Equivalent & Substitute Parts for 24AA02UIDT-I/SN

Part Overview

The 24AA02UIDT-I/SN is a 2Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 8-SOIC surface mount packaging. This device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical parameters, memory capacity, interface protocol, and physical packaging specifications align with the original component, enabling direct replacement in circuit applications without functional degradation.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Format	EEPROM
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24AA02UIDT-I/SN are qualified based on the following critical parameters:

Memory capacity of 2Kbit
EEPROM non-volatile memory format
I2C serial interface protocol
400 kHz clock frequency operation
900 ns access time specification
5ms write cycle time
Supply voltage range 1.7V ~ 5.5V
Operating temperature range -40°C ~ 85°C
8-SOIC surface mount package with 3.90mm width
ROHS3 compliance and REACH unaffected status

Substitutes are grouped by manufacturer and memory organization variant. Microchip Technology parts include 24AA024T-I/SN, 24AA025E48T-I/SN, 24AA025E64T-I/SN, 24AA025T-I/SN, 24AA025UIDT-I/SN, 24AA02E48T-I/SN, and 24AA02T-I/SN. STMicroelectronics provides M24C02-FMN6TP as a cross-manufacturer equivalent. All substitutes maintain identical electrical performance specifications and package footprint compatibility.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Memory Organization	Interface	Clock Frequency	Access Time	Write Cycle	Supply Voltage	Operating Temp	Package	Packaging Type	Inventory (Pcs)
24AA02UIDT-I/SN	Microchip Technology	2Kbit	128 x 8 x 2	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	50400
24AA024T-I/SN	Microchip Technology	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	3700
24AA025E48T-I/SN	Microchip Technology	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	16300
24AA025E64T-I/SN	Microchip Technology	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	10200
24AA025T-I/SN	Microchip Technology	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	4138
24AA025UIDT-I/SN	Microchip Technology	2Kbit	128 x 8 x 2	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	6300
24AA02E48T-I/SN	Microchip Technology	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	13600
24AA02T-I/SN	Microchip Technology	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	6640
M24C02-FMN6TP	STMicroelectronics	2Kbit	256 x 8	I2C	400 kHz	900 ns	5ms	1.7V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	27113

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance. Selection between Microchip Technology and STMicroelectronics equivalents depends on supply chain availability and inventory requirements. Parts with Tape & Reel packaging (24AA024T-I/SN, 24AA025T-I/SN) are suitable for high-volume automated assembly operations. Cut Tape & Digi-Reel variants (24AA025E48T-I/SN, 24AA025E64T-I/SN, 24AA02E48T-I/SN, 24AA02T-I/SN, M24C02-FMN6TP) accommodate lower-volume or mixed-component procurement. Memory organization differences (128 x 8 x 2 versus 256 x 8) do not affect functional equivalence for I2C EEPROM applications. Moisture Sensitivity Level (MSL) varies between Level 1 (Unlimited) and Level 3 (168 Hours); MSL 1 parts are preferred for extended storage or humid environments.

Frequently Asked Questions (FAQ)

Q: Can 24AA02T-I/SN replace 24AA02UIDT-I/SN directly?

A: Yes. Both parts share identical electrical specifications: 2Kbit EEPROM, I2C 400 kHz interface, 900 ns access time, 5ms write cycle, 1.7V–5.5V supply range, and -40°C to 85°C operating temperature. The primary difference is packaging format: 24AA02UIDT-I/SN uses Cut Tape & Digi-Reel, while 24AA02T-I/SN uses Cut Tape & Digi-Reel. Both are ROHS3 compliant and Active status.

Q: What is the difference between memory organization 128 x 8 x 2 and 256 x 8?

A: Memory organization describes internal addressing architecture. Both configurations deliver 2Kbit total capacity and are functionally equivalent for I2C EEPROM applications. The organization difference does not affect pin compatibility, electrical performance, or protocol operation.

Q: Is M24C02-FMN6TP from STMicroelectronics compatible with Microchip parts?

A: Yes. M24C02-FMN6TP meets all electrical and physical specifications of the 24AA02UIDT-I/SN: 2Kbit EEPROM, I2C 400 kHz, 900 ns access time, 5ms write cycle, identical supply voltage and temperature range, and 8-SOIC package. Cross-manufacturer substitution is valid.

Q: Does packaging type (Cut Tape vs. Tape & Reel) affect electrical performance?

A: No. Packaging type affects only procurement and assembly logistics. Cut Tape & Digi-Reel and Tape & Reel variants of the same part number deliver identical electrical functionality and pin configuration.

Q: What is Moisture Sensitivity Level (MSL) and why does it vary?

A: MSL indicates maximum exposure time to moisture before component degradation. MSL 1 (Unlimited) allows indefinite storage in standard conditions. MSL 3 (168 Hours) requires controlled humidity storage. For applications with extended shelf life or humid environments, MSL 1 parts are preferred.

Q: Are all substitute parts currently in stock?

A: Inventory levels vary. 24AA02UIDT-I/SN has 50,400 units available. M24C02-FMN6TP has 27,113 units. Other Microchip variants range from 3,700 to 16,300 units. Verify current availability with your supplier.

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