Microchip Technology ATMEGA324P-20AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.83 | $5.83 |
| 15+ | $5.65 | $84.75 |
| 25+ | $5.53 | $138.25 |
| 50+ | $5.22 | $261.00 |
| 100+ | $4.61 | $461.00 |
| N+ | $0.92 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| 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 | 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-TQFP (10x10) |
| Package / Case | 44-TQFP |
| ROHS |
The Microchip ATMEGA324P-20AU is a high-performance, low-power 8-bit AVR microcontroller. It operates at up to 20MHz and supports a wide voltage range of 2.7V to 5.5V, offering design flexibility. With 32KB of flash memory and 2K x 8 RAM, it is well-suited for a variety of applications. The device includes a rich set of peripherals such as PWM, Brown-out Detect, and a Watchdog Timer. Housed in a 44-TQFP package, it is a reliable and popular choice for industrial and consumer applications.
- Wide Voltage Range: Operates from 2.7V to 5.5V, simplifying power supply design and ensuring compatibility with legacy 5V logic.
- High Speed at Low Power: Achieves 20MHz performance while maintaining efficient power consumption for battery-operated devices.
- Proven AVR Core: The industry-standard AVR architecture offers a rich instruction set and easy-to-use development tools.
- Integrated Safety Features: Includes BOD and WDT to enhance system reliability in noisy environments.
Automotive Body Electronics
With a 5V operation and robust I/O, it can directly interface with automotive relays and switches for window lift and mirror control modules.
Industrial Process Control
Its 20MHz speed and PWM channels allow for precise control of pumps and valves in PLCs and industrial sensors.
Home Automation Hubs
The wide voltage range simplifies power supply design, and its rich timer peripherals are ideal for managing Zigbee or Z-Wave radio modules.
Consumer Appliances
From washing machines to microwave ovens, the ATMEGA324P's reliability and 5V tolerance make it a cost-effective choice for motor and display control.
Test and Measurement Equipment
Its 10-bit ADC and fast wake-up times enable accurate data acquisition in handheld multimeters and frequency counters.
Security Systems
The device's low-power sleep modes and wake-on-interrupt capability are perfect for battery-powered PIR motion detectors and alarm keypads.
- Q: What is the maximum clock speed?
- A: It supports up to 20MHz, providing a good balance of speed and power consumption.
- Q: What is the operating voltage range?
- A: The device operates from 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 has 32KB of in-system programmable flash memory.
- Q: Does it have a brown-out detector?
- A: Yes, it includes a programmable Brown-out Detection circuit for reliable reset.
- Q: What is the package type?
- A: It is available in a 44-pin TQFP package.
- Q: What is the maximum clock speed?
- A: It supports up to 20MHz, providing a good balance of speed and power consumption.
- Q: What is the operating voltage range?
- A: The device operates from 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 has 32KB of in-system programmable flash memory.
- Q: Does it have a brown-out detector?
- A: Yes, it includes a programmable Brown-out Detection circuit for reliable reset.
- Q: What is the package type?
- A: It is available in a 44-pin TQFP package.

ATMEGA324P-20AU.pdf