25LC080CT-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC080CT-E/ST is an 8Kbit Serial Peripheral Interface (SPI) EEPROM memory IC manufactured by Microchip Technology. This non-volatile memory device operates at 10 MHz clock frequency with a supply voltage range of 2.5V to 5.5V and is housed in an 8-TSSOP surface mount package. The part is currently in active product status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent memory capacity, interface protocol, package form factor, and electrical operating parameters align with application requirements.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Write Cycle Time	5ms
Package Type	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 25LC080CT-E/ST are grouped based on the following critical parameters that determine functional equivalence:

Core Substitution Criteria:

Memory capacity: 8Kbit (1K x 8 organization)
Interface protocol: SPI
Package: 8-TSSOP surface mount
Supply voltage compatibility: Minimum 2.5V support
Operating temperature range: Minimum -40°C to 85°C or higher
Non-volatile EEPROM technology

Parameter Variations Allowed in Substitutes:

Clock frequency: 5 MHz to 20 MHz (higher frequencies are backward compatible)
Write cycle time: 4ms to 5ms
Supply voltage upper limit: 5.5V or higher
Operating temperature upper limit: 85°C or 125°C
Packaging format: Tape & Reel or Cut Tape variants of 8-TSSOP

Parts meeting these criteria are electrically and mechanically compatible with the 25LC080CT-E/ST in standard applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Clock Frequency (MHz)	Voltage Supply (V)	Operating Temperature (°C)	Write Cycle Time (ms)	Packaging	Product Status
25LC080CT-E/ST	Microchip Technology	10	2.5 ~ 5.5	-40 ~ 125	5	Tape & Reel	Active
AT25080B-XHL-B	Microchip Technology	20	1.8 ~ 5.5	-40 ~ 85	5	Tube	Active
AT25080B-XHL-T	Microchip Technology	20	1.8 ~ 5.5	-40 ~ 85	5	Cut Tape & Digi-Reel	Active
M95080-WDW6TP	STMicroelectronics	20	2.5 ~ 5.5	-40 ~ 85	5	Cut Tape & Digi-Reel	Active
BR25H080FVT-2CE2	Rohm Semiconductor	10	2.5 ~ 5.5	-40 ~ 125	4	Tape & Reel	Active
CAT25080YI-GT3	onsemi	Not Specified	1.8 ~ 5.5	-40 ~ 85	5	Tape & Reel	Active
CAV25080YE-GT3	onsemi	20	2.5 ~ 5.5	-40 ~ 125	5	Tape & Reel	Active
M95080-DFDW6TP	STMicroelectronics	20	1.7 ~ 5.5	-40 ~ 85	5	Tape & Reel	Active
M95080-DRDW3TP/K	STMicroelectronics	20	1.8 ~ 5.5	-40 ~ 125	4	Tape & Reel	Active
M95080-RDW6TP	STMicroelectronics	20	1.8 ~ 5.5	-40 ~ 85	5	Tape & Reel	Active
R1EX25008ATA00I#S0	Renesas Electronics Corporation	5	1.8 ~ 5.5	-40 ~ 85	5	Tape & Reel	Active

Engineering Selection Recommendations

Direct Equivalents (Identical Operating Parameters): BR25H080FVT-2CE2 from Rohm Semiconductor matches the 25LC080CT-E/ST in clock frequency (10 MHz), supply voltage range (2.5V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). This part carries AEC-Q100 automotive qualification and is suitable for applications requiring automotive-grade components.

Higher Performance Substitutes (Enhanced Clock Frequency): AT25080B-XHL-T, CAV25080YE-GT3, M95080-WDW6TP, M95080-DFDW6TP, M95080-DRDW3TP/K, and M95080-RDW6TP operate at 20 MHz clock frequency, providing double the speed capability while maintaining 8Kbit capacity and SPI interface. These parts are backward compatible in applications where the original 10 MHz specification is not a limiting factor. CAV25080YE-GT3 and M95080-DRDW3TP/K extend the operating temperature range to -40°C ~ 125°C, matching the original part's thermal specification.

Lower Performance Substitute (Reduced Clock Frequency): R1EX25008ATA00I#S0 from Renesas operates at 5 MHz, suitable only for applications where lower clock frequency is acceptable or required.

Packaging Considerations: AT25080B-XHL-B is supplied in Tube packaging, differing from the standard Tape & Reel format of the main part. All other substitutes maintain Tape & Reel or Cut Tape & Digi-Reel packaging formats compatible with automated assembly processes.

Compliance Status: All listed parts maintain ROHS3 compliance and active product status. BR25H080FVT-2CE2, CAV25080YE-GT3, and M95080-DRDW3TP/K carry AEC-Q100 automotive qualification for applications requiring automotive-grade reliability.

Frequently Asked Questions (FAQ)

Q: Can AT25080B-XHL-T replace 25LC080CT-E/ST in all applications? A: AT25080B-XHL-T is electrically compatible as a substitute. It operates at 20 MHz (versus 10 MHz) and supports the same 8Kbit SPI EEPROM interface in 8-TSSOP packaging. The operating temperature range is -40°C ~ 85°C, which is narrower than the original part's -40°C ~ 125°C. Verify application temperature requirements before substitution.

Q: What is the difference between BR25H080FVT-2CE2 and the main part? A: BR25H080FVT-2CE2 is a direct functional equivalent with identical clock frequency (10 MHz), supply voltage (2.5V ~ 5.5V), and operating temperature range (-40°C ~ 125°C). The primary difference is manufacturer (Rohm Semiconductor versus Microchip Technology) and automotive qualification (AEC-Q100). Write cycle time is 4ms versus 5ms, which is a performance advantage.

Q: Are M95080 series parts compatible with 25LC080CT-E/ST? A: M95080 series parts (M95080-WDW6TP, M95080-DFDW6TP, M95080-DRDW3TP/K, M95080-RDW6TP) are compatible substitutes. All maintain 8Kbit capacity and SPI interface in 8-TSSOP packaging. Most operate at 20 MHz with 5ms write cycle time. M95080-DRDW3TP/K offers 4ms write cycle time and -40°C ~ 125°C operating range, matching the original thermal specification.

Q: What does packaging format (Tape & Reel versus Cut Tape) mean for component selection? A: Tape & Reel and Cut Tape & Digi-Reel are different supply formats for surface mount components. Tape & Reel is continuous reel format for high-volume automated assembly. Cut Tape & Digi-Reel is pre-cut tape on a reel for smaller quantities or mixed component orders. Both formats use identical 8-TSSOP package geometry and are mechanically compatible with standard pick-and-place equipment.

Q: Can R1EX25008ATA00I#S0 be used as a direct replacement? A: R1EX25008ATA00I#S0 is functionally compatible but operates at 5 MHz clock frequency, half the speed of the original 10 MHz part. Use this substitute only in applications where lower clock frequency is acceptable or where the reduced speed does not impact system performance.

Q: Which substitute offers the best thermal performance? A: BR25H080FVT-2CE2, CAV25080YE-GT3, and M95080-DRDW3TP/K all support the full -40°C ~ 125°C operating temperature range of the original part. BR25H080FVT-2CE2 and CAV25080YE-GT3 maintain 10 MHz and 20 MHz clock frequencies respectively, while M95080-DRDW3TP/K operates at 20 MHz with 4ms write cycle time.

Q: Are all substitutes ROHS3 compliant? A: All listed substitute parts maintain ROHS3 compliance status, matching the environmental compliance of the original 25LC080CT-E/ST.

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