Equivalent & Substitute Parts for 34LC02-E/SN

Part Overview

The 34LC02-E/SN is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 1 MHz with 400 ns access time. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter ranges for EEPROM memory devices in the 2Kbit I2C category.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	1 MHz
Access Time	400 ns
Write Cycle Time	5ms
Voltage Supply Range	2.2V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-SOIC
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 34LC02-E/SN is determined by the following criteria:

Memory capacity must be 2Kbit with 256 x 8 organization
I2C interface protocol compliance is mandatory
Clock frequency of 1 MHz or lower is acceptable
Access time of 400 ns or faster is acceptable
Write cycle time of 5ms or less is acceptable
Voltage supply range must overlap with or exceed 2.2V ~ 5.5V
Operating temperature range must support -40°C minimum and 125°C maximum, or a subset thereof
Package must be 8-SOIC or equivalent mechanical footprint
RoHS3 compliance is required

The three substitute parts listed meet these criteria with variations in clock frequency, access time, and operating temperature ranges.

Parameter Comparison

Parameter	34LC02-E/SN (Microchip)	BR24G02F-3GTE2 (Rohm)	BR24L02FJ-WE2 (Rohm)	M24C02-DRMN3TP/K (STMicroelectronics)
Manufacturer	Microchip Technology	Rohm Semiconductor	Rohm Semiconductor	STMicroelectronics
Memory Size	2Kbit	2Kbit	2Kbit	2Kbit
Memory Organization	256 x 8	256 x 8	256 x 8	256 x 8
Memory Interface	I2C	I2C	I2C	I2C
Clock Frequency	1 MHz	400 kHz	400 kHz	1 MHz
Access Time	400 ns	Not specified	Not specified	450 ns
Write Cycle Time	5ms	5ms	5ms	4ms
Voltage Supply Range	2.2V ~ 5.5V	1.6V ~ 5.5V	1.8V ~ 5.5V	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 125°C
Package Type	8-SOIC	8-SOP	8-SOP-J	8-SOIC
RoHS Status	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

M24C02-DRMN3TP/K (STMicroelectronics) provides the closest electrical match to the 34LC02-E/SN, maintaining 1 MHz clock frequency and supporting the full -40°C ~ 125°C operating temperature range. This part includes AEC-Q100 automotive qualification. Package footprint is identical 8-SOIC. This substitute is suitable for direct replacement in applications requiring maximum temperature range coverage.

BR24L02FJ-WE2 (Rohm Semiconductor) operates at reduced clock frequency (400 kHz) with operating temperature limited to -40°C ~ 85°C. The 8-SOP-J package maintains mechanical compatibility with the original 8-SOIC footprint. This part is verified for DiGi-Electronics programmability. Selection of this substitute is appropriate for applications where reduced clock frequency is acceptable and operating temperature does not exceed 85°C.

BR24G02F-3GTE2 (Rohm Semiconductor) also operates at 400 kHz with -40°C ~ 85°C temperature range. The 8-SOP package differs slightly in width (4.40mm versus 3.90mm). This substitute is suitable where clock frequency reduction is tolerable and temperature range limitation is acceptable.

All three substitutes maintain RoHS3 compliance, MSL Level 1 rating, and I2C protocol compatibility with identical memory capacity and organization.

Frequently Asked Questions (FAQ)

Q: Can BR24G02F-3GTE2 or BR24L02FJ-WE2 be used as direct replacements for 34LC02-E/SN?

A: Both Rohm parts are functionally compatible for I2C EEPROM 2Kbit applications. However, clock frequency is reduced to 400 kHz, and maximum operating temperature is limited to 85°C. Verify that your application does not require 1 MHz operation or temperatures above 85°C before substitution.

Q: What is the difference between BR24G02F-3GTE2 and BR24L02FJ-WE2?

A: Both are 2Kbit I2C EEPROM devices from Rohm with identical electrical specifications. The primary differences are package width (4.40mm versus 3.90mm) and DiGi-Electronics programmability verification status (BR24L02FJ-WE2 is verified). Package selection depends on PCB layout constraints.

Q: Is M24C02-DRMN3TP/K suitable for automotive applications?

A: Yes. M24C02-DRMN3TP/K carries AEC-Q100 automotive qualification and maintains full temperature range operation (-40°C ~ 125°C). This part is appropriate for automotive-grade designs.

Q: Do all substitute parts support the same voltage range as 34LC02-E/SN?

A: No. The 34LC02-E/SN operates from 2.2V minimum, while all three substitutes operate from 1.6V or 1.8V minimum. All parts support 5.5V maximum. Verify your application's minimum supply voltage requirement before selection.

Q: Can I use these substitutes interchangeably on the same PCB?

A: Package footprint differences exist. BR24G02F-3GTE2 (8-SOP, 4.40mm width) and BR24L02FJ-WE2 (8-SOP-J, 3.90mm width) may require PCB layout verification. M24C02-DRMN3TP/K uses identical 8-SOIC footprint as the original part and requires no layout modification.

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