Microchip Technology ATMEGA329P-20ANR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.71 | $6.71 |
| 15+ | $6.50 | $97.50 |
| 25+ | $6.35 | $158.75 |
| 50+ | $6.00 | $300.00 |
| 100+ | $5.30 | $530.00 |
| N+ | $1.06 | 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, 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 | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 64-TQFP (14x14) |
| Package / Case | 64-TQFP |
| ROHS |
The Microchip ATMEGA329P-20ANR is an 8-bit AVR microcontroller in a 64-TQFP package. It operates from 2.7V to 5.5V at up to 20MHz. With 32KB program memory, 2KB SRAM, and an integrated LCD controller, it is designed for cost-sensitive display and control applications. Additional features include brown-out detection, PWM, and a watchdog timer.
- Integrated LCD driver – eliminates external display driver ICs, reducing PCB size.
- Wide voltage range (2.7V-5.5V) – simplifies power supply design in mixed-voltage systems.
- 20MHz AVR core – provides ample performance for real-time control loops.
- High-temperature option (105°C) – suitable for automotive and industrial environments.
Metering Displays
The integrated LCD driver and 5V operation make it ideal for utility meters with segment displays.
Industrial Timers
With 20MHz speed and WDT, it provides reliable timing for process control panels.
Battery-Powered Instruments
Low-power sleep modes and 2.7V operation extend battery life in handheld gauges.
Home Appliance Control
The 32KB flash and PWM outputs handle user interfaces and motor speed control in washing machines.
Automotive Aftermarket
105°C rating supports under-dash modules for climate control or trip computers.
Portable Medical Monitors
Integrated LCD and low power enable compact vital-sign displays with long battery life.
- Q: What is the maximum clock speed?
- A: It runs at up to 20MHz.
- Q: Does it have an LCD controller?
- A: Yes, it includes a built-in LCD driver for segment displays.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V, compatible with 5V systems.
- Q: What package is this variant?
- A: It is in a 64-TQFP package.
- Q: What is the maximum clock speed?
- A: It runs at up to 20MHz.
- Q: Does it have an LCD controller?
- A: Yes, it includes a built-in LCD driver for segment displays.
- Q: What is the operating voltage range?
- A: It operates from 2.7V to 5.5V, compatible with 5V systems.
- Q: What package is this variant?
- A: It is in a 64-TQFP package.

ATMEGA329P-20ANR.pdf