25LC080CT-I/MNY EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC080CT-I/MNY is an 8Kbit SPI EEPROM memory IC manufactured by Microchip Technology, packaged in 8-TDFN (2x3) surface mount configuration. This non-volatile memory device operates at 10 MHz clock frequency with a 5ms write cycle time and supports supply voltages from 2.5V to 5.5V across an operating temperature range of -40°C to 85°C. The device is RoHS3 compliant with MSL 1 rating and is currently in active production status. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package compatibility, and electrical operating parameters.

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-TDFN (2x3)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 25LC080CT-I/MNY are qualified based on the following criteria:

Core Functional Requirements:

Memory capacity: 8Kbit
Memory organization: 1K x 8
Interface protocol: SPI
Write cycle time: 5ms (or faster)
Non-volatile EEPROM technology

Electrical Compatibility:

Supply voltage range must encompass or overlap with 2.5V ~ 5.5V
Operating temperature range: -40°C minimum and 85°C minimum upper limit
Clock frequency: 10 MHz or higher

Physical & Packaging Compatibility:

Surface mount technology
8-pin package variants (TDFN, UDFN, UFDFN, MLP) with exposed pad
Footprint compatibility within 2x3mm envelope

Compliance & Quality:

RoHS3 compliant
MSL rating 1 or 3 (both acceptable for unlimited or 168-hour moisture exposure)
Active product status

Substitutes are grouped by manufacturer and package type while maintaining full functional and electrical equivalence.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency (MHz)	Voltage Supply (V)	Operating Temp (°C)	Package Type	Write Cycle (ms)	MSL Rating
25LC080CT-I/MNY	Microchip Technology	8Kbit	10	2.5 ~ 5.5	-40 ~ 85	8-TDFN (2x3)	5	1
25AA080DT-I/MNY	Microchip Technology	8Kbit	10	1.8 ~ 5.5	-40 ~ 85	8-TDFN (2x3)	5	1
25LC080DT-E/MNY	Microchip Technology	8Kbit	10	2.5 ~ 5.5	-40 ~ 125	8-TDFN (2x3)	5	1
AT25080B-MAHL-T	Microchip Technology	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	8-UDFN (2x3)	5	3
CAT25080HU4I-GT3	onsemi	8Kbit	Not Specified	1.8 ~ 5.5	-40 ~ 85	8-UDFN-EP (2x3)	5	1
M95080-DFMC6TG	STMicroelectronics	8Kbit	20	1.7 ~ 5.5	-40 ~ 85	8-UFDFPN (2x3)	5	1
M95080-RMC6TG	STMicroelectronics	8Kbit	20	1.8 ~ 5.5	-40 ~ 85	8-UFDFPN (2x3)	5	1
M95080-DRMF3TG/K	STMicroelectronics	8Kbit	20	1.8 ~ 5.5	-40 ~ 125	8-MLP (2x3)	4	1

Engineering Selection Recommendations

Direct Equivalents (Microchip Technology 25LC/25AA Series):

The 25AA080DT-I/MNY and 25LC080DT-E/MNY are direct functional equivalents from Microchip Technology. The 25AA080DT-I/MNY extends the minimum supply voltage to 1.8V, providing broader voltage compatibility while maintaining identical clock frequency and package configuration. The 25LC080DT-E/MNY maintains the 2.5V minimum supply voltage of the primary part but extends the maximum operating temperature to 125°C, suitable for elevated temperature applications. Both devices retain MSL 1 rating and RoHS3 compliance.

Higher Clock Frequency Alternatives (20 MHz):

The AT25080B-MAHL-T, M95080-DFMC6TG, M95080-RMC6TG, and M95080-DRMF3TG/K operate at 20 MHz clock frequency, providing double the speed capability while maintaining 5ms write cycle time (M95080-DRMF3TG/K achieves 4ms). These parts are suitable for applications requiring faster SPI communication. The M95080-DRMF3TG/K includes automotive-grade qualification (AEC-Q100) and extends operating temperature to 125°C, making it appropriate for automotive and industrial environments.

Cross-Manufacturer Options:

The onsemi CAT25080HU4I-GT3 provides equivalent 8Kbit SPI EEPROM functionality with 1.8V ~ 5.5V supply range and MSL 1 rating. STMicroelectronics M95080 series devices offer 20 MHz operation with supply voltages as low as 1.7V (M95080-DFMC6TG) or 1.8V (M95080-RMC6TG and M95080-DRMF3TG/K).

Package Considerations:

All substitute parts maintain 8-pin surface mount packages with exposed pads in 2x3mm footprints. Package variants include TDFN, UDFN, UFDFN, and MLP designations. PCB layout compatibility requires verification of specific pin assignments and thermal pad dimensions for each package type.

Compliance & Availability:

All listed substitutes maintain RoHS3 compliance and REACH unaffected status. MSL ratings of 1 or 3 are both acceptable for standard moisture-controlled storage and assembly environments. All parts are in active production status with confirmed inventory availability.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 25LC080CT-I/MNY with the 25AA080DT-I/MNY?

A: Yes. Both are Microchip Technology 8Kbit SPI EEPROM devices in identical 8-TDFN (2x3) packages with matching clock frequency (10 MHz) and write cycle time (5ms). The 25AA080DT-I/MNY supports lower minimum supply voltage (1.8V vs. 2.5V) and is fully compatible. No design changes are required.

Q: What is the difference between the 25LC080DT-E/MNY and the primary part?

A: The 25LC080DT-E/MNY is functionally identical except for extended maximum operating temperature (125°C vs. 85°C). Select this variant if your application requires operation above 85°C. Supply voltage range and package remain unchanged.

Q: Can I use the M95080 series parts as substitutes?

A: Yes, with design considerations. M95080 devices operate at 20 MHz (double the primary part's 10 MHz), providing faster SPI communication. All M95080 variants maintain 8Kbit capacity, 1K x 8 organization, and 5ms write cycle time. Package types differ (UFDFPN or MLP vs. TDFN), requiring PCB layout verification. Supply voltage ranges are compatible or broader (1.7V ~ 5.5V minimum).

Q: Are there package compatibility issues between TDFN and UDFN variants?

A: Yes. While both are 8-pin surface mount packages in 2x3mm footprints, TDFN and UDFN have different pin configurations and thermal pad designs. PCB footprints are not interchangeable without layout modification. Verify pin assignments and thermal pad dimensions before substitution.

Q: What is the significance of MSL 3 rating on the AT25080B-MAHL-T?

A: MSL 3 indicates 168-hour moisture sensitivity level, compared to MSL 1 (unlimited) on most other substitutes. This requires stricter moisture control during storage and assembly. For standard manufacturing environments with proper moisture management, MSL 3 parts are acceptable. Extended storage without desiccant protection may require baking before assembly.

Q: Can I use the automotive-qualified M95080-DRMF3TG/K in non-automotive applications?

A: Yes. Automotive qualification (AEC-Q100) indicates enhanced reliability testing and temperature range extension (-40°C ~ 125°C). This part is suitable for any application requiring these specifications, including industrial and extended-temperature consumer applications.

Q: What supply voltage range should I verify for my design?

A: The primary part operates at 2.5V ~ 5.5V. Most substitutes support 1.8V ~ 5.5V or 1.7V ~ 5.5V, providing broader compatibility. If your design operates below 2.5V, select substitutes with 1.8V or 1.7V minimum ratings. If your design operates at exactly 2.5V or above, all substitutes are compatible.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are RoHS3 compliant and REACH unaffected, matching the primary part's compliance status.

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