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Microchip Technology ATMEGA325-16MU Microcontrollers

IC MCU 8BIT 32KB FLASH 64QFN

500 ActiveMicrochip TechnologyATMEGA32564-VFQFN Exposed Pad$14.01
ATMEGA325-16MU 64-VFQFN Exposed Pad package illustration

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

ATMEGA325-16MU
Part Number (MPN)
ATMEGA325-16MU
Base Model
Detailed Description
IC MCU 8BIT 32KB FLASH 64QFN
Package
64-VFQFN Exposed Pad
Lifecycle Status
Active
Datasheet
PDF ATMEGA325-16MU Datasheet
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Ordering Code Family

ATMEGA325 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology ATMEGA325-16MU Microcontrollers technical specifications.

General

RAM Size
2K x 8
RoHS
Yes
Package / Case
64-VFQFN Exposed Pad
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
54
Speed
16MHz

Related Parts Comparison (ATMEGA325-16MU vs ATMEGA3250A-MN vs ATMEGA325-16MUR vs ATMEGA3250A-AU)

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 Pad100-TQFP
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 105°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage2.7V ~ 5.5V1.8V ~ 5.5V2.7V ~ 5.5V1.8V ~ 5.5V
Core ProcessorAVRAVRAVRAVR
Core Size8-Bit8-Bit8-Bit8-Bit
RAM Size2K x 82K x 82K 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 81K x 81K x 8
Action

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

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