Equivalent & Substitute Parts for 25LC080B-E/SN

Part Overview

The 25LC080B-E/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 non-volatile memory device operates across a supply voltage range of 2.5V to 5.5V and temperature range of -40°C to 125°C, with a 5ms write cycle time. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional compatibility in circuit applications.

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 ~ 125°C
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 25LC080B-E/SN are grouped based on the following substitution criteria:

Primary Substitution Parameters:

Memory capacity: 8Kbit (1K x 8 organization)
Interface protocol: SPI
Package type: 8-SOIC or equivalent 8-pin SOP variants
Supply voltage compatibility: Minimum 2.5V support
Operating temperature range: Minimum -40°C to 125°C coverage

Substitution Categories:

Category 1: Direct Microchip Technology Equivalents — Parts 25LC080A-E/SN, 25LC080C-E/SN, and 25LC080D-E/SN maintain identical electrical specifications and 8-SOIC packaging. These variants differ only in moisture sensitivity level (MSL) ratings, with 25LC080A-E/SN offering MSL 1 (Unlimited) and 25LC080C-E/SN and 25LC080D-E/SN rated at MSL 3 (168 Hours).

Category 2: Enhanced Clock Frequency Variants — Parts AT25080B-SSHL-B and AT25080B-SSHL-T operate at 20 MHz clock frequency with expanded voltage range (1.8V ~ 5.5V) but operate at reduced maximum temperature (-40°C to 85°C). These provide higher speed capability while maintaining 8-SOIC packaging and 8Kbit capacity.

Category 3: Automotive-Grade Alternatives — Parts BR25H080F-2CE2 and BR25H080FJ-2CE2 from Rohm Semiconductor feature AEC-Q100 automotive qualification with 10 MHz operation. BR25H080F-2CE2 uses 8-SOP packaging (0.173", 4.40mm width), while BR25H080FJ-2CE2 uses 8-SOP-J packaging (0.154", 3.90mm width) matching the original footprint.

Category 4: Legacy and Reduced-Speed Options — Part BR25L080F-WE2 operates at 5 MHz with extended voltage range (1.8V ~ 5.5V) but is marked "Not For New Designs" and operates at reduced temperature maximum (-40°C to 85°C).

Category 5: Alternative Manufacturer Options — Part CAT25080VI-GT3 from onsemi provides 8Kbit SPI EEPROM in 8-SOIC packaging with voltage range 1.8V ~ 5.5V and operating temperature -40°C to 85°C. Part M95080-DRMN3TP/K from STMicroelectronics offers 20 MHz operation with AEC-Q100 automotive qualification, 1.8V ~ 5.5V supply range, and -40°C to 125°C temperature coverage in 8-SOIC packaging.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency (MHz)	Voltage Supply (V)	Operating Temp (°C)	Write Cycle (ms)	Package	Product Status
25LC080B-E/SN	Microchip	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	5	8-SOIC	Active
25LC080A-E/SN	Microchip	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	5	8-SOIC	Active
25LC080C-E/SN	Microchip	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	5	8-SOIC	Active
25LC080D-E/SN	Microchip	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	5	8-SOIC	Active
AT25080B-SSHL-B	Microchip	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	5	8-SOIC	Active
AT25080B-SSHL-T	Microchip	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	5	8-SOIC	Active
BR25H080F-2CE2	Rohm	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	4	8-SOP	Active
BR25H080FJ-2CE2	Rohm	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	4	8-SOP-J	Active
BR25L080F-WE2	Rohm	8Kbit	5	1.8 ~ 5.5	-40 ~ 85	5	8-SOP	Not For New Designs
CAT25080VI-GT3	onsemi	8Kbit	Not Specified	1.8 ~ 5.5	-40 ~ 85	5	8-SOIC	Active
M95080-DRMN3TP/K	STMicroelectronics	8Kbit	20	1.8 ~ 5.5	-40 ~ 125	4	8-SOIC	Active

Engineering Selection Recommendations

For Direct Replacement with Identical Specifications: Select 25LC080A-E/SN, 25LC080C-E/SN, or 25LC080D-E/SN when exact electrical and thermal performance matching is required. All three maintain 10 MHz operation, 2.5V to 5.5V supply range, and -40°C to 125°C temperature coverage. Selection between these variants depends on moisture sensitivity requirements for storage and handling conditions.

