AT24C02AN-10SC-2.7 Equivalent & Substitute Parts

Part Overview

The AT24C02AN-10SC-2.7 is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface with 400 kHz clock frequency and 8-SOIC surface mount packaging. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility across memory capacity, interface protocol, and electrical specifications while accommodating variations in operating temperature ranges and supply voltage tolerances.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Write Cycle Time	5ms
Access Time	900 ns
Voltage Supply Range	2.7V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Mounting Type	Surface Mount
Package	8-SOIC

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following core parameters: 2Kbit memory capacity, 256 x 8 organization, I2C interface protocol, 400 kHz clock frequency, and 5ms write cycle time. All substitute parts must support these specifications without deviation. Package compatibility requires 8-SOIC or equivalent 8-pin surface mount configurations. Voltage supply range and operating temperature range variations are permitted provided the substitute part's range encompasses or exceeds the original specification. Access time of 900 ns is maintained across all qualified substitutes. RoHS3 compliance and REACH unaffected status are standard across active substitute parts.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Interface	Clock Freq	Voltage Supply	Temp Range	Package	Status	RoHS
AT24C02AN-10SC-2.7	Microchip	2Kbit	I2C	400 kHz	2.7V ~ 5.5V	0°C ~ 70°C	8-SOIC	Obsolete	Non-compliant
24AA02/SN	Microchip	2Kbit	I2C	400 kHz	1.7V ~ 5.5V	0°C ~ 70°C	8-SOIC	Active	ROHS3
24LC025-E/SN	Microchip	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Active	ROHS3
BR24C02-MN6TP	Rohm	2Kbit	I2C	400 kHz	4.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Not For New Designs	ROHS3
BR24G02F-3GTE2	Rohm	2Kbit	I2C	400 kHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	ROHS3
BR24G02FJ-3GTE2	Rohm	2Kbit	I2C	400 kHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	ROHS3
BR24L02F-WE2	Rohm	2Kbit	I2C	400 kHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	ROHS3
BR24L02FJ-WE2	Rohm	2Kbit	I2C	400 kHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	ROHS3
CAV24C02WE-GT3	onsemi	2Kbit	I2C	400 kHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Active	ROHS3
M24C02-FMN6TP	STMicroelectronics	2Kbit	I2C	400 kHz	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	ROHS3
M24C02-RMN6P	STMicroelectronics	2Kbit	I2C	400 kHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active	ROHS3

Engineering Selection Recommendations

For new designs, prioritize active status parts with ROHS3 compliance. The 24AA02/SN from Microchip provides direct functional equivalence with extended lower voltage tolerance (1.7V minimum) while maintaining identical temperature range to the original AT24C02AN-10SC-2.7. The 24LC025-E/SN offers expanded operating temperature range (-40°C to 125°C) suitable for industrial applications. BR24G02FJ-3GTE2 and BR24L02FJ-WE2 from Rohm provide active status with verified programmability and extended temperature ranges. M24C02-FMN6TP from STMicroelectronics offers verified programmability with 1.7V minimum supply voltage. CAV24C02WE-GT3 from onsemi includes automotive qualification (AEC-Q100) for applications requiring automotive-grade components. BR24C02-MN6TP is not recommended for new designs despite active inventory.

Frequently Asked Questions (FAQ)

Q: Can 24AA02/SN directly replace AT24C02AN-10SC-2.7? A: Yes. Both parts share identical 2Kbit capacity, 256 x 8 organization, I2C interface, 400 kHz clock frequency, 5ms write cycle time, and 8-SOIC packaging. The 24AA02/SN extends lower voltage tolerance to 1.7V and maintains the same 0°C to 70°C operating range. RoHS3 compliance of the substitute is an improvement over the non-compliant original.

Q: What is the difference between BR24G02F-3GTE2 and BR24G02FJ-3GTE2? A: Both parts are functionally equivalent with identical electrical specifications. The primary difference is package designation: BR24G02F-3GTE2 uses 8-SOP packaging (0.173" width), while BR24G02FJ-3GTE2 uses 8-SOP-J packaging (0.154" width). Verify PCB footprint compatibility before selection.

Q: Why is BR24C02-MN6TP marked "Not For New Designs"? A: Although BR24C02-MN6TP meets all functional requirements and maintains ROHS3 compliance, its product status designation indicates it is not recommended for new design implementations. Active alternatives with equivalent specifications are available.

Q: Does operating temperature range affect substitution eligibility? A: Operating temperature range variations are permitted provided the substitute part's range encompasses the original specification. The original AT24C02AN-10SC-2.7 operates 0°C to 70°C. Substitutes with ranges such as -40°C to 85°C or -40°C to 125°C are compatible for this application.

Q: What is the significance of CAV24C02WE-GT3 automotive qualification? A: CAV24C02WE-GT3 carries AEC-Q100 automotive qualification, indicating compliance with automotive industry reliability and quality standards. This part is suitable for automotive applications requiring qualified components, while other substitutes are suitable for general industrial and consumer applications.

Q: Are all substitute parts available in the same packaging? A: All substitute parts use 8-pin surface mount configurations. Most use standard 8-SOIC (0.154" width). BR24G02F-3GTE2 and BR24L02F-WE2 use 8-SOIC (0.173" width). Verify PCB footprint compatibility with your specific design requirements.

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