Equivalent & Substitute Parts for 25AA080DT-I/MS

Part Overview

The 25AA080DT-I/MS is an 8Kbit SPI EEPROM memory IC manufactured by Microchip Technology, operating at 10 MHz with supply voltage range of 1.8V to 5.5V and temperature range of -40°C to 85°C. This device is packaged in 8-MSOP and is ROHS3 compliant. The part is currently active in production. Substitute parts are necessary when the original part number becomes unavailable, when packaging requirements differ, or when alternative manufacturers' components meet the same electrical and mechanical specifications.

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	1.8V ~ 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 25AA080DT-I/MS is determined by the following critical parameters: memory size (8Kbit), memory organization (1K x 8), SPI interface, and supply voltage compatibility (1.8V ~ 5.5V). Parts are grouped into two categories based on clock frequency:

Category 1: 10 MHz Clock Frequency (Direct Substitutes) Parts operating at 10 MHz with identical electrical specifications and compatible packaging. These include the 25AA080AT-I/MS and BR25H080FVM-2CTR.

Category 2: 20 MHz Clock Frequency (Higher Performance Substitutes) Parts operating at 20 MHz, which are backward compatible with 10 MHz applications due to higher clock speed capability. These include AT25080B-XHL-T, AT25080B-XHL-B, CAV25080YE-GT3, M95080-DFDW6TP, M95080-RDW6TP, and M95080-WDW6TP.

Category 3: Unspecified Clock Frequency The CAT25080YI-GT3 does not specify clock frequency in the provided data but maintains all other critical electrical parameters.

Packaging variations (Tape & Reel, Cut Tape, Tube) do not affect electrical substitution but may impact procurement and assembly processes.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temp	Package Type	Write Cycle Time
25AA080DT-I/MS	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms
25AA080AT-I/MS	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms
25AA080CT-I/MS	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms
AT25080B-XHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
AT25080B-XHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
BR25H080FVM-2CTR	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-MSOP	4ms
CAT25080YI-GT3	onsemi	8Kbit	Not Specified	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
CAV25080YE-GT3	onsemi	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	5ms
M95080-DFDW6TP	STMicroelectronics	8Kbit	20 MHz	1.7V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
M95080-RDW6TP	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
M95080-WDW6TP	STMicroelectronics	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications) The 25AA080AT-I/MS and 25AA080CT-I/MS are direct electrical equivalents to the 25AA080DT-I/MS, both manufactured by Microchip Technology with identical memory specifications, clock frequency, voltage range, and operating temperature. These parts differ only in packaging format (Cut Tape versus Tape & Reel). Selection between these variants depends on procurement and assembly requirements.

Higher Clock Frequency Alternatives The AT25080B-XHL-T, AT25080B-XHL-B, M95080-RDW6TP, and M95080-WDW6TP operate at 20 MHz and are electrically compatible with applications designed for 10 MHz operation. These parts support the same SPI interface, memory organization, and voltage supply range. The higher clock frequency provides additional performance margin without compromising backward compatibility.

Automotive-Grade Alternatives The BR25H080FVM-2CTR and CAV25080YE-GT3 are qualified to AEC-Q100 automotive standards with extended operating temperature range (-40°C to 125°C). These parts are suitable for applications requiring automotive-grade components. The BR25H080FVM-2CTR maintains 10 MHz operation, while CAV25080YE-GT3 operates at 20 MHz.

Voltage Supply Considerations The M95080-DFDW6TP supports the lowest minimum supply voltage (1.7V) among all substitutes. Parts with minimum supply voltage of 2.5V (BR25H080FVM-2CTR, CAV25080YE-GT3, M95080-WDW6TP) are not suitable for applications requiring operation below 2.5V.

Compliance Status All listed parts maintain ROHS3 compliance and REACH unaffected status, consistent with the original 25AA080DT-I/MS.

Frequently Asked Questions (FAQ)

Q: Can I use a 20 MHz part as a substitute for a 10 MHz application? A: Yes. Parts operating at 20 MHz are backward compatible with 10 MHz applications. The higher clock frequency does not create incompatibility; the device operates correctly at lower clock speeds.

Q: What is the difference between 8-MSOP and 8-TSSOP packaging? A: Both are 8-pin surface mount packages with different physical dimensions. 8-MSOP has a width of 0.118" (3.00mm), while 8-TSSOP has a width of 0.173" (4.40mm). PCB layout and footprint design must accommodate the selected package type.

Q: Are Tape & Reel, Cut Tape, and Tube packaging electrically equivalent? A: Yes. Packaging format affects only procurement, storage, and assembly processes. Electrical and functional specifications remain identical across packaging variants of the same part number.

Q: Which substitute offers the widest voltage supply range? A: The M95080-DFDW6TP supports 1.7V to 5.5V, providing the lowest minimum supply voltage among all listed substitutes.

Q: Can I use automotive-grade parts in non-automotive applications? A: Yes. Automotive-grade parts (BR25H080FVM-2CTR, CAV25080YE-GT3) meet or exceed commercial-grade specifications and are suitable for any application within their specified operating parameters.

Q: What is the significance of the write cycle time difference between parts? A: The 25AA080DT-I/MS and most substitutes specify 5ms write cycle time. The BR25H080FVM-2CTR specifies 4ms, indicating faster write operations. Both values are acceptable for SPI EEPROM applications; the difference does not affect compatibility.

Q: Is the CAT25080YI-GT3 a suitable substitute if clock frequency is not specified? A: The CAT25080YI-GT3 maintains all critical electrical parameters (8Kbit memory, 1K x 8 organization, SPI interface, 1.8V to 5.5V supply, -40°C to 85°C operating range). The unspecified clock frequency does not indicate incompatibility; however, contact the manufacturer for clock frequency specifications if this parameter is critical to your application.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message