Microchip Technology ATMEGA328-MMHR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.49 | $2.49 |
| 15+ | $2.41 | $36.15 |
| 25+ | $2.36 | $59.00 |
| 50+ | $2.23 | $111.50 |
| 100+ | $1.97 | $197.00 |
| N+ | $0.39 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20MHz |
| Connectivity | I2C, SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 23 |
| Program Memory Size | 32KB (16K x 16) |
| Program Memory Type | FLASH |
| EEPROM Size | 1K x 8 |
| RAM Size | 2K x 8 |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 28-VQFN (4x4) |
| Package / Case | 28-VFQFN Exposed Pad |
| ROHS |  |
The Microchip ATMEGA328-MMHR is a popular 8-bit AVR microcontroller running at 20MHz. It features 32KB flash and 2KB RAM, operating from 1.8V to 5.5V. The 28-VFQFN exposed pad package includes brown-out detection, POR, PWM, and WDT. Known for its simplicity and low cost, it is widely used in hobbyist and commercial embedded projects.
- Wide voltage range (1.8V-5.5V) supports battery and USB power sources.
- 20MHz AVR core provides sufficient performance for most 8-bit applications.
- Industry-standard architecture with extensive community support and resources.
- Low power consumption extends battery life in portable designs.
Arduino-Compatible Prototypes
The 20MHz AVR core and 32KB flash make it ideal for rapid prototyping of IoT devices and educational kits.
Sensor Nodes
Low voltage operation (1.8V) and low power modes enable battery-powered environmental monitoring for years.
Motor Control
PWM channels and WDT provide reliable speed control for small DC motors in consumer appliances.
Home Automation
With 2KB RAM, it handles simple automation tasks like lighting control and thermostat management.
Wearable Devices
The compact 28-VFQFN package and 1.8V operation suit fitness trackers and smart watches.
Agricultural Sensors
Wide voltage range and -40°C to 85°C operation support soil moisture and weather monitoring in remote fields.
- Q: What is the core processor?
- A: It uses the AVR core running at up to 20MHz.
- Q: What is the flash memory size?
- A: It has 32KB of flash memory.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V.
- Q: What package is this?
- A: It comes in a 28-VFQFN exposed pad package.
ATMEGA328-MMHR.pdf
- Q: What is the core processor?
- A: It uses the AVR core running at up to 20MHz.
- Q: What is the flash memory size?
- A: It has 32KB of flash memory.
- Q: What is the supply voltage range?
- A: It operates from 1.8V to 5.5V.
- Q: What package is this?
- A: It comes in a 28-VFQFN exposed pad package.
