Microchip Technology ATMEGA325P-20AUR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.97 | $5.97 |
| 15+ | $5.78 | $86.70 |
| 25+ | $5.65 | $141.25 |
| 50+ | $5.34 | $267.00 |
| 100+ | $4.71 | $471.00 |
| N+ | $0.94 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Microchip Technology |
| Product Series | AVR® ATmega |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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) | 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 | 64-TQFP (14x14) |
| Package / Case | 64-TQFP |
| ROHS |
The ATMEGA325P-20AUR is an 8-bit AVR microcontroller from Microchip Technology, operating at up to 20MHz. It provides 32KB Flash and 2KB RAM, with a supply voltage range of 2.7V to 5.5V. This MCU includes Brown-out Reset, POR, PWM, and WDT for reliable operation. The 64-TQFP package offers extensive I/O capabilities for complex embedded systems.
- Wide voltage range (2.7-5.5V) – Supports both low-power and standard 5V logic.
- 64-pin TQFP package – Provides up to 54 I/O pins for peripheral-rich designs.
- 20MHz AVR core – Efficient performance for most control applications.
- 32KB Flash – Sufficient for complex firmware with bootloader support.
- Integrated safety features – Brown-out Reset and WDT enhance system robustness.
Industrial Automation Panels
The 64-pin TQFP provides numerous I/O for interfacing with relays, sensors, and displays.
Automotive Dashboard Clusters
With 5V operation and PWM, it can drive indicator LEDs and stepper motors for gauges.
Smart Home Thermostats
Low-power modes and 2.7V operation extend battery life while managing temperature sensors.
Medical Device Interfaces
The 20MHz speed handles user interface and communication tasks in patient monitors.
Point-of-Sale Terminals
Multiple UARTs and I/O support keypads, displays, and card readers.
Test and Measurement Equipment
Accurate timing and PWM generation make it suitable for signal generators and counters.
- Q: What is the supply voltage range?
- A: It operates from 2.7V to 5.5V, suitable for battery and 5V systems.
- Q: What is the maximum speed?
- A: The AVR core runs at up to 20MHz, providing moderate performance.
- Q: How much memory does it have?
- A: It features 32KB Flash and 2KB RAM, enough for many embedded applications.
- Q: What package is this?
- A: It comes in a 64-TQFP package, offering many I/O pins.
- Q: Does it have safety features?
- A: Yes, it includes Brown-out Reset, POR, PWM, and WDT.
- Q: What is the supply voltage range?
- A: It operates from 2.7V to 5.5V, suitable for battery and 5V systems.
- Q: What is the maximum speed?
- A: The AVR core runs at up to 20MHz, providing moderate performance.
- Q: How much memory does it have?
- A: It features 32KB Flash and 2KB RAM, enough for many embedded applications.
- Q: What package is this?
- A: It comes in a 64-TQFP package, offering many I/O pins.
- Q: Does it have safety features?
- A: Yes, it includes Brown-out Reset, POR, PWM, and WDT.

ATMEGA325P-20AUR.pdf