Equivalent & Substitute Parts for 24LC014HT-I/MS

Part Overview

The 24LC014HT-I/MS is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 1 MHz with 400 ns access time. Supplied in 8-MSOP packaging with Tape & Reel (TR) configuration, this component operates across 2.5V to 5.5V supply voltage range and -40°C to 85°C temperature range. The part maintains Active product status and ROHS3 compliance.

Substitute parts become necessary when the primary part experiences inventory constraints, packaging format requirements differ, or when alternative manufacturers' components meet the electrical and mechanical specifications required for system integration.

Key Parameters

Parameter	Value
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 ~ 85°C
Package Type	8-MSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution validity for the 24LC014HT-I/MS is determined by the following critical parameters:

Core Electrical Compatibility Requirements:

Memory Size: 1Kbit (128 x 8 organization)
Memory Interface: I2C protocol
Write Cycle Time: 5ms
Operating Temperature Range: -40°C ~ 85°C minimum
Supply Voltage: Must support 2.5V ~ 5.5V range or be compatible within system operating conditions

Package and Mechanical Compatibility:

Surface Mount technology required
8-pin package configuration (8-MSOP, 8-TSSOP, or equivalent pin-compatible variants)

Performance Considerations:

Clock Frequency: 1 MHz operation (400 kHz variants acceptable for reduced-speed applications)
Access Time: 400 ns baseline (slower access times acceptable)

Substitute parts are grouped into three categories based on these parameters: Direct Microchip alternatives with identical electrical specifications, manufacturer-recommended Microchip variants with modified clock frequency, and cross-manufacturer alternatives from Rohm Semiconductor maintaining core functional equivalence.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Package	Product Status	Packaging Format
24LC014HT-I/MS	Microchip	1Kbit	1 MHz	400 ns	2.5V ~ 5.5V	8-MSOP	Active	Tape & Reel
24LC014H-I/MS	Microchip	1Kbit	1 MHz	400 ns	2.5V ~ 5.5V	8-MSOP	Active	Tube
24LC014T-I/MS	Microchip	1Kbit	400 kHz	900 ns	2.5V ~ 5.5V	8-MSOP	Active	Tape & Reel
24LC01BT-I/MS	Microchip	1Kbit	400 kHz	4.6 µs	2.5V ~ 5.5V	8-MSOP	Active	Tape & Reel
AT24C01D-XHM-T	Microchip	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	8-TSSOP	Active	Cut Tape & Digi-Reel
AT24C01D-XHM-B	Microchip	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	8-TSSOP	Active	Tube
BR24G01FVJ-3GTE2	Rohm	1Kbit	400 kHz	Not specified	1.6V ~ 5.5V	8-TSSOP	Not For New Designs	Tape & Reel
BR24G01FVM-3AGTTR	Rohm	1Kbit	1 MHz	Not specified	1.6V ~ 5.5V	8-MSOP	Active	Tape & Reel
BR24G01FVT-3GE2	Rohm	1Kbit	400 kHz	Not specified	1.6V ~ 5.5V	8-TSSOP	Active	Tape & Reel
BR24L01AFV-WE2	Rohm	1Kbit	400 kHz	Not specified	1.8V ~ 5.5V	8-LSSOP	Not For New Designs	Tape & Reel
BR24L01AFVM-WTR	Rohm	1Kbit	400 kHz	Not specified	1.8V ~ 5.5V	8-MSOP	Active	Tape & Reel

Engineering Selection Recommendations

Tier 1 - Direct Substitutes (Identical Electrical Specifications):

24LC014H-I/MS represents the closest substitute, maintaining identical electrical parameters and 1 MHz clock frequency with 400 ns access time. The only difference is packaging format (Tube versus Tape & Reel). This part is suitable for direct replacement when packaging format constraints do not apply.

Tier 2 - Microchip Manufacturer Alternatives (Reduced Clock Frequency):

24LC014T-I/MS and 24LC01BT-I/MS operate at 400 kHz clock frequency with extended access times (900 ns and 4.6 µs respectively). These parts maintain identical supply voltage range and temperature specifications. Selection is appropriate for applications where reduced I2C bus speed is acceptable and does not impact system timing requirements.

