24LC025T-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC025T-E/ST is a 2Kbit I2C EEPROM memory integrated circuit manufactured by Microchip Technology. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and is packaged in an 8-TSSOP surface mount configuration. The part is currently active in production with 646 units in stock inventory.

Substitute parts are identified when design requirements necessitate alternative sourcing due to supply constraints, manufacturing discontinuation, or specific application requirements that fall within the allowable electrical and mechanical parameter ranges for this product category.

Substiute Parts

24LC025T-E/ST

Microchip TechnologyIn Stock: 68124LC025T-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

BR34E02FVT-3E2

Rohm SemiconductorIn Stock: 1034BR34E02FVT-3E2 Datasheet

MFR RecommendedRFQ

M24C02-DRDW3TP/K

STMicroelectronicsIn Stock: 2716M24C02-DRDW3TP/K Datasheet

MFR RecommendedRFQ

M24C02-FDW6TP

STMicroelectronicsIn Stock: 17196M24C02-FDW6TP 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 24LC025T-E/ST is determined by strict alignment with the following critical parameters:

Memory Specifications: Memory size must be 2Kbit with 256 x 8 organization. Memory interface must be I2C protocol.

Electrical Performance: Clock frequency must support 400 kHz operation. Access time must not exceed 900 ns. Write cycle time must not exceed 5 ms. Supply voltage range must encompass the 2.5V ~ 5.5V requirement or provide a compatible subset.

Physical Compatibility: Package type must be 8-TSSOP with 0.173" x 4.40mm width dimensions. Mounting type must be surface mount.

Compliance & Quality: All substitute parts must maintain ROHS3 compliance and MSL rating of 1 (Unlimited).

Substitute parts are grouped into two categories: MFR Recommended substitutes (manufacturer-approved alternatives) and Parametric Equivalent substitutes (parts meeting all electrical and mechanical specifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Electrical Equivalents (Identical Specifications):

The 34AA02T-E/ST (Microchip) provides identical electrical performance to the 24LC025T-E/ST with extended lower voltage support (1.7V minimum vs. 2.5V). This part maintains the same 400 kHz clock frequency, 900 ns access time, and 5 ms write cycle time. Operating temperature range extends to -40°C ~ 125°C. With 2040 units in inventory, this represents the highest availability among direct equivalents.

The M24C02-FDW6TP (STMicroelectronics) matches all critical electrical parameters: 400 kHz clock frequency, 900 ns access time, and 5 ms write cycle time. Supply voltage range is 1.7V ~ 5.5V. Operating temperature is -40°C ~ 85°C. Inventory availability is 17178 units, the highest among all substitutes.

The R1EX24002ATAS0I#U0 (Renesas Electronics) provides identical electrical specifications with 400 kHz clock frequency, 900 ns access time, and 5 ms write cycle time. Supply voltage is 1.8V ~ 5.5V. Operating temperature is -40°C ~ 85°C. Inventory is 3700 units.

The CAV24C02YE-GT3 (onsemi) matches the original part's supply voltage range (2.5V ~ 5.5V) and operating temperature (-40°C ~ 125°C). Clock frequency is 400 kHz, access time is 900 ns, and write cycle time is 5 ms. This part carries AEC-Q100 automotive qualification. Inventory is 17088 units.

Enhanced Performance Alternatives:

The M24C02-DRDW3TP/K (STMicroelectronics) offers superior performance with 1 MHz clock frequency and 450 ns access time, reducing write cycle time to 4 ms. Supply voltage is 1.8V ~ 5.5V with operating temperature -40°C ~ 125°C. This part carries AEC-Q100 automotive qualification and is suitable for applications requiring faster I2C communication. Inventory is 2628 units.

Lower Temperature Range Alternatives:

The BR24G02FVT-3GE2 and BR34E02FVT-3E2 (Rohm Semiconductor) both operate at 400 kHz with 5 ms write cycle time. Operating temperature range is limited to -40°C ~ 85°C. These parts are suitable for applications not requiring the extended 125°C upper temperature limit. Inventory levels are 3225 and 976 units respectively.

Compliance Status:

All substitute parts maintain ROHS3 compliance and MSL rating of 1 (Unlimited). All parts are active in production status.

Frequently Asked Questions (FAQ)

Q: Can the 34AA02T-E/ST replace the 24LC025T-E/ST in all applications?

A: The 34AA02T-E/ST is electrically compatible with identical clock frequency (400 kHz), access time (900 ns), and write cycle time (5 ms). The extended lower voltage support (1.7V vs. 2.5V minimum) provides additional design flexibility. Operating temperature range is identical (-40°C ~ 125°C). Physical package is 8-TSSOP. Substitution is valid for applications within these specifications.

Q: What is the difference between the M24C02-FDW6TP and M24C02-DRDW3TP/K?

A: Both are STMicroelectronics M24C02 variants in 8-TSSOP package. The M24C02-FDW6TP operates at 400 kHz with 900 ns access time and 5 ms write cycle. The M24C02-DRDW3TP/K operates at 1 MHz with 450 ns access time and 4 ms write cycle, providing faster I2C communication. The DRDW3TP/K variant carries AEC-Q100 automotive qualification. Selection depends on required I2C speed and automotive qualification requirements.

Q: Are the Rohm Semiconductor parts (BR24G02FVT-3GE2 and BR34E02FVT-3E2) suitable replacements?

A: Both Rohm parts provide 2Kbit I2C EEPROM functionality in 8-TSSOP-B package with 400 kHz clock frequency and 5 ms write cycle time. The critical limitation is operating temperature range of -40°C ~ 85°C, which does not extend to 125°C. These parts are suitable only for applications with maximum operating temperature of 85°C or lower.

Q: What is the inventory advantage of the M24C02-FDW6TP?

A: The M24C02-FDW6TP has the highest inventory availability at 17178 units. This part provides identical electrical specifications to the 24LC025T-E/ST (400 kHz, 900 ns access time, 5 ms write cycle) with supply voltage 1.7V ~ 5.5V and operating temperature -40°C ~ 85°C. High inventory availability reduces lead time risk for production applications.

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

A: The CAV24C02YE-GT3 carries AEC-Q100 automotive qualification. It matches the original part's supply voltage range (2.5V ~ 5.5V) and extended operating temperature (-40°C ~ 125°C). Clock frequency is 400 kHz with 900 ns access time and 5 ms write cycle time. This part is suitable for automotive applications requiring these specifications.

Q: Are all substitute parts ROHS3 compliant?

A: All substitute parts listed maintain ROHS3 compliance and MSL rating of 1 (Unlimited). Compliance status is consistent across all alternatives.

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

A: Both are 8-pin thin shrink small outline packages with 0.173" x 4.40mm width. The 8-TSSOP-B designation indicates a variant package from Rohm Semiconductor. Physical dimensions and pin pitch are compatible for PCB layout purposes. Verify specific footprint requirements with component datasheets before final design implementation.

Q: Which substitute offers the best balance of availability and performance?

A: The M24C02-FDW6TP provides the highest inventory (17178 units) with identical electrical specifications to the 24LC025T-E/ST. The 34AA02T-E/ST offers the second-highest availability (2040 units) with extended lower voltage support and identical performance. Selection depends on specific supply voltage and temperature requirements of the application.