24LC024-E/MC EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC024-E/MC is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, designed for non-volatile data storage applications requiring I2C serial communication. This device operates at 400 kHz clock frequency with a 256 x 8 memory organization and is housed in an 8-DFN (2x3) surface mount package. The part is currently in active production status with 3800 units in stock.

Substitute parts are necessary when the original 24LC024-E/MC becomes unavailable, when alternative packaging formats are required for manufacturing compatibility, or when enhanced performance specifications (such as higher clock frequency or extended temperature range) are needed for specific application requirements.

Key Parameters

Parameter	24LC024-E/MC
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Write Cycle Time	5ms
Access Time	900 ns
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-VFDFN Exposed Pad
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC024-E/MC is determined by the following critical parameters:

Core Functional Requirements (Non-Negotiable):

Memory Size: 2Kbit
Memory Organization: 256 x 8
Memory Interface: I2C
Memory Type: Non-Volatile EEPROM

Performance Parameters (Must Meet or Exceed):

Clock Frequency: 400 kHz minimum
Write Cycle Time: 5ms maximum
Access Time: 900 ns maximum

Electrical Compatibility:

Voltage Supply Range: Must encompass or overlap with 2.5V ~ 5.5V
Operating Temperature: Must support -40°C minimum and 125°C maximum, or be suitable for the intended application temperature range

Compliance & Certification:

RoHS3 Compliance required
REACH Unaffected status required

All substitute parts listed below meet these core functional requirements and maintain electrical compatibility within the specified operating parameters.

Parameter Comparison

Parameter	24LC024-E/MC (Microchip)	BR24L02NUX-WTR (Rohm)	CAT34C02VP2IGT4A (onsemi)	M24C02-DRMF3TG/K (STMicro)	M24C02-FMC6TG (STMicro)	M24C02-RMC6TG (STMicro)
Memory Size	2Kbit	2Kbit	2Kbit	2Kbit	2Kbit	2Kbit
Memory Organization	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8
Memory Interface	I2C	I2C	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	1 MHz	400 kHz	400 kHz
Write Cycle Time	5ms	5ms	5ms	4ms	5ms	5ms
Access Time	900 ns	Not specified	900 ns	450 ns	900 ns	900 ns
Voltage Supply Range	2.5V ~ 5.5V	1.8V ~ 5.5V	1.7V ~ 5.5V	1.8V ~ 5.5V	1.7V ~ 5.5V	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	8-VFDFN Exposed Pad	8-UFDFN Exposed Pad	8-WFDFN Exposed Pad	8-WFDFN Exposed Pad	8-UFDFN Exposed Pad	8-UFDFN Exposed Pad
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tube	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®	Cut Tape (CT) & Digi-Reel®

Engineering Selection Recommendations

BR24L02NUX-WTR (Rohm Semiconductor): This substitute maintains full functional equivalence with 400 kHz I2C operation and 5ms write cycle time. The extended voltage supply range (1.8V ~ 5.5V) provides additional flexibility for low-power applications. Operating temperature range is limited to -40°C ~ 85°C, making this option suitable for commercial and industrial applications that do not require the full 125°C upper temperature limit. Packaging is provided in Tape & Reel format with 184,920 units in stock, offering high availability.

CAT34C02VP2IGT4A (onsemi): This part provides direct functional compatibility with 400 kHz clock frequency and 900 ns access time matching the original specification. The voltage supply range extends to 1.7V, supporting ultra-low-power applications. Operating temperature is constrained to -40°C ~ 85°C. This option is available in Cut Tape & Digi-Reel packaging with 34,490 units in stock.

M24C02-DRMF3TG/K (STMicroelectronics): This substitute offers enhanced performance with 1 MHz clock frequency and 450 ns access time, exceeding the original 24LC024-E/MC specifications. Write cycle time is reduced to 4ms. The device maintains the full -40°C ~ 125°C operating temperature range of the original part and includes AEC-Q100 automotive qualification. This option is suitable for applications requiring higher speed operation or automotive-grade reliability. Inventory is 2,956 units.

M24C02-FMC6TG (STMicroelectronics): This part maintains 400 kHz I2C operation with 900 ns access time and 5ms write cycle time, providing direct functional equivalence. Voltage supply range is 1.7V ~ 5.5V. Operating temperature is -40°C ~ 85°C. Available in Cut Tape & Digi-Reel packaging with 19,108 units in stock.

M24C02-RMC6TG (STMicroelectronics): This substitute maintains full functional compatibility with 400 kHz clock frequency, 900 ns access time, and 5ms write cycle time. Voltage supply range is 1.8V ~ 5.5V. Operating temperature range is -40°C ~ 85°C. Available in Cut Tape & Digi-Reel packaging with 2,960 units in stock.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for the 24LC024-E/MC?

A: All listed substitute parts are functionally equivalent in terms of memory capacity (2Kbit), organization (256 x 8), and I2C interface protocol. However, package type differences (VFDFN, UFDFN, WFDFN) may require PCB layout modifications. Verify package footprint compatibility with your circuit board design before substitution.

Q: What is the difference between the M24C02 variants?

A: The M24C02 family from STMicroelectronics includes multiple package and performance variants. M24C02-DRMF3TG/K operates at 1 MHz with 450 ns access time and includes automotive qualification. M24C02-FMC6TG and M24C02-RMC6TG both operate at 400 kHz with 900 ns access time but differ in voltage supply range (1.7V vs. 1.8V minimum) and package designation.

Q: Which substitute part should I select if my application requires operation at 125°C?

A: Only the M24C02-DRMF3TG/K maintains the full -40°C ~ 125°C operating temperature range of the original 24LC024-E/MC. All other substitutes are limited to -40°C ~ 85°C maximum operating temperature.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the original 24LC024-E/MC.

Q: What packaging formats are available for these substitutes?

A: The 24LC024-E/MC is supplied in Tube packaging. Substitute parts are available in Tape & Reel (BR24L02NUX-WTR) or Cut Tape & Digi-Reel formats (onsemi and STMicroelectronics parts). Verify packaging compatibility with your assembly process requirements.

Q: Can I use the M24C02-DRMF3TG/K as a drop-in replacement if I only need 400 kHz operation?

A: Yes. The M24C02-DRMF3TG/K operates at 1 MHz but is backward compatible with 400 kHz I2C bus speeds. The enhanced performance specifications (1 MHz capability, 450 ns access time, 4ms write cycle) do not prevent operation at lower clock frequencies. Verify package footprint compatibility with your PCB design.

Q: What is the minimum voltage supply requirement for low-power applications?

A: The BR24L02NUX-WTR, CAT34C02VP2IGT4A, M24C02-FMC6TG, and M24C02-RMC6TG all support operation down to 1.7V ~ 1.8V, compared to the original 24LC024-E/MC minimum of 2.5V. Select these options for ultra-low-power battery-operated applications.

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