Microchip Technology ATMEGA325A-MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.81 | $4.81 |
| 15+ | $4.66 | $69.90 |
| 25+ | $4.55 | $113.75 |
| 50+ | $4.30 | $215.00 |
| 100+ | $3.80 | $380.00 |
| 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 | SPI, UART/USART, USI |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Number of I/O | 54 |
| 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 | 64-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA325A-MU is an 8-bit AVR microcontroller in a 64-VFQFN package. It operates at up to 20MHz with 32KB of flash memory and 2K of SRAM. With a supply voltage range of 1.8V to 5.5V and integrated features like brown-out detection, PWM, and WDT, it is a reliable choice for cost-sensitive embedded applications.
- Wide Voltage Range: 1.8V to 5.5V supports both low-power and legacy 5V systems.
- Proven AVR Core: Simple architecture with high code efficiency and extensive tool support.
- Integrated Safety: Brown-out reset and WDT enhance system reliability.
- Compact Package: 64-VFQFN saves board space for space-constrained designs.
Consumer Electronics
Use the low-voltage operation (1.8V) for battery-powered remote controls and small appliances.
Industrial Sensors
Deploy the 20MHz AVR core for simple sensor readout and signal conditioning in factory automation.
Automotive Aftermarket
Implement window lift or mirror control modules with the wide voltage range and robust I/O.
Smart Home Devices
Control lighting and small motors with the PWM module and low-power sleep modes.
Educational Kits
Use the easy-to-program AVR architecture for microcontroller training and prototyping.
Portable Instruments
Combine low power and 5.5V operation for handheld multimeters and data loggers.
- Q: What is the core architecture of the ATMEGA325A-MU?
- A: It uses the 8-bit AVR core running at up to 20MHz.
- Q: What is the program memory size?
- A: It has 32KB of flash memory (16K x 16 bits).
- Q: What is the supply voltage range?
- A: The device operates from 1.8V to 5.5V.
- Q: What package is it available in?
- A: It comes in a 64-VFQFN exposed pad package.
- Q: Does it have brown-out detection?
- A: Yes, it includes Brown-out Detect/Reset, POR, PWM, and WDT.
- Q: What is the core architecture of the ATMEGA325A-MU?
- A: It uses the 8-bit AVR core running at up to 20MHz.
- Q: What is the program memory size?
- A: It has 32KB of flash memory (16K x 16 bits).
- Q: What is the supply voltage range?
- A: The device operates from 1.8V to 5.5V.
- Q: What package is it available in?
- A: It comes in a 64-VFQFN exposed pad package.
- Q: Does it have brown-out detection?
- A: Yes, it includes Brown-out Detect/Reset, POR, PWM, and WDT.

ATMEGA325A-MU.pdf