Equivalent & Substitute Parts for 24LC02BHT-I/SN

Part Overview

The 24LC02BHT-I/SN is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. The device is packaged in 8-SOIC surface mount configuration and operates across a supply voltage range of 2.5V to 5.5V with temperature range of -40°C to 85°C. This part is Active status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional interchangeability in circuit applications.

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	5 ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24LC02BHT-I/SN are grouped based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

Memory Size: 2Kbit (256 x 8 organization)
Memory Interface: I2C protocol
Package Type: 8-SOIC surface mount
Mounting Type: Surface mount

Secondary Matching Criteria:

Clock Frequency: 400 kHz (primary specification)
Access Time: 900 ns (primary specification)
Write Cycle Time: 5 ms (primary specification)
Voltage Supply Range: 2.5V ~ 5.5V minimum compatibility
Operating Temperature: -40°C ~ 85°C minimum compatibility
RoHS Compliance: ROHS3 Compliant

Substitutes are classified into two categories: Direct equivalents (identical specifications) and compatible alternatives (same core functionality with allowable parameter variations within design tolerance).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Write Cycle Time	Voltage Supply	Operating Temp	Package	Packaging Type	Product Status
24LC02BHT-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	Active
24LC02BH-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	Active
24AA024T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	Active
24AA025T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	Active
24AA02T-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	Active
24LC024HT-I/SN	Microchip Technology	2Kbit	1 MHz	400 ns	5 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	Active
24LC02B-I/SNG	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	Active
24LC02BT-E/SN	Microchip Technology	2Kbit	400 kHz	900 ns	5 ms	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Cut Tape & Digi-Reel	Active
24LC22A-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	10 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	Active
24LC22AT-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	10 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	Active
24LCS22AT-I/SN	Microchip Technology	2Kbit	400 kHz	900 ns	10 ms	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	Active

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications): The 24LC02BH-I/SN and 24LC02B-I/SNG are direct functional equivalents to the 24LC02BHT-I/SN, differing only in packaging format (Tube vs. Tape & Reel). Both maintain identical electrical specifications and are Active status products suitable for direct substitution.

Compatible Alternatives with Extended Voltage Range: The 24AA024T-I/SN, 24AA025T-I/SN, and 24AA02T-I/SN offer extended lower voltage supply capability (1.7V minimum vs. 2.5V), making them suitable for applications requiring lower supply voltage operation while maintaining all other core specifications. These parts are Active status and ROHS3 compliant.

Higher Clock Frequency Option: The 24LC024HT-I/SN operates at 1 MHz clock frequency with 400 ns access time, providing faster I2C communication capability. This part maintains 2Kbit capacity and 8-SOIC packaging, suitable for applications requiring higher data transfer rates. Product status is Active.

Extended Temperature Range Option: The 24LC02BT-E/SN extends the operating temperature range to -40°C to 125°C, accommodating industrial and high-temperature applications while maintaining all other specifications of the primary part. Product status is Active.

Longer Write Cycle Time Variants: The 24LC22A-I/SN, 24LC22AT-I/SN, and 24LCS22AT-I/SN feature 10 ms write cycle time compared to 5 ms in the primary part. These are suitable for applications where write cycle timing is not performance-critical. All are Active status products.

All substitute parts listed are ROHS3 compliant and maintain the same 8-SOIC package footprint, ensuring PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can I substitute 24LC02BH-I/SN for 24LC02BHT-I/SN? A: Yes. Both parts are functionally identical with matching memory capacity, interface, clock frequency, access time, and electrical specifications. The difference is packaging format: 24LC02BH-I/SN is supplied in Tube packaging while 24LC02BHT-I/SN is supplied in Tape & Reel. Component-level performance is equivalent.

Q: What is the difference between 24AA02T-I/SN and 24LC02BHT-I/SN? A: The 24AA02T-I/SN has a lower minimum supply voltage (1.7V vs. 2.5V), making it suitable for battery-powered or low-voltage applications. All other specifications including memory size, interface, clock frequency, access time, and package are identical. Both are Active status products.

Q: Can I use 24LC024HT-I/SN as a substitute? A: Yes, with consideration for application requirements. The 24LC024HT-I/SN operates at 1 MHz clock frequency with 400 ns access time, providing faster I2C communication compared to the 400 kHz / 900 ns specification of 24LC02BHT-I/SN. Memory capacity and package remain identical. This substitution is suitable for applications that can benefit from higher speed operation.

Q: What does the write cycle time difference mean? A: Write cycle time specifies the duration required to complete a single write operation. The 24LC02BHT-I/SN has 5 ms write cycle time. Alternatives like 24LC22A-I/SN have 10 ms write cycle time. For applications with non-critical write timing, the longer cycle time variant is acceptable. For time-sensitive write operations, the 5 ms specification should be maintained.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant, matching the compliance status of the primary part 24LC02BHT-I/SN.

Q: Do all substitutes use the same 8-SOIC package? A: Yes. All substitute parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package, ensuring identical PCB footprint and mounting compatibility.

Q: What is the difference between Tape & Reel, Tube, and Cut Tape packaging? A: These are supply format variations only and do not affect component electrical performance. Tape & Reel is used for automated assembly lines. Tube packaging is used for manual assembly or lower-volume applications. Cut Tape & Digi-Reel is a hybrid format. Component functionality remains identical regardless of packaging format.

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