Microchip Technology ATMEGA324PA-MN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $17.56 | $17.56 |
| 15+ | $4.04 | $60.60 |
| 25+ | $3.95 | $98.75 |
| 50+ | $3.73 | $186.50 |
| 100+ | $3.29 | $329.00 |
| N+ | $0.66 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Tray | 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) | 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 ATMEGA324PA-MN is an 8-bit AVR microcontroller running at up to 20 MHz. It features 32KB of flash and 2KB of SRAM, with a supply voltage range of 1.8V to 5.5V. This device offers a rich set of peripherals including multiple timers, UART, SPI, and I2C in a 44-VFQFN package, with an extended temperature range up to 105°C.
- Wide Voltage Range (1.8V-5.5V): Compatible with both 3.3V and 5V systems, simplifying mixed-voltage designs.
- Extended Temperature Range: Rated for -40°C to 105°C, suitable for industrial and automotive environments.
- High I/O Count: The 44-pin package provides up to 32 I/O lines for complex interfacing.
- Mature AVR Ecosystem: Extensive documentation, libraries, and tools reduce development time.
Industrial Automation I/O
The 44-VFQFN package provides many I/O pins for reading switches and driving relays. The 105°C rating allows for use in hot control cabinets.
Sensor Networks
With 2KB RAM and multiple UART/SPI interfaces, it can aggregate data from several sensors and transmit via RS-485 or wireless modules.
Battery Management Systems
The 1.8V minimum supply allows for deep discharge operation. The ADC can monitor cell voltages, and the WDT ensures safe operation.
Motor Control (Simple)
The 20MHz AVR core and PWM channels can control DC motors or small steppers with precise speed and direction.
HVAC Controllers
The wide voltage range and robust I/O make it suitable for thermostat and fan coil unit controllers. The 32KB flash supports complex scheduling logic.
Test and Measurement Equipment
The 10-bit ADC and analog comparator enable simple measurement functions. The 105°C rating is beneficial for benchtop equipment in labs.
- Q: What is the core architecture of the ATMEGA324PA-MN?
- A: It uses an 8-bit AVR core.
- Q: What is the maximum clock speed?
- A: It operates at up to 20 MHz.
- Q: What is the supply voltage range?
- A: It runs from 1.8V to 5.5V.
- Q: How much flash memory does it have?
- A: It has 32KB of flash memory.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 105°C.
- Q: What is the core architecture of the ATMEGA324PA-MN?
- A: It uses an 8-bit AVR core.
- Q: What is the maximum clock speed?
- A: It operates at up to 20 MHz.
- Q: What is the supply voltage range?
- A: It runs from 1.8V to 5.5V.
- Q: How much flash memory does it have?
- A: It has 32KB of flash memory.
- Q: What is the operating temperature range?
- A: It is rated for -40°C to 105°C.

ATMEGA324PA-MN.pdf