25LC080CT-H/SNVAO EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC080CT-H/SNVAO is an 8Kbit Serial Peripheral Interface (SPI) EEPROM memory IC manufactured by Microchip Technology. This non-volatile memory device operates at 10 MHz clock frequency with a supply voltage range of 2.5V to 5.5V and is qualified to AEC-Q100 automotive standards. The device is housed in an 8-SOIC surface mount package and maintains active product status. Substitute parts are identified when equivalent memory capacity, interface protocol, package form factor, and electrical operating parameters align with application requirements.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature Range	-40°C ~ 150°C
Write Cycle Time	5ms
Package / Case	8-SOIC (0.154", 3.90mm Width)
Grade	Automotive
Qualification	AEC-Q100
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 25LC080CT-H/SNVAO is determined by the following critical parameters:

Memory Capacity: 8Kbit with 1K x 8 organization
Interface Protocol: SPI serial communication
Package Form Factor: 8-SOIC surface mount package
Supply Voltage Compatibility: Minimum 2.5V support required
Operating Temperature Range: Minimum -40°C to 85°C support required
Write Cycle Time: 5ms or faster
Compliance: ROHS3 compliance and active product status

Substitute parts must maintain identical memory capacity and SPI interface. Package compatibility is confirmed through matching 8-SOIC form factor. Voltage supply ranges may exceed the original specification. Operating temperature ranges may be narrower than the original part. Clock frequency may exceed the original 10 MHz specification without affecting backward compatibility.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Write Cycle Time	Package	Grade	AEC-Q100
25LC080CT-H/SNVAO	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 150°C	5ms	8-SOIC	Automotive	Yes
AT25080B-SSHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	—	No
AT25080B-SSHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	—	No
CAT25080VI-GT3	onsemi	8Kbit	—	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	—	No
M95080-DRMN8TP/K	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 105°C	4ms	8-SOIC	Automotive	Yes
M95080-RMN6TP	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	—	No
M95080-WMN6TP	STMicroelectronics	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	—	No

Engineering Selection Recommendations

For Automotive Applications with AEC-Q100 Requirement: The M95080-DRMN8TP/K (STMicroelectronics) is the primary substitute. This part maintains AEC-Q100 qualification and automotive grade designation. Operating temperature range extends to 105°C, exceeding the original specification. Clock frequency of 20 MHz provides performance margin. Supply voltage range of 1.8V to 5.5V is compatible with the original 2.5V minimum requirement in most automotive contexts. Write cycle time of 4ms improves upon the original 5ms specification.

For Non-Automotive Applications: The AT25080B-SSHL-T (Microchip Technology) offers the highest inventory availability (101,475 units) with verified programmability status. This part provides 20 MHz clock frequency and 1.8V to 5.5V supply voltage compatibility. Moisture sensitivity level of 1 (unlimited) provides superior handling characteristics compared to the original MSL 3 rating.

For Extended Temperature Range Requirements: The original 25LC080CT-H/SNVAO maintains the widest operating temperature range (-40°C to 150°C) among all listed parts. No substitute achieves this specification. If extended high-temperature operation is required, the original part remains the only option.

For Supply Voltage Compatibility: The M95080-WMN6TP maintains the original 2.5V minimum supply voltage specification while providing 20 MHz clock frequency and improved write cycle performance.

Frequently Asked Questions (FAQ)

Q: Can AT25080B-SSHL-B or AT25080B-SSHL-T be used as direct replacements for 25LC080CT-H/SNVAO? A: These parts are functionally compatible for SPI EEPROM applications requiring 8Kbit capacity in 8-SOIC packaging. However, the operating temperature range is limited to -40°C to 85°C, which is narrower than the original -40°C to 150°C specification. Verify application temperature requirements before substitution.

Q: What is the difference between AT25080B-SSHL-B and AT25080B-SSHL-T? A: Both parts are identical in electrical specifications. The difference is packaging format: AT25080B-SSHL-B is supplied in Tube packaging, while AT25080B-SSHL-T is supplied in Cut Tape and Digi-Reel format. AT25080B-SSHL-T has significantly higher inventory availability and lower moisture sensitivity level (MSL 1 vs MSL 3).

Q: Is M95080-DRMN8TP/K suitable for automotive applications? A: Yes. The M95080-DRMN8TP/K maintains AEC-Q100 qualification and automotive grade designation, matching the original part's automotive credentials. This part is the recommended substitute for automotive applications.

Q: Why does CAT25080VI-GT3 lack a specified clock frequency? A: The clock frequency specification was not provided in the available data for this part. Contact the manufacturer or distributor for complete electrical specifications before design implementation.

Q: Can I use a substitute part with a lower supply voltage minimum (1.8V vs 2.5V)? A: Yes, provided your application circuit operates at or above 2.5V. A part rated for 1.8V minimum is compatible with 2.5V to 5.5V operation. Verify that your power supply and circuit design maintain voltage levels within the substitute part's specified range.

Q: What is the significance of write cycle time differences (4ms vs 5ms)? A: The M95080-DRMN8TP/K offers 4ms write cycle time compared to the original 5ms specification. This represents improved performance and is backward compatible. Applications designed for 5ms write cycles will function correctly with 4ms cycle time parts.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance, matching the original part's environmental compliance status.

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