Equivalent & Substitute Parts for 24LCS52-I/MS

Part Overview

The 24LCS52-I/MS is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. The device is packaged in 8-MSOP surface mount configuration and operates across a supply voltage range of 2.2V to 5.5V with temperature range of -40°C to 85°C. This part maintains Active product status and is ROHS3 compliant.

Substitute parts are identified when they maintain identical memory specifications (2Kbit capacity, 256 x 8 organization, I2C interface, 5ms write cycle time) while accommodating variations in clock frequency, supply voltage range, packaging format, and manufacturer implementation. Alternative sources become necessary for supply continuity, packaging preferences, or extended operational 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
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to core memory parameters: 2Kbit capacity, 256 x 8 organization, I2C interface protocol, and 5ms write cycle time. These parameters are non-negotiable for functional equivalence.

Secondary parameters that permit substitution variation include:

Clock Frequency: 400 kHz (standard) or 1 MHz (faster operation)
Access Time: 900 ns (standard) or 400 ns (faster variants)
Supply Voltage Range: 2.2V ~ 5.5V, 1.7V ~ 5.5V, 1.6V ~ 5.5V, or 2.5V ~ 5.5V
Packaging Format: Tube or Tape & Reel
Package Variant: 8-MSOP or 8-TSSOP
Manufacturer: Microchip Technology or Rohm Semiconductor
Product Status: Active or Not For New Designs
Certifications: Standard or AEC-Q100 automotive grade

Substitutes are grouped by functional capability tier: standard 400 kHz variants, enhanced 1 MHz variants, and automotive-qualified options.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Supply Voltage	Operating Temp	Package	Packaging Format	Product Status
24LCS52-I/MS	Microchip	2Kbit	400 kHz	900 ns	2.2V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tube	Active
24LCS52T-I/MS	Microchip	2Kbit	400 kHz	900 ns	2.2V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tape & Reel	Active
24AA02-I/MS	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tube	Active
24AA025-I/MS	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tube	Active
34LC02-I/MS	Microchip	2Kbit	1 MHz	400 ns	2.2V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tube	Active
BR24A02FVM-WMTR	Rohm	2Kbit	400 kHz	Not specified	2.5V ~ 5.5V	-40°C ~ 105°C	8-MSOP	Tape & Reel	Active
BR24G02FVJ-3AGTE2	Rohm	2Kbit	1 MHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel	Active
BR24G02FVJ-3GTE2	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel	Not For New Designs
BR24G02FVM-3GTTR	Rohm	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tape & Reel	Active
BR24L02FVJ-WE2	Rohm	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel	Not For New Designs
BR24L02FVM-WTR	Rohm	2Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Tape & Reel	Active

Engineering Selection Recommendations

Microchip Technology 400 kHz Standard Variants (Direct Equivalents)

24LCS52T-I/MS serves as the direct equivalent to 24LCS52-I/MS with identical electrical specifications and differs only in packaging format (Tape & Reel versus Tube). Selection between these depends on procurement and assembly requirements.

24AA02-I/MS and 24AA025-I/MS maintain 400 kHz operation and identical access time but extend the minimum supply voltage to 1.7V, enabling operation in lower-voltage applications while maintaining full compatibility with 2.2V ~ 5.5V systems.

Microchip Technology 1 MHz Enhanced Variant

34LC02-I/MS operates at 1 MHz clock frequency with 400 ns access time, providing faster I2C communication and reduced access latency. This variant maintains the 2.2V ~ 5.5V supply range and is suitable for applications requiring higher data throughput.

Rohm Semiconductor Variants

BR24A02FVM-WMTR (400 kHz, Tape & Reel) operates across 2.5V ~ 5.5V and extends the upper operating temperature to 105°C, suitable for automotive and industrial applications requiring elevated temperature performance.

BR24G02FVJ-3AGTE2 (1 MHz, Tape & Reel) provides 1 MHz operation with extended supply range of 1.6V ~ 5.5V and is Active product status.

BR24G02FVM-3GTTR (400 kHz, Tape & Reel) operates at 1.6V ~ 5.5V with Active product status.

BR24G02FVJ-3GTE2 and BR24L02FVJ-WE2 carry "Not For New Designs" status and should not be selected for new development.

BR24L02FVM-WTR (400 kHz, Tape & Reel) operates across 1.8V ~ 5.5V with Active product status.

Selection Criteria

For new designs, prioritize parts with Active product status. For applications requiring extended temperature range, select BR24A02FVM-WMTR. For lower minimum supply voltage requirements, select 24AA02-I/MS, 24AA025-I/MS, or Rohm variants with 1.6V ~ 1.8V minimum ratings. For higher clock frequency, select 34LC02-I/MS or BR24G02FVJ-3AGTE2.

Frequently Asked Questions (FAQ)

Q: Can 24LCS52-I/MS be replaced with 24LCS52T-I/MS?

A: Yes. Both parts are electrically identical with matching memory capacity, interface, clock frequency, access time, supply voltage, and operating temperature. The difference is packaging format: 24LCS52-I/MS is supplied in Tube format while 24LCS52T-I/MS is supplied in Tape & Reel format. Selection depends on assembly line requirements.

Q: What is the difference between 24LCS52-I/MS and 34LC02-I/MS?

A: Both are 2Kbit I2C EEPROM devices in 8-MSOP package with identical supply voltage range (2.2V ~ 5.5V) and operating temperature (-40°C ~ 85°C). The 34LC02-I/MS operates at 1 MHz clock frequency with 400 ns access time, compared to 24LCS52-I/MS at 400 kHz with 900 ns access time. The 34LC02-I/MS is suitable for applications requiring faster I2C communication.

Q: Are Rohm Semiconductor parts compatible with Microchip parts?

A: Yes, when core memory parameters match. All listed Rohm parts maintain 2Kbit capacity, 256 x 8 organization, I2C interface, and 5ms write cycle time. Compatibility depends on specific supply voltage and temperature requirements of the application. Rohm parts generally offer extended supply voltage ranges (down to 1.6V) compared to standard Microchip variants.

Q: What does "Not For New Designs" product status mean?

A: Parts marked "Not For New Designs" are in mature or end-of-life phases. While functionally equivalent, they should not be selected for new product development. Use Active status parts instead: BR24G02FVJ-3AGTE2 or BR24G02FVM-3GTTR as alternatives.

Q: Can I use BR24A02FVM-WMTR in place of 24LCS52-I/MS?

A: Yes, with considerations. BR24A02FVM-WMTR maintains 2Kbit capacity, I2C interface, 400 kHz operation, and 5ms write cycle time. It operates across 2.5V ~ 5.5V (versus 2.2V ~ 5.5V) and extends upper temperature to 105°C. It is supplied in Tape & Reel format. Use this part when higher temperature operation is required or when Tape & Reel packaging is preferred.

Q: What is the advantage of 24AA02-I/MS over 24LCS52-I/MS?

A: 24AA02-I/MS extends the minimum supply voltage to 1.7V, enabling operation in lower-voltage systems. All other electrical parameters remain identical. Select this part when the application requires operation below 2.2V.

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

A: BR24G02FVJ-3AGTE2 and BR24G02FVM-3GTTR both operate at 1.6V minimum supply voltage, the lowest among all listed substitutes. BR24G02FVJ-3AGTE2 additionally provides 1 MHz clock frequency operation.

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