Equivalent & Substitute Parts for 25LC080T-I/SN

Part Overview

The 25LC080T-I/SN is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 2 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 Active status and ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, interface type, and package specifications are maintained while accommodating variations in clock frequency, voltage range, temperature rating, and packaging format.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	SPI
Clock Frequency	2 MHz
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution validity for the 25LC080T-I/SN is determined by the following critical parameters:

Core Compatibility Requirements:

Memory Size: 8Kbit (fixed)
Memory Organization: 1K x 8 (fixed)
Memory Interface: SPI (fixed)
Package Type: 8-SOIC with 0.154" width and 3.90mm width (fixed)
Mounting Type: Surface Mount (fixed)

Variable Parameters Allowing Substitution:

Clock Frequency: May be equal to or greater than 2 MHz
Voltage Supply Range: Must encompass or be compatible with 2.5V ~ 5.5V
Operating Temperature: May extend beyond -40°C ~ 85°C
Packaging Format: Cut Tape, Tube, or Tape & Reel acceptable
Manufacturer: Microchip Technology or equivalent qualified manufacturer

Substitute parts maintain identical memory specifications and package dimensions while potentially offering enhanced performance characteristics such as higher clock frequencies or extended temperature ratings.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Package	Write Cycle Time
25LC080T-I/SN	Microchip Technology	8Kbit	2 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
25LC080-I/SN	Microchip Technology	8Kbit	2 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
25AA080AT-I/SN	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
25LC080AT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
25LC080BT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
25LC080CT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
25LC080DT-E/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	5ms
AT25080B-SSHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
AT25080B-SSHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	5ms
BR25H080F-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	4ms
BR25H080FJ-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	4ms

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications): The 25LC080-I/SN serves as a direct substitute, differing only in packaging format (Tube versus Cut Tape & Digi-Reel). Both maintain identical electrical specifications and Active product status.

Enhanced Performance Substitutes (Higher Clock Frequency): Parts 25LC080AT-I/SN, 25LC080BT-I/SN, and 25LC080CT-I/SN operate at 10 MHz, providing higher clock frequency while maintaining voltage and temperature compatibility with the original specification. These parts are suitable for applications requiring faster data transfer rates.

Extended Temperature Range Substitutes: The 25LC080DT-E/SN extends operating temperature to -40°C ~ 125°C, accommodating industrial and automotive temperature environments while maintaining 10 MHz operation.

High-Speed Substitutes: AT25080B-SSHL-B and AT25080B-SSHL-T operate at 20 MHz with expanded voltage range (1.8V ~ 5.5V), providing maximum performance headroom. Both are Active status and ROHS3 compliant.

Automotive-Grade Alternatives: BR25H080F-2CE2 and BR25H080FJ-2CE2 from Rohm Semiconductor are AEC-Q100 qualified automotive-grade devices with 10 MHz operation and extended temperature range (-40°C ~ 125°C). These parts feature 4ms write cycle time and are suitable for automotive applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute 25LC080AT-I/SN for 25LC080T-I/SN? A: Yes. The 25LC080AT-I/SN maintains identical memory capacity, organization, interface, and package specifications. The primary difference is clock frequency (10 MHz versus 2 MHz), which is a performance enhancement. Voltage supply range and operating temperature remain compatible.

Q: What is the difference between 25LC080CT-I/SN and 25LC080DT-E/SN? A: Both operate at 10 MHz with 8Kbit capacity and 8-SOIC packaging. The 25LC080DT-E/SN extends operating temperature to 125°C, making it suitable for high-temperature applications. The 25LC080CT-I/SN operates to 85°C.

Q: Are Rohm Semiconductor parts compatible with Microchip Technology parts? A: BR25H080F-2CE2 and BR25H080FJ-2CE2 maintain identical memory specifications, SPI interface, and 8-SOIC package dimensions. The primary difference is manufacturer and automotive qualification (AEC-Q100). Electrical compatibility is maintained within the specified voltage and temperature ranges.

Q: What does AEC-Q100 qualification mean? A: AEC-Q100 is an automotive electronics qualification standard. BR25H080F-2CE2 and BR25H080FJ-2CE2 meet this qualification, making them suitable for automotive applications requiring enhanced reliability and quality assurance.

Q: Can I use AT25080B-SSHL-T in place of 25LC080T-I/SN? A: Yes. The AT25080B-SSHL-T provides higher clock frequency (20 MHz) and expanded voltage range (1.8V ~ 5.5V). It maintains identical memory capacity, organization, interface, and package specifications. The lower voltage minimum (1.8V) provides additional design flexibility.

Q: What is the significance of packaging format differences (Cut Tape, Tube, Tape & Reel)? A: Packaging format affects handling, storage, and automated assembly processes. Cut Tape & Digi-Reel, Tube, and Tape & Reel formats are interchangeable from an electrical and functional perspective. Selection depends on manufacturing process requirements and volume considerations.

Q: Why does BR25H080FJ-2CE2 have a different package designation (8-SOP-J) than other parts? A: BR25H080FJ-2CE2 uses 8-SOP-J packaging, which maintains the same 0.154" width and 3.90mm physical dimensions as standard 8-SOIC. The designation reflects Rohm's package nomenclature while maintaining mechanical and electrical compatibility.

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