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Microchip Technology ATTINY45-20XU Microcontrollers

IC MCU 8BIT 4KB FLASH 8TSSOP

40,000 ActiveMicrochip Technology8-TSSOP (0.173", 4.40mm Width)$3.38
ATTINY45-20XU 8-TSSOP (0.173", 4.40mm Width) package illustration

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

ATTINY45-20XU
Part Number (MPN)
ATTINY45-20XU
Detailed Description
IC MCU 8BIT 4KB FLASH 8TSSOP
Package
8-TSSOP (0.173", 4.40mm Width)
Lifecycle Status
Active
Datasheet
PDF ATTINY45-20XU Datasheet
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Technical Specifications

Microchip Technology ATTINY45-20XU Microcontrollers technical specifications.

General

Series
ATtiny45
RAM Size
256 x 8
Data Bus Width
8 bit
Maximum Clock Frequency
20 MHz
RoHS
Yes
Package / Case
8-TSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active

Alternate Parts Comparison (ATTINY45-20XU vs ATTINY45-20XUR vs 24LC014-I/ST vs 24LC256T-E/ST)

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

This PartAlternate PartsAlternate PartsAlternate Parts
Package / Case8-TSSOP8-TSSOP8-TSSOP8-TSSOP
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 125°C (TA)
Supply Voltage2.7V ~ 5.5V2.7V ~ 5.5V2.5V ~ 5.5V2.5V ~ 5.5V
RoHSYesYesCompliantCompliant
Lifecycle StatusActiveActiveActiveActive
PackageTSSOP-8TSSOP-8SOSO
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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.