24LC014T-I/MS EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC014T-I/MS is a 1Kbit I2C EEPROM memory IC manufactured by Microchip Technology, supplied in Tape & Reel packaging. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time, supporting a supply voltage range of 2.5V to 5.5V and operating temperatures from -40°C to 85°C. The device is ROHS3 compliant and actively produced. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, electrical specifications, and package compatibility to ensure functional interchangeability in circuit applications.

Key Parameters

Parameter	Value
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-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Requirements:

Memory capacity: 1Kbit (128 x 8 organization)
Interface protocol: I2C
Write cycle time: 5ms
Memory type: Non-volatile EEPROM
RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

Clock frequency: 400 kHz or higher (backward compatible)
Access time: 900 ns or faster (backward compatible)
Supply voltage range: Must encompass or overlap with 2.5V ~ 5.5V
Operating temperature: -40°C ~ 85°C
Package type: 8-MSOP, 8-TSSOP, or 8-LSSOP (surface mount variants)

Substitutes are grouped by package type and electrical performance tier. Parts with higher clock frequencies (1 MHz) or lower supply voltage minimums (1.7V, 1.8V, 1.6V) remain functionally compatible in applications designed for the 24LC014T-I/MS baseline specifications.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Supply Voltage	Package	Product Status
24LC014T-I/MS	Microchip Technology	1Kbit	400 kHz	900 ns	2.5V ~ 5.5V	8-MSOP	Active
24LC014-I/MS	Microchip Technology	1Kbit	400 kHz	900 ns	2.5V ~ 5.5V	8-MSOP	Active
24LC01BT-I/MS	Microchip Technology	1Kbit	400 kHz	4.6 µs	2.5V ~ 5.5V	8-MSOP	Active
AT24C01D-XHM-B	Microchip Technology	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	8-TSSOP	Active
AT24C01D-XHM-T	Microchip Technology	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	8-TSSOP	Active
BR24G01FVJ-3GTE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.6V ~ 5.5V	8-TSSOP	Not For New Designs
BR24G01FVM-3AGTTR	Rohm Semiconductor	1Kbit	1 MHz	Not specified	1.6V ~ 5.5V	8-MSOP	Active
BR24G01FVT-3GE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.6V ~ 5.5V	8-TSSOP	Active
BR24L01AFV-WE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.8V ~ 5.5V	8-LSSOP	Not For New Designs
BR24L01AFVM-WTR	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.8V ~ 5.5V	8-MSOP	Active
BR24L01AFVT-WE2	Rohm Semiconductor	1Kbit	400 kHz	Not specified	1.8V ~ 5.5V	8-TSSOP	Active

Engineering Selection Recommendations

Direct Substitutes (Microchip Technology, 8-MSOP Package):

24LC014-I/MS and 24LC014T-I/MS are functionally identical with matching electrical specifications. The primary difference is packaging format (Tube vs. Tape & Reel). Both are ROHS3 compliant and actively produced. Selection between these depends on procurement and assembly requirements.

24LC01BT-I/MS is compatible for applications where slower access time (4.6 µs vs. 900 ns) is acceptable. This part maintains identical supply voltage range and clock frequency, ensuring drop-in compatibility in most circuit designs.

Microchip AT24C01D Series (8-TSSOP Package):

AT24C01D-XHM-T and AT24C01D-XHM-B offer higher clock frequency (1 MHz) but operate at reduced supply voltage range (1.7V ~ 3.6V). These parts are suitable only for applications designed for lower voltage operation. Package change from 8-MSOP to 8-TSSOP requires PCB layout modification.

Rohm Semiconductor BR24 Series:

BR24G01FVM-3AGTTR and BR24L01AFVM-WTR maintain 8-MSOP package compatibility with the main part. Both support extended supply voltage range (1.6V ~ 1.8V minimum to 5.5V maximum), providing broader operational flexibility. BR24G01FVM-3AGTTR operates at 1 MHz clock frequency; BR24L01AFVM-WTR operates at 400 kHz matching the main part specification.

BR24G01FVT-3GE2 and BR24L01AFVT-WE2 use 8-TSSOP package, requiring PCB redesign. BR24G01FVJ-3GTE2 and BR24L01AFV-WE2 are designated "Not For New Designs" and should be avoided in new product development.

Compliance and Production Status:

All recommended substitutes maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited). Parts marked "Active" are suitable for new designs. Parts marked "Not For New Designs" should be used only for legacy system maintenance or repair applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute 24LC014T-I/MS with 24LC014-I/MS?

A: Yes. Both parts are electrically identical with matching memory capacity, I2C interface, clock frequency, access time, and supply voltage specifications. The difference is packaging format: 24LC014T-I/MS is supplied in Tape & Reel; 24LC014-I/MS is supplied in Tube. Selection depends on assembly line requirements.

Q: What is the difference between 8-MSOP and 8-TSSOP packages?

A: 8-MSOP (0.118", 3.00mm width) and 8-TSSOP (0.173", 4.40mm width) are different surface mount package outlines. Substitution between these packages requires PCB layout modification and cannot be performed as a direct drop-in replacement.

Q: Can I use AT24C01D-XHM-T in place of 24LC014T-I/MS?

A: Electrical substitution is possible if your circuit operates within the AT24C01D supply voltage range of 1.7V ~ 3.6V. However, package change from 8-MSOP to 8-TSSOP requires PCB redesign. The higher clock frequency (1 MHz vs. 400 kHz) is backward compatible.

Q: Are Rohm BR24 series parts compatible with Microchip 24LC014 parts?

A: Yes, for applications meeting the electrical specifications. BR24G01 and BR24L01 series maintain 1Kbit capacity, I2C interface, and 5ms write cycle time. Supply voltage ranges vary by part number. Package compatibility depends on the specific BR24 variant selected.

Q: What does "Not For New Designs" mean?

A: Parts marked "Not For New Designs" are legacy products that remain available for existing system support and repairs but should not be selected for new product development. Use active production parts for new designs to ensure long-term supply availability and support.

Q: Does higher clock frequency (1 MHz vs. 400 kHz) affect compatibility?

A: No. Higher clock frequency is backward compatible. A 1 MHz I2C EEPROM operates correctly in circuits designed for 400 kHz operation. The I2C bus will communicate at the lower speed determined by the master controller.

Q: Can I use BR24L01AFVM-WTR with a 5V supply?

A: Yes. BR24L01AFVM-WTR supports supply voltage from 1.8V to 5.5V, which encompasses the 5V operating point. This part provides broader voltage compatibility compared to the main part's 2.5V minimum specification.

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