Equivalent & Substitute Parts for 24AA024-I/MS

Part Overview

The 24AA024-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 non-volatile memory device is packaged in 8-MSOP surface mount configuration and operates across a supply voltage range of 1.7V to 5.5V with temperature range of -40°C to 85°C. The part is ROHS3 compliant and carries Active product status with verified programmability through DiGi-Electronics.

Substitute parts are necessary when the primary part experiences supply constraints, when alternative packaging formats are required for manufacturing processes, or when enhanced specifications such as higher clock frequency or extended temperature ranges are needed for specific application requirements.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile EEPROM
Memory Size	2Kbit
Memory Organization	256 x 8
Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5 ms
Supply Voltage Range	1.7V ~ 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
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 24AA024-I/MS is determined by the following critical parameters:

Primary Substitution Criteria:

Memory capacity: 2Kbit (256 x 8 organization)
Interface protocol: I2C
Clock frequency: 400 kHz minimum
Supply voltage compatibility: Must support 1.7V ~ 5.5V range
Operating temperature: -40°C ~ 85°C minimum
Package compatibility: 8-MSOP or equivalent footprint
Surface mount configuration

Substitution Categories:

Category 1: Direct Manufacturer Equivalents (Microchip Technology) Parts 24AA024T-I/MS and 24AA025-I/MS maintain identical electrical specifications and differ only in packaging format (Cut Tape/Digi-Reel versus Tube) or minor part number variants. These provide direct functional replacement with verified programmability status.

Category 2: Parametric Equivalents (Microchip Technology) Part 24AA02-I/MS provides identical memory capacity, interface, and electrical performance but carries "Not Verified" programmability status through DiGi-Electronics.

Category 3: Manufacturer-Recommended Alternatives (Rohm Semiconductor) Parts BR24A02FVM-WMTR, BR24G02FVJ-3AGTE2, BR24G02FVJ-3GTE2, BR24G02FVM-3GTTR, BR24T02FVJ-WE2, and BR34E02FVT-3E2 meet core memory specifications with variations in clock frequency (400 kHz to 1 MHz), supply voltage ranges (1.6V ~ 5.5V or 2.5V ~ 5.5V), and package configurations. Some variants include automotive qualification (AEC-Q100) and extended temperature ratings.

Category 4: Manufacturer-Recommended Alternatives (STMicroelectronics) Part M24C02-DRDW3TP/K provides 2Kbit I2C EEPROM with enhanced specifications including 1 MHz clock frequency, 450 ns access time, 4 ms write cycle, extended supply range (1.8V ~ 5.5V), and automotive-grade qualification with -40°C ~ 125°C operating temperature.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Write Cycle	Supply Voltage	Temp Range	Package	Status
24AA024-I/MS	Microchip	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
24AA024T-I/MS	Microchip	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
24AA02-I/MS	Microchip	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
24AA025-I/MS	Microchip	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
BR24A02FVM-WMTR	Rohm	2Kbit	400 kHz	—	5 ms	2.5V ~ 5.5V	-40°C ~ 105°C	8-MSOP	Active
BR24G02FVJ-3AGTE2	Rohm	2Kbit	1 MHz	—	5 ms	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
BR24G02FVJ-3GTE2	Rohm	2Kbit	400 kHz	—	5 ms	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
BR24G02FVM-3GTTR	Rohm	2Kbit	400 kHz	—	5 ms	1.6V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
BR24T02FVJ-WE2	Rohm	2Kbit	400 kHz	—	5 ms	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
BR34E02FVT-3E2	Rohm	2Kbit	400 kHz	—	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
M24C02-DRDW3TP/K	STMicroelectronics	2Kbit	1 MHz	450 ns	4 ms	1.8V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Active

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications: Select 24AA024T-I/MS when packaging format change from Tube to Cut Tape/Digi-Reel is acceptable. This part maintains all electrical and thermal specifications of the primary part with verified programmability status and Active product status.

For Parametric Equivalence with Verified Status: Select 24AA025-I/MS as an alternative Microchip solution. This part provides identical core specifications with Active status and verified programmability, differing only in minor part number designation.

