Microchip Technology ATMEGA324P-20MUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.99 | $5.99 |
| 15+ | $5.80 | $87.00 |
| 25+ | $5.67 | $141.75 |
| 50+ | $5.36 | $268.00 |
| 100+ | $4.73 | $473.00 |
| N+ | $0.95 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | NULL |
| 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 | 32 |
| 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) | 2.7V ~ 5.5V |
| Data Converters | A/D 8x10b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 44-VQFN (7x7) |
| Package / Case | 44-VFQFN Exposed Pad |
| ROHS |
The ATMEGA324P-20MUR from Microchip Technology is a powerful 8-bit AVR microcontroller designed for high-performance and low-power applications. Running at up to 20MHz with a supply range of 2.7V to 5.5V, it offers a balanced mix of speed and efficiency. The device features 32KB of flash memory and 2KB of SRAM, along with essential peripherals like PWM, brown-out detection, and a watchdog timer. Housed in a compact 44-VFQFN package, it operates reliably from -40°C to 85°C, making it a versatile choice for industrial, automotive, and consumer electronics.
- High Throughput AVR Core: Most instructions execute in a single clock cycle, achieving up to 20 MIPS at 20MHz for responsive control.
- Flexible Power Options: Wide 2.7V-5.5V range supports both battery and regulated supplies without extra level shifting.
- Large Memory Footprint: 32KB flash and 2KB SRAM accommodate complex firmware and data buffering.
- Robust Protection Features: Brown-out detection and watchdog timer enhance system reliability in noisy environments.
Industrial Automation Controllers
With 20MHz speed, 32KB flash, and robust peripherals, this MCU can handle PLC-like logic control, sensor reading, and actuator driving in factory automation.
Smart Sensor Nodes
The 2.7V-5.5V range and low-power sleep modes make it suitable for battery-powered IoT sensors that periodically wake to transmit data.
Robotics & Motor Control
Multiple PWM channels and a fast AVR core enable precise control of servo motors and DC motors in hobbyist and educational robots.
Automotive Aftermarket Modules
Operating from -40°C to 85°C, it can be used in car alarm systems, window controllers, or lighting modules where reliability is key.
Medical Monitoring Equipment
The integrated brown-out detector ensures stable operation during power fluctuations, critical for patient monitoring devices.
Consumer Appliances
From washing machines to smart coffee makers, the ATMEGA324P provides the processing power and I/O flexibility needed for user interfaces and control loops.
- Q: What is the maximum clock speed?
- A: The ATMEGA324P-20MUR operates at up to 20MHz, providing high throughput for AVR-based applications.
- Q: What is the supply voltage range?
- A: It supports 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: How much flash memory does it have?
- A: It includes 32KB of in-system programmable flash, organized as 16K x 16 bits.
- Q: What package is this variant?
- A: This is the 44-VFQFN Exposed Pad package, ideal for space-constrained designs with good thermal dissipation.
- Q: Does it have a brown-out detector?
- A: Yes, it features brown-out detection and reset, along with POR, PWM, and WDT.
- Q: What is the maximum clock speed?
- A: The ATMEGA324P-20MUR operates at up to 20MHz, providing high throughput for AVR-based applications.
- Q: What is the supply voltage range?
- A: It supports 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems.
- Q: How much flash memory does it have?
- A: It includes 32KB of in-system programmable flash, organized as 16K x 16 bits.
- Q: What package is this variant?
- A: This is the 44-VFQFN Exposed Pad package, ideal for space-constrained designs with good thermal dissipation.
- Q: Does it have a brown-out detector?
- A: Yes, it features brown-out detection and reset, along with POR, PWM, and WDT.

ATMEGA324P-20MUR.pdf