MS51FB9AE 8 Bit MCU Nuvoton
The Nuvoton MS51FB9AE is a cost-effective 1T 8051-based microcontroller for embedded applications. It combines a fast core, on-chip memory and a rich peripheral set with a wide operating range.
Key Features
8051 Core
1T 8051-based CPU operating up to 24 MHz with an internal oscillator.
On-Chip Memory
16 KB Flash program memory with ISP/ICP support, 1 KB SRAM and configurable Data Flash.
Peripheral Set
6-channel 16-bit PWM, 12-bit ADC, two UARTs, SPI and I2C for sensors, actuators and communication modules.
Reliable Operation
Power-on reset, brown-out detection, low-voltage reset and low-power modes support stable operation.
Technical Specifications
- CPU: 1T 8051-based, up to 24 MHz
- Memory: 16 KB Flash, 1 KB SRAM, 1 KB configurable Data Flash
- ADC: 12-bit, up to 8 channels, 100 kSPS
- Timers: three 16-bit timers, watchdog timer and power-fail watchdog timer
- Communication: 2 UART, 1 SPI, 1 I2C
- PWM: 6-channel, 16-bit
- GPIO: up to 22 pins, depending on device/package
- Operating voltage: 2.4–5.5V
- Operating temperature: −40°C to +105°C
- Low-power modes: Idle and Power-down
Applications
Home Appliances
Control functions in kitchen appliances, washing machines and consumer electronics.
Industrial Control
Sensor interfaces, motor control and small automation systems.
IoT Devices
Smart sensors, connected endpoints and efficient data acquisition.
Portable Electronics
Battery-powered devices, handheld tools and personal electronics.
Development Benefits
ISP and ICP support simplify firmware updates and debugging. The fast core, peripheral integration and reset functions support responsive, economical embedded designs.






