Equivalent & Substitute Parts for 25LC080BT-I/SN

Part Overview

The 25LC080BT-I/SN is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 8-SOIC surface mount packaging. This device operates across a supply voltage range of 2.5V to 5.5V and maintains functionality from -40°C to 85°C. The part is currently in active production status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching core electrical specifications: 8Kbit memory capacity, 1K x 8 organization, SPI interface, and compatible packaging footprints. Substitutes may vary in clock frequency, supply voltage range, operating temperature limits, and packaging format while maintaining functional compatibility in most applications.

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 ~ 85°C
Write Cycle Time	5ms
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following core parameters:

Primary Matching Criteria:

Memory capacity: 8Kbit
Memory organization: 1K x 8
Interface protocol: SPI
Package footprint: 8-SOIC or compatible 8-pin SOP variants
Mounting type: Surface mount

Secondary Variation Parameters (allowable differences):

Clock frequency: 5 MHz to 20 MHz (backward compatible if equal or higher)
Supply voltage range: 1.8V minimum acceptable if application operates within 2.5V ~ 5.5V window
Operating temperature: Extended range acceptable for industrial/automotive applications
Write cycle time: 4ms to 5ms acceptable
Packaging format: Tape & Reel, Tube, or Cut Tape variants of same footprint

Substitute parts are grouped into three categories: Microchip 25LC080 series variants, Microchip AT25080 series variants, and Rohm Semiconductor BR25H080/BR25L080 series alternatives.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Supply Voltage	Operating Temp	Write Cycle	Package	Status
25LC080BT-I/SN	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC TR	Active
25LC080B-I/SN	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC Tube	Active
25AA080AT-I/SN	Microchip	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC TR	Active
25LC080AT-I/SN	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC TR	Active
25LC080CT-I/SN	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC TR	Active
25LC080DT-E/SN	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-SOIC CT/Digi-Reel	Active
AT25080B-SSHL-B	Microchip	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC Tube	Active
AT25080B-SSHL-T	Microchip	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC CT/Digi-Reel	Active
BR25H080F-2CE2	Rohm	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-SOP TR	Active
BR25H080FJ-2CE2	Rohm	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-SOP-J TR	Active
BR25L080F-WE2	Rohm	8Kbit	5 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOP TR	Not For New Designs

Engineering Selection Recommendations

Microchip 25LC080 Series (Direct Equivalents)

The 25LC080B-I/SN, 25LC080AT-I/SN, 25LC080CT-I/SN, and 25LC080DT-E/SN maintain identical electrical specifications to the 25LC080BT-I/SN with variations in packaging format and temperature range. Selection between these variants depends on procurement requirements: Tube packaging for 25LC080B-I/SN, standard Tape & Reel for 25LC080AT-I/SN and 25LC080CT-I/SN, and extended temperature operation (-40°C to 125°C) for 25LC080DT-E/SN. All variants are ROHS3 compliant and active in production.

Microchip 25AA080 Series (Extended Supply Voltage)

The 25AA080AT-I/SN operates at a lower minimum supply voltage of 1.8V compared to the 2.5V minimum of the 25LC080BT-I/SN. This variant is suitable for applications requiring operation in low-power or battery-backed environments while maintaining the same 10 MHz clock frequency and 8-SOIC footprint. Verification status differs; 25AA080AT-I/SN is verified for DiGi-Electronics programmability.

Microchip AT25080B Series (Higher Clock Frequency)

The AT25080B-SSHL-B and AT25080B-SSHL-T variants operate at 20 MHz, providing double the clock frequency of the main part. These are suitable for applications requiring faster SPI communication. Both support extended supply voltage range (1.8V ~ 5.5V) and maintain 8-SOIC footprint compatibility. AT25080B-SSHL-T offers superior inventory availability (101,475 units) and unlimited moisture sensitivity rating.

Rohm Semiconductor BR25H080 Series (Automotive Grade)

The BR25H080F-2CE2 and BR25H080FJ-2CE2 are automotive-qualified alternatives (AEC-Q100) with extended operating temperature to 125°C. These parts feature slightly faster write cycle time (4ms vs 5ms) and are available in 8-SOP and 8-SOP-J packages. Selection between these variants depends on specific package footprint requirements. Both are ROHS3 compliant and active in production.

Rohm Semiconductor BR25L080F-WE2 (Legacy Alternative)

The BR25L080F-WE2 operates at 5 MHz with extended supply voltage range (1.8V ~ 5.5V). This part is marked as "Not For New Designs" and should be considered only for legacy system maintenance or replacement scenarios where existing designs mandate this specific part number.

Frequently Asked Questions (FAQ)

Q: Can I substitute 25LC080BT-I/SN with 25LC080B-I/SN?

A: Yes. Both parts share identical electrical specifications (8Kbit, 10 MHz SPI, 2.5V ~ 5.5V, -40°C ~ 85°C). The difference is packaging format: 25LC080BT-I/SN is supplied in Tape & Reel while 25LC080B-I/SN is supplied in Tube. Verify your assembly equipment compatibility with the packaging format before substitution.

Q: What is the difference between 25LC080 and 25AA080 series?

A: The primary difference is minimum supply voltage. 25LC080 series requires 2.5V minimum, while 25AA080 series operates down to 1.8V. Both maintain 8Kbit capacity and 10 MHz SPI interface. Select 25AA080 for low-voltage applications; use 25LC080 for standard 3.3V or 5V systems.

Q: Can I use AT25080B-SSHL-T instead of 25LC080BT-I/SN?

A: Yes, with considerations. AT25080B-SSHL-T operates at 20 MHz (faster than 10 MHz) and supports 1.8V minimum supply voltage. It is backward compatible in applications designed for 10 MHz operation. Verify your application does not depend on the slower 10 MHz specification. Both use 8-SOIC footprint and are ROHS3 compliant.

Q: Are Rohm BR25H080 parts compatible with Microchip 25LC080?

A: Yes, functionally compatible. Both are 8Kbit SPI EEPROM with 8-pin surface mount packages. Key differences: BR25H080 uses 8-SOP package (0.173" width) versus 25LC080's 8-SOIC (0.154" width), and BR25H080 features automotive qualification (AEC-Q100) with extended temperature to 125°C. Verify PCB footprint compatibility before substitution.

Q: Why would I choose BR25L080F-WE2 over other alternatives?

A: BR25L080F-WE2 is marked "Not For New Designs" and should only be selected for legacy system replacement where existing designs specifically require this part. For new designs, select from active production alternatives such as 25LC080AT-I/SN, AT25080B-SSHL-T, or BR25H080FJ-2CE2.

Q: What packaging formats are available for 25LC080 equivalents?

A: Available formats include Tape & Reel (TR), Tube, and Cut Tape (CT) with Digi-Reel. Tape & Reel is standard for high-volume production; Tube is suitable for lower-volume or manual assembly; Cut Tape with Digi-Reel offers flexibility for mixed-volume requirements. Verify your assembly process compatibility before selecting packaging format.

Q: Do all substitutes maintain ROHS3 compliance?

A: Yes. All listed substitute parts are ROHS3 compliant. Moisture sensitivity levels vary: most parts are MSL 1 (Unlimited), while AT25080B-SSHL-B is MSL 3 (168 Hours). Verify storage and handling requirements for MSL 3 parts before procurement.

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