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Microchip Technology ATTINY45-20SUR Microcontroller, Microprocessor, FPGA Modules

IC MCU 8BIT 4KB FLASH 8SOIC

34,632 ActiveMicrochip Technology8-SOIC (0.209", 5.30mm Width)$3.62RoHS
ATTINY45-20SUR 8-SOIC (0.209", 5.30mm Width) package illustration

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

ATTINY45-20SUR
Part Number (MPN)
ATTINY45-20SUR
Detailed Description
IC MCU 8BIT 4KB FLASH 8SOIC
Package
8-SOIC (0.209", 5.30mm Width)
Key Features
Package / Case: 8-SOIC (0.209", 5.30mm Width); Mounting Type: Surface Mount
Lifecycle Status
Active
RoHS State
RoHS Compliant
Datasheet
PDF ATTINY45-20SUR Datasheet
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Technical Specifications

Microchip Technology ATTINY45-20SUR Microcontroller, Microprocessor, FPGA Modules 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-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.7V ~ 5.5V
Lifecycle Status
Active

Related Parts Comparison (ATTINY45-20SUR vs ATTINY12L-4SI vs ATTINY13-20SI vs ATTINY25-15SZ)

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 / Case8-SOIC8-SOIC8-SOIC8-SOIC
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 ~ 5.5V2.7V ~ 5.5V2.7V ~ 5.5V
Core ProcessorAVRAVRAVRAVR
Core Size8-Bit8-Bit8-Bit8-Bit
RAM Size256 x 864 B64 x 8128 x 8
RoHSYesYesYesYes
Lifecycle StatusActiveObsoleteObsoleteActive
EEPROM Size256 x 864 x 864 x 8128 x 8
Number of I/O6666
Oscillator TypeInternalInternalInternalInternal
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.