ATMEGA328-MU
8 Bit MCU, Low Power High Performance, AVR ATmega Family ATmega328 Series Microcontrollers, AVR

| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | ATMEGA328-MUCopy |
| Manufacturer Standard Lead Time | 22 weeks |
| Order Code | 2443177 |
| Product Range | AVR ATmega Family ATmega328 Series Microcontrollers |
| Your Part Number | |
| Technical Datasheet |
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| Quantity | Price |
|---|---|
| 1+ | HK$19.900 |
| 25+ | HK$18.170 |
| 100+ | HK$16.530 |
| 490+ | HK$16.200 |
Product Information
| Manufacturer | MICROCHIP |
|---|---|
| Manufacturer Part No | ATMEGA328-MUCopy |
| Manufacturer Standard Lead Time | 22 weeks |
| Order Code | 2443177 |
| Product Range | AVR ATmega Family ATmega328 Series Microcontrollers |
| Technical Datasheet | |
| Product Range | AVR ATmega Family ATmega328 Series Microcontrollers |
| Device Core | AVR |
| Operating Frequency Max | 20MHz |
| Program Memory Size | 32KB |
| No. of Pins | 32Pins |
| IC Case / Package | VQFN |
| No. of I/O's | 23I/O's |
| Interfaces | I2C, SPI, USART |
| RAM Memory Size | 2KB |
| ADC Channels | 8Channels |
| ADC Resolution | 10Bit |
| Supply Voltage Min | 1.8V |
| 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 | ATmega328 |
| Qualification | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (04-Feb-2026) |
Product Overview
The ATMEGA328-MU is a 8-bit high-performance AVR RISC-based Microcontroller combines 32kB ISP flash memory with read-while-write capabilities, 1kB EEPROM, 2kB SRAM, 23 general purpose I/O lines, 32 general purpose working registers, three flexible timer/counters with compare modes, internal and external interrupts, serial programmable USART, a byte-oriented 2-wire serial interface, SPI serial port, 6-channel 10-bit A/D converter, programmable watchdog timer with internal oscillator and five software selectable power saving modes. The device operates between 1.8 to 5.5V. By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.
- Advanced RISC architecture - On-chip 2-cycle multiplier
- High endurance, non-volatile memory segments
- QTouch® library support - Capacitive touch buttons, sliders and wheels
- Peripheral features - Real time counter with separate oscillator
- Power-on reset (POR) and programmable brown-out detection
- Internal calibrated RC oscillator
- External and internal interrupt sources
- Six sleep modes - Idle, ADC noise reduction, power-save, power-down, standby and extended standby
Applications
Industrial, Computers & Computer Peripherals
Technical Specifications
| Product Range | AVR ATmega Family ATmega328 Series Microcontrollers |
|---|---|
| Operating Frequency Max | 20MHz |
| No. of Pins | 32Pins |
| No. of I/O's | 23I/O's |
| RAM Memory Size | 2KB |
| 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 | AVR |
|---|---|
| Program Memory Size | 32KB |
| IC Case / Package | VQFN |
| Interfaces | I2C, SPI, USART |
| ADC Channels | 8Channels |
| Supply Voltage Min | 1.8V |
| Operating Temperature Min | -40°C |
| IC Mounting | Surface Mount |
| MCU Series | ATmega328 |
| MSL | MSL 1 - Unlimited |
Technical Docs (3)
Associated Products
2 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): | .000454 |
