Equivalent & Substitute Parts for 24FC64-I/SM

Part Overview

The 24FC64-I/SM is a 64Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface communication at 1 MHz clock frequency. This non-volatile memory device is packaged in 8-SOIC surface mount configuration and operates across a wide voltage range of 1.7V to 5.5V with temperature stability from -40°C to 85°C. The part is currently in active production status and ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct functional replacement in circuit applications.

Substiute Parts

24FC64-I/SM

Microchip TechnologyIn Stock: 67824FC64-I/SM Datasheet

Current PartRFQ

24FC64T-I/SM

Microchip TechnologyIn Stock: 491824FC64T-I/SM Datasheet

DirectRFQ

24AA64-I/SM

Microchip TechnologyIn Stock: 143624AA64-I/SM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24FC64-I/SM is determined by strict equivalence across the following critical parameters: 64Kbit memory capacity, 8K x 8 organization, I2C interface protocol, 1.7V to 5.5V supply voltage compatibility, -40°C to 85°C operating temperature range, 8-SOIC surface mount package, and 5ms write cycle time. Substitute parts must maintain identical memory specifications and physical packaging to ensure direct circuit compatibility without design modification. Clock frequency and access time variations are permitted when the substitute part meets or exceeds the performance requirements of the primary application.

Parameter Comparison

Engineering Selection Recommendations

The 24FC64T-I/SM serves as a direct electrical and mechanical equivalent to the 24FC64-I/SM, with identical performance specifications across all critical parameters. The primary distinction is packaging format: the 24FC64T-I/SM is supplied in Tape & Reel configuration versus Tube packaging for the main part. This substitute is suitable for applications requiring high-volume component sourcing or automated assembly processes.

The 24AA64-I/SM is a manufacturer-recommended alternative that maintains full compatibility with the 24FC64-I/SM across memory capacity, organization, interface protocol, voltage range, temperature range, and package type. The 24AA64-I/SM operates at reduced clock frequency (400 kHz versus 1 MHz) and longer access time (900 ns versus 400 ns). This part is appropriate for applications where lower speed operation is acceptable and where the extended access time does not impact system timing requirements. All three parts maintain ROHS3 compliance and active production status.

Frequently Asked Questions (FAQ)

Q: Can the 24FC64T-I/SM replace the 24FC64-I/SM in existing designs?

A: Yes. The 24FC64T-I/SM is electrically and mechanically identical to the 24FC64-I/SM. The only difference is packaging format (Tape & Reel versus Tube). No circuit modifications are required.

Q: What are the limitations of using the 24AA64-I/SM as a substitute?

A: The 24AA64-I/SM operates at 400 kHz clock frequency and 900 ns access time, compared to 1 MHz and 400 ns for the 24FC64-I/SM. Applications requiring faster I2C communication or shorter access times may not be compatible. Verify system timing requirements before selection.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-SOIC package with identical pinout and electrical interface specifications.

Q: Do packaging differences affect circuit performance?

A: No. Tube and Tape & Reel packaging formats contain identical components. Packaging selection is based on assembly process requirements and volume considerations, not electrical performance.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 24FC64-I/SM, 24FC64T-I/SM, and 24AA64-I/SM are all ROHS3 compliant and suitable for applications with environmental compliance requirements.