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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

Related Parts Comparison (ATMEGA168A-PU vs ATMEGA168A-MMH vs ATMEGA168A-AUR vs ATMEGA168A-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 / 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.