FT24C02A-UTR-T EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The FT24C02A-UTR-T is a 2Kbit I2C EEPROM memory IC manufactured by Fremont Micro Devices Ltd, operating at 1 MHz clock frequency with 550 ns access time. This device is actively produced and widely used in embedded systems requiring non-volatile serial memory storage. The part is supplied in Tape & Reel packaging with 8-TSSOP surface mount configuration, RoHS3 compliant, and rated for -40°C to 85°C operating temperature range with 1.8V to 5.5V supply voltage compatibility.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design flexibility demands components from different manufacturers with identical or compatible electrical and mechanical specifications.

Key Parameters

Parameter	FT24C02A-UTR-T
Memory Size	2Kbit
Memory Organization	256 x 8
Memory Interface	I2C
Clock Frequency	1 MHz
Access Time	550 ns
Write Cycle Time	5 ms
Voltage Supply Range	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the FT24C02A-UTR-T are grouped based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Critical Parameters (Must Match):

Memory Size: 2Kbit
Memory Organization: 256 x 8
Memory Interface: I2C
Package / Case: 8-TSSOP (0.173", 4.40mm Width)
Mounting Type: Surface Mount
RoHS Status: ROHS3 Compliant

Performance Parameters (Determine Functional Equivalence):

Clock Frequency: 1 MHz (primary part specification)
Access Time: 550 ns (primary part specification)
Voltage Supply Range: Must encompass or match 1.8V ~ 5.5V
Operating Temperature: Must support -40°C ~ 85°C minimum

Secondary Considerations:

Packaging format (Tape & Reel, Cut Tape, Tube) affects procurement and assembly processes but does not impact electrical function
Moisture Sensitivity Level: Lower MSL values indicate better shelf-life stability

Substitute parts are divided into two categories:

Category A - Direct Equivalents (1 MHz, 550 ns): Parts with identical clock frequency and access time specifications, ensuring drop-in replacement capability.

Category B - Functional Alternatives (400 kHz, 900 ns): Parts with reduced clock frequency and longer access time, suitable for applications where the primary part's performance specifications exceed system requirements.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Voltage Supply	Operating Temp	Package	Packaging Format	RoHS Status	MSL
FT24C02A-UTR-T	Fremont Micro Devices Ltd	2Kbit	1 MHz	550 ns	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel (TR)	ROHS3	1
AT24CS02-XHM-T	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Cut Tape (CT) & Digi-Reel®	ROHS3	1
AT24HC02C-XHM-T	Microchip Technology	2Kbit	1 MHz	550 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Cut Tape (CT) & Digi-Reel®	ROHS3	1
AT34C02D-XHM-T	Microchip Technology	2Kbit	1 MHz	Not Specified	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Cut Tape (CT) & Digi-Reel®	ROHS3	3
BR24G02FVT-3AGE2	Rohm Semiconductor	2Kbit	1 MHz	Not Specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel (TR)	ROHS3	1
24AA02-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tube	ROHS3	1
24AA024-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tube	ROHS3	1
24AA024T-I/ST	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel (TR)	ROHS3	1
34AA02T-E/ST	Microchip Technology	2Kbit	400 kHz	900 ns	1.7V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Cut Tape (CT) & Digi-Reel®	ROHS3	1
BR24G02FVT-3GE2	Rohm Semiconductor	2Kbit	400 kHz	Not Specified	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel (TR)	ROHS3	1
BR24L02FVT-WE2	Rohm Semiconductor	2Kbit	400 kHz	Not Specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel (TR)	ROHS3	1

Engineering Selection Recommendations

Category A - Direct Performance Equivalents (1 MHz Operation):

The following parts provide electrical and mechanical equivalence to the FT24C02A-UTR-T with 1 MHz clock frequency and 550 ns access time specifications:

AT24CS02-XHM-T (Microchip Technology): Verified equivalent with identical performance parameters. Supply voltage range 1.7V ~ 5.5V encompasses the primary part specification. MSL 1 rating ensures unlimited shelf life. Available in Cut Tape & Digi-Reel® packaging.
AT24HC02C-XHM-T (Microchip Technology): Functionally equivalent with matching 1 MHz and 550 ns specifications. Supply voltage 1.7V ~ 5.5V and MSL 1 rating provide full compatibility. Available in Cut Tape & Digi-Reel® packaging.
AT34C02D-XHM-T (Microchip Technology): Meets 1 MHz clock frequency requirement. MSL 3 rating indicates 168-hour moisture sensitivity, requiring controlled storage conditions compared to MSL 1 alternatives. Supply voltage 1.7V ~ 5.5V is compatible.
BR24G02FVT-3AGE2 (Rohm Semiconductor): 1 MHz operation with supply voltage range 1.6V ~ 5.5V (lower minimum voltage than primary part). MSL 1 rating. Available in Tape & Reel packaging matching the primary part format.

