channel PWM or 4 complementary PWM pairs, with independent clock sources and fault brake function - ideal for multi-servo control and three-phase motor drive applications.
Q: Does it support ISP in-system upgrade?
A: Yes. The M0518LD2AE supports ISP (In-System Programming) and ICP (In-Circuit Programming) via UART for field firmware updates.
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- Part number:
- M0518LD2AE
- Series:
- M0518
- CPU Core:
- Arm Cortex-M0
- Max Frequency:
- 50 MHz
- Program Memory:
- 68KB Flash
- SRAM:
- 8KB
- Operating Voltage:
- 2.5V ~ 5.5V
- Operating Temp:
- -40°C ~ +105°C
- Package:
- LQFP-48
- Programming:
- ISP、ICP、IAP
