Equivalent & Substitute Parts for 24AA04H-I/MS

Part Overview

The 24AA04H-I/MS is a 4Kbit 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 designed for applications requiring small-capacity data storage with low-voltage operation (1.7V to 5.5V) and is supplied in 8-MSOP surface mount packaging. The part is currently active in production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the primary part experiences supply constraints, extended lead times, or when design requirements permit operation at higher clock frequencies or different voltage specifications while maintaining core functional compatibility.

Substiute Parts

24AA04H-I/MS

Microchip TechnologyIn Stock: 73824AA04H-I/MS Datasheet

Current PartRFQ

24AA044-I/MS

Microchip TechnologyIn Stock: 163424AA044-I/MS Datasheet

MFR RecommendedRFQ

24AA04-I/MS

Microchip TechnologyIn Stock: 169624AA04-I/MS Datasheet

Parametric EquivalentRFQ

BR24G04FVM-3AGTTR

Rohm SemiconductorIn Stock: 1276BR24G04FVM-3AGTTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24AA04H-I/MS is determined by the following critical parameters:

Core Compatibility Requirements:

• Memory capacity: 4Kbit (non-negotiable)
• Memory format: EEPROM technology
• Interface protocol: I2C bus standard
• Package type: 8-MSOP surface mount
• Operating temperature range: -40°C to 85°C minimum
• Supply voltage range: Must encompass or exceed 1.7V to 5.5V

Performance Flexibility:

• Clock frequency: 400 kHz or higher (higher frequencies are backward compatible)
• Access time: 900 ns or faster (faster access times are acceptable)
• Write cycle time: 5ms (standard across all candidates)

Substitute parts are grouped into two categories: parametric equivalents (identical electrical specifications) and manufacturer-recommended alternatives (enhanced performance specifications with maintained core functionality).

Parameter Comparison

Engineering Selection Recommendations

24AA04-I/MS (Parametric Equivalent) This Microchip Technology part is a direct parametric equivalent with identical electrical and timing specifications. Selection is appropriate when maintaining exact performance characteristics is required or when sourcing from the same manufacturer is preferred. All compliance certifications (ROHS3, REACH Unaffected, EAR99) match the primary part.

24AA044-I/MS (Enhanced Performance Substitute) This Microchip Technology part operates at 1 MHz clock frequency with 400 ns access time, representing improved performance over the 400 kHz specification. This part is suitable for applications where higher I2C bus speeds are beneficial and backward compatible with 400 kHz system designs. Electrical and compliance specifications remain equivalent to the primary part.

BR24G04FVM-3AGTTR (Cross-Manufacturer Substitute) This Rohm Semiconductor part provides 1 MHz operation with equivalent 4Kbit EEPROM capacity and I2C interface. The supply voltage range extends to 1.6V minimum (compared to 1.7V), offering broader low-voltage compatibility. This part is supplied in Tape & Reel packaging rather than Tube. Selection is appropriate when cross-manufacturer sourcing is acceptable and when lower minimum voltage operation is advantageous. All compliance certifications are equivalent.

Frequently Asked Questions (FAQ)

Q: Can 24AA04-I/MS be used as a direct replacement for 24AA04H-I/MS? A: Yes. The 24AA04-I/MS is a parametric equivalent with identical clock frequency (400 kHz), access time (900 ns), voltage range (1.7V to 5.5V), and package specifications. No design modifications are required.

Q: What is the advantage of using 24AA044-I/MS instead of the primary part? A: The 24AA044-I/MS operates at 1 MHz clock frequency with 400 ns access time, providing faster I2C bus operation. This is beneficial in systems requiring higher data transfer rates. The part remains backward compatible with 400 kHz designs.

Q: Is BR24G04FVM-3AGTTR compatible with the 24AA04H-I/MS? A: Yes, with packaging and sourcing considerations. The BR24G04FVM-3AGTTR provides equivalent 4Kbit EEPROM capacity, I2C interface, and 1 MHz operation. The minimum supply voltage is 1.6V (versus 1.7V), and the part is supplied in Tape & Reel packaging rather than Tube. PCB layout and assembly processes must accommodate the different packaging format.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, matching the environmental and regulatory requirements of the primary part.

Q: What is the memory organization difference between 24AA04H-I/MS and BR24G04FVM-3AGTTR? A: The 24AA04H-I/MS uses 256 x 8 x 2 organization, while BR24G04FVM-3AGTTR uses 512 x 8 organization. Both provide 4Kbit total capacity and are functionally equivalent for I2C EEPROM applications.

Q: Can these parts be used interchangeably in existing designs? A: Parametric equivalents (24AA04-I/MS) require no design changes. Enhanced performance parts (24AA044-I/MS, BR24G04FVM-3AGTTR) are backward compatible but may require verification of I2C bus pull-up resistor values and timing margins in systems operating at the lower 400 kHz specification. Cross-manufacturer substitutes require validation of PCB assembly compatibility with the specified packaging format.