Microchip Technology ATMEGA324PA-AU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.79 | $4.79 |
| 15+ | $4.64 | $69.60 |
| 25+ | $4.54 | $113.50 |
| 50+ | $4.28 | $214.00 |
| 100+ | $3.78 | $378.00 |
| N+ | $0.76 | 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) | 1.8V ~ 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 ATMEGA324PA-AU is a high-performance 8-bit AVR microcontroller with 32KB flash memory and 2KB SRAM. Operating from 1.8V to 5.5V and up to 20MHz, it integrates brown-out detection, power-on reset, PWM channels, and a watchdog timer. Housed in a compact 44-TQFP package, it suits industrial and consumer applications requiring robust I/O and low power consumption.
- Wide voltage range (1.8V-5.5V) simplifies power supply design and supports battery operation.
- 20MHz performance with AVR core delivers efficient single-cycle instruction execution.
- Integrated brown-out detection and watchdog timer enhance system reliability in harsh environments.
- 44-pin TQFP package balances I/O count with small footprint for space-constrained PCBs.
Industrial Control Systems
With 32KB flash and 2KB SRAM, the ATMEGA324PA-AU handles complex control loops and sensor interfacing in PLCs and motor controllers, operating reliably across -40°C to 85°C.
Automotive Aftermarket Modules
Its 1.8V-5.5V supply range allows direct connection to automotive battery systems without complex level shifting, simplifying CAN/LIN gateway designs.
Smart Sensor Nodes
The integrated PWM and analog comparators enable precise signal conditioning for temperature, pressure, and flow sensors in IoT edge devices.
Battery-Powered Medical Devices
Low-power sleep modes and wide voltage tolerance extend battery life in portable glucose meters and pulse oximeters.
Home Automation Hubs
Multiple communication interfaces (UART, SPI, I2C) allow seamless integration with Zigbee, Z-Wave, and Wi-Fi modules for smart home controllers.
Data Logging Equipment
The 2KB SRAM buffers sensor data before writing to external EEPROM or SD cards, while the WDT ensures recovery from software hangs in remote logging stations.
- Q: What is the maximum clock speed of the ATMEGA324PA-AU?
- A: The ATMEGA324PA-AU operates at up to 20MHz with a supply voltage range of 1.8V to 5.5V.
- Q: How much flash memory does this MCU have?
- A: It features 32KB of in-system programmable flash memory (16K x 16 bits).
- Q: What package is the ATMEGA324PA-AU available in?
- A: It comes in a 44-pin TQFP package, suitable for surface-mount assembly.
- Q: Does it include a watchdog timer?
- A: Yes, it includes a Watchdog Timer (WDT) along with Brown-out Detection and Power-on Reset.
ATMEGA324PA-AU.pdf
- Q: What is the maximum clock speed of the ATMEGA324PA-AU?
- A: The ATMEGA324PA-AU operates at up to 20MHz with a supply voltage range of 1.8V to 5.5V.
- Q: How much flash memory does this MCU have?
- A: It features 32KB of in-system programmable flash memory (16K x 16 bits).
- Q: What package is the ATMEGA324PA-AU available in?
- A: It comes in a 44-pin TQFP package, suitable for surface-mount assembly.
- Q: Does it include a watchdog timer?
- A: Yes, it includes a Watchdog Timer (WDT) along with Brown-out Detection and Power-on Reset.
