Equivalent & Substitute Parts for 24AA02HT-I/MS

Part Overview

The 24AA02HT-I/MS is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface with 400 kHz clock frequency and 900 ns access time. This non-volatile memory device operates across a wide voltage range of 1.7V to 5.5V and temperature range of -40°C to 85°C, packaged in 8-MSOP surface mount configuration. The part is currently active and ROHS3 compliant. Equivalent and substitute parts are identified based on matching core electrical parameters and mechanical compatibility to support design flexibility and supply chain continuity.

Key Parameters

Parameter	24AA02HT-I/MS
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	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

Substitute Part Grouping Explanation

Substitute parts for the 24AA02HT-I/MS are classified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criteria are:

Core Electrical Parameters:

Memory capacity: 2Kbit
Memory organization: 256 x 8
Interface protocol: I2C
Clock frequency: 400 kHz (primary specification)
Access time: 900 ns
Write cycle time: 5 ms
Supply voltage range: minimum 1.7V, maximum 5.5V
Operating temperature range: -40°C to 85°C

Mechanical Compatibility:

Package type: 8-MSOP or 8-TSSOP
Surface mount configuration
Pin count: 8 pins

Compliance Requirements:

RoHS3 compliance
MSL rating: 1 (Unlimited)

Substitutes are grouped into three categories: Parametric Equivalents (identical electrical specifications and packaging), Manufacturer Recommended alternatives (equivalent function with minor parameter variations), and Not For New Designs (legacy parts with continued availability).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	Product Status
24AA02HT-I/MS	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
24AA02T-I/MS	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
24AA024T-I/MS	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-MSOP	Active
BR24A02FVM-WMTR	Rohm Semiconductor	2Kbit	400 kHz	Not specified	2.5V ~ 5.5V	-40°C ~ 105°C	8-MSOP	Active
BR24G02FVJ-3AGTE2	Rohm Semiconductor	2Kbit	1 MHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Active
BR24G02FVJ-3GTE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
BR24T02FVJ-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
M24C02-WDW6TP	STMicroelectronics	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Not For New Designs
M34E02-FDW1TP	STMicroelectronics	2Kbit	400 kHz	900 ns	1.7V ~ 3.6V	0°C ~ 70°C	8-TSSOP	Not For New Designs

Engineering Selection Recommendations

Preferred Substitutes (Active Status):

24AA02T-I/MS and 24AA024T-I/MS from Microchip Technology are direct parametric equivalents with identical electrical specifications and packaging. Both parts are active products with verified DiGi-Electronics programmability status and higher inventory availability (10,400 and 1,972 units respectively). These represent the lowest-risk substitution path for the 24AA02HT-I/MS.

BR24A02FVM-WMTR from Rohm Semiconductor is an active manufacturer-recommended alternative with equivalent 2Kbit capacity and 400 kHz I2C interface. This part features an extended operating temperature range (-40°C to 105°C) and automotive-grade qualification (AEC-Q100), making it suitable for applications requiring enhanced temperature performance. The voltage supply range is narrower (2.5V to 5.5V) compared to the primary part.

BR24G02FVJ-3AGTE2 from Rohm Semiconductor is an active alternative with higher clock frequency capability (1 MHz) and lower minimum supply voltage (1.6V). This part accommodates designs requiring faster I2C communication speeds while maintaining 2Kbit capacity and 8-pin surface mount configuration.

Legacy Substitutes (Not For New Designs):

BR24G02FVJ-3GTE2, BR24T02FVJ-WE2, M24C02-WDW6TP, and M34E02-FDW1TP are marked as Not For New Designs. These parts maintain functional equivalence for 2Kbit I2C EEPROM applications but should not be selected for new circuit designs. M34E02-FDW1TP has a restricted operating temperature range (0°C to 70°C) and narrower voltage window (1.7V to 3.6V), limiting its applicability.

All substitute parts maintain ROHS3 compliance, MSL rating of 1 (Unlimited), and EAR99 export classification consistent with the primary part.

Frequently Asked Questions (FAQ)

Q: Can 24AA02T-I/MS directly replace 24AA02HT-I/MS in existing designs?

A: Yes. Both parts are Microchip Technology products with identical electrical parameters (2Kbit capacity, 400 kHz I2C, 900 ns access time, 1.7V to 5.5V supply range, -40°C to 85°C operating temperature) and 8-MSOP packaging. The primary difference is packaging format (Tape & Reel versus Cut Tape & Digi-Reel), which does not affect functional compatibility.

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

A: Both parts are parametric equivalents with identical electrical specifications and 8-MSOP packaging. The base product numbers differ (24AA024 versus 24AA02), but this reflects internal Microchip product line designation without affecting functional performance or pin compatibility.

Q: Can BR24A02FVM-WMTR be used in applications requiring 1.7V minimum supply voltage?

A: No. BR24A02FVM-WMTR has a minimum supply voltage of 2.5V, which exceeds the 1.7V minimum of the primary part. This substitute is suitable only for designs with supply voltages of 2.5V or higher. For applications requiring 1.7V operation, use 24AA02T-I/MS or 24AA024T-I/MS.

Q: What advantage does BR24G02FVJ-3AGTE2 offer over the primary part?

A: BR24G02FVJ-3AGTE2 supports 1 MHz I2C clock frequency compared to 400 kHz for the primary part, enabling faster data transfer rates. It also has a lower minimum supply voltage (1.6V versus 1.7V). However, it uses 8-TSSOP packaging instead of 8-MSOP, requiring PCB layout modifications.

Q: Are legacy parts (Not For New Designs) suitable for replacement applications?

A: Legacy parts maintain functional equivalence for 2Kbit I2C EEPROM applications and can be used as replacements in existing systems. However, they should not be selected for new circuit designs due to discontinued or limited production status. For new designs, select from active products: 24AA02T-I/MS, 24AA024T-I/MS, BR24A02FVM-WMTR, or BR24G02FVJ-3AGTE2.

Q: Does package type affect electrical compatibility?

A: No. Both 8-MSOP and 8-TSSOP packages maintain identical pin configurations and electrical functionality for I2C EEPROM devices. Package selection depends on PCB layout constraints and manufacturing capabilities. Switching between package types requires PCB redesign but does not affect circuit operation.

Q: What is the significance of AEC-Q100 qualification on BR24A02FVM-WMTR?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. This certification is relevant only for automotive applications. For non-automotive applications, this qualification provides no functional advantage.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message