AT24C02A-10PI-2.7 Equivalent & Substitute Parts

Part Overview

The AT24C02A-10PI-2.7 is a 2Kbit EEPROM memory IC with I2C interface operating at 400 kHz, manufactured by Microchip Technology. This component features 256 x 8 memory organization, 900 ns access time, and operates across a supply voltage range of 2.7V to 5.5V with an operating temperature range of -40°C to 85°C. The device is packaged in an 8-DIP (0.300", 7.62mm) through-hole configuration.

The AT24C02A-10PI-2.7 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and system maintenance.

Substiute Parts

AT24C02A-10PI-2.7

Microchip TechnologyIn Stock: 2257AT24C02A-10PI-2.7 Datasheet

Current PartRFQ

24AA024H-I/P

Microchip TechnologyIn Stock: 189024AA024H-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT24C02A-10PI-2.7 is determined by strict equivalence across the following parameters:

• Memory capacity: 2Kbit with 256 x 8 organization
• Interface protocol: I2C at 400 kHz operation
• Electrical performance: 900 ns access time, 5ms write cycle time
• Power supply compatibility: Voltage range must accommodate 2.7V minimum
• Package format: 8-DIP through-hole configuration
• Temperature rating: -40°C to 85°C operating range

The substitute part 24AA024H-I/P meets all these criteria and maintains functional and electrical equivalence with the original component.

Parameter Comparison

Engineering Selection Recommendations

The 24AA024H-I/P is a direct functional equivalent to the AT24C02A-10PI-2.7. Both components are manufactured by Microchip Technology and share identical memory capacity, organization, interface protocol, and electrical performance specifications.

The 24AA024H-I/P offers the following advantages for new designs and production:

• Active product status ensures long-term availability and supply chain continuity
• ROHS3 compliance meets current environmental and regulatory requirements
• Extended lower voltage limit (1.7V minimum) provides additional operational flexibility compared to the original 2.7V minimum
• Identical package footprint and pinout enable direct board-level substitution

The original AT24C02A-10PI-2.7 is obsolete and should be replaced with the 24AA024H-I/P for all new applications and production runs.

Frequently Asked Questions (FAQ)

Q: Can the 24AA024H-I/P be used as a direct replacement for the AT24C02A-10PI-2.7?

A: Yes. Both components feature identical memory capacity (2Kbit), organization (256 x 8), I2C interface at 400 kHz, access time (900 ns), write cycle time (5ms), operating temperature range (-40°C to 85°C), and 8-DIP package configuration. The 24AA024H-I/P is electrically and functionally equivalent.

Q: What is the difference in voltage supply range between these parts?

A: The AT24C02A-10PI-2.7 operates from 2.7V to 5.5V, while the 24AA024H-I/P operates from 1.7V to 5.5V. The 24AA024H-I/P supports lower voltage operation, making it suitable for a broader range of power supply configurations. Both parts are compatible with standard 3.3V and 5V systems.

Q: Are the pinouts identical?

A: Yes. Both components use the 8-DIP package with identical pinout configuration. No circuit board modifications are required for substitution.

Q: What is the significance of the product status difference?

A: The AT24C02A-10PI-2.7 is classified as obsolete, indicating it is no longer manufactured and availability is limited to existing inventory. The 24AA024H-I/P is an active product with ongoing production and guaranteed long-term availability.

Q: Does the RoHS compliance difference affect compatibility?

A: No. RoHS compliance is a manufacturing and environmental standard. The ROHS3 compliance of the 24AA024H-I/P indicates adherence to current environmental regulations and is preferred for new designs. Both parts are functionally compatible in circuit applications.

Q: Can I use the 24AA024H-I/P in existing designs without modification?

A: Yes. The identical electrical specifications, package format, and pinout allow direct substitution without circuit modifications or firmware changes.