AT24C01D-XHM-T and AT24C01D-XHM-B maintain 1 MHz clock frequency but operate within reduced supply voltage range (1.7V ~ 3.6V). These parts are suitable only for systems operating within this narrower voltage window. Package format differs to 8-TSSOP configuration.

Tier 3 - Cross-Manufacturer Alternatives (Rohm Semiconductor):

BR24G01FVM-3AGTTR provides 1 MHz operation in 8-MSOP package with extended supply voltage range (1.6V ~ 5.5V) and Active product status. This part is suitable for new designs requiring cross-manufacturer sourcing.

BR24G01FVT-3GE2 and BR24L01AFVM-WTR operate at 400 kHz with extended voltage ranges. BR24L01AFV-WE2 carries "Not For New Designs" status and should be avoided for new applications.

Selection Criteria:

For new designs: Select from parts with Active product status (24LC014H-I/MS, 24LC014T-I/MS, 24LC01BT-I/MS, AT24C01D-XHM-T, AT24C01D-XHM-B, BR24G01FVM-3AGTTR, BR24G01FVT-3GE2, BR24L01AFVM-WTR)
For existing designs requiring direct replacement: 24LC014H-I/MS
For reduced-speed applications: 24LC014T-I/MS or 24LC01BT-I/MS
For low-voltage systems (1.7V ~ 3.6V): AT24C01D-XHM-T or AT24C01D-XHM-B
For extended voltage range (1.6V ~ 5.5V): BR24G01FVM-3AGTTR or BR24G01FVT-3GE2

Frequently Asked Questions (FAQ)

Q: Can 24LC014T-I/MS replace 24LC014HT-I/MS directly?

A: 24LC014T-I/MS is electrically compatible but operates at 400 kHz instead of 1 MHz clock frequency. Direct replacement is possible only if the application does not require 1 MHz I2C bus speed. Access time increases from 400 ns to 900 ns. Verify system timing requirements before substitution.

Q: What is the difference between 24LC014H-I/MS and 24LC014HT-I/MS?

A: Both parts are electrically identical with 1 MHz clock frequency and 400 ns access time. The difference is packaging format: 24LC014H-I/MS is supplied in Tube packaging while 24LC014HT-I/MS is supplied in Tape & Reel (TR) format. Selection depends on assembly line requirements and volume handling procedures.

Q: Are AT24C01D parts compatible with 24LC014HT-I/MS?

A: AT24C01D-XHM-T and AT24C01D-XHM-B maintain 1 MHz clock frequency and I2C interface but operate within reduced supply voltage range (1.7V ~ 3.6V) compared to the original part (2.5V ~ 5.5V). Package format differs to 8-TSSOP. Compatibility depends on system voltage requirements and PCB layout constraints.

Q: Can Rohm Semiconductor parts substitute for Microchip parts?

A: Yes, Rohm BR24G01 and BR24L01 series parts maintain 1Kbit capacity, I2C interface, and compatible package configurations. BR24G01FVM-3AGTTR provides 1 MHz operation with Active product status. BR24G01FVT-3GE2 and BR24L01AFVM-WTR operate at 400 kHz. Verify voltage supply range compatibility: Rohm parts support 1.6V ~ 5.5V or 1.8V ~ 5.5V ranges, which encompass the original 2.5V ~ 5.5V specification.

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

A: Parts marked "Not For New Designs" (BR24G01FVJ-3GTE2, BR24L01AFV-WE2) are legacy components still available for existing product support but should not be selected for new circuit designs. Use Active status parts for new applications.

Q: Does package type affect electrical compatibility?

A: Package type (8-MSOP, 8-TSSOP, 8-LSSOP) does not affect electrical compatibility but impacts PCB layout, assembly procedures, and thermal characteristics. Pin configuration remains consistent across compatible packages. Verify PCB footprint compatibility before substitution.

Q: What is the significance of MSL (Moisture Sensitivity Level)?

A: MSL ratings indicate moisture sensitivity during storage and handling. MSL 1 (Unlimited) allows indefinite storage without special precautions. MSL 2 (1 Year) and MSL 3 (168 Hours) require controlled storage conditions. 24LC014HT-I/MS has MSL 1, while 24LC014H-I/MS has MSL 2. Verify storage and handling procedures match component MSL requirements.

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