Microchip Technology ATMEGA329P-20MNR

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Product attributes Property Value
Manufacturer Microchip Technology
Product Series AVR® ATmega
Packaging Cut Tape (CT) | 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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Microchip ATMEGA329P-20MNR is an 8-bit AVR MCU with 32KB flash and 2KB SRAM. It features an integrated LCD driver, PWM, and brown-out detection. Operating at 20MHz from 2.7V to 5.5V, it comes in a 64-VFQFN package, ideal for display-centric applications.

  • Integrated LCD Driver: Directly drives segmented LCDs without external ICs.
  • High-Temperature Tolerance (105°C): Suitable for automotive and industrial environments.
  • Large Flash (32KB): Ample space for complex display routines.
  • Wide Voltage Range: Works with 3.3V and 5V systems.

Industrial Displays

Integrated LCD driver and 105°C rating make it perfect for factory panel meters and HMI displays.

Automotive Dashboard

Wide temperature range and LCD support enable instrument clusters in vehicles.

Medical Instruments

High reliability and LCD output suit patient monitoring equipment.

Smart Appliances

LCD display and PWM control for ovens and coffee machines with user-friendly interfaces.

Portable Test Equipment

Low power AVR core with LCD readout for multimeters and calibrators.

Building Automation

Thermostats and occupancy sensors benefit from LCD and robust operation.

Q: What is the core architecture?
A: It uses the AVR 8-bit core running at up to 20MHz.
Q: How much flash memory does it have?
A: It has 32KB of flash program memory.
Q: Does it have an LCD controller?
A: Yes, it includes an integrated LCD driver.
Q: What is the operating temperature range?
A: It operates from -40°C to 105°C.
Q: What package is this?
A: It comes in a 64-VFQFN exposed pad package.
Base Product Number : ATMEGA329P
20MHz 32KB flash 64-VFQFN 8-bit automotive AVR display industrial LCD driver
Q: What is the core architecture?
A: It uses the AVR 8-bit core running at up to 20MHz.
Q: How much flash memory does it have?
A: It has 32KB of flash program memory.
Q: Does it have an LCD controller?
A: Yes, it includes an integrated LCD driver.
Q: What is the operating temperature range?
A: It operates from -40°C to 105°C.
Q: What package is this?
A: It comes in a 64-VFQFN exposed pad package.