Nuvoton MS51FB9AE 8-bit 8051 Microcontroller 16KB Flash 24MHz TSSOP-20

The Nuvoton MS51FB9AE is a high-performance low-power 8-bit microcontroller engineered around an enhanced 1T 8051 CPU core. Unlike traditional architectures, this advanced 1T 8051 MCU executes instructions at much higher efficiency, delivering significantly improved processing throughput for modern embedded applications.

Designed for compact cost-sensitive system designs, the MS51FB9AE integrates 16KB Flash memory, 1KB SRAM, and a 4KB loader ROM dedicated to In-System Programming (ISP) firmware updates. Operating at up to 24MHz within a wide 2.4V–5.5V range, it interfaces seamlessly with both 5V industrial systems and low-voltage electronics. Packed with diverse communication peripherals, a high-resolution 12-bit ADC, and robust PWM channels, it is a reliable space-saving solution for hardware engineers and IoT developers.

Key Specifications

• Manufacturer: Nuvoton Technology
• Part Number: MS51FB9AE
• CPU Core: 8-bit 1T 8051-based
• Max Clock Frequency: 24 MHz
• Flash Memory: 16 KB
• SRAM: 1 KB
• Loader ROM (ISP): 4 KB
• Operating Voltage: 2.4V to 5.5V
• GPIO Pins: 18 programmable I/O pins
• Communication: 1× I²C, 1× SPI, 2× UART
• ADC: 8-channel, 12-bit
• PWM Channels: 6× 16-bit PWM
• Operating Temperature: −40°C to +105°C (Industrial Grade)
• Package: TSSOP-20 (Surface-Mount)

Applications

• Industrial automation and control for smart sensor nodes, motor drivers, and industrial monitoring systems
• IoT and smart home devices including compact wireless gateways, smart lighting switches, and environmental data loggers
• Consumer electronics such as household appliances, remote controllers, and handheld electronic tools
• Power management for battery management systems, LED dimmers, and power control units

Package Includes

• 1 x Nuvoton MS51FB9AE 8-bit Microcontroller (TSSOP-20 Surface-Mount)

Note: Image is for representation purpose only.