Equivalent & Substitute Parts for 24LC014H-E/SN

Part Overview

The 24LC014H-E/SN is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface communication at 1 MHz clock frequency. This non-volatile memory device is housed in an 8-SOIC surface mount package and operates across a supply voltage range of 2.5V to 5.5V with an extended temperature range of -40°C to 125°C. The product maintains Active status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications permit operation at reduced clock frequencies or narrower voltage/temperature ranges.

Key Parameters

Parameter	24LC014H-E/SN
Memory Size	1Kbit
Memory Organization	128 x 8
Memory Interface	I2C
Clock Frequency	1 MHz
Access Time	400 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C (TA)
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC014H-E/SN is determined by the following critical parameters:

Core Compatibility Requirements:

Memory Size: 1Kbit (128 x 8 organization)
Memory Interface: I2C protocol
Package Type: 8-SOIC or 8-SOP (mechanically compatible pin configurations)
Mounting Type: Surface Mount

Performance Tolerance Parameters:

Clock Frequency: 1 MHz or lower (backward compatible)
Access Time: 400 ns or faster
Write Cycle Time: 5ms (standard across all candidates)
Voltage Supply: Must encompass or be contained within 2.5V ~ 5.5V range
Operating Temperature: Must support -40°C minimum and 125°C maximum, or narrower ranges acceptable for specific applications

Compliance Requirements:

RoHS3 Compliant
Non-Volatile EEPROM technology

Substitute parts are grouped into two categories: direct replacements maintaining 1 MHz operation and compatible alternatives operating at 400 kHz with equivalent or superior electrical characteristics.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temperature	Package	Packaging Format
24LC014H-E/SN	Microchip Technology	1Kbit	1 MHz	400 ns	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Tube
24LC01B-E/SN	Microchip Technology	1Kbit	400 kHz	4.6 µs	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Tube
AT24C01D-SSHM-B	Microchip Technology	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Bulk
AT24C01D-SSHM-T	Microchip Technology	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel
BR24A01AF-WLBH2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	2.5V ~ 5.5V	-40°C ~ 105°C	8-SOP	Tape & Reel
BR24A01AF-WME2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	2.5V ~ 5.5V	-40°C ~ 105°C	8-SOP	Tape & Reel
BR24A01AFJ-WME2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	2.5V ~ 5.5V	-40°C ~ 105°C	8-SOP-J	Tape & Reel
BR24G01F-3GTE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP	Tape & Reel
BR24L01AF-WE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOP	Cut Tape & Digi-Reel
BR24T01F-WE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-SOP	Tape & Reel
M24C01-RMN6TP	STMicroelectronics	1Kbit	400 kHz	900 ns	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Substitutes (1 MHz Operation, 8-SOIC Package):

AT24C01D-SSHM-B and AT24C01D-SSHM-T maintain 1 MHz clock frequency and 8-SOIC package compatibility. Both parts are manufactured by Microchip Technology with verified programmability status and ROHS3 compliance. Selection between these depends on packaging format requirements: Bulk packaging for AT24C01D-SSHM-B or Cut Tape & Digi-Reel for AT24C01D-SSHM-T. Note that voltage supply range narrows to 1.7V ~ 3.6V and operating temperature reduces to -40°C ~ 85°C; these constraints must be evaluated against application requirements.

Compatible Alternatives (400 kHz Operation):

24LC01B-E/SN from Microchip Technology operates at 400 kHz with identical 8-SOIC package and maintains the full voltage and temperature range of the primary part. This represents the most direct functional alternative when clock frequency reduction is acceptable.

M24C01-RMN6TP from STMicroelectronics provides 400 kHz operation in 8-SOIC package with verified programmability and Cut Tape & Digi-Reel packaging. Voltage supply extends to 1.8V minimum and temperature range limits to -40°C ~ 85°C.

Rohm Semiconductor Alternatives (400 kHz Operation, 8-SOP Package):

BR24A01AF-WLBH2, BR24A01AF-WME2, BR24A01AFJ-WME2, BR24G01F-3GTE2, BR24L01AF-WE2, and BR24T01F-WE2 all operate at 400 kHz with 8-SOP package variants. BR24A01AF-WME2 carries AEC-Q100 automotive qualification. These parts require PCB layout accommodation for 8-SOP package dimensions (0.173" width versus 0.154" for 8-SOIC).

Selection Criteria Based on Product Status:

All substitute parts maintain Active product status with ROHS3 compliance. Microchip Technology parts AT24C01D-SSHM-B and AT24C01D-SSHM-T carry verified programmability designation. Rohm Semiconductor parts do not carry verified programmability status. STMicroelectronics M24C01-RMN6TP carries verified programmability status.

Frequently Asked Questions (FAQ)

Q: Can 24LC01B-E/SN replace 24LC014H-E/SN in all applications?

A: 24LC01B-E/SN is functionally compatible when clock frequency reduction from 1 MHz to 400 kHz is acceptable. Both parts share identical 1Kbit memory organization, I2C interface, 8-SOIC package, and voltage/temperature ranges. Applications requiring 1 MHz operation must use alternatives maintaining that specification.

Q: What is the difference between 8-SOIC and 8-SOP packages?

A: Both are 8-pin surface mount packages with different physical dimensions. 8-SOIC measures 0.154" width (3.90mm), while 8-SOP measures 0.173" width (4.40mm). PCB footprints are not interchangeable; package selection must match board design specifications.

Q: Are Rohm Semiconductor BR24 series parts direct pin-compatible with Microchip 24LC parts?

A: All substitute parts maintain I2C interface and 1Kbit memory organization with identical pin functionality. However, package type differences (8-SOIC versus 8-SOP) require different PCB footprints. Electrical pin assignments are compatible across all listed alternatives.

Q: Which substitute part supports the widest voltage range?

A: BR24G01F-3GTE2 and BR24T01F-WE2 support 1.6V minimum supply voltage, extending the lower voltage limit compared to the primary part's 2.5V minimum. BR24A01AF-WLBH2, BR24A01AF-WME2, and BR24A01AFJ-WME2 maintain the 2.5V ~ 5.5V range matching the primary part.

Q: What is the significance of AEC-Q100 qualification on BR24A01AF-WME2?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability standards. This designation is relevant only for automotive applications; general industrial and consumer applications do not require this certification.

Q: Can I use AT24C01D-SSHM-T if my application requires -40°C to 125°C operation?

A: No. AT24C01D-SSHM-T operates only to 85°C maximum. The primary part 24LC014H-E/SN supports 125°C operation. For full temperature range compatibility, use 24LC01B-E/SN, which maintains -40°C ~ 125°C specification.

Q: What is the difference between Cut Tape & Digi-Reel and Tape & Reel packaging?

A: Both are reel-based packaging formats for automated assembly. Cut Tape & Digi-Reel allows partial reel usage with Digi-Reel compatibility, while standard Tape & Reel requires full reel quantities. Selection depends on manufacturing volume and inventory management requirements.

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