Equivalent & Substitute Parts for 24LC02BT/SN

Part Overview

The 24LC02BT/SN is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. Supplied in 8-SOIC surface mount packaging with Tape & Reel (TR) delivery, this component is classified as Active product status and is ROHS3 compliant. Alternative equivalent parts are necessary when addressing supply constraints, packaging format requirements, or extended operating temperature specifications for specific application demands.

Key Parameters

Parameter	Value
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

Substitution eligibility for the 24LC02BT/SN is determined by the following critical parameters:

Core Electrical Parameters: Memory size (2Kbit), memory organization (256 x 8), interface type (I2C), and clock frequency (400 kHz) must remain constant. Access time and write cycle time must meet or exceed the original specifications.

Voltage and Temperature: Supply voltage range must encompass the original 2.5V ~ 5.5V specification. Operating temperature range may be extended (wider range acceptable) but must include the minimum 0°C ~ 70°C window.

Mechanical Compatibility: Package type must be 8-SOIC with identical physical dimensions (0.154", 3.90mm Width). Surface mount mounting type is required.

Compliance Requirements: RoHS3 compliance and MSL rating must be maintained or improved.

Packaging Format: Acceptable delivery formats include Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Tube configurations.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temperature	Package	Packaging Format	RoHS Status	MSL Rating
24LC02BT/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tape & Reel (TR)	ROHS3	1
24LC02B/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tube	ROHS3	1
24AA024T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel (TR)	ROHS3	3
24AA025T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel (TR)	ROHS3	1
24AA02T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	ROHS3	1
24AA02T/SN	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tape & Reel (TR)	ROHS3	1
24LC024HT-I/SN	Microchip Technology	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel (TR)	ROHS3	1
24LC024T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	ROHS3	3
24LC02B-I/SNG	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	ROHS3	1
24LC02BT-E/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	ROHS3	3
24LC02BT-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape (CT) & Digi-Reel®	ROHS3	1

Engineering Selection Recommendations

Direct Packaging Equivalent: 24LC02B/SN provides identical electrical specifications with Tube packaging format. Selection is appropriate when Tube delivery is preferred over Tape & Reel.

Extended Temperature Range Substitutes: 24LC02B-I/SNG, 24LC02BT-I/SN, and 24LC024T-I/SN extend operating temperature to -40°C ~ 85°C while maintaining core electrical parameters. These are suitable for applications requiring wider temperature operation within the 2.5V ~ 5.5V supply range.

Enhanced Temperature Performance: 24LC02BT-E/SN extends operating temperature to -40°C ~ 125°C, supporting high-temperature applications. This part maintains identical electrical specifications and 8-SOIC packaging.

Lower Voltage Operation: 24AA024T-I/SN, 24AA025T-I/SN, and 24AA02T-I/SN support extended supply voltage range (1.7V ~ 5.5V) and wider operating temperatures (-40°C ~ 85°C). These are applicable for low-voltage system designs.

Higher Clock Frequency Option: 24LC024HT-I/SN operates at 1 MHz clock frequency with 400 ns access time, providing faster I2C communication while maintaining 2Kbit capacity and 2.5V ~ 5.5V supply range.

Compliance Status: All substitute parts maintain ROHS3 compliance and Active product status. MSL ratings vary between 1 and 3; selection should account for moisture sensitivity requirements during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can 24AA024T-I/SN replace 24LC02BT/SN in all applications?

A: 24AA024T-I/SN is electrically compatible with identical memory capacity, organization, interface, and clock frequency. However, it operates at 1.7V ~ 5.5V supply voltage (lower minimum) and -40°C ~ 85°C temperature range (extended). Substitution is valid when the application operates within these parameters. MSL rating is 3 (168 Hours) versus the original MSL 1.

Q: What is the difference between 24LC024HT-I/SN and 24LC02BT/SN?

A: 24LC024HT-I/SN operates at 1 MHz clock frequency with 400 ns access time, compared to 24LC02BT/SN at 400 kHz and 900 ns. Both maintain 2Kbit capacity and 8-SOIC packaging. The higher frequency variant is suitable for applications requiring faster I2C communication.

Q: Are packaging format differences significant for substitution?

A: Packaging format (Tape & Reel, Cut Tape & Digi-Reel®, or Tube) affects delivery and handling but does not impact electrical or mechanical compatibility. Selection depends on assembly process requirements and inventory management preferences.

Q: Can I use 24LC02BT-E/SN in place of 24LC02BT/SN?

A: Yes. 24LC02BT-E/SN is electrically identical with extended operating temperature range (-40°C ~ 125°C versus 0°C ~ 70°C). It is suitable for high-temperature applications. MSL rating is 3 (168 Hours) versus the original MSL 1.

Q: Which substitute offers the lowest supply voltage operation?

A: 24AA024T-I/SN, 24AA025T-I/SN, and 24AA02T-I/SN all support 1.7V minimum supply voltage, compared to 2.5V for the original 24LC02BT/SN. These are applicable for low-voltage system designs.

Q: Is 24AA02T/SN compatible with 24LC02BT/SN?

A: 24AA02T/SN is electrically compatible with identical memory specifications and 8-SOIC packaging. It operates at 1.7V ~ 5.5V supply voltage and 0°C ~ 70°C temperature range. Substitution is valid when the application operates within these parameters.

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