AT34C02-10PI EEPROM Equivalent & Substitute Parts

Part Overview

The AT34C02-10PI is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-DIP form factor. This device operates at 400 kHz I2C clock frequency with 900 ns access time and supports supply voltages from 4.5V to 5.5V across an operating temperature range of -40°C to 85°C. The AT34C02-10PI is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements.

Substiute Parts

AT34C02-10PI

Microchip TechnologyIn Stock: 820AT34C02-10PI Datasheet

Current PartRFQ

24AA024H-I/P

Microchip TechnologyIn Stock: 189024AA024H-I/P Datasheet

DirectRFQ

24C02C/P

Microchip TechnologyIn Stock: 396324C02C/P Datasheet

MFR RecommendedRFQ

24LC02B/P

Microchip TechnologyIn Stock: 1513224LC02B/P Datasheet

MFR RecommendedRFQ

24C02C-I/P

Microchip TechnologyIn Stock: 202024C02C-I/P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT34C02-10PI is determined by strict alignment across the following critical parameters: memory size (2Kbit), memory organization (256 x 8), I2C interface protocol, 400 kHz clock frequency, 8-DIP package configuration, and through-hole mounting type. All substitute parts listed maintain these core specifications. Voltage supply range, operating temperature range, access time, and write cycle time are secondary parameters that define operational compatibility within specific application contexts. Parts are grouped based on their substitution classification: direct manufacturer alternatives, manufacturer-recommended replacements, and parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

24AA024H-I/P serves as the direct manufacturer alternative, offering active product status with ROHS3 compliance. This part maintains identical memory specifications and I2C frequency while extending the lower voltage supply limit to 1.7V and preserving the full -40°C to 85°C operating temperature range. Write cycle time is reduced to 5ms.

24C02C/P is the manufacturer-recommended replacement, providing active status and ROHS3 compliance. This part maintains voltage supply compatibility (4.5V ~ 5.5V) with the original AT34C02-10PI but operates within a narrower temperature range (0°C ~ 70°C). Access time extends to 4.6 µs with write cycle time of 1.5ms.

24LC02B/P is a manufacturer-recommended option with active product status and verified DiGi-Electronics programmability. It supports a lower voltage supply minimum of 2.5V while maintaining 900 ns access time. Operating temperature range is restricted to 0°C ~ 70°C.

24C02C-I/P is a parametric equivalent offering active status and ROHS3 compliance. This part matches the original voltage supply range (4.5V ~ 5.5V) and full operating temperature range (-40°C ~ 85°C) while providing the fastest write cycle time at 1ms.

All substitute parts are manufactured by Microchip Technology, maintain 8-DIP packaging, and support 400 kHz I2C operation. Selection should be based on specific application requirements regarding voltage supply range, operating temperature constraints, and write cycle performance.

Frequently Asked Questions (FAQ)

Q: Can 24AA024H-I/P replace AT34C02-10PI in all applications? A: 24AA024H-I/P is functionally compatible as a direct substitute. It maintains identical memory capacity, I2C frequency, and access time. The extended lower voltage limit (1.7V vs 4.5V) and preserved temperature range (-40°C ~ 85°C) make it suitable for applications requiring the original specifications. ROHS3 compliance is an additional benefit for new designs.

Q: What is the difference between 24C02C/P and 24C02C-I/P? A: Both parts share the same base product number (24C02C) and core I2C EEPROM specifications. The primary differences are operating temperature range (0°C ~ 70°C for 24C02C/P versus -40°C ~ 85°C for 24C02C-I/P) and write cycle time (1.5ms versus 1ms). The 24C02C-I/P variant is suitable for extended temperature applications.

Q: Is 24LC02B/P suitable for low-voltage applications? A: 24LC02B/P supports a minimum supply voltage of 2.5V, lower than the original AT34C02-10PI (4.5V minimum). This makes it suitable for applications requiring lower voltage operation. However, its operating temperature range is limited to 0°C ~ 70°C.

Q: Why do substitute parts have different write cycle times? A: Write cycle time is a performance characteristic that varies by device variant within the same memory family. Faster write cycles (1ms for 24C02C-I/P) enable quicker data storage operations, while longer cycles (10ms for AT34C02-10PI) represent older technology. All variants maintain I2C protocol compatibility and identical memory capacity.

Q: Are all substitute parts in the same 8-DIP package? A: Yes, all listed substitute parts use the 8-DIP (0.300", 7.62mm) package configuration with through-hole mounting, ensuring mechanical and electrical compatibility with AT34C02-10PI PCB layouts.

Q: Which substitute offers the best compliance for new designs? A: All active substitute parts (24AA024H-I/P, 24C02C/P, 24LC02B/P, and 24C02C-I/P) are ROHS3 compliant. Selection should be based on specific voltage supply and temperature requirements rather than compliance alone, as all meet current regulatory standards.