Equivalent & Substitute Parts for 24LCS52T-I/MS

Part Overview

The 24LCS52T-I/MS is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. This component is classified as Active product status and is RoHS3 compliant. The device is packaged in 8-MSOP surface mount configuration with unlimited moisture sensitivity level rating.

Substitute parts are necessary when the primary component becomes unavailable, when alternative voltage supply ranges are required, or when different operating temperature specifications are needed 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	5ms
Voltage Supply Range	2.2V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24LCS52T-I/MS is determined by the following critical parameters:

Core Functional Parameters:

Memory Size: 2Kbit (mandatory match)
Memory Organization: 256 x 8 (mandatory match)
Memory Interface: I2C (mandatory match)
Write Cycle Time: 5ms (mandatory match)

Electrical Compatibility Parameters:

Voltage Supply Range: Must encompass or be compatible with 2.2V ~ 5.5V
Clock Frequency: 400 kHz minimum (higher frequencies are acceptable)
Access Time: 900 ns or better

Physical & Environmental Parameters:

Package Type: 8-MSOP or 8-TSSOP (pin-compatible packages)
Mounting Type: Surface Mount (mandatory match)
Operating Temperature: Must support -40°C ~ 85°C minimum range
RoHS Compliance: ROHS3 Compliant (mandatory match)

Substitute parts are grouped into two categories: Microchip Technology direct alternatives with verified programmability and Rohm Semiconductor alternatives with varying product status classifications.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temp	Package	Product Status	Programmable
24LCS52T-I/MS	Microchip Technology	2Kbit	400 kHz	2.2V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	Verified
24AA024T-I/MS	Microchip Technology	2Kbit	400 kHz	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	Verified
24AA02T-I/MS	Microchip Technology	2Kbit	400 kHz	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	Verified
BR24A02FVM-WMTR	Rohm Semiconductor	2Kbit	400 kHz	2.5V ~ 5.5V	-40°C ~ 105°C	8-MSOP	Active	Not Verified
BR24G02FVJ-3AGTE2	Rohm Semiconductor	2Kbit	1 MHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active	Not Verified
BR24G02FVJ-3GTE2	Rohm Semiconductor	2Kbit	400 kHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs	Not Verified
BR24G02FVM-3GTTR	Rohm Semiconductor	2Kbit	400 kHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	Not Verified
BR24L02FVJ-WE2	Rohm Semiconductor	2Kbit	400 kHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs	Verified
BR24L02FVM-WTR	Rohm Semiconductor	2Kbit	400 kHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	Verified
BR24T02FVJ-WE2	Rohm Semiconductor	2Kbit	400 kHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs	Not Verified
BR24T02FVM-WTR	Rohm Semiconductor	2Kbit	400 kHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active	Not Verified

Engineering Selection Recommendations

Tier 1 - Primary Substitutes (Microchip Technology):

24AA024T-I/MS and 24AA02T-I/MS are direct Microchip Technology alternatives with Active product status and Verified programmability. Both devices support extended lower voltage operation (1.7V minimum) compared to the 24LCS52T-I/MS (2.2V minimum), providing broader application flexibility. These parts maintain identical clock frequency, access time, and operating temperature specifications. Packaging remains 8-MSOP surface mount configuration.

Tier 2 - Secondary Substitutes (Rohm Semiconductor - 8-MSOP Package):

BR24A02FVM-WMTR, BR24G02FVM-3GTTR, BR24L02FVM-WTR, and BR24T02FVM-WTR are Rohm Semiconductor alternatives in 8-MSOP package format. BR24A02FVM-WMTR is Active status with automotive qualification (AEC-Q100) and extended operating temperature to 105°C. BR24G02FVM-3GTTR and BR24T02FVM-WTR are Active status with lower minimum voltage (1.6V). BR24L02FVM-WTR is Active status with Verified programmability and 1.8V minimum voltage operation.

Tier 3 - Alternative Package Substitutes (Rohm Semiconductor - 8-TSSOP Package):

BR24G02FVJ-3AGTE2, BR24G02FVJ-3GTE2, BR24L02FVJ-WE2, and BR24T02FVJ-WE2 are Rohm Semiconductor alternatives in 8-TSSOP package configuration. BR24G02FVJ-3AGTE2 operates at 1 MHz clock frequency (higher than 400 kHz specification). BR24G02FVJ-3GTE2, BR24L02FVJ-WE2, and BR24T02FVJ-WE2 maintain 400 kHz operation. BR24G02FVJ-3GTE2 and BR24T02FVJ-WE2 are classified as Not For New Designs.

Selection Criteria:

For new designs requiring maximum compatibility with the 24LCS52T-I/MS, select 24AA024T-I/MS or 24AA02T-I/MS. For applications requiring extended temperature operation, BR24A02FVM-WMTR with automotive qualification is appropriate. For applications requiring lower minimum voltage operation, BR24G02FVM-3GTTR or BR24T02FVM-WTR are suitable. Avoid parts classified as Not For New Designs for new product development.

Frequently Asked Questions (FAQ)

Q: Can BR24G02FVJ-3AGTE2 be used as a direct replacement for 24LCS52T-I/MS?

A: BR24G02FVJ-3AGTE2 is functionally compatible for 2Kbit I2C EEPROM applications. However, it operates at 1 MHz clock frequency versus the 400 kHz specification of 24LCS52T-I/MS. The package is 8-TSSOP-BJ rather than 8-MSOP, requiring PCB layout modification. Voltage supply range is 1.6V ~ 5.5V, which encompasses the 2.2V ~ 5.5V requirement.

Q: What is the difference between 24AA024T-I/MS and 24AA02T-I/MS?

A: Both parts are Microchip Technology 2Kbit I2C EEPROM devices with identical electrical and functional specifications. The primary difference is the base product number designation (24AA024 versus 24AA02). Both support 1.7V ~ 5.5V voltage operation, 400 kHz clock frequency, and -40°C ~ 85°C operating temperature range. Both are packaged in 8-MSOP and are Active status with Verified programmability.

Q: Are Rohm Semiconductor parts with "Not Verified" programmability suitable for production use?

A: Parts classified as "Not Verified" for DiGi-Electronics Programmable status indicate that programmability has not been confirmed through DiGi-Electronics testing procedures. These parts may still be suitable for production applications if they meet all other electrical, mechanical, and compliance requirements. Verification status does not indicate functional deficiency but rather testing completion status.

Q: Can I use BR24L02FVJ-WE2 if my application requires 8-TSSOP package?

A: BR24L02FVJ-WE2 is classified as Not For New Designs. While it meets the 2Kbit I2C EEPROM functional requirements and is available in 8-TSSOP package, Rohm Semiconductor has designated this part as obsolete for new product development. For new designs requiring 8-TSSOP package, BR24G02FVJ-3AGTE2 is the recommended alternative.

Q: What is the minimum voltage supply requirement across all substitute options?

A: The 24LCS52T-I/MS requires 2.2V minimum. Microchip alternatives (24AA024T-I/MS, 24AA02T-I/MS) support 1.7V minimum. Rohm Semiconductor alternatives support 1.6V to 2.5V minimum depending on specific part number. Applications requiring operation below 2.2V should select Microchip or Rohm parts with lower minimum voltage specifications.

Q: Are all substitute parts RoHS3 compliant?

A: All substitute parts listed are RoHS3 compliant, matching the compliance status of the 24LCS52T-I/MS. All parts maintain unlimited moisture sensitivity level (MSL 1) rating.

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