24LC014HT-I/MNY EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC014HT-I/MNY is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 1 MHz with 400 ns access time. The device is packaged in 8-TDFN (2x3) surface mount configuration and operates across a 2.5V to 5.5V supply voltage range. This part maintains active product status and full RoHS3 compliance with unlimited moisture sensitivity rating.

Equivalent and substitute parts are identified when they maintain functional compatibility through matching memory capacity, interface protocol, package type, and operating temperature range, while accommodating variations in clock frequency, access time, and supply voltage specifications within acceptable engineering parameters.

Key Parameters

Parameter	Specification
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-TDFN (2x3)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC014HT-I/MNY is determined by the following critical parameters:

Core Compatibility Requirements:

Memory Size: 1Kbit (128 x 8 organization)
Memory Interface: I2C protocol
Package: 8-TDFN or equivalent 8-pin surface mount footprint (2x3 dimensions)
Operating Temperature Range: -40°C ~ 85°C minimum
Write Cycle Time: 5ms

Variable Parameters Allowing Substitution:

Clock Frequency: 400 kHz to 1 MHz (lower frequencies remain compatible)
Access Time: 400 ns to 4.6 µs (longer access times acceptable)
Supply Voltage Range: Minimum 1.6V to 2.5V; Maximum 3.6V to 5.5V (overlapping ranges acceptable)
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) interchangeable for component selection

Substitute parts maintain functional equivalence when all core requirements are met, regardless of variations in performance characteristics that do not degrade system operation.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Supply Voltage	Package	Packaging Format	RoHS Status
24LC014HT-I/MNY	Microchip Technology	1Kbit	1 MHz	400 ns	2.5V ~ 5.5V	8-TDFN (2x3)	Tape & Reel (TR)	ROHS3 Compliant
24AA014T-I/MNY	Microchip Technology	1Kbit	400 kHz	900 ns	1.7V ~ 5.5V	8-TDFN (2x3)	Cut Tape (CT)	ROHS3 Compliant
24AA01HT-I/MNY	Microchip Technology	1Kbit	400 kHz	900 ns	1.7V ~ 5.5V	8-TDFN (2x3)	Tape & Reel (TR)	ROHS3 Compliant
24LC01BHT-I/MNY	Microchip Technology	1Kbit	400 kHz	900 ns	2.5V ~ 5.5V	8-TDFN (2x3)	Cut Tape (CT)	ROHS3 Compliant
24LC01BT-I/MNY	Microchip Technology	1Kbit	400 kHz	4.6 µs	2.5V ~ 5.5V	8-TDFN (2x3)	Cut Tape (CT)	ROHS3 Compliant
AT24C01D-MAHM-T	Microchip Technology	1Kbit	1 MHz	4.5 µs	1.7V ~ 3.6V	8-UDFN (2x3)	Cut Tape (CT) & Digi-Reel®	ROHS3 Compliant
BR24G01NUX-3TTR	Rohm Semiconductor	1Kbit	400 kHz	Not Specified	1.6V ~ 5.5V	8-UFDFN (2x3)	Tape & Reel (TR)	ROHS3 Compliant

Engineering Selection Recommendations

Microchip Technology 24LC Series (Primary Substitutes): The 24AA014T-I/MNY, 24AA01HT-I/MNY, 24LC01BHT-I/MNY, and 24LC01BT-I/MNY maintain full functional compatibility with the 24LC014HT-I/MNY. All devices share identical 1Kbit memory capacity, I2C interface, 8-TDFN package footprint, and -40°C to 85°C operating temperature range. These parts differ in clock frequency (400 kHz vs. 1 MHz) and access time specifications, which do not prevent substitution in applications where the original 1 MHz performance is not critical. Supply voltage compatibility varies: 24AA series devices operate from 1.7V minimum, while 24LC series maintain 2.5V minimum specification matching the original part.

Microchip Technology AT24C01D-MAHM-T: This part provides 1 MHz clock frequency matching the original specification but operates within a narrower supply voltage range (1.7V ~ 3.6V), making it unsuitable for applications requiring the full 5.5V upper limit. The 8-UDFN package differs from the 8-TDFN footprint, requiring PCB layout verification. This part is suitable only when supply voltage requirements do not exceed 3.6V.

Rohm Semiconductor BR24G01NUX-3TTR: This alternative manufacturer device maintains 1Kbit capacity, I2C interface, and compatible operating temperature range. The 8-UFDFN package provides equivalent 2x3 dimensions to the original 8-TDFN specification. Supply voltage range (1.6V ~ 5.5V) exceeds the original specification. Clock frequency is specified at 400 kHz. This part is suitable for applications where manufacturer diversification is required.

Selection Criteria:

For direct pin-compatible replacement with identical performance: 24AA01HT-I/MNY (Tape & Reel format)
For cost optimization with acceptable performance variation: 24LC01BHT-I/MNY or 24LC01BT-I/MNY
For extended low-voltage operation: 24AA014T-I/MNY or 24AA01HT-I/MNY
For alternative manufacturer sourcing: BR24G01NUX-3TTR

All recommended substitutes maintain ROHS3 compliance and active product status.

Frequently Asked Questions (FAQ)

Q: Can I substitute 24AA01HT-I/MNY for 24LC014HT-I/MNY in my design?

A: Yes. Both devices share 1Kbit capacity, I2C interface, 8-TDFN package, and -40°C to 85°C operating range. The 24AA01HT-I/MNY operates at 400 kHz clock frequency versus the original 1 MHz specification. This substitution is valid when system timing does not require the higher clock speed. The 24AA01HT-I/MNY supports lower supply voltage (1.7V minimum) compared to the original 2.5V minimum.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) packaging?

A: Tape & Reel and Cut Tape formats represent different packaging and delivery methods for the same component. Tape & Reel packaging is supplied on continuous carrier tape suitable for automated pick-and-place assembly. Cut Tape packaging is supplied as individual tape segments. Both formats contain identical components with identical electrical specifications. Selection depends on assembly process requirements and order quantity.

Q: Why does AT24C01D-MAHM-T have a different package designation (8-UDFN vs. 8-TDFN)?

A: The AT24C01D-MAHM-T uses 8-UDFN (Ultra Dual Flat No-Lead) package while the original uses 8-TDFN (Thin Dual Flat No-Lead) package. Both are 8-pin surface mount packages with 2x3 mm dimensions, but UDFN and TDFN represent different package families with potentially different thermal and mechanical characteristics. PCB footprint verification is required before substitution.

Q: Can I use BR24G01NUX-3TTR as a substitute if my application requires 5.5V operation?

A: Yes. The BR24G01NUX-3TTR supports supply voltage from 1.6V to 5.5V, which encompasses the original specification range of 2.5V to 5.5V. This Rohm Semiconductor device is suitable for applications requiring the full 5.5V upper limit. Verify package footprint compatibility (8-UFDFN vs. 8-TDFN) with your PCB design.

Q: What happens if I use a 400 kHz device in place of the 1 MHz original?

A: The 400 kHz clock frequency is half the original specification. This reduces the maximum I2C bus speed but does not prevent component operation. Substitution is valid when system timing requirements do not mandate 1 MHz operation. All 400 kHz alternatives (24AA014T-I/MNY, 24AA01HT-I/MNY, 24LC01BHT-I/MNY, 24LC01BT-I/MNY, BR24G01NUX-3TTR) maintain full functional compatibility with identical memory capacity and interface protocol.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed maintain ROHS3 compliance status, matching the original 24LC014HT-I/MNY specification. All parts are also REACH Unaffected and classified under ECCN EAR99.

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