Microchip 25AA080/P EEPROM Memory IC - Equivalent & Substitute Parts

Part Overview

The Microchip 25AA080/P is an 8Kbit Serial Peripheral Interface (SPI) EEPROM memory IC in 8-DIP packaging. This non-volatile memory device operates at 1 MHz clock frequency with a 1K x 8 memory organization and supports supply voltages from 1.8V to 5.5V. The component is actively produced, RoHS3 compliant, and widely used in embedded systems requiring persistent data storage with SPI interface compatibility. Substitute parts are identified to address inventory availability, performance requirements, or extended operating temperature specifications.

Substiute Parts

25AA080/P

Microchip TechnologyIn Stock: 112625AA080/P Datasheet

Current PartRFQ

25AA080A-I/P

Microchip TechnologyIn Stock: 148525AA080A-I/P Datasheet

MFR RecommendedRFQ

25AA080B-I/P

Microchip TechnologyIn Stock: 138525AA080B-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 25AA080/P are qualified based on the following critical parameters that determine functional compatibility:

• Memory Capacity & Organization: Must maintain 8Kbit capacity with 1K x 8 organization
• Interface Protocol: Must support SPI interface for direct pin-level compatibility
• Package Type: Must use 8-DIP (0.300", 7.62mm) for mechanical and electrical socket compatibility
• Supply Voltage: Must support the 1.8V ~ 5.5V range
• Write Cycle Time: Must maintain 5ms specification
• Manufacturer: Microchip Technology (same product family)

The identified substitutes (25AA080A-I/P and 25AA080B-I/P) meet all core compatibility criteria. Differences in clock frequency (10 MHz vs. 1 MHz) and operating temperature range represent performance enhancements rather than compatibility restrictions, as higher-speed devices operate within the electrical constraints of the original specification.

Parameter Comparison

Engineering Selection Recommendations

All three parts (25AA080/P, 25AA080A-I/P, and 25AA080B-I/P) are active products from Microchip Technology with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for industrial and commercial applications.

The 25AA080A-I/P and 25AA080B-I/P substitutes provide enhanced performance specifications while maintaining full backward compatibility with the original 25AA080/P. The extended operating temperature range (-40°C ~ 85°C) and increased clock frequency (10 MHz) make these alternatives suitable for applications requiring wider environmental operating conditions or higher data transfer rates within the same 8-DIP package footprint.

Selection between 25AA080A-I/P and 25AA080B-I/P should be based on specific application requirements and inventory availability, as both devices share identical electrical and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can 25AA080A-I/P or 25AA080B-I/P be used as direct replacements for 25AA080/P?

A: Yes. Both substitute parts maintain identical memory capacity (8Kbit), organization (1K x 8), SPI interface, supply voltage range (1.8V ~ 5.5V), write cycle time (5ms), and 8-DIP package dimensions. The higher clock frequency (10 MHz) and extended temperature range are performance enhancements that do not affect backward compatibility.

Q: What is the difference between 25AA080A-I/P and 25AA080B-I/P?

A: Both parts share identical electrical specifications and performance characteristics. The designation difference reflects Microchip's internal product line segmentation. Selection between these two should be based on availability and application-specific requirements.

Q: Does the increased clock frequency (10 MHz) of substitute parts affect circuit design?

A: No. The 10 MHz clock frequency of 25AA080A-I/P and 25AA080B-I/P is backward compatible with systems designed for the 1 MHz 25AA080/P. The SPI interface, pin configuration, and electrical characteristics remain unchanged. Systems can operate these devices at lower clock frequencies if required.

Q: Are all three parts suitable for extended temperature applications?

A: The 25AA080/P operates from 0°C to 70°C. The 25AA080A-I/P and 25AA080B-I/P extend this range to -40°C to 85°C, making them suitable for industrial and automotive applications requiring wider temperature specifications.

Q: What packaging considerations apply to these parts?

A: All three parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging. No PCB layout or socket modifications are required when substituting between these devices.