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Microchip 8-bit AVR Microcontroller ATMEGA16U4-AU, 16 MHz, 16kB Flash, 44-Pin TQFP
Specifications
| Country of Origin | India |
|---|---|
| Brand | Microchip |
| Height | 1.05mm |
| Length | 10.1mm |
| Model | ATMEGA16U4-AU |
| Width | 10.1mm |
| Mount Type | Surface |
| Series | ATMEGA16U4 |
| Maximum Operating Temperature | 85°C |
| Package Type | TQFP |
| Minimum Operating Temperature | -40°C |
| Ram size | 512kB |
| Interface Type | SPI, USART, USB |
| Standards/Approvals | RoHS |
| Pin Count | 44 |
| Maximum Supply Voltage | 5.5V |
| Minimum Supply Voltage | 2.7V |
| Device Core | AVR |
| Program Memory Size | 16kB |
| Maximum Clock Frequency | 16MHz |
| Number of Programmable I/Os | 26 |
| Analogue Comparators | 1 |
| Number of Timers | 3 |
| Instruction Set Architecture | RISC |
| ADCs | 12 x 10 Bit |
| Program Memory Type | FLASH |
| Write/Erase Cycles | 10,000 Flash/100,000 EEPROM |
Key Features
- Operates at up to 16 MHz clock frequency for fast processing.
- Features 16kB in-system programmable FLASH memory for advanced code flexibility.
- Built with advanced AVR RISC architecture providing 135 powerful instructions.
- Includes 512 bytes internal EEPROM and 2.5KB internal SRAM for robust data management.
- Supports a wide input voltage range from 2.7V to 5.5V, enhancing application compatibility.
- Equipped with 12-channel 10-bit ADC and 3 timers for precision measurement and control.
- Surface-mount 44-pin TQFP package streamlines integration on modern PCBs.
Product Description
Microchip ATMEGA16U4-AU 8-bit AVR microcontroller is engineered for embedded applications requiring performance, reliability, and flexibility. Integrating a 16 MHz maximum clock frequency and 16kB FLASH program memory, this device is capable of executing up to 16 MIPS throughput, delivering high-speed operation for complex control tasks in industrial or consumer electronic systems.
This microcontroller employs advanced RISC architecture, featuring 135 powerful instructions - most executing in a single clock cycle. The processor incorporates 32 general-purpose working registers and a 2-cycle hardware multiplier for efficient arithmetic across varied workloads.
Non-volatile memory is robust: 16kB FLASH for user application code and boot loader, 2.5KB internal SRAM for dynamic data, plus a 512-byte EEPROM for persistent storage. The design enables up to 10,000 FLASH and 100,000 EEPROM write/erase cycles, with retention up to 100 years at 25°C, ensuring longevity for mission-critical applications.
Integrated peripherals include SPI, USART, USB 2.0 full-speed/low-speed device connectivity, 12-channel 10-bit ADC for precise analog signal conversion, three timers, and a single analog comparator. The package features 26 programmable I/O pins offering flexible interfacing for sensors, actuators, or external modules.
Operating voltage ranges from 2.7V to 5.5V, and the microcontroller tolerates temperatures from -40°C to 85°C, making it suitable for industrial, laboratory, and commercial environments. Surface-mount TQFP with a compact 10.1 mm x 10.1 mm x 1.05 mm form factor optimizes PCB footprint for embedded control systems.
Applications include industrial control, laboratory instrumentation, automation, robotics, consumer electronics, and custom embedded systems. The ATMEGA16U4-AU is ideal for projects demanding reliable high-speed processing, USB interfacing, integrated ADCs, and robust RISC performance in a space-efficient package.
Discover more Microcontrollers and embedded solutions in EnvMart's Electronics & Electricals section for innovative industrial and commercial projects.
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Frequently Asked Questions
The maximum clock frequency of this microcontroller is 16 MHz, allowing for fast processing capabilities.
The ATMEGA16U4-AU features a program memory size of 16kB, which is in-system programmable FLASH memory.
This microcontroller operates within a voltage range of 2.7V to 5.5V, enhancing its compatibility with various applications.
It includes 26 programmable I/O pins, providing flexible interfacing options for various sensors and actuators.
This model supports SPI, USART, and USB interfaces, facilitating communication with other devices.
The microcontroller can operate within a temperature range of -40°C to 85°C, making it suitable for various environments.
The ATMEGA16U4-AU is housed in a surface-mount TQFP package with dimensions of 10.1 mm x 10.1 mm x 1.05 mm.
It is equipped with a 12-channel 10-bit ADC for precise analog signal conversion.
This microcontroller has an internal RAM size of 512 bytes, which is used for dynamic data storage.
The FLASH memory supports up to 10,000 write/erase cycles, while the EEPROM can handle up to 100,000 cycles.
This microcontroller is suitable for applications in industrial control, laboratory instrumentation, automation, robotics, and consumer electronics.
It complies with RoHS standards, ensuring it meets environmental regulations.
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