Equivalent & Substitute Parts for 24AA01T-I/MS

Part Overview

The 24AA01T-I/MS is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 8-MSOP surface mount packaging. This non-volatile memory device operates across a supply voltage range of 1.7V to 5.5V and temperature range of -40°C to 85°C, making it suitable for embedded systems requiring persistent data storage in compact form factors.

The part is currently in active product status. Equivalent and substitute parts are identified based on matching core electrical specifications and compatible packaging configurations, enabling design flexibility and supply chain alternatives.

Substiute Parts

24AA01T-I/MS

Microchip TechnologyIn Stock: 100724AA01T-I/MS Datasheet

Current PartRFQ

24AA01-I/MS

Microchip TechnologyIn Stock: 184424AA01-I/MS Datasheet

DirectRFQ

BR24G01FVJ-3GTE2

Rohm SemiconductorIn Stock: 5015BR24G01FVJ-3GTE2 Datasheet

MFR RecommendedRFQ

BR24G01FVM-3AGTTR

Rohm SemiconductorIn Stock: 3898BR24G01FVM-3AGTTR Datasheet

MFR RecommendedRFQ

M24C01-RDW6TP

STMicroelectronicsIn Stock: 53202M24C01-RDW6TP Datasheet

MFR RecommendedRFQ

M24C01-WDW6TP

STMicroelectronicsIn Stock: 111137M24C01-WDW6TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24AA01T-I/MS are qualified based on the following criteria:

Core Electrical Compatibility:

• Memory capacity: 1Kbit (128 x 8 organization)
• Interface protocol: I2C
• Clock frequency: 400 kHz minimum
• Write cycle time: 5ms
• Supply voltage range: Must encompass or overlap with 1.7V ~ 5.5V
• Operating temperature: -40°C ~ 85°C

Mechanical Compatibility:

• Surface mount technology
• Package type: 8-MSOP or 8-TSSOP (0.118" width, 3.00mm or 4.40mm width variants)

Regulatory Compliance:

• RoHS3 compliance required
• REACH unaffected status

Substitutes are grouped by manufacturer and packaging configuration. Parts meeting all electrical parameters within specified tolerances are considered direct functional equivalents.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Microchip Technology): The 24AA01-I/MS is a direct functional equivalent differing only in packaging format (Tube vs. Tape & Reel). Both parts maintain identical electrical specifications and active product status. Selection between these variants depends on procurement and assembly requirements.

Active Status Alternatives: The BR24G01FVM-3AGTTR (Rohm Semiconductor) and M24C01-RDW6TP (STMicroelectronics) are active products meeting core electrical requirements. The BR24G01FVM-3AGTTR operates at 1 MHz clock frequency, exceeding the 400 kHz specification. The M24C01-RDW6TP provides faster access time (900 ns vs. 3500 ns) and maintains 400 kHz operation.

Discontinued or Legacy Status: The BR24G01FVJ-3GTE2 and M24C01-WDW6TP carry "Not For New Designs" status. These parts remain functionally compatible but should not be selected for new product development. The M24C01-WDW6TP additionally restricts minimum supply voltage to 2.5V, narrowing compatibility with low-voltage applications.

All substitute candidates maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the primary part.

Frequently Asked Questions (FAQ)

Q: Can the 24AA01-I/MS replace the 24AA01T-I/MS in production? A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications. The difference is packaging format: 24AA01-I/MS uses Tube packaging while 24AA01T-I/MS uses Tape & Reel. Compatibility depends on assembly equipment and procurement logistics.

Q: What is the impact of using BR24G01FVM-3AGTTR with its 1 MHz clock frequency instead of 400 kHz? A: The 1 MHz clock frequency is a superset capability. I2C bus operation at 400 kHz remains fully supported. The higher frequency rating indicates the device can operate at faster speeds but does not affect compatibility at 400 kHz operation. Voltage supply range (1.6V ~ 5.5V) is slightly lower than the primary part (1.7V ~ 5.5V).

Q: Are M24C01-RDW6TP and M24C01-WDW6TP interchangeable? A: Both are STMicroelectronics 1Kbit I2C EEPROM devices in 8-TSSOP packaging with 400 kHz operation. The M24C01-WDW6TP has restricted minimum supply voltage (2.5V vs. 1.8V) and carries "Not For New Designs" status. For new applications, M24C01-RDW6TP is the preferred choice.

Q: What packaging differences exist between substitute options? A: The primary part uses 8-MSOP (0.118", 3.00mm width). Substitutes include 8-TSSOP (0.173", 4.40mm width) variants from Rohm and STMicroelectronics, and 8-MSOP variants from Rohm. Package selection affects PCB layout and assembly compatibility. Verify footprint compatibility before design implementation.

Q: Why is BR24G01FVJ-3GTE2 marked "Not For New Designs"? A: This designation indicates the manufacturer has discontinued active development and recommends alternative parts for new product designs. While functionally compatible, this part should not be selected for new applications due to potential future availability constraints.

Q: Do all substitutes maintain the same access time specification? A: No. The primary part specifies 3500 ns access time. The M24C01 series from STMicroelectronics specifies 900 ns, providing faster response. Rohm BR24G01 series does not specify access time in provided documentation. Verify access time requirements for timing-critical applications before substitution.