Equivalent & Substitute Parts for 24LC02BHT-I/MNY

Part Overview

The 24LC02BHT-I/MNY is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. This non-volatile memory device is packaged in 8-TDFN (2x3) 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. The part is ROHS3 compliant and currently in active production status. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure direct functional replacement in circuit applications.

Key Parameters

Parameter	24LC02BHT-I/MNY
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 Type	8-TDFN (2x3)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24LC02BHT-I/MNY are classified based on electrical and mechanical compatibility within the following criteria:

Primary Substitution Parameters:

Memory capacity: 2Kbit
Memory organization: 256 x 8
Interface protocol: I2C
Package: 8-TDFN (2x3) surface mount
Supply voltage compatibility
Operating temperature range compatibility

Grouping Logic:

Group 1 - Direct Functional Equivalents (400 kHz I2C, 900 ns Access Time): Parts with identical clock frequency and access time specifications, differing only in supply voltage range or packaging format. These provide direct pin-compatible replacement with no circuit modification required.

Group 2 - Enhanced Performance Equivalents (1 MHz I2C, 400 ns Access Time): Parts with higher clock frequency and faster access time. These are backward compatible with 400 kHz I2C bus designs and provide improved performance margins. Extended operating temperature range to 125°C available in this group.

Group 3 - Cross-Manufacturer Equivalents: Parts from alternative manufacturers (onsemi, STMicroelectronics) meeting identical 2Kbit EEPROM specifications with I2C interface and 8-TDFN packaging. Automotive-grade qualification available in STMicroelectronics variant.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	Inventory
24LC02BHT-I/MNY	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	2387 Pcs
24AA024HT-I/MNY	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	9279 Pcs
24AA024T-I/MNY	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	3200 Pcs
24AA02T-I/MNY	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	1757 Pcs
24LC024HT-E/MNY	Microchip Technology	2Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-TDFN (2x3)	4311 Pcs
34AA02T-I/MNY	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	4575 Pcs
24LC024T-I/MNY	Microchip Technology	2Kbit	400 kHz	900 ns	2.5V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	11056 Pcs
CAT34C02VP2IGT4A	onsemi	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TDFN (2x3)	34490 Pcs
M24C02-DRMF3TG/K	STMicroelectronics	2Kbit	1 MHz	450 ns	1.8V ~ 5.5V	-40°C ~ 125°C	8-MLP (2x3)	2956 Pcs

Engineering Selection Recommendations

For Direct Replacement (No Circuit Modification): Select 24LC024T-I/MNY or 24AA024HT-I/MNY when identical electrical performance at 400 kHz I2C operation is required. Both parts maintain the same memory capacity, access time, and package configuration. The 24AA024HT-I/MNY offers extended lower voltage operation (1.7V minimum) compared to the original 24LC02BHT-I/MNY (2.5V minimum), providing additional design flexibility for low-power applications.

For Enhanced Performance Applications: Select 24LC024HT-E/MNY when higher I2C clock frequency (1 MHz) and faster access time (400 ns) are beneficial. This part maintains backward compatibility with 400 kHz I2C bus designs while providing improved performance margins. Extended operating temperature range to 125°C supports industrial and automotive thermal environments.

For Cross-Manufacturer Sourcing: CAT34C02VP2IGT4A from onsemi provides equivalent 2Kbit I2C EEPROM functionality with extended lower voltage operation (1.7V) and highest inventory availability (34490 Pcs). M24C02-DRMF3TG/K from STMicroelectronics offers automotive-grade qualification (AEC-Q100) with 1 MHz I2C operation and extended temperature range, suitable for automotive and harsh environment applications.

Compliance and Production Status: All substitute parts maintain ROHS3 compliance and active production status. All parts are MSL 1 (Unlimited moisture sensitivity level) and carry identical ECCN and HTSUS classifications, ensuring regulatory equivalence for procurement and supply chain purposes.

Frequently Asked Questions (FAQ)

Q: Can 24AA024HT-I/MNY directly replace 24LC02BHT-I/MNY in existing designs?

A: Yes. Both parts share identical memory capacity (2Kbit), I2C interface frequency (400 kHz), access time (900 ns), package type (8-TDFN 2x3), and write cycle time (5 ms). The 24AA024HT-I/MNY extends the lower supply voltage limit to 1.7V, making it compatible with all applications designed for the original part.

Q: What is the difference between 24LC024HT-E/MNY and 24LC02BHT-I/MNY?

A: The 24LC024HT-E/MNY operates at 1 MHz I2C clock frequency with 400 ns access time, compared to 400 kHz and 900 ns for the original part. It also extends the operating temperature range to 125°C. Both maintain 2Kbit capacity and 8-TDFN packaging. The higher frequency part is backward compatible with 400 kHz I2C bus designs.

Q: Is the STMicroelectronics M24C02-DRMF3TG/K pin-compatible with 24LC02BHT-I/MNY?

A: Both parts use 8-pin packages with identical pinout for I2C EEPROM operation. However, the M24C02-DRMF3TG/K uses 8-MLP package designation versus 8-TDFN for the original part. Physical dimensions and land pattern differ slightly. Verify PCB footprint compatibility before substitution. The part is functionally equivalent for I2C memory applications.

Q: Which substitute part has the best supply availability?

A: CAT34C02VP2IGT4A from onsemi has the highest inventory level at 34490 Pcs. This onsemi part provides equivalent 2Kbit I2C EEPROM functionality with 400 kHz operation and extended lower voltage operation (1.7V ~ 5.5V).

Q: Can I use a 1 MHz I2C EEPROM part in a circuit designed for 400 kHz operation?

A: Yes. Parts operating at 1 MHz I2C frequency (24LC024HT-E/MNY and M24C02-DRMF3TG/K) are backward compatible with 400 kHz I2C bus designs. The I2C bus will operate at the lower frequency determined by the master controller, and the faster EEPROM will function correctly at reduced clock speed.

Q: What is the voltage supply difference between 24LC02BHT-I/MNY and 24AA024HT-I/MNY?

A: The 24LC02BHT-I/MNY operates from 2.5V to 5.5V, while 24AA024HT-I/MNY extends the lower limit to 1.7V. Both support the same 5.5V upper limit. The extended lower voltage range of the 24AA024HT-I/MNY enables operation in low-power and battery-powered applications.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the original 24LC02BHT-I/MNY. All parts are also MSL 1 (Unlimited) and carry identical ECCN (EAR99) and HTSUS (8542.32.0051) classifications.

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