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).

Target Application:

•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 VDD 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