AT34C02-10PI-2.7 Equivalent & Substitute Parts

Part Overview

The AT34C02-10PI-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 2.7V to 5.5V supply voltage range in an 8-DIP through-hole package.

The AT34C02-10PI-2.7 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this EEPROM memory IC.

Substiute Parts

AT34C02-10PI-2.7

Microchip TechnologyIn Stock: 945AT34C02-10PI-2.7 Datasheet

Current PartRFQ

24AA024H-I/P

Microchip TechnologyIn Stock: 189024AA024H-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT34C02-10PI-2.7 is determined by the following critical parameters:

• Memory capacity (2Kbit) and organization (256 x 8)
• I2C interface protocol at 400 kHz operation
• Access time specification (900 ns)
• Package form factor (8-DIP through-hole)
• Operating voltage range compatibility
• Operating temperature range (-40°C ~ 85°C)

The 24AA024H-I/P qualifies as a direct substitute based on matching all critical electrical and mechanical parameters. Both devices share identical memory specifications, I2C interface characteristics, access time, package configuration, and operating temperature range. Voltage supply range differences are addressed in the parameter comparison section.

Parameter Comparison

Engineering Selection Recommendations

The 24AA024H-I/P is a qualified substitute for the AT34C02-10PI-2.7 based on the following engineering criteria:

Product Status: The AT34C02-10PI-2.7 is obsolete, while the 24AA024H-I/P maintains active manufacturing status, ensuring long-term availability and supply chain continuity.

Electrical Compatibility: Both devices operate identically across all critical electrical parameters including memory capacity, I2C interface, clock frequency, access time, and operating temperature range. The 24AA024H-I/P provides an extended voltage supply range (1.7V ~ 5.5V versus 2.7V ~ 5.5V), offering enhanced flexibility for low-voltage applications while maintaining full compatibility with the original specification.

Performance Enhancement: The 24AA024H-I/P features a 5 ms write cycle time compared to the original 10 ms specification, providing improved write performance without compromising functional compatibility.

Compliance Status: The 24AA024H-I/P is ROHS3 compliant, meeting current regulatory requirements, whereas the AT34C02-10PI-2.7 is RoHS non-compliant. Both devices share identical REACH and ECCN classifications.

Package Compatibility: Identical 8-DIP through-hole package configuration ensures direct PCB footprint compatibility without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 24AA024H-I/P directly replace the AT34C02-10PI-2.7 on existing PCBs?

A: Yes. Both devices use identical 8-DIP through-hole package dimensions (0.300", 7.62mm). Pin-to-pin compatibility and electrical interface characteristics are identical, enabling direct socket substitution without PCB modifications.

Q: What is the significance of the different write cycle times (10 ms vs. 5 ms)?

A: The 24AA024H-I/P write cycle time of 5 ms is faster than the original 10 ms specification. This represents an improvement in performance. Systems designed for the original 10 ms timing will operate correctly with the faster substitute without functional issues.

Q: Does the extended voltage range of the 24AA024H-I/P (1.7V ~ 5.5V) affect compatibility?

A: No. The extended lower voltage limit (1.7V versus 2.7V) provides additional operational flexibility. Systems operating within the original 2.7V ~ 5.5V range will function identically with the substitute. The wider range does not introduce compatibility concerns.

Q: Are there any differences in I2C protocol or interface behavior?

A: No. Both devices implement identical I2C interface specifications at 400 kHz clock frequency with 900 ns access time. Protocol behavior, timing characteristics, and communication requirements are functionally equivalent.

Q: What is the impact of RoHS compliance differences?

A: The 24AA024H-I/P is ROHS3 compliant while the AT34C02-10PI-2.7 is RoHS non-compliant. For new designs or systems subject to RoHS regulations, the 24AA024H-I/P meets current compliance requirements. For legacy system maintenance, both devices remain functionally compatible.

Q: Is the 24AA024H-I/P available in the same packaging format?

A: Yes. The 24AA024H-I/P is supplied in 8-PDIP packaging (tube format), matching the through-hole DIP configuration of the original part. Mechanical and electrical interface compatibility is maintained.