Part Number: ADUC831BSZ

Manufacturer: Analog Devices Inc.

Description: IC MCU 8BIT 62KB FLASH 52MQFP

Shipped from: Shenzhen/HK Warehouse

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Technical Specifications of ADUC831BSZ

Datasheet  ADUC831BSZ datasheet
Category Integrated Circuits (ICs)
Family Embedded – Microcontrollers
Manufacturer Analog Devices Inc.
Series MicroConverter? ADuC8xx
Packaging Tray
Part Status Active
Core Processor 8052
Core Size 8-Bit
Speed 16MHz
Connectivity EBI/EMI, I2C, SPI, UART/USART
Peripherals PSM, Temp Sensor, WDT
Number of I/O 34
Program Memory Size 62KB (62K x 8)
Program Memory Type FLASH
EEPROM Size 4K x 8
RAM Size 2.25K x 8
Voltage – Supply (Vcc/Vdd) 2.7 V ~ 5.5 V
Data Converters A/D 8x12b, D/A 2x12b
Oscillator Type Internal
Operating Temperature -40°C ~ 125°C (TA)
Package / Case 52-QFP
Supplier Device Package 52-MQFP (10×10)


The ADUC831BSZ is an outstanding microcontroller with a wide range of integrated functions, making it a versatile and efficient choice for a variety of embedded system applications. We will go into the essential characteristics of the ADUC831BSZ in this comprehensive guide, analyzing its features, uses, and benefits, as well as delving deeper into the technical specs that make it a standout choice for developers and engineers alike.

Understanding the ADUC831BSZ

Analog Devices’ ADUC831BSZ microcontroller represents a harmonic blend of superior microcontroller technology and data collecting capabilities. This versatile microcontroller is intended to satisfy the stringent needs of current embedded systems, and its extensive feature set demonstrates its potential. To acquire a better idea of what makes the ADUC831BSZ a strong choice for developers, let us dissect its essential features and components:

8052-Compatible MCU Core

The ADUC831BSZ is powered by an 8052 microcontroller core that is completely compatible with the 8051 instruction set. This core runs at a rate of 12 core clock periods every machine cycle, providing enough computing power for a wide range of applications. Its interoperability with the well-established 8051 architecture assures ease of programming and a plethora of developer resources.

Data Acquisition Capabilities

One of the ADUC831BSZ’s notable features is its high-performance self-calibrating multichannel 12-bit ADC (Analog-to-Digital Converter). This ADC provides precise and accurate data acquisition at a fast rate of 247 kSPS (kilo Samples Per Second), making it perfect for real-time data processing applications. The self-calibrating characteristic of the ADC maintains data accuracy, making it ideal for applications requiring precision, such as industrial automation, medical equipment, and scientific instruments.

Dual 12-Bit DACs

The ADUC831BSZ includes two 12-bit DACs (Digital-to-Analog Converters) in addition to its excellent ADC. These DACs enable the creation of high-precision analog signals, making them appropriate for signal generation, control systems, and instrumentation. The dual 12-bit DACs provide the precision and versatility required to construct complicated waveforms, manage motor speeds, or generate analog control signals.

On-Chip Memory

The ADUC831BSZ has plenty of on-chip memory to help with program and data storage. It has 62 kB of nonvolatile Flash/EE program memory, 4 kB of nonvolatile Flash/EE data memory, 256 bytes of RAM, and 2 kB of extended RAM. This memory capacity ensures that your applications have enough space for program code and data storage. The memory’s nonvolatile nature ensures that your code and data remain intact even if power is lost, increasing the reliability of your embedded devices.

Additional Analog Functionality

The ADUC831BSZ combines extra analog functions, such as a power supply monitor and a band gap reference, in addition to its basic MCU and data collecting capabilities. These enhancements make the chip more suitable for sensor interface and analog signal processing. The power supply monitor ensures that your system can respond to voltage variations, hence assisting in the maintenance of system stability. For precise measurements and signal conditioning, the band gap reference provides a steady voltage reference.

Digital Peripherals

The microcontroller also has a variety of on-chip digital peripherals, which enhances its capability and adaptability. Two 16-bit – (Sigma-Delta) DACs, dual output 16-bit PWM (Pulse-Width Modulation), a watchdog timer, three timers/counters, Timer 3 for baud rate generation, a time interval counter, and serial I/O ports (I2C, SPI, and UART) are among the peripherals. These peripherals extend the capabilities of the microcontroller and provide a variety of options for system control and communication.

  • The two 16-bit -DACs provide new opportunities for advanced signal processing and modulation. They’re especially effective in applications that need high-resolution analog output, such audio synthesis and waveform generating.
  • The dual output 16-bit PWM controls the duty cycle and frequency of pulse-width modulated signals precisely. This function is extremely useful in motor control, lighting applications, and power management.
  • The watchdog timer guarantees that the microcontroller recovers from unanticipated system faults or hangs, hence improving system reliability.
  • In situations where timing accuracy is crucial, the time interval counter and timers/counters enable for exact timing and event capture.
  • Support for numerous serial communication protocols, such as I2C, SPI, and UART, simplifies connecting with other devices and peripherals. The ADUC831BSZ is capable of communicating with sensors, displays, and other microcontrollers.

Applications of the ADUC831BSZ

The adaptability and feature-rich design of the ADUC831BSZ make it suited for a wide range of applications spanning numerous industries and use cases. Let’s look at some of the important applications where the ADUC831BSZ shines:

  • Automation in the Industrial Sector: The ADUC831BSZ is a fantastic choice for controlling and monitoring industrial processes due to its precise ADC and DAC capabilities, as well as a multitude of digital peripherals. This microcontroller can fulfill your needs whether you’re constructing a programmed logic controller (PLC) or a complicated process control system.
  • Sensor Interface: The ADUC831BSZ is well-suited for interacting with numerous sensors due to its powerful analog capabilities and high-speed ADC. This microcontroller can accurately transform analog sensor data into digital information for additional processing, whether you’re working with temperature, pressure, humidity, or other sensors.
  • Control Systems: The high-performance DACs and PWM outputs of the ADUC831BSZ are crucial for implementing control systems. This microcontroller delivers the precision and control required for effective control loops, whether you need to regulate motor speeds, control heating components, or manage lighting systems.
  • Instrumentation: The ADUC831BSZ is an excellent choice for applications needing precision measurements and test equipment. Its precision and memory capacity enable you to confidently design devices for scientific study, quality control, and testing.
  • Embedded Systems: The ADUC831BSZ is a versatile solution for embedded systems because to its compact design and integration of numerous functionalities. This microcontroller provides the capability and versatility required for a wide range of applications, including IoT (Internet of Things) devices, home automation systems, and consumer electronics.

These are just a few of the many applications for the ADUC831BSZ. Its adaptability, precision, and comprehensive feature set make it a useful tool for developers and engineers in a variety of industries.


The ADUC831BSZ is a versatile microcontroller, ideal for various applications including industrial automation, sensor interfaces, IoT devices, and more. Its precision, memory capacity, and development support make it a top choice for engineers. In an ever-evolving tech landscape, the ADUC831BSZ remains a dependable innovation catalyst, offering precision, reliability, and versatility for embedded systems. Whether you’re an experienced developer or a newcomer, this microcontroller invites exploration and excellence in engineering. To acquire the ADUC831BSZ, visit ICRFQ, a leading Chinese electronic component distributor, offering competitive prices to make this computing marvel accessible to all.

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