Microchip Technology ATMEGA324PB-MN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.05 | $2.05 |
| 15+ | $1.99 | $29.85 |
| 25+ | $1.94 | $48.50 |
| 50+ | $1.84 | $92.00 |
| 100+ | $1.62 | $162.00 |
| N+ | $0.32 | 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 | 39 |
| 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 | 44-VQFN (7x7) |
| Package / Case | 44-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA324PB-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 a rich set of peripherals including multiple PWM channels, analog comparators, and a 10-bit ADC. The 44-VFQFN package offers a compact footprint with exposed pad for thermal management, making it ideal for industrial, automotive, and IoT edge applications.
- Extended Temperature Range: -40°C to 105°C ensures reliable operation in harsh automotive and industrial environments.
- Low-Voltage Operation: 1.8V minimum supply enables direct battery operation without additional regulators.
- High Integration: On-chip brown-out detection, POR, and watchdog reduce external component count and BOM cost.
- Scalable Memory: 32KB flash provides ample code space for complex firmware while 2KB SRAM supports moderate data buffering.
Industrial Automation Controllers
The 32KB flash and 20MHz AVR core handle complex logic sequences and real-time I/O control in PLCs and motor controllers, with the 2KB SRAM buffering sensor data.
Battery-Powered Sensor Nodes
With a 1.8V minimum supply and multiple sleep modes, the ATMEGA324PB-MN extends battery life in wireless environmental monitoring systems while maintaining fast wake-up times.
Automotive Body Electronics
Operating up to 105°C, this MCU suits under-hood applications like window lift controllers or seat position modules, where the PWM channels drive DC motors smoothly.
Medical Monitoring Devices
The integrated brown-out detector and watchdog timer ensure reliable operation in portable patient monitors, preventing system lockups during voltage dips.
Smart Home Gateways
Its rich peripheral set, including USART, SPI, and I2C, enables seamless communication with Zigbee or Wi-Fi modules for centralized home automation hubs.
Precision Agriculture Equipment
The 10-bit ADC and PWM outputs allow precise control of irrigation valves and nutrient dosing pumps, with the wide voltage range accommodating varying power sources.
- Q: What is the operating voltage range of the ATMEGA324PB-MN?
- A: The ATMEGA324PB-MN operates from 1.8V to 5.5V, making it suitable for battery-powered and 3.3V/5V systems.
- Q: What is the maximum clock speed?
- A: It supports up to 20MHz, providing a balanced performance for general-purpose embedded control.
- Q: How much flash memory does it have?
- A: It features 32KB of in-system programmable flash, along with 2KB SRAM for data storage.
- Q: What package is available?
- A: It comes in a 44-VFQFN exposed pad package, ideal for compact PCB designs with good thermal dissipation.
- Q: Does it include analog peripherals?
- A: Yes, it includes multiple PWM channels, analog comparators, and a 10-bit ADC for sensor interfacing.
- Q: What is the operating voltage range of the ATMEGA324PB-MN?
- A: The ATMEGA324PB-MN operates from 1.8V to 5.5V, making it suitable for battery-powered and 3.3V/5V systems.
- Q: What is the maximum clock speed?
- A: It supports up to 20MHz, providing a balanced performance for general-purpose embedded control.
- Q: How much flash memory does it have?
- A: It features 32KB of in-system programmable flash, along with 2KB SRAM for data storage.
- Q: What package is available?
- A: It comes in a 44-VFQFN exposed pad package, ideal for compact PCB designs with good thermal dissipation.
- Q: Does it include analog peripherals?
- A: Yes, it includes multiple PWM channels, analog comparators, and a 10-bit ADC for sensor interfacing.

ATMEGA324PB-MN.pdf