AT25080-10PC EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT25080-10PC is an 8Kbit Serial Peripheral Interface (SPI) EEPROM memory IC manufactured by Microchip Technology, housed in an 8-DIP through-hole package. This device operates at 3 MHz clock frequency with a 5ms write cycle time and requires a 4.5V to 5.5V supply voltage. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system support and production continuity. Equivalent parts must maintain identical memory capacity, interface protocol, package form factor, and operational temperature range to ensure direct functional replacement without circuit redesign.

Substiute Parts

AT25080-10PC

Microchip TechnologyIn Stock: 1051AT25080-10PC Datasheet

Current PartRFQ

25AA080/P

Microchip TechnologyIn Stock: 112625AA080/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT25080-10PC is determined by strict equivalence across the following critical parameters:

• Memory capacity: 8Kbit (1K x 8 organization)
• Interface protocol: SPI serial communication
• Package configuration: 8-DIP through-hole form factor
• Write cycle time: 5ms maximum
• Operating temperature range: 0°C to 70°C minimum

The 25AA080/P qualifies as a direct substitute based on matching memory size, organization, SPI interface, package type, and operating temperature range. While the 25AA080/P operates at a lower maximum clock frequency (1 MHz versus 3 MHz) and supports a wider supply voltage range (1.8V to 5.5V), these characteristics do not prevent substitution in applications designed for the AT25080-10PC. The lower clock frequency represents a conservative operational parameter, and the extended voltage tolerance provides additional design flexibility.

Parameter Comparison

Engineering Selection Recommendations

The 25AA080/P is the qualified substitute for the AT25080-10PC based on functional equivalence and component availability. The AT25080-10PC is classified as obsolete, whereas the 25AA080/P maintains active product status with verified programmability and current inventory availability. The 25AA080/P achieves ROHS3 compliance, meeting modern environmental and regulatory requirements, whereas the AT25080-10PC does not comply with RoHS directives. Both components share identical REACH status (REACH Unaffected) and ECCN classification (EAR99).

For applications requiring the AT25080-10PC, the 25AA080/P provides direct functional replacement without circuit modification. The lower maximum clock frequency of the 25AA080/P does not compromise compatibility in systems designed for the AT25080-10PC's 3 MHz specification, as the substitute operates within the same SPI protocol and timing parameters. The extended supply voltage range of the 25AA080/P (1.8V to 5.5V) provides additional operational flexibility compared to the original part's 4.5V to 5.5V requirement.

Frequently Asked Questions (FAQ)

Q: Can the 25AA080/P directly replace the AT25080-10PC without PCB modifications?

A: Yes. Both components use identical 8-DIP through-hole packaging with matching pin configurations, memory capacity, and SPI interface protocol. No circuit redesign or board layout changes are required.

Q: What is the significance of the different clock frequencies (3 MHz vs. 1 MHz)?

A: The AT25080-10PC operates at a maximum of 3 MHz, while the 25AA080/P operates at a maximum of 1 MHz. This difference does not prevent substitution. The 25AA080/P will function correctly in any application designed for the AT25080-10PC, as it meets or exceeds all timing requirements for SPI communication and write cycle operations.

Q: Does the wider supply voltage range of the 25AA080/P affect compatibility?

A: No. The 25AA080/P supports 1.8V to 5.5V operation, which encompasses the AT25080-10PC's 4.5V to 5.5V range. This extended tolerance provides additional design margin and does not introduce compatibility issues.

Q: Are there any compliance differences between these parts?

A: The 25AA080/P is ROHS3 compliant, while the AT25080-10PC is not RoHS compliant. For applications subject to RoHS regulations or environmental compliance requirements, the 25AA080/P is the preferred choice. Both parts share identical REACH and ECCN classifications.

Q: What is the product status difference, and why does it matter?

A: The AT25080-10PC is classified as obsolete, indicating discontinued manufacturing and limited availability. The 25AA080/P maintains active product status with current production and verified inventory. For new designs or ongoing production support, the 25AA080/P ensures long-term component availability.

Q: Are there additional substitute options beyond the 25AA080/P?

A: The 25AA080/P documentation references additional variants (25AA080A-I/P and 25AA080B-I/P) within the same product family. Verification of these alternatives against specific application requirements is necessary before selection.