Microchip Technology ATMEGA329P-20MU
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $22.04 | $22.04 |
| 15+ | $5.07 | $76.05 |
| 25+ | $4.96 | $124.00 |
| 50+ | $4.68 | $234.00 |
| 100+ | $4.13 | $413.00 |
| N+ | $0.83 | 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 ~ 85°C (TA) |
| Grade | - |
| Qualification AEC | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-QFN (9x9) |
| Package / Case | 64-VFQFN Exposed Pad |
| ROHS |
The ATMEGA329P-20MU is a high-speed 8-bit AVR microcontroller from Microchip running at 20MHz. It offers 32KB flash and 2KB SRAM, with an integrated LCD driver. Operating from 2.7V to 5.5V, it includes brown-out detection, POR, PWM, and WDT. The 64-VFQFN package is designed for demanding industrial and automotive applications.
- High-speed processing: 20MHz clock enables real-time control and fast display updates.
- Integrated LCD driver: Reduces external components and simplifies design.
- Robust protection: Brown-out detection and WDT ensure reliable operation in noisy environments.
- Flexible power: 2.7-5.5V supports both 3.3V and 5V systems.
High-Performance Industrial Displays
20MHz speed enables fast screen updates for production line counters with LCD readouts.
Automotive Instrument Clusters
5V operation and PWM drive warning LEDs; LCD shows speed and fuel levels.
Medical Infusion Pumps
32KB flash stores dosing protocols; WDT ensures safe operation; LCD displays flow rates.
Point-of-Sale Terminals
20MHz processing handles keypad scanning and LCD updates for payment devices.
Smart Grid Meters
Brown-out detection protects billing data; LCD shows consumption; PWM controls relays.
Robotics Controllers
Fast PWM generation for servo motors; LCD provides debugging info; POR ensures clean boot.
- Q: What is the maximum speed?
- A: It operates at 20MHz.
- Q: What is the flash size?
- A: It has 32KB (16K x 16) of flash.
- Q: Does it have an LCD driver?
- A: Yes, it includes a segment LCD controller.
- Q: What is the supply voltage?
- A: It runs from 2.7V to 5.5V.
- Q: What is the maximum speed?
- A: It operates at 20MHz.
- Q: What is the flash size?
- A: It has 32KB (16K x 16) of flash.
- Q: Does it have an LCD driver?
- A: Yes, it includes a segment LCD controller.
- Q: What is the supply voltage?
- A: It runs from 2.7V to 5.5V.

ATMEGA329P-20MU.pdf