ATMEGA16U4-AU
MCU-Application Specific 8BIT, MEGAAVR, 16MHz, 2.5 KB RAM/16 KB Program, 2.7V-5.5Vin, TQFP-44

| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | ATMEGA16U4-AUCopy |
| Manufacturer Standard Lead Time | 8 weeks |
| Order Code | 1748521 |
| Product Range | AVR ATmega Family ATmega16 Series Microcontrollers |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | Php316.800 |
| 25+ | Php288.900 |
| 100+ | Php262.400 |
| 160+ | Php257.400 |
Product Information
| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | ATMEGA16U4-AUCopy |
| Manufacturer Standard Lead Time | 8 weeks |
| Order Code | 1748521 |
| Product Range | AVR ATmega Family ATmega16 Series Microcontrollers |
| Technical Datasheet | |
| Product Range | AVR ATmega Family ATmega16 Series Microcontrollers |
| Device Core | megaAVR |
| Operating Frequency Max | 16MHz |
| Program Memory Size | 16KB |
| No. of Pins | 44Pins |
| IC Case / Package | TQFP |
| No. of I/O's | 26I/O's |
| Interfaces | I2C, SPI, UART, USART |
| RAM Memory Size | 2.5KB |
| ADC Channels | 12Channels |
| ADC Resolution | 10Bit |
| Supply Voltage Min | 2.7V |
| Supply Voltage Max | 5.5V |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| IC Mounting | Surface Mount |
| MCU Family | AVR ATmega |
| MCU Series | ATmega16 |
| Qualification | - |
| MSL | MSL 3 - 168 hours |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
The ATMEGA16U4-AU is a 8-bit low power high performance AVR RISC-based Microcontroller features16kB ISP flash memory, 8kB boot code section, 2.5kB SRAM, 1024B EEPROM, USB 2.0 full-speed/low speed device, high-speed PWMs, 12-channel 10-bit A/D-converter and JTAG interface for on-chip-debug. The device achieves up to 16 MIPS throughput at 16MHz, 2.7 to 5.5V operation. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, allowing you to optimize power consumption versus processing speed. The AVR core combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers.
- Advanced RISC architecture - On-chip 2-cycle multiplier
- Non-volatile program and data memories
- JTAG (IEEE 1149.1 compliant) interface
- USB 2.0 full-speed/low speed device module with interrupt on transfer completion
- Peripheral features - Four 8-bit PWM channels
- Power-on reset (POR) and programmable brown-out detection
- Internal 8MHz calibrated oscillator
- Internal clock prescaler and on-the-fly clock switching (Int RC/Ext Osc)
- External and internal interrupt sources
- Six sleep modes - Idle, ADC noise reduction, power-save, power-down, standby and extended standby
- All I/O combine CMOS outputs and LVTTL inputs
- 26 Programmable I/O lines
- -40 to +85°C Industrial operating temperature range
Applications
Industrial, Computers & Computer Peripherals
Warnings
Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.
Technical Specifications
| Product Range | AVR ATmega Family ATmega16 Series Microcontrollers |
|---|---|
| Operating Frequency Max | 16MHz |
| No. of Pins | 44Pins |
| No. of I/O's | 26I/O's |
| RAM Memory Size | 2.5KB |
| ADC Resolution | 10Bit |
| Supply Voltage Max | 5.5V |
| Operating Temperature Max | 85°C |
| MCU Family | AVR ATmega |
| Qualification | - |
| SVHC | No SVHC (04-Feb-2026) |
| Device Core | megaAVR |
|---|---|
| Program Memory Size | 16KB |
| IC Case / Package | TQFP |
| Interfaces | I2C, SPI, UART, USART |
| ADC Channels | 12Channels |
| Supply Voltage Min | 2.7V |
| Operating Temperature Min | -40°C |
| IC Mounting | Surface Mount |
| MCU Series | ATmega16 |
| MSL | MSL 3 - 168 hours |
Technical Docs (3)
Associated Products
4 Products Found
Legislation and Environmental
| Country of Origin: Country in which last significant manufacturing process was carried outCountry of Origin: | United States Country in which last significant manufacturing process was carried out |
|---|---|
| Tariff No: | 85423190 |
| US ECCN: | EAR99 |
| EU ECCN: | NLR |
| RoHS Compliant: | Yes RoHS |
| RoHS Phthalates Compliant: | Yes RoHS |
| SVHC: | No SVHC (04-Feb-2026) |
| Download Product Compliance Certificate | Product Compliance Certificate |
| Weight (kg): | .06441 |
