Microchip Technology ATMEGA328PB-MN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.48 | $1.48 |
| 15+ | $1.44 | $21.60 |
| 25+ | $1.40 | $35.00 |
| 50+ | $1.33 | $66.50 |
| 100+ | $1.17 | $117.00 |
| N+ | $0.23 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega, Functional Safety (FuSa) |
| Packaging | Tray | |
| 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 | 27 |
| 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 ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 32-VFQFN (5x5) |
| Package / Case | 32-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA328PB-MN is a high-performance 8-bit AVR microcontroller with 32KB flash and 2KB SRAM. Operating from 1.8V to 5.5V at up to 20MHz, it integrates brown-out detection, power-on reset, PWM, and watchdog timer. The compact 32-VFQFN package suits space-constrained embedded designs.
- Ultra-low power consumption: 1.8V operation extends battery life in portable devices.
- High integration: Built-in POR, BOD, and WDT reduce external component count.
- Wide temperature range: -40°C to 105°C supports industrial environments.
- Compact QFN package: Saves PCB area for miniaturized products.
IoT Sensor Nodes
Low 1.8V operation and multiple sleep modes enable long battery life for wireless environmental monitoring.
Motor Control
On-chip PWM channels and 20MHz AVR core provide precise timing for brushless DC motor drivers.
Industrial Automation
Wide temperature range (-40°C to 105°C) and brown-out detection ensure reliable operation in harsh factory floors.
Portable Medical Devices
Low power consumption and small QFN package fit compact glucose meters or pulse oximeters.
Smart Home Controllers
Rich GPIO and serial interfaces (UART/SPI/I2C) allow integration with Zigbee or BLE modules for lighting and HVAC control.
Automotive Aftermarket
Robust POR and WDT protect firmware integrity in car alarm or telematics add-on modules.
- Q: What is the operating voltage range?
- A: 1.8V to 5.5V, suitable for battery and 3.3V/5V systems.
- Q: What is the maximum clock speed?
- A: 20MHz at 4.5V-5.5V.
- Q: How much flash and SRAM does it have?
- A: 32KB flash and 2KB SRAM.
- Q: What package is available?
- A: 32-VFQFN exposed pad.
- Q: Does it include a watchdog timer?
- A: Yes, WDT is integrated.
- Q: What is the operating voltage range?
- A: 1.8V to 5.5V, suitable for battery and 3.3V/5V systems.
- Q: What is the maximum clock speed?
- A: 20MHz at 4.5V-5.5V.
- Q: How much flash and SRAM does it have?
- A: 32KB flash and 2KB SRAM.
- Q: What package is available?
- A: 32-VFQFN exposed pad.
- Q: Does it include a watchdog timer?
- A: Yes, WDT is integrated.

ATMEGA328PB-MN.pdf