24AA128SC-I/W16K EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24AA128SC-I/W16K is a 128Kbit I2C EEPROM memory IC manufactured by Microchip Technology, designed for non-volatile data storage applications requiring serial communication. This die-format component operates at 400 kHz I2C clock frequency with 900 ns access time and supports a wide supply voltage range of 1.7V to 5.5V. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and operating conditions are maintained across alternative manufacturers.

Substiute Parts

24AA128SC-I/W16K

Microchip TechnologyIn Stock: 78124AA128SC-I/W16K Datasheet

Current PartRFQ

BR24S128FVT-WE2

Rohm SemiconductorIn Stock: 3845BR24S128FVT-WE2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24AA128SC-I/W16K is determined by strict equivalence across the following critical parameters:

• Memory capacity: 128Kbit (16K x 8 organization)
• Serial interface protocol: I2C
• Clock frequency: 400 kHz minimum
• Access time: 900 ns or faster
• Supply voltage range: 1.7V to 5.5V minimum
• Operating temperature range: -40°C to 85°C minimum
• Non-volatile EEPROM technology
• ROHS3 compliance and REACH unaffected status

The substitute part BR24S128FVT-WE2 from Rohm Semiconductor meets all electrical and functional equivalence criteria. Packaging differences (die format versus 8-TSSOP-B) do not affect electrical substitution eligibility but require mechanical integration assessment during component selection.

Parameter Comparison

Engineering Selection Recommendations

Both the 24AA128SC-I/W16K and BR24S128FVT-WE2 maintain active production status with full ROHS3 compliance and REACH unaffected certification. Selection between these parts is based on packaging requirements and application constraints. The Microchip part is supplied as a die format, suitable for direct die-attach applications. The Rohm substitute is packaged in 8-TSSOP-B format with tape and reel packaging, appropriate for automated assembly processes. Electrical functionality and performance specifications are equivalent across both parts for I2C EEPROM applications operating within the specified voltage and temperature ranges.

Frequently Asked Questions (FAQ)

Q: Can BR24S128FVT-WE2 directly replace 24AA128SC-I/W16K in all applications?

A: Electrical substitution is valid. However, packaging format differs: 24AA128SC-I/W16K is supplied as a die, while BR24S128FVT-WE2 is an 8-TSSOP-B packaged component. Mechanical integration and PCB layout requirements must be assessed for your specific application.

Q: What are the critical parameters that define substitution eligibility?

A: Memory capacity (128Kbit), memory organization (16K x 8), I2C interface, 400 kHz clock frequency, 1.7V to 5.5V supply voltage range, -40°C to 85°C operating temperature, and ROHS3 compliance are the determining factors for equivalent substitution.

Q: Are there differences in I2C protocol implementation between these parts?

A: Both parts implement standard I2C protocol at 400 kHz. No protocol differences are specified in the provided technical data.

Q: What is the significance of the packaging difference?

A: The 24AA128SC-I/W16K die format requires direct die-attach assembly, while the BR24S128FVT-WE2 8-TSSOP-B package is suitable for standard surface-mount assembly. Component selection depends on your manufacturing process and PCB design requirements.

Q: Are both parts suitable for the full -40°C to 85°C temperature range?

A: Yes, both parts are specified for -40°C to 85°C operating temperature range.