AT34C02-10PC EEPROM Equivalent & Substitute Parts

Part Overview

The AT34C02-10PC is a 2Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-DIP through-hole configuration. This part operates at 400 kHz clock frequency with 900 ns access time and 10ms write cycle time. The AT34C02-10PC is classified as obsolete product status, making substitute parts necessary for new designs and ongoing production requirements. Equivalent and upgraded alternatives maintain core memory functionality while offering improved specifications, active product status, and enhanced compliance certifications.

Substiute Parts

AT34C02-10PC

Microchip TechnologyIn Stock: 801AT34C02-10PC Datasheet

Current PartRFQ

24AA02/P

Microchip TechnologyIn Stock: 91124AA02/P Datasheet

DirectRFQ

24C02C/P

Microchip TechnologyIn Stock: 396324C02C/P Datasheet

DirectRFQ

24C02C-E/P

Microchip TechnologyIn Stock: 222724C02C-E/P Datasheet

UpgradeRFQ

24C02C-I/P

Microchip TechnologyIn Stock: 202024C02C-I/P Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT34C02-10PC is determined by strict equivalence in the following core parameters: memory size (2Kbit), memory organization (256 x 8), memory interface (I2C), package type (8-DIP through-hole), and physical dimensions (0.300", 7.62mm). All substitute parts maintain these mandatory specifications.

Substitute parts are grouped into two categories based on electrical parameter compatibility:

Direct Equivalents maintain identical or compatible electrical specifications including clock frequency (400 kHz), access time (900 ns), and voltage supply range (4.5V ~ 5.5V). These parts provide pin-for-pin compatibility with minimal design changes.

Upgraded Alternatives offer enhanced specifications such as extended temperature ranges (-40°C ~ 85°C or -40°C ~ 125°C), improved write cycle times (1ms to 1.5ms versus 10ms), wider voltage supply ranges (1.7V ~ 5.5V), and active product status with RoHS3 compliance. These parts are suitable for new designs requiring improved reliability and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Minimal Design Changes):

The 24C02C-I/P provides the closest electrical match to the AT34C02-10PC with identical clock frequency (400 kHz) and access time (900 ns). This part maintains 4.5V ~ 5.5V voltage supply compatibility and 8-DIP package equivalence. The 24C02C-I/P offers active product status, ROHS3 compliance, and extended operating temperature range (-40°C ~ 85°C), making it suitable for direct substitution in existing designs.

For New Designs (Enhanced Specifications):

The 24AA02/P offers the widest voltage supply range (1.7V ~ 5.5V) and improved write cycle time (5ms), enabling operation in low-power applications. This part maintains active product status and ROHS3 compliance with verified programmability certification.

The 24C02C-E/P provides the most extended operating temperature range (-40°C ~ 125°C) and is suitable for industrial and automotive applications requiring enhanced thermal performance. This part operates at reduced clock frequency (100 kHz) and includes MSL Level 1 moisture sensitivity rating.

For Performance-Critical Applications:

The 24C02C/P delivers the fastest write cycle time (1.5ms) among all substitutes while maintaining 400 kHz clock frequency and 4.6 µs access time. This part is suitable for applications requiring rapid data write operations.

All substitute parts maintain identical memory capacity (2Kbit), organization (256 x 8), I2C interface, and 8-DIP through-hole package configuration, ensuring functional compatibility with the AT34C02-10PC.

Frequently Asked Questions (FAQ)

Q: Can the 24AA02/P replace the AT34C02-10PC in existing designs?

A: Yes. The 24AA02/P maintains identical memory specifications (2Kbit, 256 x 8, I2C interface), clock frequency (400 kHz), access time (900 ns), and 8-DIP package configuration. The 24AA02/P offers improved write cycle time (5ms versus 10ms) and extended voltage supply range (1.7V ~ 5.5V). Active product status and ROHS3 compliance provide long-term availability and regulatory compliance advantages.

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

A: Both parts share identical memory specifications and 400 kHz clock frequency. The 24C02C-I/P offers extended operating temperature range (-40°C ~ 85°C versus 0°C ~ 70°C) and improved write cycle time (1ms versus 1.5ms). The 24C02C-I/P is recommended for applications requiring wider temperature performance.

Q: Is the 24C02C-E/P suitable for high-temperature applications?

A: Yes. The 24C02C-E/P provides the widest operating temperature range (-40°C ~ 125°C) among all substitutes. However, this part operates at reduced clock frequency (100 kHz versus 400 kHz). Selection should verify that reduced clock frequency is compatible with application timing requirements.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts (24AA02/P, 24C02C/P, 24C02C-E/P, 24C02C-I/P) are ROHS3 compliant. The original AT34C02-10PC is RoHS non-compliant, making substitution necessary for applications requiring regulatory compliance.

Q: Do substitute parts require PCB layout modifications?

A: No. All substitute parts maintain identical 8-DIP package configuration (0.300", 7.62mm) and through-hole mounting type. Pin-for-pin compatibility is maintained, eliminating PCB redesign requirements.

Q: Which substitute part offers the best overall performance?

A: Selection depends on application requirements. The 24C02C-I/P provides balanced performance with 400 kHz clock frequency, 900 ns access time, 1ms write cycle time, and extended temperature range (-40°C ~ 85°C). The 24AA02/P offers the widest voltage supply range (1.7V ~ 5.5V) for low-power applications. The 24C02C-E/P provides maximum temperature range (-40°C ~ 125°C) for industrial environments.