AT25080-10PI EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT25080-10PI is an 8Kbit Serial Peripheral Interface (SPI) EEPROM memory integrated circuit manufactured by Microchip Technology. This device operates at 3 MHz clock frequency with a supply voltage range of 4.5V to 5.5V and is housed in an 8-DIP through-hole package. The AT25080-10PI is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations. Substitute parts must maintain functional equivalence in memory capacity, interface protocol, package form factor, and operating temperature range while potentially offering improved specifications such as higher clock frequency or extended voltage compatibility.

Substiute Parts

AT25080-10PI

Microchip TechnologyIn Stock: 1097AT25080-10PI Datasheet

Current PartRFQ

25AA080A-I/P

Microchip TechnologyIn Stock: 148525AA080A-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the AT25080-10PI is determined by the following critical parameters:

Memory Specifications: The substitute part must provide 8Kbit capacity with 1K x 8 organization to ensure direct functional replacement without firmware modification.

Interface Protocol: SPI interface is mandatory for electrical and software compatibility with existing circuit implementations.

Package and Mounting: The 8-DIP through-hole package (0.300", 7.62mm) must be maintained to ensure mechanical compatibility with printed circuit board layouts and existing socket configurations.

Operating Temperature Range: The substitute must support the full -40°C to 85°C operating temperature range to maintain system reliability across specified environmental conditions.

Electrical Characteristics: Write cycle time of 5ms and operating temperature specifications must be met or exceeded. Enhanced specifications such as higher clock frequency or extended voltage supply range represent improvements that do not compromise compatibility.

The 25AA080A-I/P qualifies as a direct substitute based on these criteria, offering identical memory capacity, organization, interface, package, and operating temperature specifications while providing enhanced clock frequency (10 MHz versus 3 MHz) and extended voltage supply range (1.8V ~ 5.5V versus 4.5V ~ 5.5V).

Parameter Comparison

Engineering Selection Recommendations

The 25AA080A-I/P is the qualified substitute for the AT25080-10PI based on functional equivalence and enhanced specifications. Key selection factors include:

Product Status: The AT25080-10PI is obsolete, whereas the 25AA080A-I/P maintains active product status with verified availability. This ensures long-term supply chain reliability and continued manufacturer support.

Compliance and Certifications: The 25AA080A-I/P achieves ROHS3 compliance, whereas the AT25080-10PI is non-compliant. Both parts maintain REACH Unaffected status and EAR99 export classification. For applications requiring RoHS compliance, the 25AA080A-I/P is the appropriate selection.

Enhanced Electrical Performance: The 25AA080A-I/P operates at 10 MHz clock frequency compared to 3 MHz for the AT25080-10PI, providing improved data transfer rates without compromising compatibility. The extended voltage supply range (1.8V ~ 5.5V) offers greater flexibility in power supply design while maintaining full compatibility with 4.5V ~ 5.5V systems.

Verification Status: The 25AA080A-I/P is verified as programmable through DiGi-Electronics, confirming functional validation and compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 25AA080A-I/P directly replace the AT25080-10PI in existing circuit designs?

A: Yes. Both parts share identical memory capacity (8Kbit), organization (1K x 8), SPI interface, 8-DIP package dimensions, and operating temperature range (-40°C to 85°C). The 25AA080A-I/P operates within the AT25080-10PI supply voltage range (4.5V ~ 5.5V) and maintains the same 5ms write cycle time, ensuring direct functional compatibility without circuit modification.

Q: What are the advantages of using the 25AA080A-I/P over the AT25080-10PI?

A: The 25AA080A-I/P offers three primary advantages: (1) Active product status with ongoing manufacturer support versus obsolete status; (2) ROHS3 compliance for applications requiring environmental regulations adherence; (3) Enhanced clock frequency of 10 MHz enabling faster data transfer rates, and extended voltage supply range (1.8V ~ 5.5V) providing greater design flexibility.

Q: Are there any compatibility concerns when substituting the 25AA080A-I/P for the AT25080-10PI?

A: No compatibility concerns exist. The substitute part maintains identical package form factor, pinout, memory interface protocol, and operating specifications. The higher clock frequency and extended voltage range represent performance enhancements that do not introduce incompatibility.

Q: What is the significance of the 8-DIP package specification?

A: The 8-DIP (Dual In-line Package) with 0.300" (7.62mm) body width is a through-hole package type. Both the AT25080-10PI and 25AA080A-I/P use this identical package, ensuring mechanical compatibility with existing printed circuit board layouts, socket configurations, and assembly processes.

Q: How does the SPI interface ensure compatibility between these parts?

A: The Serial Peripheral Interface (SPI) is a standardized synchronous serial communication protocol. Both parts implement identical SPI interface specifications, ensuring that existing firmware, software drivers, and circuit implementations require no modification for the substitute part.

Q: What does "Memory Organization 1K x 8" mean in the context of substitution?

A: Memory organization 1K x 8 indicates 1024 addressable locations (1K) with 8 bits of data per location, totaling 8Kbit capacity. Both parts maintain this identical organization, ensuring address mapping and data structure compatibility at the system level.