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Microchip Technology ATMEGA4809-AU Microcontrollers

IC MCU 8BIT 48KB FLASH 48TQFP

464 ActiveMicrochip TechnologyATMEGA480948-TQFP$6.25
ATMEGA4809-AU 48-TQFP package illustration

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

ATMEGA4809-AU
Part Number (MPN)
ATMEGA4809-AU
Base Model
Detailed Description
IC MCU 8BIT 48KB FLASH 48TQFP
Package
48-TQFP
Lifecycle Status
Active
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Ordering Code Family

ATMEGA4809 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

3 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology ATMEGA4809-AU Microcontrollers technical specifications.

General

RAM Size
6K x 8
RoHS
Yes
Number of Pins
48
Package / Case
48-TQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.8V ~ 5.5V
Lifecycle Status
Active
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
41

Related Parts Comparison (ATMEGA4809-AU vs ATMEGA4809 vs ATMEGA4809-AF vs ATMEGA4809-AUR)

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
Lifecycle StatusActiveIn ProductionActiveActive
Package / Case48-TQFP--48-TQFP48-TQFP
Mounting TypeSurface Mount--Surface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)---40°C ~ 125°C (TA)-40°C ~ 85°C (TA)
Supply Voltage1.8V ~ 5.5V--1.8V ~ 5.5V1.8V ~ 5.5V
Number of Pins48--4848
Core ProcessorAVR--AVRAVR
Core Size8-Bit--8-Bit8-Bit
RAM Size6K x 8--6K x 86K x 8
RoHSYes--YesYes
ADC Channels16--1616
ConnectivityI²C, SPI, UART/USART--I²C, SPI, UART/USARTI²C, SPI, UART/USART
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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

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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.