25LC080BT-I/MS EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC080BT-I/MS is an 8Kbit SPI EEPROM memory IC manufactured by Microchip Technology, supplied in 8-MSOP packaging via Tape & Reel. This non-volatile memory device operates at 10 MHz clock frequency with a 5ms write cycle time and supports supply voltages from 2.5V to 5.5V across an operating temperature range of -40°C to 85°C. The part is Active status and RoHS3 compliant. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package compatibility, and electrical specifications to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 25LC080BT-I/MS is determined by the following critical parameters: 8Kbit memory capacity, SPI interface protocol, 1K x 8 memory organization, and surface mount packaging in 8-pin configurations. Substitute parts must maintain compatibility with these core specifications. Secondary considerations include clock frequency (10 MHz or higher), supply voltage range (minimum 2.5V support), and operating temperature range. Package variants (8-MSOP versus 8-TSSOP) are mechanically compatible within the same footprint class. Voltage supply range compatibility is verified: parts supporting 2.5V ~ 5.5V are direct substitutes; parts with 1.8V ~ 5.5V range are compatible when the application circuit operates above 2.5V.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency (MHz)	Voltage Supply (V)	Operating Temp (°C)	Package	Packaging Type
25LC080BT-I/MS	Microchip Technology	8Kbit	10	2.5 ~ 5.5	-40 ~ 85	8-MSOP	Tape & Reel
25AA080AT-I/MS	Microchip Technology	8Kbit	10	1.8 ~ 5.5	-40 ~ 85	8-MSOP	Cut Tape
25AA080CT-I/MS	Microchip Technology	8Kbit	10	1.8 ~ 5.5	-40 ~ 85	8-MSOP	Cut Tape & Digi-Reel
25LC080AT-E/MS	Microchip Technology	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	8-MSOP	Tape & Reel
AT25080B-XHL-B	Microchip Technology	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	8-TSSOP	Tube
AT25080B-XHL-T	Microchip Technology	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	8-TSSOP	Cut Tape & Digi-Reel
BR25H080FVM-2CTR	Rohm Semiconductor	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	8-MSOP	Tape & Reel
CAT25080YI-GT3	onsemi	8Kbit	Not Specified	1.8 ~ 5.5	-40 ~ 85	8-TSSOP	Tape & Reel
CAV25080YE-GT3	onsemi	8Kbit	20	2.5 ~ 5.5	-40 ~ 125	8-TSSOP	Tape & Reel
M95080-DFDW6TP	STMicroelectronics	8Kbit	20	1.7 ~ 5.5	-40 ~ 85	8-TSSOP	Tape & Reel
M95080-RDW6TP	STMicroelectronics	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	8-TSSOP	Tape & Reel

Engineering Selection Recommendations

Direct Substitutes (Same Package, Same Voltage Range): 25AA080AT-I/MS and 25AA080CT-I/MS are Microchip Technology parts with identical 8Kbit SPI EEPROM architecture in 8-MSOP packaging. Both support the 2.5V minimum supply requirement and maintain -40°C to 85°C operating range. These parts are Active status and RoHS3 compliant. Selection between Cut Tape and Tape & Reel packaging depends on procurement and assembly requirements.

Extended Temperature Substitute: 25LC080AT-E/MS extends the operating temperature range to -40°C to 125°C while maintaining 2.5V ~ 5.5V supply compatibility and 8-MSOP packaging. This part is suitable for applications requiring higher temperature operation and is Active status with verified DiGi-Electronics programmability.

Higher Clock Frequency Substitutes: AT25080B-XHL-B and AT25080B-XHL-T operate at 20 MHz clock frequency, doubling the speed of the main part. Both use 8-TSSOP packaging (mechanically compatible footprint) and support 1.8V ~ 5.5V supply range. These parts are Active status but not verified for DiGi-Electronics programmability.

Automotive-Grade Alternatives: BR25H080FVM-2CTR (Rohm Semiconductor) and CAV25080YE-GT3 (onsemi) are AEC-Q100 qualified automotive-grade parts. BR25H080FVM-2CTR maintains 10 MHz operation in 8-MSOP packaging with -40°C to 125°C range. CAV25080YE-GT3 operates at 20 MHz in 8-TSSOP packaging with extended temperature range. Both are Active status and RoHS3 compliant.

Multi-Source Alternatives: M95080-DFDW6TP and M95080-RDW6TP (STMicroelectronics) provide 20 MHz SPI EEPROM in 8-TSSOP packaging. M95080-DFDW6TP supports 1.7V ~ 5.5V supply range; M95080-RDW6TP supports 1.8V ~ 5.5V. Both are Active status with high inventory availability.

onsemi CAT25080YI-GT3: This part provides 8Kbit SPI EEPROM in 8-TSSOP packaging with 1.8V ~ 5.5V supply range and -40°C to 85°C operating temperature. Clock frequency is not specified in available data. Active status with unlimited moisture sensitivity level.

Frequently Asked Questions (FAQ)

Q: Can I use 25AA080AT-I/MS as a direct replacement for 25LC080BT-I/MS? A: Yes. Both parts are 8Kbit SPI EEPROM with identical memory organization (1K x 8), 10 MHz clock frequency, and 8-MSOP packaging. The 25AA080AT-I/MS supports 1.8V ~ 5.5V supply range, which is compatible when your circuit operates at or above 2.5V. Packaging format differs (Cut Tape versus Tape & Reel), but the component itself is functionally equivalent.

Q: What is the difference between 8-MSOP and 8-TSSOP packages? A: Both are 8-pin surface mount packages with different physical dimensions. 8-MSOP has 0.118" width (3.00mm); 8-TSSOP has 0.173" width (4.40mm). They are not mechanically interchangeable on the same PCB footprint. Verify your circuit board design supports the specific package before substitution.

Q: Can I use AT25080B-XHL-T (20 MHz) instead of 25LC080BT-I/MS (10 MHz)? A: Yes, from a functional standpoint. The AT25080B-XHL-T provides higher clock frequency (20 MHz), which is backward compatible with 10 MHz applications. However, it uses 8-TSSOP packaging instead of 8-MSOP, so PCB footprint compatibility must be verified. Supply voltage range is 1.8V ~ 5.5V, compatible when operating above 2.5V.

Q: Are automotive-grade parts (BR25H080FVM-2CTR, CAV25080YE-GT3) required for my application? A: Automotive-grade parts carry AEC-Q100 qualification and extended temperature ratings. Use these only if your application requires automotive-grade reliability or operates in the extended temperature range (-40°C to 125°C). For standard industrial or consumer applications within -40°C to 85°C, standard-grade parts are sufficient.

Q: What is the minimum supply voltage I must support to use 25AA080AT-I/MS? A: The 25AA080AT-I/MS supports 1.8V ~ 5.5V supply range. If your circuit design operates at 2.5V or higher, this part is fully compatible. If your circuit requires operation below 2.5V, use only parts explicitly rated for lower voltage (such as M95080-DFDW6TP at 1.7V minimum).

Q: Which substitute part has the highest inventory availability? A: M95080-RDW6TP (STMicroelectronics) has 33,400 pieces in stock, the highest among all listed substitutes. This part operates at 20 MHz in 8-TSSOP packaging with 1.8V ~ 5.5V supply range and -40°C to 85°C operating temperature.

Q: Can I mix packaging types (Tape & Reel, Cut Tape, Tube) in the same production run? A: Packaging format affects procurement, handling, and assembly processes but does not affect component functionality. Parts from different packaging formats with identical electrical specifications can be used interchangeably in the circuit design. Verify your assembly equipment and procurement procedures support the selected packaging format.

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