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Microchip Technology 25AA320AT-I/ST Microcontrollers

IC EEPROM 32KBIT SPI 8TSSOP

20,000 ActiveMicrochip Technology25AA320SO$1.63
25AA320AT-I/ST SO package illustration

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

25AA320AT-I/ST
Part Number (MPN)
25AA320AT-I/ST
Base Model
Detailed Description
IC EEPROM 32KBIT SPI 8TSSOP
Package
SO
Lifecycle Status
Active
Datasheet
PDF 25AA320AT-I/ST Datasheet
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Ordering Code Family

25AA320 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

4 ordering variants listed on the family page.

View all variants

Technical Specifications

Microchip Technology 25AA320AT-I/ST Microcontrollers technical specifications.

General

Interface
Serial-SPI
Memory Size
32K
RoHS
Compliant
Number of Pins
8
Mounting Type
Surface Mount
Operating Temperature
-40 ~ 85
Supply Voltage
2.5/3.3/5
Lifecycle Status
Active
Automotive
No
PPAP
No

Alternate Parts Comparison (25AA320AT-I/ST vs 25AA320A-I/W16K vs 25AA320A-I/WF16K vs 25AA320T-I/SN)

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

This PartAlternate PartsAlternate PartsAlternate Parts
Mounting TypeSurface MountSurface MountSurface MountSurface Mount
Operating Temperature-40 ~ 85-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)-40°C ~ 85°C (TA)
Supply Voltage2.5/3.3/51.8V ~ 5.5V1.8V ~ 5.5V1.8V ~ 5.5V
Memory Size32K32Kb (4K x 8)32Kb (4K x 8)32Kb (4K x 8)
RoHSCompliantROHS3 CompliantCompliantCompliant
Lifecycle StatusActiveActiveActiveActive
AutomotiveNoNoNoNo
Max Frequency1010 MHz10 MHz1 MHz
PPAPNoNoNoNo
InterfaceSerial-SPI--Serial-SPISerial-SPI
Battery BackupNoNoNo--
Bus ModesSPISPISPI--
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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.