Category B - Functional Alternatives (400 kHz Operation):

The following parts operate at reduced clock frequency (400 kHz) and longer access time (900 ns), suitable for applications where the primary part's performance specifications exceed system requirements:

24AA02-I/ST (Microchip Technology): 400 kHz operation, 900 ns access time. Supply voltage 1.7V ~ 5.5V. MSL 1 rating. Available in Tube packaging.
24AA024-I/ST (Microchip Technology): 400 kHz operation, 900 ns access time. Supply voltage 1.7V ~ 5.5V. MSL 1 rating. Available in Tube packaging.
24AA024T-I/ST (Microchip Technology): 400 kHz operation, 900 ns access time. Supply voltage 1.7V ~ 5.5V. MSL 1 rating. Available in Tape & Reel packaging. DiGi-Electronics Programmable status verified.
34AA02T-E/ST (Microchip Technology): 400 kHz operation, 900 ns access time. Extended operating temperature range -40°C ~ 125°C. Supply voltage 1.7V ~ 5.5V. MSL 1 rating. Available in Cut Tape & Digi-Reel® packaging.
BR24G02FVT-3GE2 (Rohm Semiconductor): 400 kHz operation. Supply voltage 1.6V ~ 5.5V. MSL 1 rating. Available in Tape & Reel packaging.
BR24L02FVT-WE2 (Rohm Semiconductor): 400 kHz operation. Supply voltage 1.8V ~ 5.5V (matching primary part minimum). MSL 1 rating. Available in Tape & Reel packaging.

All substitute parts maintain ROHS3 compliance and 8-TSSOP surface mount package configuration. Selection should prioritize parts with MSL 1 rating for optimal shelf-life stability and consider packaging format requirements for specific manufacturing processes.

Frequently Asked Questions (FAQ)

Q: Can I use a 400 kHz substitute part in place of the FT24C02A-UTR-T?

A: Yes, if your application does not require 1 MHz clock frequency operation. The 400 kHz parts (24AA02-I/ST, 24AA024-I/ST, 24AA024T-I/ST, 34AA02T-E/ST, BR24G02FVT-3GE2, BR24L02FVT-WE2) are functionally compatible with identical memory size, organization, and I2C interface. However, system timing requirements must accommodate the longer 900 ns access time versus the primary part's 550 ns specification.

Q: What is the difference between Tape & Reel, Cut Tape, and Tube packaging?

A: Packaging format affects procurement and assembly processes but does not impact electrical function. Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) & Digi-Reel® provides flexibility for mixed-volume production. Tube packaging is used for lower-volume or manual assembly applications. All formats contain identical components in 8-TSSOP configuration.

Q: Why do some substitute parts have MSL 3 rating instead of MSL 1?

A: MSL (Moisture Sensitivity Level) indicates the component's sensitivity to moisture absorption during storage. MSL 1 (Unlimited) allows indefinite shelf life under normal conditions. MSL 3 (168 Hours) requires controlled storage with desiccant and limits shelf life to 168 hours after opening the moisture barrier bag. For applications with extended inventory holding periods, MSL 1 parts are preferred.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance, matching the primary part's environmental and regulatory status.

Q: What is the minimum supply voltage difference between substitute parts?

A: The primary part FT24C02A-UTR-T operates at 1.8V minimum. Most Microchip substitutes operate at 1.7V minimum, and Rohm parts operate at 1.6V minimum. All parts support the full 5.5V maximum. For applications operating near the lower voltage boundary, verify that the selected substitute part's minimum specification meets system requirements.

Q: Can I interchange AT24CS02-XHM-T and AT24HC02C-XHM-T?

A: Yes, both parts provide identical electrical specifications (1 MHz, 550 ns, 2Kbit I2C EEPROM) and are mechanically compatible in 8-TSSOP package. Selection between them depends on packaging format availability and inventory requirements.

Q: Which substitute part has the widest operating temperature range?

A: The 34AA02T-E/ST operates from -40°C to 125°C, extending 40°C above the primary part's maximum of 85°C. This part is suitable for applications requiring extended high-temperature operation.

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