For Rohm Semiconductor Alternatives: Select BR24G02FVM-3GTTR for direct 8-MSOP package compatibility with 400 kHz operation and 1.6V minimum supply voltage support. This part maintains Active product status and provides equivalent functionality with extended lower voltage operation.

Select BR24A02FVM-WMTR when automotive-grade qualification (AEC-Q100) and extended operating temperature to 105°C are required, accepting the higher minimum supply voltage of 2.5V.

Select BR24G02FVJ-3AGTE2 when 1 MHz clock frequency operation is required, accepting the 8-TSSOP package format change.

For STMicroelectronics Alternative: Select M24C02-DRDW3TP/K when automotive-grade qualification (AEC-Q100), extended operating temperature to 125°C, and enhanced performance (1 MHz clock, 450 ns access time, 4 ms write cycle) are required. This part accepts 8-TSSOP package format and requires minimum 1.8V supply voltage.

Avoid Selection: Parts BR24G02FVJ-3GTE2 and BR24T02FVJ-WE2 carry "Not For New Designs" status and should not be selected for new applications.

Frequently Asked Questions (FAQ)

Q: Can 24AA024T-I/MS directly replace 24AA024-I/MS? A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications, memory capacity, interface protocol, and operating parameters. The difference is packaging format: 24AA024T-I/MS uses Cut Tape/Digi-Reel packaging while 24AA024-I/MS uses Tube packaging. Both are Active status with verified programmability.

Q: What is the minimum clock frequency requirement for substitution? A: The primary part operates at 400 kHz. Substitute parts must support at least 400 kHz operation. Parts with higher clock frequencies (such as 1 MHz variants) are acceptable as they provide backward compatibility with 400 kHz applications.

Q: Are Rohm Semiconductor parts compatible with the original Microchip design? A: Rohm parts meet the core 2Kbit I2C EEPROM specifications with 400 kHz minimum clock frequency and 5 ms write cycle time. However, package format differences exist: BR24G02FVM-3GTTR maintains 8-MSOP compatibility, while BR24G02FVJ-3AGTE2 and BR34E02FVT-3E2 use 8-TSSOP format. Verify PCB footprint compatibility before selection.

Q: What is the supply voltage consideration when selecting alternatives? A: The primary part operates from 1.7V to 5.5V. Most Rohm alternatives support 1.6V minimum (lower than primary), while BR24A02FVM-WMTR requires 2.5V minimum. STMicroelectronics M24C02-DRDW3TP/K requires 1.8V minimum. Verify your application's minimum supply voltage against the selected substitute.

Q: Why does M24C02-DRDW3TP/K have different access time and write cycle specifications? A: M24C02-DRDW3TP/K is an enhanced automotive-grade variant with 1 MHz clock frequency operation. The 450 ns access time and 4 ms write cycle are superior performance characteristics compared to the primary part's 900 ns and 5 ms specifications. This part is backward compatible for applications requiring the primary part's performance level.

Q: What does "Not For New Designs" status mean? A: Parts marked "Not For New Designs" (BR24G02FVJ-3GTE2 and BR24T02FVJ-WE2) are legacy products that remain available for existing applications but should not be selected for new circuit designs. Use Active status alternatives instead.

Q: Is automotive qualification (AEC-Q100) necessary for my application? A: Automotive qualification is required only for automotive applications. BR24A02FVM-WMTR and M24C02-DRDW3TP/K carry AEC-Q100 qualification. For non-automotive applications, this certification is not necessary.

Q: Can I use parts with different package formats interchangeably? A: No. Package format changes require PCB redesign. The primary part uses 8-MSOP (0.118", 3.00mm width). Rohm alternatives using 8-TSSOP (0.173", 4.40mm width) or 8-VSSOP (0.110", 2.80mm width) have different footprints and pin spacing. Verify mechanical compatibility with your PCB layout before substitution.

Q: What is the significance of DiGi-Electronics programmability verification? A: DiGi-Electronics programmability verification indicates the part has been tested and confirmed to support programming operations through DiGi-Electronics' systems. Parts marked "Not Verified" have not undergone this specific verification process but remain functionally equivalent based on manufacturer specifications.

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