Supply Microchip AVR® MCU Series:AVR EA,AVR DU,AVR DD,AVR EB,AVR SD,AVR DB
Shenzhen Mingjiada Electronics Co., Ltd. is a professional distributor of electronic components, maintaining a large inventory of in-stock products. The company specialises in: integrated circuits (ICs), 5G chips, new energy ICs, IoT chips, Bluetooth chips, automotive chips, AI ICs, Ethernet ICs, memory chips, sensors, IGBT modules, and more. The company adheres to the principles of ‘credibility first, quality first, timely delivery, thin margins and high volume sales, and customer service first,’ providing customers with comprehensive and high-quality supply services.
Core Supply Advantages:
Authentic Factory Product Guarantee: All products are procured through authorised channels, ensuring 100% authentic factory products, and complete factory batch numbers are provided.
Inventory Availability: The company has branches in Shenzhen, Hong Kong, and other locations, enabling 48-hour express delivery. Some urgent orders can even be shipped within 24 hours domestically.
Flexible procurement policies: We support small-batch splitting (minimum order quantity of 1 piece), futures reservations, VMI consignment, and other procurement methods to meet customers' diverse needs at different stages of R&D and production.
Price competitiveness: Through large-scale procurement and optimised supply chain management, we offer customers the most competitive market prices, thereby reducing overall project costs.
AVR® Microcontrollers (MCUs)
AVR® MCUs offer exceptional performance, energy efficiency, and flexibility for a wide range of embedded applications. With customizable peripherals and a leading code-efficient architecture, you can achieve multiple functions on a single chip through our award-winning development ecosystem, with a smooth and straightforward programming process.
Overview and Technical Highlights of the AVR Microcontroller Series
Microchip's AVR microcontroller family holds a significant position in the embedded systems field due to its outstanding energy efficiency, rich integrated peripherals, and mature development ecosystem. Since its introduction, the AVR architecture has become a benchmark product in the 8-bit MCU market thanks to its advantages such as a reduced instruction set (RISC) design, single-cycle instruction execution, and high code density.
The AVR microcontroller series comprises six main product lines, each with its unique technical positioning:
AVR SD Series: A cost-effective solution for entry-level applications, optimising cost structure while retaining the advantages of the AVR core, particularly suitable for price-sensitive consumer electronics and simple control applications.
AVR DD Series: Represents the perfect combination of small packaging and high integration, particularly suitable for space-constrained application scenarios, offering small packaging options with 14 to 32 pins.
AVR DB Series: Optimised for motor control and power conversion applications, enhancing motor control-specific peripherals based on the standard AVR architecture.
AVR EB Series: Positioned as a high-performance 8-bit solution, it is suitable for applications requiring strong processing capabilities while still controlling costs, and is one of the AVR family models with the richest storage resources.
AVR EA Series: As the new flagship of the AVR family, it represents the highest level of 8-bit AVR architecture, significantly improving processing performance and peripheral functions while maintaining excellent energy efficiency.
AVR DU Series: Innovative products designed for ultra-low power consumption and autonomous operation, incorporating Microchip's latest picoPower technology.
These series collectively form a complete AVR microcontroller ecosystem, enabling developers to find the optimal balance between performance, power consumption, cost, and functional integration based on project requirements.
AVR SD Series: A cost-effective choice for entry-level applications
In the highly competitive embedded market, the AVR SD series stands out with its ‘sufficient, user-friendly, and low-cost’ characteristics, making it an ideal choice for entry-level applications. As a microcontroller designed by Microchip for budget-sensitive applications, the AVR SD series retains the ease of use and low power consumption of the traditional AVR core while deeply optimising the cost structure, making it particularly suitable for mass-produced consumer electronics.
In terms of core technical specifications, the AVR SD series features a high-performance 8-bit AVR core supporting a maximum operating frequency of 20MHz, balancing real-time control and energy efficiency requirements. Storage configurations are flexible, offering flash memory options ranging from 4KB to 32KB to accommodate applications ranging from simple control to moderate logic complexity. In terms of peripheral integration, the series is equipped with a 12-bit ADC, multiple PWM outputs, UART, SPI/I²C interfaces, and an analog comparator, significantly simplifying circuit design and reducing overall BOM costs.
