24LC65T/SM EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC65T/SM is a 64Kbit I2C EEPROM memory IC manufactured by Microchip Technology, supplied in Tape & Reel packaging with an 8-SOIJ package configuration. This non-volatile memory device operates at 400 kHz clock frequency with 900 ns access time and supports supply voltages from 2.5V to 6.0V. The part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching core electrical specifications: 64Kbit memory capacity, 8K x 8 organization, I2C interface, and compatible operating parameters. Substitutes may differ in clock frequency, supply voltage range, operating temperature range, or package dimensions while maintaining functional equivalence for most applications.

Substiute Parts

24LC65T/SM

Microchip TechnologyIn Stock: 524524LC65T/SM Datasheet

Current PartRFQ

24LC65T-I/SM

Microchip TechnologyIn Stock: 302024LC65T-I/SM Datasheet

MFR RecommendedRFQ

BR24G64F-3AGTE2

Rohm SemiconductorIn Stock: 2907BR24G64F-3AGTE2 Datasheet

MFR RecommendedRFQ

BR24G64F-3GTE2

Rohm SemiconductorIn Stock: 3357BR24G64F-3GTE2 Datasheet

MFR RecommendedRFQ

BR24T64F-WE2

Rohm SemiconductorIn Stock: 17763BR24T64F-WE2 Datasheet

MFR RecommendedRFQ

BR24T64FJ-WE2

Rohm SemiconductorIn Stock: 4938BR24T64FJ-WE2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following core parameters:

• Memory capacity: 64Kbit (non-negotiable)
• Memory organization: 8K x 8 (non-negotiable)
• Interface protocol: I2C (non-negotiable)
• Write cycle time: 5ms (non-negotiable)
• Mounting type: Surface Mount (non-negotiable)
• Package family: 8-SOIC variants (pin-compatible within dimensional tolerance)

Acceptable variations in substitute parts:

• Clock frequency: 400 kHz or higher (1 MHz acceptable)
• Supply voltage range: May be narrower or wider than 2.5V ~ 6.0V
• Operating temperature range: May extend beyond 0°C ~ 70°C
• Package dimensions: 8-SOIC variants with different widths (0.173", 0.154", or 0.209")
• Access time: 900 ns or faster

All substitute parts listed maintain ROHS3 compliance and Active product status.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and Active product status, meeting regulatory requirements equivalent to the 24LC65T/SM.

24LC65T-I/SM is the primary Microchip Technology substitute, offering identical electrical specifications with extended operating temperature range (-40°C ~ 85°C) compared to the base part (0°C ~ 70°C). This part is suitable for applications requiring wider temperature operation while maintaining the same package footprint and supply voltage range.

BR24G64F-3GTE2 and BR24T64F-WE2 are Rohm Semiconductor alternatives with matching 400 kHz clock frequency. Both support narrower supply voltage range (1.6V ~ 5.5V) and extended operating temperature (-40°C ~ 85°C). Package dimensions differ (0.173", 4.40mm width versus 0.209", 5.30mm), requiring PCB layout verification for pin-to-pin compatibility.

BR24G64F-3AGTE2 operates at 1 MHz clock frequency, providing faster I2C communication capability. Supply voltage range is 1.7V ~ 5.5V with extended operating temperature. Package width is 0.173", 4.40mm.

BR24T64FJ-WE2 features the most compact package (0.154", 3.90mm width) with 400 kHz operation and 1.6V ~ 5.5V supply range. This variant is suitable for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can BR24G64F-3AGTE2 replace 24LC65T/SM in all applications?

A: BR24G64F-3AGTE2 maintains 64Kbit capacity, 8K x 8 organization, I2C interface, and 5ms write cycle time. However, it operates at 1 MHz clock frequency versus 400 kHz, and package width differs (0.173" versus 0.209"). Verify PCB layout compatibility and confirm that higher clock frequency does not introduce timing conflicts in your application.

Q: What is the primary difference between BR24T64F-WE2 and BR24T64FJ-WE2?

A: Both parts are Rohm Semiconductor BR24T64 base products with identical electrical specifications (64Kbit, 400 kHz, 1.6V ~ 5.5V, -40°C ~ 85°C). The difference is package width: BR24T64F-WE2 is 0.173" (4.40mm) while BR24T64FJ-WE2 is 0.154" (3.90mm). Select based on PCB footprint requirements.

Q: Is 24LC65T-I/SM a direct replacement for 24LC65T/SM?

A: 24LC65T-I/SM is functionally equivalent with identical package, supply voltage range (2.5V ~ 6.0V), and clock frequency (400 kHz). The primary difference is extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C). This part is suitable as a direct replacement with enhanced temperature performance.

Q: Can I use a substitute with narrower supply voltage range?

A: Rohm Semiconductor substitutes (BR24G64F, BR24T64F series) support 1.6V ~ 5.5V or 1.7V ~ 5.5V ranges, which are narrower than the 24LC65T/SM range of 2.5V ~ 6.0V. Verify your application's supply voltage operates within the substitute's specified range before selection.

Q: Are all substitute parts available in the same packaging format?

A: No. The 24LC65T/SM is supplied in Tape & Reel (TR) with 8-SOIJ package. Substitutes are also Tape & Reel but use 8-SOP or 8-SOP-J package variants with different widths. Confirm packaging compatibility with your assembly process and PCB design.