Equivalent & Substitute Parts for 24FC02-I/ST

Part Overview

The 24FC02-I/ST is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 1 MHz with 450 ns access time. This non-volatile memory device is designed for applications requiring serial data storage with low power consumption and wide supply voltage range (1.7V to 5.5V). The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level rating.

Equivalent and substitute parts are identified based on matching core electrical and mechanical specifications: 2Kbit memory capacity, 256 x 8 organization, I2C serial interface, 8-TSSOP surface mount packaging, and compatible operating temperature ranges. Substitute selection ensures functional interchangeability while accounting for minor parameter variations within acceptable engineering tolerances.

Substiute Parts

24FC02-I/ST

Microchip TechnologyIn Stock: 231124FC02-I/ST Datasheet

Current PartRFQ

BR24G02FVT-3AGE2

Rohm SemiconductorIn Stock: 2746BR24G02FVT-3AGE2 Datasheet

DirectRFQ

CAV24C02YE-GT3

onsemiIn Stock: 17165CAV24C02YE-GT3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24FC02-I/ST are qualified based on the following critical parameters that determine functional interchangeability:

Core Memory Specifications: All substitute parts maintain 2Kbit capacity with 256 x 8 organization and I2C serial interface protocol. This ensures pin-level and protocol compatibility at the system level.

Electrical Operating Range: Substitute parts operate within overlapping supply voltage windows and temperature ranges. The 24FC02-I/ST operates from 1.7V to 5.5V across -40°C to 85°C. Substitute parts must support these conditions or provide equivalent or superior ranges.

Timing Characteristics: Clock frequency, access time, and write cycle time determine system performance compatibility. Substitutes with equal or faster timing parameters maintain or improve system performance.

Package Compatibility: All qualified substitutes use 8-TSSOP surface mount packaging with identical 0.173" width and 4.40mm dimensions, ensuring PCB footprint compatibility without layout modifications.

Compliance & Certification: RoHS3 compliance and MSL ratings ensure environmental and manufacturing process compatibility across all qualified substitutes.

Parameter Comparison

Engineering Selection Recommendations

BR24G02FVT-3AGE2 (Rohm Semiconductor): This substitute maintains electrical and timing parity with the 24FC02-I/ST, offering 1 MHz I2C operation and 5 ms write cycle time. Supply voltage range extends to 1.6V minimum, providing marginally lower operating floor. Package designation 8-TSSOP-B indicates minor variant within the 8-TSSOP family, maintaining PCB compatibility. Active product status and ROHS3 compliance ensure continued availability and regulatory alignment. This substitute is suitable for direct replacement in applications where the 24FC02-I/ST supply constraints are not limiting.

CAV24C02YE-GT3 (onsemi): This substitute operates at reduced I2C clock frequency (400 kHz versus 1 MHz) with correspondingly slower access time (900 ns versus 450 ns). Supply voltage minimum increases to 2.5V, restricting operation in low-voltage applications below this threshold. Operating temperature range extends to 125°C, providing superior thermal performance. AEC-Q100 automotive qualification and grade designation indicate suitability for automotive applications. This substitute is appropriate for systems where lower I2C bus speeds are acceptable and extended temperature operation is beneficial. Applications requiring 1 MHz I2C operation should not use this substitute.

Frequently Asked Questions (FAQ)

Q: Can BR24G02FVT-3AGE2 directly replace 24FC02-I/ST in all applications?

A: BR24G02FVT-3AGE2 provides direct functional replacement for most applications. Both parts operate at 1 MHz I2C frequency with 5 ms write cycle time and identical 8-TSSOP packaging. The 8-TSSOP-B package variant maintains footprint compatibility. Verify that your application does not require operation below 1.6V supply voltage, as this is the BR24G02FVT-3AGE2 minimum specification.

Q: When should CAV24C02YE-GT3 be selected instead of the primary part?

A: CAV24C02YE-GT3 is selected when: (1) I2C bus speed can be reduced to 400 kHz without system impact, (2) extended operating temperature to 125°C is required, or (3) automotive-grade qualification (AEC-Q100) is mandated. Do not select this substitute if your system requires 1 MHz I2C operation or supply voltages below 2.5V.

Q: Are all substitute parts pin-compatible with 24FC02-I/ST?

A: Yes. All qualified substitutes use 8-TSSOP surface mount packaging with identical pinout for I2C EEPROM devices. PCB footprints are interchangeable without modification. Package variant designations (8-TSSOP versus 8-TSSOP-B) indicate minor physical differences that do not affect electrical compatibility or mounting.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: (1) matching 2Kbit memory capacity and 256 x 8 organization, (2) I2C serial interface protocol, (3) compatible or superior I2C clock frequency and access time, (4) overlapping or extended supply voltage and temperature ranges, (5) identical 8-TSSOP surface mount packaging, and (6) RoHS3 compliance and MSL ratings.

Q: Can I use CAV24C02YE-GT3 in a system designed for 1 MHz I2C operation?

A: No. CAV24C02YE-GT3 operates at maximum 400 kHz I2C frequency. Using this part in a system designed for 1 MHz operation will result in communication failures or data corruption. Select BR24G02FVT-3AGE2 or maintain the original 24FC02-I/ST for 1 MHz applications.

Q: What is the difference between 8-TSSOP and 8-TSSOP-B packaging?

A: Both designations refer to 8-pin thin shrink small outline packages with identical 0.173" width and 4.40mm dimensions. The "-B" variant indicates a minor physical or manufacturing specification difference that does not affect PCB footprint compatibility or electrical performance. Both packages are interchangeable for PCB layout purposes.