One of the most notable advantages of the AVR SD series is its ultra-low power consumption design, with sleep mode power consumption as low as 0.1μA, effectively extending the battery life of battery-powered devices. This feature makes it ideal for high-volume applications such as smart toys, remote controls, and small appliance control boards that rely on battery power. Additionally, the series is fully compatible with Microchip's mature toolchain (such as Atmel Studio and MPLAB® X IDE), significantly lowering the development barrier and shortening time-to-market.
In practical applications, the AVR SD series has been widely adopted across multiple fields:
Consumer electronics: cost-sensitive, high-volume products such as smart toys, remote controls, and small appliance control boards
Industrial control: scenarios requiring reliability and low power consumption, such as simple sensor nodes, motor drives, and LED lighting systems
IoT endpoints: low-complexity wireless devices and environmental monitoring modules as edge node devices
Education: teaching applications such as electronic training kits and maker project development platforms
AVR DD Series: The Perfect Combination of Small Packaging and High Integration
The AVR DD series is the perfect combination of small package size and high integration, making it particularly suitable for space-constrained applications. The series offers small package options ranging from 14 to 32 pins, integrating a wealth of peripheral resources into an extremely small board area, including a 12-bit ADC, analog comparator, multiple PWM outputs, and USART interface, providing great convenience for compact device design.
A key innovative feature of the AVR DD Series is its ‘peripheral interconnect’ functionality, which enables direct interaction between different peripherals without CPU intervention, significantly enhancing real-time response capabilities. This architectural design allows ADC sampling results to directly trigger PWM output adjustments or comparator state changes to automatically initiate timers, all without CPU involvement. This enables rapid response while maintaining low power consumption. Such autonomous operation capabilities are particularly critical for portable devices requiring real-time control.
In terms of power management, the AVR DD series supports operating voltages as low as 1.8V, combined with Microchip's picoPower technology, making it an ideal choice for battery-powered portable devices. The series also offers multiple low-power modes, allowing developers to finely balance response speed and power consumption according to application requirements, maximising battery life.
The AVR DD series excels in smart home and IoT applications, particularly in the following areas:
Smart home sensor nodes: such as temperature and humidity sensors, door and window switch sensors, etc., whose compact size and low power consumption make them ideal for distributed deployment
Micro IoT devices: space-constrained wireless connectivity devices, such as Bluetooth beacons, low-power LoRa nodes, etc.
Wearable devices: products like watches and fitness trackers that are highly sensitive to size and power consumption.
Portable medical devices: applications requiring miniaturisation and long battery life, such as blood glucose monitors and portable monitoring devices.
AVR DB Series: Professional solutions for motor control and power conversion
The AVR DB Series is based on the standard AVR architecture and enhanced with motor control-specific peripherals, making it an ideal choice for applications such as brushless DC (BLDC) motor drives, digital power conversion, and industrial lighting control.
The technical highlights of the AVR DB series lie in its peripheral configuration optimised for motor control. The series features a high-resolution PWM module (up to 144MHz) for precise motor drive signal generation. Window watchdog timers and hardware overcurrent protection enhance system reliability, preventing damage caused by motor malfunction. Notably, the AVR DB series offers 5V voltage-resistant I/O ports, demonstrating stronger interference resistance in industrial environments, which is critical for applications such as factory automation where electrical noise is present.
In terms of algorithm acceleration, the AVR DB series significantly improves the execution efficiency of closed-loop control algorithms through hardware-accelerated mathematical operations. This hardware acceleration enables complex algorithms like field-oriented control (FOC) to run efficiently on an 8-bit MCU, which traditionally required more expensive 32-bit processors. This feature gives the AVR DB series a unique advantage in cost-sensitive motor control applications.
