Equivalent & Substitute Parts for 24C65T/SM

Part Overview

The 24C65T/SM is a 64Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface communication at 400 kHz with 8-SOIJ packaging. This non-volatile memory device operates across a supply voltage range of 4.5V to 6V and is designed for applications requiring persistent data storage with fast access times of 900 ns. The part is Active status and ROHS3 compliant, making it suitable for modern electronic designs. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative packaging or performance requirements while maintaining functional compatibility.

Substiute Parts

24C65T/SM

Microchip TechnologyIn Stock: 319124C65T/SM Datasheet

Current PartRFQ

24C65/SM

Microchip TechnologyIn Stock: 171324C65/SM Datasheet

DirectRFQ

24C65T-I/SM

Microchip TechnologyIn Stock: 186724C65T-I/SM Datasheet

MFR RecommendedRFQ

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

BR24L64F-WE2

Rohm SemiconductorIn Stock: 18673BR24L64F-WE2 Datasheet

MFR RecommendedRFQ

BR24T64F-WE2

Rohm SemiconductorIn Stock: 17763BR24T64F-WE2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24C65T/SM is determined by the following critical parameters: memory size (64Kbit), memory organization (8K x 8), I2C interface protocol, and surface mount packaging. All substitute parts listed maintain these core functional specifications. Secondary parameters including clock frequency, voltage supply range, operating temperature, and package dimensions are evaluated to determine substitution tier and application suitability.

Microchip Technology 24-series parts (24C65/SM, 24C65T-I/SM, 24LC65T-I/SM) provide direct functional equivalence with variations in packaging format and temperature rating. Rohm Semiconductor BR24-series parts (BR24G64F-3AGTE2, BR24G64F-3GTE2, BR24L64F-WE2, BR24T64F-WE2) offer equivalent memory capacity and I2C interface with extended voltage supply ranges and alternative package dimensions.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring strict compatibility with the original 24C65T/SM specification, the 24C65/SM and 24C65T-I/SM provide direct substitution with identical package dimensions and voltage supply requirements. The 24C65T-I/SM extends operating temperature range to -40°C ~ 85°C, suitable for industrial environments.

The 24LC65T-I/SM offers expanded voltage supply range (2.5V ~ 6.0V) while maintaining identical package and clock frequency specifications, providing flexibility for low-voltage applications.

Rohm Semiconductor BR24-series parts (BR24G64F-3GTE2, BR24L64F-WE2, BR24T64F-WE2) maintain 400 kHz clock frequency and 64Kbit capacity with reduced package dimensions (0.173", 4.40mm width versus 0.209", 5.30mm). These parts feature extended voltage supply ranges (1.6V ~ 5.5V or 1.8V ~ 5.5V) and are suitable for space-constrained designs. BR24L64F-WE2 carries DiGi-Electronics Programmable verification status.

BR24G64F-3AGTE2 operates at 1 MHz clock frequency, providing enhanced performance for applications requiring faster I2C communication speeds, with extended voltage supply range (1.7V ~ 5.5V).

All substitute parts maintain ROHS3 compliance, non-volatile EEPROM technology, and 8K x 8 memory organization. Selection should account for package footprint compatibility, voltage supply requirements, temperature operating range, and clock frequency specifications relative to system design constraints.

Frequently Asked Questions (FAQ)

Q: Can BR24-series parts directly replace the 24C65T/SM in existing PCB designs?

A: BR24-series parts maintain functional equivalence in memory capacity, I2C interface, and clock frequency. However, package dimensions differ (0.173" versus 0.209" width), requiring PCB layout verification. Voltage supply ranges are extended, providing compatibility with the 4.5V ~ 6V requirement of the original part.

Q: What is the primary difference between 24C65T/SM and 24LC65T-I/SM?

A: Both parts share identical package dimensions, clock frequency, and I2C interface. The 24LC65T-I/SM supports lower minimum supply voltage (2.5V versus 4.5V) and extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C), making it suitable for wider application environments.

Q: Is the BR24G64F-3AGTE2 compatible with systems designed for 400 kHz I2C operation?

A: The BR24G64F-3AGTE2 operates at 1 MHz clock frequency. While I2C protocol remains compatible, systems designed for 400 kHz operation will function at the higher frequency. Verify system I2C controller capability to support 1 MHz operation before substitution.

Q: What packaging format differences exist among substitute parts?

A: Microchip 24-series parts are supplied in 8-SOIJ packaging (0.209", 5.30mm width). Rohm BR24-series parts use 8-SOP packaging (0.173", 4.40mm width). Both are surface mount configurations; PCB footprint compatibility must be confirmed during design integration.

Q: Which substitute part offers the lowest minimum supply voltage?

A: The BR24G64F-3AGTE2 supports minimum supply voltage of 1.7V, followed by BR24G64F-3GTE2 and BR24T64F-WE2 at 1.6V. The 24LC65T-I/SM supports 2.5V minimum. Original 24C65T/SM requires minimum 4.5V.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts maintain ROHS3 compliance status, consistent with the original 24C65T/SM specification.