24LC02BHT-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC02BHT-E/ST is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-TSSOP surface mount configuration. This non-volatile memory device operates across a supply voltage range of 2.5V to 5.5V and supports I2C communication at 400 kHz clock frequency. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit functional alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

24LC02BHT-E/ST

Microchip TechnologyIn Stock: 113524LC02BHT-E/ST Datasheet

Current PartRFQ

34AA02T-E/ST

Microchip TechnologyIn Stock: 207934AA02T-E/ST Datasheet

MFR RecommendedRFQ

BR24G02FVT-3GE2

Rohm SemiconductorIn Stock: 3290BR24G02FVT-3GE2 Datasheet

MFR RecommendedRFQ

CAT34C02YI-GT5A

onsemiIn Stock: 21665CAT34C02YI-GT5A Datasheet

MFR RecommendedRFQ

M24C02-DRDW3TP/K

STMicroelectronicsIn Stock: 2716M24C02-DRDW3TP/K Datasheet

MFR RecommendedRFQ

R1EX24002ATAS0I#U0

Renesas Electronics CorporationIn Stock: 3784R1EX24002ATAS0I#U0 Datasheet

MFR RecommendedRFQ

CAV24C02YE-GT3

onsemiIn Stock: 17165CAV24C02YE-GT3 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC02BHT-E/ST is determined by the following critical parameters:

• Memory capacity (2Kbit) and organization (256 x 8)
• I2C interface protocol
• Clock frequency compatibility (400 kHz minimum)
• Access time performance (900 ns or better)
• Package type (8-TSSOP surface mount)
• Supply voltage range overlap with 2.5V ~ 5.5V
• Operating temperature range coverage of -40°C ~ 125°C
• RoHS3 compliance and MSL 1 rating

Substitute parts are grouped into two categories: MFR Recommended substitutes (direct manufacturer-approved alternatives) and Parametric Equivalents (parts meeting all functional and mechanical requirements).

Parameter Comparison

Engineering Selection Recommendations

34AA02T-E/ST (Microchip Technology) — MFR Recommended substitute. Maintains identical memory specifications, clock frequency, and access time. Extended lower voltage limit (1.7V) provides additional design flexibility. Identical operating temperature range (-40°C ~ 125°C) and package configuration. ROHS3 compliant with MSL 1 rating. Highest inventory availability (2040 pcs).

M24C02-DRDW3TP/K (STMicroelectronics) — MFR Recommended substitute with enhanced performance. Supports 1 MHz clock frequency and 450 ns access time, exceeding the 400 kHz / 900 ns baseline. Maintains -40°C ~ 125°C operating temperature range. AEC-Q100 automotive qualification provides additional reliability assurance. ROHS3 compliant. Suitable for applications requiring higher I2C bus speeds.

CAV24C02YE-GT3 (onsemi) — Parametric Equivalent with automotive qualification (AEC-Q100). Matches all critical parameters: 2Kbit capacity, 400 kHz clock frequency, 900 ns access time, 2.5V ~ 5.5V supply range, and -40°C ~ 125°C operating temperature. 8-TSSOP package and ROHS3 compliance. Highest inventory availability (17088 pcs).

R1EX24002ATAS0I#U0 (Renesas Electronics) — MFR Recommended substitute. Identical memory specifications and I2C performance (400 kHz, 900 ns). Lower operating temperature limit (-40°C ~ 85°C) requires verification for applications requiring 125°C operation. Extended lower voltage limit (1.8V). ROHS3 compliant with MSL 1 rating.

CAT34C02YI-GT5A (onsemi) — MFR Recommended substitute. Matches core specifications: 2Kbit, 400 kHz, 900 ns access time. Lower operating temperature limit (-40°C ~ 85°C) requires verification for high-temperature applications. Extended lower voltage limit (1.7V). ROHS3 compliant. Highest inventory availability among this group (21561 pcs).

BR24G02FVT-3GE2 (Rohm Semiconductor) — MFR Recommended substitute. Maintains 2Kbit capacity and 400 kHz clock frequency. Lower operating temperature limit (-40°C ~ 85°C) requires verification. Package variant 8-TSSOP-B requires mechanical compatibility confirmation. ROHS3 compliant with MSL 1 rating.

Frequently Asked Questions (FAQ)

Q: Can I use 34AA02T-E/ST as a direct replacement for 24LC02BHT-E/ST?

A: Yes. Both parts share identical memory capacity (2Kbit), I2C interface, clock frequency (400 kHz), access time (900 ns), and operating temperature range (-40°C ~ 125°C). The 34AA02T-E/ST has a lower minimum supply voltage (1.7V vs 2.5V), which is compatible with designs operating at 2.5V ~ 5.5V. Packaging and RoHS compliance are identical.

Q: What is the difference between M24C02-DRDW3TP/K and the original part?

A: The M24C02-DRDW3TP/K supports higher I2C clock frequency (1 MHz vs 400 kHz) and faster access time (450 ns vs 900 ns). It maintains the same -40°C ~ 125°C operating temperature range and 8-TSSOP package. This part includes AEC-Q100 automotive qualification. It is functionally compatible but offers enhanced performance specifications.

Q: Are there temperature limitations I should consider when selecting a substitute?

A: Yes. The original 24LC02BHT-E/ST operates from -40°C to 125°C. Substitutes BR24G02FVT-3GE2, CAT34C02YI-GT5A, and R1EX24002ATAS0I#U0 have a maximum operating temperature of 85°C. These parts are not suitable for applications requiring operation above 85°C. Verify your application's temperature requirements before selection.

Q: Is the BR24G02FVT-3GE2 package variant (8-TSSOP-B) compatible with my PCB design?

A: The 8-TSSOP-B package maintains the same 0.173" width and 4.40mm dimensions as the standard 8-TSSOP. Mechanical compatibility with your PCB footprint must be confirmed with the package datasheet, as minor pin configuration variations may exist between TSSOP and TSSOP-B variants.

Q: Which substitute has the best supply availability?

A: CAV24C02YE-GT3 (onsemi) has the highest inventory availability at 21561 pcs. CAT34C02YI-GT5A (onsemi) is the second option with 21561 pcs. Both are readily available for immediate procurement.

Q: Do all substitutes maintain RoHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the original 24LC02BHT-E/ST specifications.

Q: Can I use CAV24C02YE-GT3 in automotive applications?

A: Yes. CAV24C02YE-GT3 carries AEC-Q100 automotive qualification, making it suitable for automotive-grade applications. The original 24LC02BHT-E/ST does not specify automotive qualification, so this substitute provides additional reliability assurance for automotive designs.