24LC024T-I/SN EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC024T-I/SN is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, supplied in Cut Tape (CT) & Digi-Reel® packaging. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and supports a supply voltage range of 2.5V to 5.5V across an operating temperature range of -40°C to 85°C. The device is ROHS3 compliant and actively produced. Equivalent and substitute parts are identified based on matching electrical specifications, memory organization, interface protocol, and physical packaging compatibility within the 8-SOIC form factor.

Key Parameters

Parameter	24LC024T-I/SN
Manufacturer	Microchip Technology
Memory Type	Non-Volatile EEPROM
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5 ms
Supply Voltage	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Packaging Format	Cut Tape (CT) & Digi-Reel®
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

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

Primary Substitution Criteria:

Memory Size: 2Kbit (256 x 8 organization)
Memory Interface: I2C protocol
Package / Case: 8-SOIC form factor
Mounting Type: Surface Mount
Supply Voltage Range: Must encompass or be compatible with 2.5V ~ 5.5V
Operating Temperature: Must support -40°C ~ 85°C minimum
Clock Frequency: 400 kHz or higher
Access Time: 900 ns or faster
Write Cycle Time: 5 ms or faster

Substitution Categories:

Category 1: Direct Equivalents (Identical Specifications) Parts with matching memory size, I2C interface, 400 kHz clock frequency, 900 ns access time, 8-SOIC package, and identical voltage/temperature ranges.

Category 2: Enhanced Performance Variants Parts with identical memory organization and interface but higher clock frequency (1 MHz) or faster access time (400 ns), maintaining backward compatibility.

Category 3: Extended Temperature Range Variants Parts with identical electrical specifications but extended operating temperature to -40°C ~ 125°C, suitable for industrial applications.

Category 4: Voltage-Extended Variants Parts with lower minimum supply voltage (1.7V vs 2.5V), providing broader voltage compatibility while maintaining all other specifications.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Supply Voltage	Operating Temp	Package	Packaging Format	MSL Rating	Product Status
24LC024T-I/SN	Microchip	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	3	Active
24LC024-I/SN	Microchip	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	1	Active
24AA024-I/SN	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	1	Active
24AA024T-I/SN	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	3	Active
24AA025T-I/SN	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	1	Active
24AA02H-I/SN	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	1	Active
24AA02T-I/SN	Microchip	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	1	Active
24LC024-E/SN	Microchip	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Tube	3	Active
24LC024H-E/SN	Microchip	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Tube	1	Active
24LC024H-I/SN	Microchip	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	1	Active
24LC024HT-I/SN	Microchip	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	1	Active

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): The 24LC024-I/SN serves as the direct equivalent to 24LC024T-I/SN, with identical electrical and thermal specifications. The primary difference is packaging format (Tube vs. Cut Tape & Digi-Reel). Both are ROHS3 compliant and actively produced. Selection depends on assembly process requirements and tape reel compatibility.

For Enhanced Performance Applications: The 24LC024H-I/SN and 24LC024HT-I/SN offer 1 MHz clock frequency and 400 ns access time while maintaining the same 2.5V ~ 5.5V supply range and -40°C ~ 85°C operating temperature. These variants are backward compatible and suitable for applications requiring faster I2C communication. The 24LC024HT-I/SN is supplied in Tape & Reel format, matching the original packaging preference.

For Extended Temperature Range: The 24LC024-E/SN and 24LC024H-E/SN extend the operating temperature to -40°C ~ 125°C, suitable for industrial and automotive applications. Both maintain ROHS3 compliance. The 24LC024H-E/SN combines extended temperature with enhanced 1 MHz performance.

For Low-Voltage Applications: The 24AA024-I/SN, 24AA024T-I/SN, 24AA025T-I/SN, 24AA02H-I/SN, and 24AA02T-I/SN support a minimum supply voltage of 1.7V, enabling operation in battery-powered and low-power systems. All maintain 2Kbit capacity, I2C interface, and -40°C ~ 85°C temperature range. The 24AA02T-I/SN matches the Cut Tape & Digi-Reel packaging format of the original part.

Compliance and Certification: All listed substitute parts are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification. Product status is Active for all variants, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can I use 24LC024-I/SN as a direct replacement for 24LC024T-I/SN? A: Yes. Both parts have identical electrical specifications, memory organization, I2C interface, and thermal operating range. The difference is packaging format: 24LC024-I/SN is supplied in Tube format while 24LC024T-I/SN is Cut Tape & Digi-Reel. Verify your assembly equipment compatibility with the packaging format before substitution.

Q: What is the difference between 24LC024 and 24AA024 series? A: The primary difference is supply voltage range. 24LC024 operates from 2.5V to 5.5V, while 24AA024 operates from 1.7V to 5.5V. All other specifications—memory size, I2C interface, clock frequency, access time, and package—are identical. Use 24AA024 variants for applications requiring lower minimum supply voltage.

Q: Are the 24LC024H variants backward compatible with 24LC024? A: Yes. The 24LC024H variants operate at 1 MHz clock frequency with 400 ns access time, compared to 400 kHz and 900 ns for standard 24LC024. Higher performance is backward compatible with systems designed for the slower variants. I2C protocol and memory organization remain unchanged.

Q: What does the temperature suffix (-I vs. -E) indicate? A: The -I suffix indicates industrial temperature range (-40°C to 85°C). The -E suffix indicates extended temperature range (-40°C to 125°C). Select -E variants for applications requiring operation at elevated temperatures beyond 85°C.

Q: Can I substitute a part with extended temperature range (-E) in place of standard (-I)? A: Yes. Extended temperature range parts are suitable for all applications requiring standard temperature operation. However, verify that your system design does not depend on the narrower temperature specification. Extended temperature parts typically have different MSL ratings and may have different availability.

Q: What is the significance of MSL (Moisture Sensitivity Level) rating? A: MSL rating indicates moisture sensitivity for surface mount components. MSL 1 (Unlimited) means no moisture precautions are required. MSL 3 (168 Hours) requires storage in dry conditions and limits floor life after opening. For high-volume production, verify MSL compatibility with your moisture control procedures.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting lead-free and hazardous substance restrictions for EU and global markets.

Q: What packaging formats are available, and how do they affect assembly? A: Cut Tape & Digi-Reel (CT) is suitable for automated pick-and-place equipment with tape reel feeders. Tube packaging is suitable for manual assembly or equipment with tube feeders. Tape & Reel (TR) is standard for high-volume automated assembly. Verify your assembly equipment compatibility before selecting a packaging format.

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