24LC02BH-I/MS EEPROM Equivalent & Substitute Parts

Part Overview

The 24LC02BH-I/MS is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-MSOP surface mount configuration. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and supports supply voltages from 2.5V to 5.5V across the industrial temperature range of -40°C to 85°C. The device is ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are necessary when the primary part becomes unavailable, when alternative manufacturers are preferred for supply chain diversification, or when enhanced performance specifications (higher clock frequency, lower supply voltage requirements) are required for specific application requirements.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5 ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-MSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across five critical dimensions:

Memory Specifications: All substitute parts must maintain 2Kbit capacity with 256 x 8 organization and I2C interface protocol.

Electrical Compatibility: Clock frequency, access time, and write cycle time must be equal to or better than the main part. Supply voltage range must encompass the main part's 2.5V minimum requirement.

Thermal Range: Operating temperature must cover the full -40°C to 85°C range specified for the main part.

Package Compatibility: All parts must use 8-MSOP or equivalent 8-pin surface mount packages with matching pinout and mechanical dimensions (0.118", 3.00mm width or 0.110", 2.80mm width variants).

Compliance: All parts must maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are categorized as MFR Recommended (manufacturer-approved alternatives) or Parametric Equivalent (functionally identical specifications).

Parameter Comparison

Part Number	Manufacturer	Clock Frequency	Access Time	Voltage Supply	Temperature Range	Package	Product Status	Inventory
24LC02BH-I/MS	Microchip	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	1079 Pcs
24AA02-I/MS	Microchip	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	1620 Pcs
24AA025-I/MS	Microchip	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	783 Pcs
24LC024H-I/MS	Microchip	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	2049 Pcs
34LC02-I/MS	Microchip	1 MHz	400 ns	2.2V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	1410 Pcs
24LC024-I/MS	Microchip	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	3118 Pcs
24LC02B-I/MS	Microchip	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	2187 Pcs
BR24A02FVM-WMTR	Rohm Semiconductor	400 kHz	Not Specified	2.5V ~ 5.5V	-40°C ~ 105°C	8-MSOP	Active	1390 Pcs
BR24G02FVJ-3AGTE2	Rohm Semiconductor	1 MHz	Not Specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	1723 Pcs
BR24G02FVJ-3GTE2	Rohm Semiconductor	400 kHz	Not Specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs	2600 Pcs
BR24G02FVM-3GTTR	Rohm Semiconductor	400 kHz	Not Specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	2710 Pcs

Engineering Selection Recommendations

Microchip Technology Direct Equivalents: The 24LC024-I/MS and 24LC02B-I/MS are parametric equivalents with identical electrical specifications to the 24LC02BH-I/MS. Both maintain active product status and ROHS3 compliance. The 24LC024-I/MS offers higher inventory availability (3118 units) with MSL 2 rating. Selection between these three parts depends on supply chain availability and moisture sensitivity requirements for storage conditions.

Enhanced Performance Alternatives: The 24LC024H-I/MS and 34LC02-I/MS provide superior performance with 1 MHz clock frequency and 400 ns access time, representing a 2.5x improvement in I2C speed. Both maintain the -40°C to 85°C temperature range and ROHS3 compliance. The 34LC02-I/MS operates at 2.2V minimum supply voltage compared to 2.5V for the main part. These parts are suitable for applications requiring faster I2C communication.

Extended Supply Voltage Range: The 24AA02-I/MS and 24AA025-I/MS support 1.7V minimum supply voltage, enabling operation in low-power applications. Both maintain 400 kHz clock frequency and 900 ns access time matching the main part. The 24AA025-I/MS is verified as DiGi-Electronics programmable.

Rohm Semiconductor Alternatives: The BR24A02FVM-WMTR provides automotive-grade qualification (AEC-Q100) with extended temperature range to 105°C, suitable for automotive applications. The BR24G02FVM-3GTTR offers 1.6V minimum supply voltage with 400 kHz operation. The BR24G02FVJ-3GTE2 is marked "Not For New Designs" and should not be selected for new applications.

Product Status Consideration: All Microchip parts maintain active product status. The BR24G02FVJ-3GTE2 from Rohm is designated "Not For New Designs" and should be avoided for new designs despite adequate inventory.

Frequently Asked Questions (FAQ)

Q: Can I substitute 24AA02-I/MS for 24LC02BH-I/MS in my design?

A: Yes. The 24AA02-I/MS is an MFR recommended substitute with identical memory capacity, I2C interface, clock frequency (400 kHz), access time (900 ns), and write cycle time (5 ms). The 24AA02-I/MS extends the supply voltage range to 1.7V minimum, making it compatible with all applications designed for 2.5V ~ 5.5V operation. Both parts use 8-MSOP packaging and maintain ROHS3 compliance with unlimited moisture sensitivity.

Q: What is the difference between 24LC024H-I/MS and 24LC02BH-I/MS?

A: The 24LC024H-I/MS operates at 1 MHz I2C clock frequency with 400 ns access time, compared to 400 kHz and 900 ns for the 24LC02BH-I/MS. This represents a 2.5x improvement in I2C communication speed. Both parts maintain 2Kbit capacity, 256 x 8 organization, 5 ms write cycle time, and -40°C to 85°C temperature range. The 24LC024H-I/MS is suitable for applications requiring faster data transfer rates.

Q: Are Rohm Semiconductor parts pin-compatible with Microchip parts?

A: Rohm BR24 series parts maintain I2C interface compatibility and 8-pin surface mount packaging. However, package variants differ: BR24A02FVM-WMTR uses 8-VSSOP (0.110", 2.80mm width), while BR24G02FVJ-3AGTE2 and BR24G02FVJ-3GTE2 use 8-TSSOP-BJ. The Microchip 24LC02BH-I/MS uses 8-MSOP (0.118", 3.00mm width). Verify PCB footprint compatibility before substitution.

Q: Can I use BR24G02FVJ-3GTE2 in a new design?

A: No. The BR24G02FVJ-3GTE2 is marked "Not For New Designs" by the manufacturer. Select BR24G02FVJ-3AGTE2 (1 MHz operation) or BR24G02FVM-3GTTR (400 kHz operation) for new applications.

Q: Which substitute part has the lowest minimum supply voltage?

A: The BR24G02FVJ-3AGTE2 and BR24G02FVM-3GTTR from Rohm Semiconductor support 1.6V minimum supply voltage, followed by the Microchip 24AA02-I/MS and 24AA025-I/MS at 1.7V minimum. The main part 24LC02BH-I/MS requires 2.5V minimum.

Q: What is the difference between MSL 1 and MSL 2 ratings?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life under controlled storage conditions. MSL 2 (1 Year) indicates a maximum one-year shelf life before the component must be baked before soldering. The 24LC02BH-I/MS and most substitutes carry MSL 1 rating. The 24LC024-I/MS carries MSL 2 rating, requiring moisture bake-out procedures if storage exceeds one year.

Q: Is the 34LC02-I/MS suitable for automotive applications?

A: The 34LC02-I/MS is not automotive-qualified. For automotive applications requiring AEC-Q100 qualification, select the BR24A02FVM-WMTR from Rohm Semiconductor, which includes automotive-grade qualification and extended temperature range to 105°C.

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