Equivalent & Substitute Parts for 25LC080B-I/MS

Part Overview

The 25LC080B-I/MS is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 8-MSOP surface mount packaging. This device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical parameters and mechanical compatibility are maintained across the same memory category, allowing for design flexibility, supply chain optimization, and alternative sourcing options.

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 logic for the 25LC080B-I/MS is based on the following critical parameters:

Primary Compatibility Criteria:

Memory capacity: 8Kbit
Memory organization: 1K x 8
Interface protocol: SPI
Package type: 8-MSOP or 8-TSSOP (mechanically compatible)
Supply voltage range: Must encompass or match 2.5V ~ 5.5V
Operating temperature range: Must support -40°C ~ 85°C minimum
RoHS compliance: ROHS3 Compliant

Substitution Categories:

Category 1: Direct Pin-Compatible Substitutes (8-MSOP Package) Parts maintaining identical 8-MSOP packaging with matching or superior electrical specifications. These include 25LC080A-I/MS, 25LC080C-I/MS, 25LC080D-I/MS, and 25AA080C-I/MS. The 25AA080C-I/MS extends supply voltage range to 1.8V ~ 5.5V, providing broader operational flexibility.

Category 2: Package-Compatible Substitutes (8-TSSOP Package) Parts using 8-TSSOP packaging (0.173", 4.40mm Width) with SPI interface and 8Kbit capacity. These include AT25080B-XHL-B, AT25080B-XHL-T, CAT25080YI-GT3, CAV25080YE-GT3, and M95080-DFDW6TP. Clock frequency in this category ranges from unspecified to 20 MHz, all supporting the required 10 MHz operation.

Category 3: Automotive-Grade Alternatives BR25H080FVM-2CTR (Rohm Semiconductor, 8-MSOP) and CAV25080YE-GT3 (onsemi, 8-TSSOP) are AEC-Q100 qualified automotive-grade parts with extended temperature range (-40°C ~ 125°C), suitable for applications requiring automotive qualification.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Supply Voltage	Operating Temp	Package	Write Cycle Time	RoHS Status
25LC080B-I/MS	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	ROHS3
25AA080C-I/MS	Microchip	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	ROHS3
25LC080A-I/MS	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	ROHS3
25LC080C-I/MS	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	ROHS3
25LC080D-I/MS	Microchip	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	ROHS3
BR25H080FVM-2CTR	Rohm	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-MSOP	4ms	ROHS3
AT25080B-XHL-B	Microchip	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms	ROHS3
AT25080B-XHL-T	Microchip	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms	ROHS3
CAT25080YI-GT3	onsemi	8Kbit	Not Specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms	ROHS3
CAV25080YE-GT3	onsemi	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	5ms	ROHS3
M95080-DFDW6TP	STMicroelectronics	8Kbit	20 MHz	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms	ROHS3

Engineering Selection Recommendations

For Direct Replacement (8-MSOP Package): Select 25LC080A-I/MS, 25LC080C-I/MS, or 25LC080D-I/MS when maintaining identical 8-MSOP packaging is required. All three parts are Active status with ROHS3 compliance and match the original supply voltage range of 2.5V ~ 5.5V. The 25AA080C-I/MS offers extended low-voltage operation (1.8V minimum) while maintaining 8-MSOP compatibility.

For Automotive Applications: BR25H080FVM-2CTR (Rohm Semiconductor) is AEC-Q100 qualified with extended operating temperature to 125°C and 4ms write cycle time. This part maintains 8-MSOP packaging and 10 MHz clock frequency. CAV25080YE-GT3 (onsemi) provides automotive qualification in 8-TSSOP package with 20 MHz capability and 125°C temperature rating.

For Package Flexibility (8-TSSOP): AT25080B-XHL-T and CAV25080YE-GT3 are available in Cut Tape & Digi-Reel packaging. AT25080B-XHL-T supports 20 MHz operation with 1.8V ~ 5.5V supply range. M95080-DFDW6TP (STMicroelectronics) extends supply voltage to 1.7V minimum while maintaining 20 MHz operation.

For Low-Voltage Applications: 25AA080C-I/MS, AT25080B-XHL-B, AT25080B-XHL-T, CAT25080YI-GT3, and M95080-DFDW6TP all support 1.8V minimum supply voltage, enabling operation in low-power designs.

Frequently Asked Questions (FAQ)

Q: Can 25LC080B-I/MS be replaced with parts in 8-TSSOP package? A: Yes. 8-TSSOP package (0.173", 4.40mm Width) is mechanically compatible with 8-MSOP footprints in most PCB designs. Verify pinout compatibility and PCB layout constraints before substitution. AT25080B-XHL-T, CAV25080YE-GT3, and M95080-DFDW6TP are qualified 8-TSSOP alternatives.

Q: What is the difference between 25LC080 variants (A, B, C, D)? A: All variants maintain identical electrical specifications: 8Kbit capacity, 1K x 8 organization, SPI interface, 10 MHz clock, 5ms write cycle, and 2.5V ~ 5.5V supply range. Variants represent different product revisions or manufacturing dates. Selection among these parts is interchangeable for the specified application.

Q: Is 25AA080C-I/MS a direct substitute? A: Yes, with one advantage: extended supply voltage range to 1.8V minimum (versus 2.5V for 25LC080B-I/MS). This part is pin-compatible in 8-MSOP package and maintains all other electrical parameters. It is suitable for applications requiring lower supply voltage operation.

Q: Can I use 20 MHz parts as substitutes for 10 MHz requirement? A: Yes. Parts rated for 20 MHz operation (AT25080B-XHL-T, CAV25080YE-GT3, M95080-DFDW6TP) are backward compatible with 10 MHz system requirements. Higher clock frequency rating indicates superior performance capability. Verify package compatibility and PCB layout before substitution.

Q: What is the advantage of automotive-grade parts? A: BR25H080FVM-2CTR and CAV25080YE-GT3 are AEC-Q100 qualified with extended operating temperature range to 125°C (versus 85°C standard). These parts are required for automotive applications and provide enhanced reliability in high-temperature environments. BR25H080FVM-2CTR also offers 4ms write cycle time (faster than standard 5ms).

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original 25LC080B-I/MS specification. All parts are also REACH unaffected and classified under ECCN EAR99.

Q: What packaging options are available? A: 25LC080B-I/MS and most Microchip variants are supplied in Tube packaging. BR25H080FVM-2CTR is supplied in Tape & Reel. AT25080B-XHL-T is available in Cut Tape & Digi-Reel. Verify packaging requirements for your procurement and assembly process.

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