Equivalent & Substitute Parts for 24LC014T-I/MC

Part Overview

The 24LC014T-I/MC is a 1Kbit 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-DFN (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. This part maintains active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Equivalent and substitute parts are identified based on matching core electrical specifications and mechanical compatibility within the I2C EEPROM category.

Key Parameters

Parameter	24LC014T-I/MC
Memory Size	1Kbit
Memory Organization	128 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-DFN (2x3)
Mounting Type	Surface Mount
Product Status	Active
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24LC014T-I/MC are identified based on the following core electrical and mechanical parameters:

Primary Substitution Criteria:

Memory Size: 1Kbit (128 x 8 organization)
Memory Interface: I2C protocol
Write Cycle Time: 5ms
Package Type: 8-pin DFN or compatible surface mount configuration
Voltage Supply Range: Compatibility with 2.5V ~ 5.5V or overlapping range
Operating Temperature: -40°C ~ 85°C or compatible range
Product Status: Active

Secondary Compatibility Factors:

Clock Frequency: 400 kHz or higher
Access Time: 900 ns or faster
RoHS Compliance: ROHS3 Compliant
Moisture Sensitivity: MSL 1 or MSL 3 (168 Hours)

Substitutes are grouped into two categories: direct equivalents with identical electrical specifications and functional alternatives with enhanced specifications that maintain backward compatibility.

Parameter Comparison

Parameter	24LC014T-I/MC	24LC01BT-I/MC	24LC02BT-I/MC	AT24C01D-MAHM-T	BR24G01NUX-3TTR
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Rohm Semiconductor
Memory Size	1Kbit	1Kbit	2Kbit	1Kbit	1Kbit
Memory Organization	128 x 8	128 x 8	256 x 8	128 x 8	128 x 8
Memory Interface	I2C	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	1 MHz	400 kHz
Access Time	900 ns	4.6 µs	900 ns	4.5 µs	Not Specified
Write Cycle Time	5ms	5ms	5ms	5ms	5ms
Voltage Supply Range	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	1.7V ~ 3.6V	1.6V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TC)	-40°C ~ 85°C (TA)
Package Type	8-VFDFN Exposed Pad	8-VFDFN Exposed Pad	8-VFDFN Exposed Pad	8-UFDFN Exposed Pad	8-UFDFN Exposed Pad
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Product Status	Active	Active	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)	MSL 3 (168 Hours)	MSL 1 (Unlimited)	MSL 3 (168 Hours)	MSL 1 (Unlimited)

Engineering Selection Recommendations

24LC01BT-I/MC (Microchip Technology) Direct equivalent with identical electrical specifications and package configuration. Verified programmable status with Microchip Technology manufacturing. Suitable for direct replacement in applications requiring 1Kbit I2C EEPROM at 400 kHz. MSL 3 rating requires controlled storage conditions (168 hours at 60% relative humidity, 30°C).

24LC02BT-I/MC (Microchip Technology) Functional alternative with doubled memory capacity (2Kbit, 256 x 8 organization) while maintaining identical clock frequency, write cycle time, and voltage supply range. Verified programmable status. MSL 1 rating provides superior moisture tolerance. Suitable for applications requiring expanded memory capacity with identical I2C interface timing.

AT24C01D-MAHM-T (Microchip Technology) Enhanced specification substitute with 1 MHz clock frequency (2.5x faster than primary part) and 4.5 µs access time. Operates at reduced voltage range (1.7V ~ 3.6V), limiting compatibility to lower voltage systems. MSL 3 rating. Suitable for high-speed I2C applications requiring faster data access within compatible voltage domains.

BR24G01NUX-3TTR (Rohm Semiconductor) Cross-manufacturer equivalent from Rohm Semiconductor with 1Kbit capacity and 400 kHz clock frequency. Extended voltage supply range (1.6V ~ 5.5V) provides broader system compatibility. MSL 1 rating ensures unlimited moisture tolerance. VSON008X2030 package maintains 8-pin surface mount configuration with mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can 24LC01BT-I/MC directly replace 24LC014T-I/MC in production? A: Yes. Both parts share identical memory size (1Kbit), organization (128 x 8), clock frequency (400 kHz), write cycle time (5ms), voltage supply range (2.5V ~ 5.5V), and operating temperature range (-40°C ~ 85°C). The primary difference is MSL rating: 24LC01BT-I/MC requires MSL 3 storage conditions (168 hours at 60% RH, 30°C) versus unlimited storage for 24LC014T-I/MC.

Q: Is 24LC02BT-I/MC compatible with designs using 24LC014T-I/MC? A: Electrical compatibility is maintained for I2C protocol, clock frequency, write cycle time, and voltage supply range. The doubled memory capacity (2Kbit versus 1Kbit) requires address space accommodation in firmware but does not prevent physical substitution. Verify application firmware supports 256 x 8 memory organization.

Q: What are the voltage compatibility constraints for AT24C01D-MAHM-T? A: AT24C01D-MAHM-T operates at 1.7V ~ 3.6V supply voltage, which does not overlap with the upper range of 24LC014T-I/MC (2.5V ~ 5.5V). This part is suitable only for systems operating within the 1.7V ~ 3.6V window. The 1 MHz clock frequency provides enhanced performance for compatible voltage domains.

Q: Does BR24G01NUX-3TTR from Rohm Semiconductor maintain full compatibility? A: Yes. BR24G01NUX-3TTR provides 1Kbit capacity, I2C interface, 400 kHz clock frequency, 5ms write cycle time, and -40°C ~ 85°C operating temperature identical to 24LC014T-I/MC. Extended voltage range (1.6V ~ 5.5V) and MSL 1 rating provide enhanced system flexibility. Package configuration (8-UFDFN) maintains surface mount compatibility.

Q: What is the impact of MSL rating differences on component selection? A: MSL 1 (Unlimited) allows indefinite storage at any humidity level. MSL 3 (168 Hours) restricts storage to 168 hours at 60% relative humidity and 30°C before requiring baking. For high-volume production with extended supply chain timelines, MSL 1 parts (24LC014T-I/MC, 24LC02BT-I/MC, BR24G01NUX-3TTR) reduce moisture-related defect risk.

Q: Can higher clock frequency parts (AT24C01D-MAHM-T at 1 MHz) be used in 400 kHz I2C systems? A: I2C protocol allows devices to operate at lower clock frequencies than their maximum specification. AT24C01D-MAHM-T can operate in 400 kHz systems, but voltage range incompatibility (1.7V ~ 3.6V) may prevent use in systems designed for 2.5V ~ 5.5V operation.

Q: What packaging considerations apply to these substitutes? A: All substitutes use 8-pin surface mount packages (8-VFDFN or 8-UFDFN) with exposed pad configuration. Physical footprint compatibility requires verification of specific DFN variant dimensions. Tape & Reel (TR) and Cut Tape (CT) packaging formats are suitable for automated assembly processes.

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