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Microchip Technology ATMEGA329P-20MNR Microcontroller, Microprocessor, FPGA Modules

IC MCU 8BIT 32KB FLASH 64QFN

929 ActiveMicrochip Technology64-VFQFN Exposed PadRoHS
ATMEGA329P-20MNR 64-VFQFN Exposed Pad package illustration

Same model may have multiple batches, images only for reference.

ATMEGA329P-20MNR
Part Number (MPN)
ATMEGA329P-20MNR
Detailed Description
IC MCU 8BIT 32KB FLASH 64QFN
Package
64-VFQFN Exposed Pad
Key Features
Package / Case: 64-VFQFN Exposed Pad; Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
PDF ATMEGA329P-20MNR Datasheet
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Technical Specifications

Microchip Technology ATMEGA329P-20MNR Microcontroller, Microprocessor, FPGA Modules technical specifications.

General

Interface
SPI, UART, USART
Memory Size
32 kB
RAM Size
2K x 8
Data Bus Width
8 b
RoHS
Yes
Number of Pins
64
Package / Case
64-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 105°C (TA)
Supply Voltage
2.7V ~ 5.5V

Related Parts Comparison (ATMEGA329P-20MNR vs ATMEGA329V-8MUR vs ATMEGA649-16MUR vs ATMEGA329-16MU)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case64-VFQFN Exposed Pad64-VFQFN Exposed Pad64-VFQFN Exposed Pad64-VFQFN Exposed Pad
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 105°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage2.7V ~ 5.5V1.8V ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V
Core ProcessorAVRAVRAVRAVR
Core Size8-Bit8-Bit8-Bit8-Bit
RAM Size2K x 82K x 84K x 82K x 8
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
ConnectivitySPI, UART/USART, USISPI, UART/USART, USISPI, UART/USART, USISPI, UART/USART, USI
Data ConvertersA/D 8x10bA/D 8x10bA/D 8x10bA/D 8x10b
EEPROM Size1K x 81K x 82K x 81K x 8
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Cross Reference

Manufacturer-stated alternates from official cross-reference tools. These are not a guaranteed pin-compatible drop-in. Qualify package, pinout, and electrical limits against the datasheet before a board change. See cross-reference vs drop-in compatible .

Suggested replacements

More Parts in Microcontrollers

Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.