For Higher Clock Frequency Applications: AT25080B-SSHL-B and AT25080B-SSHL-T support 20 MHz operation with extended lower voltage limit (1.8V minimum). These are suitable for applications requiring faster SPI communication. Note that maximum operating temperature is reduced to 85°C; verify thermal requirements before selection.

For Automotive Applications: BR25H080F-2CE2, BR25H080FJ-2CE2, and M95080-DRMN3TP/K carry AEC-Q100 automotive qualification. BR25H080FJ-2CE2 maintains the original 8-SOIC footprint (0.154", 3.90mm width) while BR25H080F-2CE2 uses slightly wider 8-SOP packaging (0.173", 4.40mm width). M95080-DRMN3TP/K offers 20 MHz operation with full -40°C to 125°C temperature range in standard 8-SOIC packaging.

For Extended Voltage Range: CAT25080VI-GT3 and M95080-DRMN3TP/K support operation down to 1.8V supply voltage, enabling use in low-power applications. Both maintain 8Kbit capacity and SPI interface.

Parts to Avoid for New Designs: BR25L080F-WE2 is marked "Not For New Designs" and should not be selected for new applications.

Frequently Asked Questions (FAQ)

Q: Can 25LC080A-E/SN, 25LC080C-E/SN, and 25LC080D-E/SN be used interchangeably with 25LC080B-E/SN?

A: Yes. All three variants maintain identical electrical specifications including 10 MHz clock frequency, 2.5V to 5.5V supply range, -40°C to 125°C operating temperature, and 8-SOIC packaging. The differences are limited to moisture sensitivity level (MSL) ratings, which affect storage and handling requirements but not functional performance.

Q: What is the difference between 8-SOIC and 8-SOP packaging?

A: Both are 8-pin surface mount packages with similar pin configurations. The primary difference is package width: 8-SOIC is 0.154" (3.90mm) wide, while 8-SOP is typically 0.173" (4.40mm) wide. BR25H080FJ-2CE2 uses 8-SOP-J packaging matching the original 0.154" width. Verify PCB footprint compatibility before substitution.

Q: Can AT25080B-SSHL-B replace 25LC080B-E/SN in all applications?

A: AT25080B-SSHL-B provides higher clock frequency (20 MHz) and lower minimum voltage (1.8V), making it suitable for faster SPI communication and lower-power designs. However, maximum operating temperature is limited to 85°C compared to 125°C for the original part. Verify thermal requirements before substitution.

Q: Are automotive-grade parts (BR25H080FJ-2CE2, M95080-DRMN3TP/K) required for non-automotive applications?

A: No. Automotive-grade parts with AEC-Q100 qualification are not required for non-automotive applications. They may be selected if additional reliability assurance or extended temperature range (-40°C to 125°C) is desired, but standard industrial-grade parts are sufficient for typical applications.

Q: What does "Not For New Designs" mean for BR25L080F-WE2?

A: This designation indicates the part is in legacy status and should not be selected for new product development. While existing inventory may be available, Microchip and other manufacturers recommend using active production alternatives for new designs to ensure long-term supply availability and support.

Q: Does CAT25080VI-GT3 have a specified clock frequency?

A: Clock frequency is not specified in the provided data for CAT25080VI-GT3. Verify the device datasheet for clock frequency specifications before selecting this part for applications with specific timing requirements.

Q: Can parts with 1.8V minimum supply voltage replace the original 2.5V minimum part?

A: Yes, if your application operates at 2.5V or higher. Parts with 1.8V minimum voltage (AT25080B-SSHL-B, AT25080B-SSHL-T, BR25L080F-WE2, CAT25080VI-GT3, M95080-DRMN3TP/K) are backward compatible with 2.5V to 5.5V supply designs. However, if your application requires operation below 2.5V, only these lower-voltage parts are suitable.

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