24LC024T/SN Equivalent & Substitute Parts

Part Overview

The 24LC024T/SN 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 non-volatile memory device operates across a 2.5V to 5.5V supply voltage range with 0°C to 70°C operating temperature specification. The part is ROHS3 compliant and actively produced. Substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional equivalence in circuit applications.

Key Parameters

Parameter	24LC024T/SN
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 24LC024T/SN are grouped based on the following critical parameters that determine functional equivalence:

Core Substitution Criteria:

Memory Size: 2Kbit (256 x 8 organization)
Memory Interface: I2C protocol
Package Type: 8-SOIC surface mount
Clock Frequency: 400 kHz or higher
Access Time: 900 ns or faster
Write Cycle Time: 5ms
Supply Voltage: Must support 2.5V minimum
RoHS Compliance: ROHS3 Compliant

Substitutes are categorized by packaging format (Tape & Reel, Cut Tape & Digi-Reel, Tube) and operating temperature range. Parts with extended temperature ranges (-40°C to 85°C or -40°C to 125°C) are compatible with the base specification but offer broader environmental operation. Parts with faster clock frequencies (1 MHz) maintain backward compatibility with 400 kHz I2C bus operation.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temperature	Package	Packaging Format	RoHS Status
24LC024T/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tape & Reel	ROHS3
24LC024/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tube	ROHS3
24AA024T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	ROHS3
24AA025T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	ROHS3
24AA02T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	ROHS3
24AA02T/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tape & Reel	ROHS3
24LC024HT-I/SN	Microchip Technology	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	ROHS3
24LC024T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	ROHS3
24LC02B-I/SNG	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	ROHS3
24LC02BT-E/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Cut Tape & Digi-Reel	ROHS3
24LC02BT-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	ROHS3

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications): 24LC024/SN serves as a direct substitute with identical electrical and memory specifications, differing only in packaging format (Tube vs. Tape & Reel).

Extended Temperature Range Substitutes: 24LC024T-I/SN, 24LC02B-I/SNG, and 24LC02BT-I/SN provide identical core functionality with extended operating temperature range (-40°C to 85°C), suitable for applications requiring broader thermal operation while maintaining the 2.5V to 5.5V supply specification.

Enhanced Speed Substitute: 24LC024HT-I/SN operates at 1 MHz clock frequency with 400 ns access time, providing faster I2C communication while maintaining 2Kbit capacity and 8-SOIC packaging. This part is backward compatible with 400 kHz I2C bus systems.

Lower Voltage Supply Substitutes: 24AA024T-I/SN, 24AA025T-I/SN, and 24AA02T-I/SN support 1.7V minimum supply voltage, enabling operation in low-power applications. These parts maintain 2Kbit capacity and 400 kHz I2C interface with extended temperature ranges.

Packaging Format Considerations: All substitutes maintain 8-SOIC surface mount package geometry. Selection between Tape & Reel, Cut Tape & Digi-Reel, and Tube formats depends on assembly process requirements and volume specifications, not functional compatibility.

Compliance Status: All listed substitutes maintain ROHS3 compliance and active product status, ensuring continued availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can 24LC024/SN replace 24LC024T/SN in production? A: Yes. Both parts share identical electrical specifications, memory capacity, I2C interface, and 8-SOIC packaging. The difference is packaging format: 24LC024/SN uses Tube packaging while 24LC024T/SN uses Tape & Reel. Selection depends on assembly equipment compatibility.

Q: Is 24LC024HT-I/SN compatible with 400 kHz I2C bus systems? A: Yes. The 24LC024HT-I/SN operates at 1 MHz maximum clock frequency but is backward compatible with slower I2C bus speeds including 400 kHz. It provides faster access time (400 ns vs. 900 ns) while maintaining functional equivalence.

Q: What is the difference between 24AA02T-I/SN and 24LC024T/SN? A: Both are 2Kbit I2C EEPROM devices in 8-SOIC packaging with 400 kHz operation. The 24AA02T-I/SN supports lower minimum supply voltage (1.7V vs. 2.5V) and extended temperature range (-40°C to 85°C vs. 0°C to 70°C), making it suitable for low-power and industrial temperature applications.

Q: Can I use 24LC02BT-E/SN in place of 24LC024T/SN? A: Yes, with extended temperature capability. The 24LC02BT-E/SN maintains identical memory capacity, I2C interface, and 8-SOIC packaging but operates across -40°C to 125°C, providing broader thermal range for demanding environments.

Q: Are all substitutes ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status, ensuring regulatory alignment and environmental standards adherence.

Q: What packaging formats are available for 2Kbit I2C EEPROM substitutes? A: Substitutes are available in three packaging formats: Tape & Reel (TR) for automated assembly, Cut Tape & Digi-Reel (CT) for flexible volume requirements, and Tube for manual or lower-volume applications. All maintain identical 8-SOIC case geometry.

Q: Does supply voltage range affect I2C bus compatibility? A: No. I2C bus compatibility depends on clock frequency and interface protocol, not supply voltage range. Parts with lower minimum voltage (1.7V) are compatible with systems using higher voltages (2.5V to 5.5V) through proper level shifting if required by system design.

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