Microchip Technology 25C080T/SN EEPROM 8Kbit SPI Memory IC Equivalent & Substitute Parts

Part Overview

The Microchip Technology 25C080T/SN is an 8Kbit EEPROM memory IC with SPI interface, operating at 3 MHz clock frequency in an 8-SOIC surface mount package. This part is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level. Substitute parts are identified based on matching memory capacity, interface protocol, package form factor, and electrical operating parameters. Alternative models may be required due to inventory availability, packaging format preferences, or extended operating temperature range requirements for specific applications.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	SPI
Clock Frequency	3 MHz
Write Cycle Time	5ms
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 25C080T/SN are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Memory Size: 8Kbit (mandatory match)
Memory Organization: 1K x 8 (mandatory match)
Memory Interface: SPI (mandatory match)
Package / Case: 8-SOIC form factor (mandatory match for PCB compatibility)
Mounting Type: Surface Mount (mandatory match)

Secondary Compatibility Parameters:

Clock Frequency: 3 MHz or higher (backward compatible)
Voltage Supply Range: Must encompass or exceed 4.5V ~ 5.5V
Write Cycle Time: 5ms or faster (backward compatible)
Operating Temperature: Extended ranges are backward compatible

Compliance Requirements:

RoHS3 Compliant status maintained across all substitutes
REACH Unaffected status maintained

Parts are organized into three categories: Direct packaging substitutes (same electrical specifications, different packaging), manufacturer-recommended upgrades (enhanced specifications), and cross-manufacturer alternatives (different manufacturers, equivalent specifications).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Package	Packaging Format	Inventory
25C080T/SN	Microchip Technology	8Kbit	3 MHz	4.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tape & Reel	952 Pcs
25C080/SN	Microchip Technology	8Kbit	3 MHz	4.5V ~ 5.5V	0°C ~ 70°C	8-SOIC	Tube	3789 Pcs
25AA080AT-I/SN	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	3794 Pcs
25LC080AT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	4015 Pcs
25LC080BT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	1455 Pcs
25LC080CT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tape & Reel	2937 Pcs
25LC080DT-E/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Cut Tape & Digi-Reel	2499 Pcs
AT25080B-SSHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Tube	3135 Pcs
AT25080B-SSHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Cut Tape & Digi-Reel	101475 Pcs
BR25H080F-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Tape & Reel	5814 Pcs
BR25H080FJ-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Tape & Reel	3111 Pcs

Engineering Selection Recommendations

Direct Substitution (Same Electrical Specifications, Different Packaging): The 25C080/SN in Tube packaging is a direct substitute for the 25C080T/SN, maintaining identical electrical parameters and clock frequency. Selection between these depends on packaging format requirements for assembly processes.

Microchip Technology Upgrades (Enhanced Performance): The 25AA080AT-I/SN, 25LC080AT-I/SN, 25LC080BT-I/SN, 25LC080CT-I/SN, and 25LC080DT-E/SN offer higher clock frequencies (10 MHz) and extended operating temperature ranges (-40°C ~ 85°C or -40°C ~ 125°C). These parts maintain ROHS3 compliance and are backward compatible with the 25C080T/SN in terms of memory capacity and interface protocol. The 25LC080DT-E/SN provides the widest operating temperature range (-40°C ~ 125°C).

High-Speed Microchip Technology Alternatives: The AT25080B-SSHL-B and AT25080B-SSHL-T operate at 20 MHz clock frequency with extended voltage supply range (1.8V ~ 5.5V) and operating temperature range (-40°C ~ 85°C). The AT25080B-SSHL-T offers significantly higher inventory (101,475 Pcs) and Cut Tape & Digi-Reel packaging. Both maintain ROHS3 compliance.

Cross-Manufacturer Alternatives (Rohm Semiconductor): The BR25H080F-2CE2 and BR25H080FJ-2CE2 from Rohm Semiconductor provide 8Kbit SPI EEPROM functionality with 10 MHz clock frequency, extended operating temperature range (-40°C ~ 125°C), and AEC-Q100 automotive qualification. These parts maintain ROHS3 compliance and are suitable for automotive-grade applications.

Product Status Consideration: All substitute parts maintain Active product status and ROHS3 compliance, ensuring long-term availability and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can I use 25LC080AT-I/SN as a direct replacement for 25C080T/SN? A: Yes. The 25LC080AT-I/SN is functionally compatible as it maintains the same 8Kbit memory capacity, 1K x 8 organization, SPI interface, and 8-SOIC package. The higher clock frequency (10 MHz vs. 3 MHz) and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C) are backward compatible. The voltage supply range (2.5V ~ 5.5V) encompasses the original specification (4.5V ~ 5.5V).

Q: What is the difference between 25C080/SN and 25C080T/SN? A: Both parts have identical electrical specifications and clock frequency (3 MHz). The primary difference is packaging format: 25C080T/SN is supplied in Tape & Reel format, while 25C080/SN is supplied in Tube format. Selection depends on assembly line requirements.

Q: Are Rohm Semiconductor BR25H080F-2CE2 and BR25H080FJ-2CE2 suitable replacements? A: Yes, both Rohm parts are compatible substitutes with matching 8Kbit memory, SPI interface, and 8-SOIC package. They offer 10 MHz clock frequency and extended operating temperature range (-40°C ~ 125°C). The BR25H080FJ-2CE2 uses 8-SOP-J package variant while BR25H080F-2CE2 uses standard 8-SOP package. Both include AEC-Q100 automotive qualification.

Q: Which substitute offers the highest clock frequency? A: The AT25080B-SSHL-B and AT25080B-SSHL-T operate at 20 MHz, the highest among all listed substitutes. Both maintain 8Kbit capacity and 8-SOIC package compatibility.

Q: What is the advantage of 25LC080DT-E/SN over other 25LC080 variants? A: The 25LC080DT-E/SN provides the widest operating temperature range (-40°C ~ 125°C) compared to other 25LC080 variants (-40°C ~ 85°C), making it suitable for high-temperature applications. It maintains 10 MHz clock frequency and 8Kbit capacity.

Q: Can I use AT25080B-SSHL-T in place of 25C080T/SN? A: Yes. The AT25080B-SSHL-T is compatible with matching 8Kbit memory, SPI interface, and 8-SOIC package. It offers enhanced specifications including 20 MHz clock frequency, extended voltage range (1.8V ~ 5.5V), and extended operating temperature (-40°C ~ 85°C). High inventory availability (101,475 Pcs) supports supply chain continuity.

Q: Are all substitute parts RoHS3 compliant? A: Yes, all listed substitute parts maintain ROHS3 compliance and REACH Unaffected status, ensuring regulatory compliance across all alternatives.

Q: What packaging formats are available for substitutes? A: Substitute parts are available in Tape & Reel (TR), Tube, and Cut Tape (CT) & Digi-Reel formats. Selection depends on assembly process requirements and volume handling procedures.

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