Microchip Technology ATMEGA329P-20MN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $23.16 | $23.16 |
| 15+ | $5.33 | $79.95 |
| 25+ | $5.21 | $130.25 |
| 50+ | $4.92 | $246.00 |
| 100+ | $4.34 | $434.00 |
| N+ | $0.87 | 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 | SPI, UART/USART, USI |
| Peripherals | Brown-out Detect/Reset, LCD, 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 ~ 105°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The Microchip ATMEGA329P-20MN is an 8-bit AVR microcontroller featuring 32KB of flash memory and 2KB of SRAM. It operates at up to 20MHz with a supply voltage range of 2.7V to 5.5V. This MCU integrates an LCD controller, PWM channels, and watchdog timer, making it ideal for display-centric embedded applications. Housed in a compact 64-VFQFN package, it supports extended temperature ranges from -40°C to 105°C.
- Integrated LCD Controller: Directly drives segmented displays without external ICs, reducing BOM cost.
- Wide Voltage Range (2.7V-5.5V): Compatible with both 3.3V and 5V systems, simplifying power design.
- High-Temperature Tolerance: Rated for -40°C to 105°C, suitable for industrial and automotive environments.
- 20MHz Performance: Fast AVR core handles complex control loops and user interface updates efficiently.
Industrial Control Panels
With an integrated LCD controller and 20MHz AVR core, this MCU can drive user interfaces and process sensor inputs in real-time for industrial automation.
Portable Medical Devices
The 2.7V-5.5V supply range and low-power AVR architecture enable battery-operated diagnostic tools with graphical displays.
Smart Meters
Its PWM outputs and brown-out detection ensure reliable operation in utility metering applications requiring precise measurement and display.
Automotive Aftermarket Displays
Operating from -40°C to 105°C, it suits dashboard clusters and climate control units needing robust performance in harsh environments.
Home Appliance Interfaces
The 32KB flash memory and LCD support allow for multi-function washing machines or ovens with user-friendly control panels.
Test and Measurement Equipment
High-speed 20MHz processing and 2KB SRAM enable accurate data logging and waveform generation in handheld instruments.
- Q: What is the maximum operating frequency of the ATMEGA329P-20MN?
- A: The maximum operating frequency is 20MHz.
- Q: What is the supply voltage range?
- A: It operates from 2.7V to 5.5V.
- Q: Does it include an LCD controller?
- A: Yes, it features an integrated LCD controller.
- Q: What is the package type?
- A: It comes in a 64-VFQFN exposed pad package.
- Q: What is the maximum operating frequency of the ATMEGA329P-20MN?
- A: The maximum operating frequency is 20MHz.
- Q: What is the supply voltage range?
- A: It operates from 2.7V to 5.5V.
- Q: Does it include an LCD controller?
- A: Yes, it features an integrated LCD controller.
- Q: What is the package type?
- A: It comes in a 64-VFQFN exposed pad package.

ATMEGA329P-20MN.pdf