MS51XB9BE

The NuMicro^® MS51XB9BE is an 1T-8051-based CMOS microcontroller, running at speeds up to 24 MHz. It features 16 KB of Flash Memory, 1 KB of SRAM, and 4 KB of loader ROM for in-system programming (ISP). This microcontroller is equipped with a wide range of peripherals, including 2 sets of UART, 1 set of I²C, 1 set of SPI, 18 GPIO pins, 8-channel 12-bit ADC, a watchdog timer, and 6-channel 16-bit PWM. The package is available in QFN20 (3.0 X 3.0 mm).

Applications

• LED lighting
• Home appliances
• Industrial control
• Stepper motor
• Battery management system
• Power supplies

Key Features

• Operating Characteristics
  • Voltage range: 2.4V to 5.5V
  • Temperature range: - 40 ℃ to + 105 ℃
  • EFT 4 kV
• Core
  • 1T 8051-based CMOS microcontroller running up to 24 MHz
• Memories
  • 16 K bytes Flash
  • Configurable 4 K / 3 K / 2 K / 1 K Bytes of LDROM, which provides flexibility to user developed Boot Code
  • 1 KB bytes SRAM
  • 256 Bytes on-chip RAM
  • Flash Memory accumulated with pages of 128 Bytes each
  • Built-in In-Application-Programmable ( IAP )
• Clocks
  • External clock input ( 32 K body only )
  • 16 MHz high-speed internal oscillator trimmed to ± 1 % when VDD 5.0 V, ± 2 % in all conditions.
  • 24 MHz high-speed internal oscillator trimmed to ± 1 % when V_DD 5.0 V, ± 2 % in all conditions
  • 10 kHz low-speed internal oscillator
  • On-the-fly clock source switch via software
• Power management
  • Brown-out detection ( BOD ) with low power mode available, 4-level selection, interrupt or reset options
  • Power-on reset ( POR )
• Peripherals
  • Two 16-bit Timers / Counters 0 and 1 compatible with standard 8051
  • One 16-bit Timer 2 with three-channel input capture module and 9 input pin can be selected
  • One 16-bit auto-reload Timer 3, which can be the baud rate clock source of UARTs
  • One 16-bit PWM counter interrupt for timer
  • 6-channel 16-bit pulse width modulator (PWM) output, with different modes and Fault Brake function for motor control
  • One programmable Watchdog Timer ( WDT )
  • One dedicated Self Wake-up Timer ( WKT )
  • 2 sets of full-duplex UART ports with frame error detection and automatic address recognition
  • 1 set of SPI port with master and slave modes, up to 12 Mbps when system clock is 24 MHz
  • 1 set of I²C bus with master and slave modes, up to 400 kbps data rate
  • 8 channels of 12-bit ADC, up to 500 ksps converting rate
  • 18 general purpose I/O pins and 1 input-only pin
  • Programmable pull-ups pull-lows
• Development Tools
  • Nuvoton Nu-Link with KEILTM and IAR development environment
  • Nuvoton Nu-Link In-Circuit-Programmer
  • Nuvoton In-System-Programming ( ISP )
• 96-bit Unique ID ( UID )
• 128-bit Unique Customer ID ( UCID )
• 2-Byte ( 16-bit ) PDID
• Package
  • QFN20 (3.0 X 3.0 mm)
• Evaluation Board
  • NuTiny-MS51FB

Technical Documents

• For more details, please visit Nuvoton Official Website: GO
• Evaluation Board: NuTiny-MS51FB