AT24C02A-10PI EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT24C02A-10PI is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-DIP through-hole configuration. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The AT24C02A-10PI operates at 400 kHz I2C clock frequency with 900 ns access time and requires a 4.5V to 5.5V supply voltage. Substitute parts must maintain functional compatibility across memory capacity, interface protocol, and physical packaging while accommodating variations in operating parameters.

Substiute Parts

AT24C02A-10PI

Microchip TechnologyIn Stock: 953AT24C02A-10PI Datasheet

Current PartRFQ

24AA024H-I/P

Microchip TechnologyIn Stock: 189024AA024H-I/P Datasheet

DirectRFQ

24C02C-E/P

Microchip TechnologyIn Stock: 222724C02C-E/P Datasheet

DirectRFQ

24AA02-I/P

Microchip TechnologyIn Stock: 128824AA02-I/P Datasheet

MFR RecommendedRFQ

24C02C/P

Microchip TechnologyIn Stock: 396324C02C/P Datasheet

MFR RecommendedRFQ

24C02C-I/P

Microchip TechnologyIn Stock: 202024C02C-I/P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AT24C02A-10PI are classified based on electrical and mechanical compatibility within the following criteria:

Core Compatibility Requirements:

• Memory capacity: 2Kbit (256 x 8 organization)
• Interface protocol: I2C
• Package type: 8-DIP through-hole
• Physical dimensions: 0.300" (7.62mm) DIP spacing

Substitution Categories:

MFR Recommended Substitutes maintain full electrical equivalence to the original part specifications, including 400 kHz clock frequency, 900 ns access time, and compatible operating temperature ranges. These parts are actively produced and carry manufacturer endorsement for direct replacement.

Direct Manufacturer Substitutes provide functional equivalence with variations in supply voltage range or operating temperature specifications. These parts support the same I2C protocol and memory organization but may operate across different voltage or temperature windows.

Parametric Equivalents maintain core memory and interface specifications while introducing variations in access time or write cycle time. These parts are electrically compatible but may exhibit different performance characteristics in timing-sensitive applications.

Parameter Comparison

Engineering Selection Recommendations

24AA02-I/P is the manufacturer-recommended primary substitute. This part is actively produced, ROHS3 compliant, and maintains identical electrical specifications to the AT24C02A-10PI including 400 kHz clock frequency, 900 ns access time, and -40°C to 85°C operating temperature range. The 24AA02-I/P extends supply voltage compatibility to 1.7V minimum, providing broader application flexibility. DiGi-Electronics verification status is confirmed for this part.

24AA024H-I/P serves as a direct substitute with extended supply voltage range (1.7V ~ 5.5V) and identical timing specifications. This part is actively produced and ROHS3 compliant. The wider voltage range accommodates low-power applications while maintaining full functional compatibility.

24C02C/P is manufacturer-recommended for applications where the operating temperature range of 0°C to 70°C is acceptable. This part maintains 400 kHz clock frequency and is actively produced with ROHS3 compliance. The narrower temperature range may limit use in industrial or extended-temperature environments.

24C02C-I/P provides parametric equivalence with identical clock frequency and access time but reduced write cycle time (1 ms versus 5 ms). This part is actively produced and ROHS3 compliant, suitable for applications benefiting from faster write operations within the 4.5V to 5.5V supply range.

24C02C-E/P operates at reduced clock frequency (100 kHz) with extended operating temperature range (-40°C to 125°C). This part is actively produced and ROHS3 compliant, appropriate for temperature-critical applications where reduced I2C bus speed is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the 24AA02-I/P directly replace the AT24C02A-10PI in existing designs?

A: Yes. The 24AA02-I/P maintains identical memory capacity (2Kbit), I2C interface protocol, clock frequency (400 kHz), access time (900 ns), operating temperature range (-40°C to 85°C), and 8-DIP package configuration. The extended supply voltage range (1.7V to 5.5V) provides additional design flexibility without compromising compatibility.

Q: What is the difference between the 24C02C/P and 24C02C-I/P?

A: Both parts operate at 400 kHz I2C clock frequency and share identical memory specifications. The 24C02C/P operates across 0°C to 70°C temperature range with 1.5 ms write cycle time, while the 24C02C-I/P operates across -40°C to 85°C with 1 ms write cycle time. Selection depends on application temperature requirements and write performance needs.

Q: Why does the 24C02C-E/P operate at 100 kHz instead of 400 kHz?

A: The 24C02C-E/P is specified for 100 kHz I2C operation. This reduced clock frequency is offset by extended operating temperature range (-40°C to 125°C), making this part suitable for high-temperature industrial applications where standard 400 kHz operation is not required.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All active substitute parts listed (24AA02-I/P, 24AA024H-I/P, 24C02C/P, 24C02C-E/P, 24C02C-I/P) are ROHS3 compliant. The original AT24C02A-10PI is RoHS non-compliant due to its obsolete status.

Q: Can I use a substitute part with a narrower operating temperature range in my application?

A: Only if your application operates within the specified temperature window. The 24C02C/P is limited to 0°C to 70°C operation. If your design requires -40°C to 85°C operation, use 24AA02-I/P, 24AA024H-I/P, 24C02C-I/P, or 24C02C-E/P instead.

Q: Do all substitute parts use the same 8-DIP package?

A: Yes. All substitute parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging, ensuring direct mechanical compatibility with existing PCB layouts and socket configurations.