The AVR DB series has been successfully applied in multiple professional fields:
Brushless DC (BLDC) motor drives: fan and pump drives in home appliances, as well as high-efficiency motor control in power tools
Digital power conversion: AC-DC, DC-DC converters, solar inverters, and other applications requiring precise power control
Industrial lighting control: LED drives, dimming systems, and other applications requiring precise PWM control
Home appliance control: Motor control systems in home appliances such as washing machines and refrigerator compressors
AVR EB and AVR EA series: Advanced options for high performance and security
The AVR EB and AVR EA series represent high-end solutions for the 8-bit AVR architecture, offering significant improvements in performance, storage capacity, and security.
The AVR EB series is positioned as a high-performance 8-bit solution, suitable for applications requiring strong processing capabilities while still needing to control costs. This series offers up to 128KB of flash memory and 16KB of SRAM, making it one of the most memory-rich models in the AVR family, capable of handling more complex application logic and larger data buffering requirements. Its innovative dual-zone flash memory design supports secure wireless firmware updates during application programming (IAP), a feature that makes it highly sought after in IoT edge devices. The AVR EB series also features an advanced event system and multi-channel DMA controller, significantly reducing CPU load and enabling efficient handling of complex tasks such as multi-sensor data fusion, demonstrating unique advantages in applications like smart home gateways and industrial sensor hubs.
The AVR EA series represents the pinnacle of 8-bit AVR architecture and is the next-generation flagship product in the AVR family. While maintaining excellent energy efficiency, this series significantly enhances processing performance and peripheral functionality. Its core innovations include a hardware multiplier, enhanced analogue front end (up to 14-bit ADC), and advanced encryption engine, enabling it to handle applications with high performance and security requirements. The AVR EA series' hardware encryption acceleration capabilities are particularly suited for applications requiring secure boot and data encryption, such as medical devices, payment terminals, and industrial communication modules. Adoption of the AVR EA series is growing rapidly in these fields.
The primary application scenarios for both series include:
IoT edge devices: Smart terminals requiring local data processing capabilities and secure wireless updates
Industrial communication modules: Fieldbus gateways, protocol converters, and other devices requiring reliability and security
Medical electronic devices: Portable monitors, medical sensors, and other applications with high requirements for data security and accuracy
Payment terminals: POS devices, mobile payment terminals, and other devices requiring encryption functionality and tamper-resistant design
Smart home gateways: Home control centres requiring connectivity with multiple devices and complex logic processing
AVR DU Series: Innovative design with ultra-low power consumption and autonomous operation
The AVR DU Series adopts Microchip's latest picoPower technology, optimising power consumption to the extreme while maintaining processing capabilities. This series represents the pinnacle of energy efficiency in the AVR architecture, providing unprecedented battery life for battery-powered and energy harvesting devices.
The most notable feature of the AVR DU series is its autonomous peripheral system, which allows peripherals such as analogue comparators, ADCs, and timers to operate independently and trigger each other even when the CPU is in sleep mode, enabling true ‘set-and-forget’ operation. This architectural design allows the system to continuously monitor environmental parameters at extremely low power levels, waking the main CPU only when an event requiring processing is detected, thereby significantly reducing overall power consumption. In practical applications, this autonomous operation mode can extend battery life by several times, making it particularly suitable for applications that require long-term deployment and where battery replacement is difficult.
In terms of performance characteristics, while the AVR DU series prioritises low-power design, it still maintains sufficient processing power to handle common tasks. The series offers a flexible clock system supporting a working frequency range from 32 kHz to 20 MHz, allowing developers to dynamically adjust the balance between performance and power consumption based on task requirements. Rich peripheral integration, including a 12-bit ADC, analogue comparator, and multiple communication interfaces, enables direct connection to sensors and wireless modules, reducing the number of external components and further lowering system power consumption and PCB area.
The AVR DU series has been successfully applied in multiple ultra-low-power fields:
Energy harvesting devices: solar, vibration, or thermoelectric energy harvesting systems requiring extremely low operating power consumption
Long-term deployed wireless sensor nodes: environmental monitoring, agricultural sensing, and other applications requiring battery life spanning several years
Wearable devices: smartwatches, health monitoring devices, and other products sensitive to size and power consumption
Smart metering devices: water meters, gas meters, and other metering terminals requiring ultra-long battery life
Remote monitoring devices: infrastructure monitoring, wildlife tracking, and other scenarios where frequent battery replacement is impractical
