AT24C02A-10PI-2.5 Equivalent & Substitute Parts

Part Overview

The AT24C02A-10PI-2.5 is a 2Kbit EEPROM memory IC with I2C interface operating at 400 kHz, manufactured by Microchip Technology. This device features 256 x 8 memory organization, 900 ns access time, and operates across a 2.5V to 5.5V supply voltage range in an 8-DIP through-hole package. The part is currently listed as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Memory Size	2Kbit
Memory Organization	256 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-DIP (0.300", 7.62mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution for the AT24C02A-10PI-2.5 is determined by strict equivalence across the following critical parameters: 2Kbit memory capacity, 256 x 8 organization, I2C interface protocol, 400 kHz clock frequency, 900 ns access time, 5ms write cycle time, 8-DIP through-hole package, and operating temperature range of -40°C to 85°C.

The substitute parts listed below maintain these core electrical and mechanical specifications. Voltage supply range variations are permitted within the allowed tolerance window. Product status and RoHS compliance differ among substitutes but do not affect functional equivalence for the specified memory and interface parameters.

Parameter Comparison

Parameter	AT24C02A-10PI-2.5	24AA024H-I/P	24LC024-I/P	24LC025-I/P	24LC02B-I/P	24LC02BH-I/P
Memory Size	2Kbit	2Kbit	2Kbit	2Kbit	2Kbit	2Kbit
Memory Organization	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8
Memory Interface	I2C	I2C	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	400 kHz	400 kHz	400 kHz
Access Time	900 ns	900 ns	900 ns	900 ns	900 ns	900 ns
Write Cycle Time	5ms	5ms	5ms	5ms	5ms	5ms
Voltage Supply Range	2.5V ~ 5.5V	1.7V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole
Product Status	Obsolete	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts maintain functional equivalence to the AT24C02A-10PI-2.5 across memory capacity, interface protocol, timing specifications, and package form factor. Selection among substitutes should prioritize active product status and RoHS3 compliance for new designs and production continuity.

The 24LC02B-I/P offers the highest inventory availability (5310 pcs) and carries verified DiGi-Electronics programmable status. The 24AA024H-I/P provides the widest voltage supply range (1.7V to 5.5V), extending operational capability to lower supply voltages. The 24LC024-I/P and 24LC025-I/P maintain identical electrical specifications to the original part with active status and ROHS3 compliance. The 24LC02BH-I/P is functionally equivalent with active status and ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can I directly replace AT24C02A-10PI-2.5 with any of the listed substitutes?

A: Yes. All listed parts maintain identical memory capacity (2Kbit), organization (256 x 8), I2C interface, clock frequency (400 kHz), access time (900 ns), write cycle time (5ms), operating temperature range (-40°C to 85°C), and 8-DIP through-hole package specifications. Electrical and mechanical compatibility is assured.

Q: What is the difference between 24AA024H-I/P and 24LC024-I/P?

A: Both parts are functionally equivalent for the AT24C02A-10PI-2.5 application. The 24AA024H-I/P operates across a wider voltage supply range (1.7V to 5.5V) compared to 24LC024-I/P (2.5V to 5.5V). Selection depends on the minimum supply voltage requirement of your application.

Q: Why is the original AT24C02A-10PI-2.5 listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Microchip Technology. Active substitute parts with identical specifications are available to ensure design continuity and production support.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 compliance certification, meeting current environmental and material restriction standards. The original AT24C02A-10PI-2.5 is RoHS non-compliant.

Q: Does package type differ among substitutes?

A: No. All substitute parts use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin configuration and mechanical dimensions, ensuring direct board-level compatibility.

Q: Which substitute has the best inventory availability?

A: The 24LC02B-I/P has the highest inventory level at 5310 pcs new original in stock.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message