NUC120LD1BN Datasheet/PDFNUC120LD1BN is an LQFP-48 pin, low power Microcontroller belonging to the Nuvoton NUC120 series developed by Nuvoton Technology Corporation. It works in an ARM Cortex-M0 core with a clock frequency of 48MHz, making it ideal for a range of applications requiring a general-purpose microcontroller featuring low power consumption.
This Microcontroller integrates a high speed 16-bit timer, two 16-bit PWM outputs, two 8-bit ADC inputs, three 16-bit UARTs, one SPI, one I2C and I2S capabilities. It also has a watchdog timer and memory protection unit, making it able to provide protection for high-value embedded systems.
NUC120LD1BN is ideal for applications in the industrial, security, healthcare, automotive, home appliances, and consumer electronics markets, the automotive industry in particular. It offers high speed, low power consumption and reliable performance due to its ARM Cortex-M0 core and features.
Working PrincipleNUC120LD1BN’s core ARM Cortex-M0 processor works by fetching instructions from its internal memory (either Flash or ROM) and then interpreting and executing each instruction through its internal ALU (Arithmetic Logic Unit). After the instruction is executed, the program counter then increments to point to the next instruction. This process is repeated until the end of the program or when the processor encounters a branch instruction that causes it to jump to another section of code in the program.
NUC120LD1BN includes several internal peripherals, such as ADC, Timers, and UARTs, that are used to interface with other external electronic components. The internal peripherals are controlled by internal registers, and these registers enable the user to customize the operations of the peripheral. For example, a user can set the prescaler of the Timer to a ratio of 1:512 to set the timer frequency to 48MHz/512 = 93.75 KHz, by setting specific value to the Prescaler register.
In addition, the processor also contains a memory protection unit (MPU) to prevent unauthorized access to memory. The MPU enables the user to protect a certain area of memory from being written or read by a program. This can be used to protect sensitive data or sections of code that require protection.
Furthermore, the processor contains a watchdog timer that can detect errors in the program execution and reset the system if an error occurs. The watchdog timer can be configured to any interval that the user desires, and can be set to trigger an interrupt or reset the system. This feature helps to ensure reliability of the system as it can detect any abnormal behavior from the program.
ConclusionNUC120LD1BN is an ideal microcontroller for embedded systems that require low power consumption, reliability and high speed. It includes several features such as a memory protection unit, watchdog timer, and high-speed timer that provide added protection and reliability. This microcontroller can be used in a range of applications, such as in the industrial, security, healthcare, automotive, home appliances, and consumer electronics markets.