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Microchip Technology ATMEGA168A-PU Microcontrollers

IC MCU 8BIT 16KB FLASH 28DIP

2,800 ActiveMicrochip TechnologyATMEGA168A28-DIP (0.300", 7.62mm)$6.92
ATMEGA168A-PU 28-DIP (0.300", 7.62mm) package illustration

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

ATMEGA168A-PU
Part Number (MPN)
ATMEGA168A-PU
Base Model
Detailed Description
IC MCU 8BIT 16KB FLASH 28DIP
Package
28-DIP (0.300", 7.62mm)
Lifecycle Status
Active
Datasheet
PDF ATMEGA168A-PU Datasheet
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Ordering Code Family

ATMEGA168A 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.

View all variants

Technical Specifications

Microchip Technology ATMEGA168A-PU Microcontrollers technical specifications.

General

Series
ATmega168A
RAM Size
1K x 8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
RoHS
Yes
Package / Case
28-DIP
Mounting Type
Through Hole
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.8V ~ 5.5V
Lifecycle Status
Active

Alternate Parts Comparison (ATMEGA168A-PU vs ATMEGA168A-MMH vs ATMEGA168A-AUR vs ATMEGA168A-AU)

Side-by-side technical parameter comparison of related primary models in this product family.

This PartAlternate PartsAlternate PartsAlternate Parts
Package / Case28-DIP28-VFQFN Exposed Pad32-TQFP32-TQFP
Mounting TypeThrough HoleSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage1.8V ~ 5.5V1.8V ~ 5.5V1.8V ~ 5.5V1.8V ~ 5.5V
Core ProcessorAVRAVRAVRAVR
Core Size8-Bit8-Bit8-Bit8-Bit
RAM Size1K x 81K x 81K x 81K x 8
RoHSYesYesYesYes
Lifecycle StatusActiveActiveActiveActive
ConnectivityI²C, SPI, UART/USARTI²C, SPI, UART/USARTI²C, SPI, UART/USARTI²C, SPI, UART/USART
Data ConvertersA/D 6x10bA/D 8x10bA/D 8x10bA/D 8x10b
EEPROM Size512 x 8512 x 8512 x 8512 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.