Equivalent & Substitute Parts for 25LC010AT-H/SN

Part Overview

The 25LC010AT-H/SN is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 8-SOIC surface mount packaging. This device is classified as Active product status and is RoHS3 compliant. The part operates across a supply voltage range of 2.5V to 5.5V and supports operating temperatures from -40°C to 150°C. Finding equivalent and substitute parts becomes necessary when the original part reaches end-of-life, experiences supply constraints, or when design requirements necessitate alternative performance characteristics such as higher clock frequencies or different voltage specifications.

Key Parameters

Parameter	Value
Memory Size	1Kbit
Memory Organization	128 x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 150°C
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution compatibility for the 25LC010AT-H/SN is determined by the following critical parameters:

Core Compatibility Requirements:

Memory Size: 1Kbit (fixed requirement)
Memory Organization: 128 x 8 (fixed requirement)
Memory Interface: SPI (fixed requirement)
Package Type: 8-SOIC mechanical compatibility
Write Cycle Time: 5ms (fixed requirement)

Performance Variation Parameters:

Clock Frequency: 10 MHz (baseline); substitutes may operate at 5 MHz, 10 MHz, or 20 MHz
Voltage Supply Range: 2.5V ~ 5.5V (baseline); substitutes may support 1.8V ~ 5.5V (wider range acceptable)
Operating Temperature: -40°C ~ 150°C (baseline); substitutes may support -40°C ~ 85°C or -40°C ~ 125°C

Substitute parts must maintain identical memory capacity, organization, interface protocol, and package footprint. Variations in clock frequency, voltage range, and temperature range are acceptable provided the substitute meets or exceeds the original part's operational envelope for the intended application.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Package	Product Status
25LC010AT-H/SN	Microchip Technology	1Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 150°C	8-SOIC	Active
AT25010B-SSHL-B	Microchip Technology	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
BR25L010FJ-WE2	Rohm Semiconductor	1Kbit	5 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Not For New Designs
CAT25010VI-G	onsemi	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Obsolete
CAT25010VI-GT3	onsemi	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
CAV25010VE-GT3	onsemi	1Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-SOIC	Active
M95010-RMN6TP	STMicroelectronics	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active
M95010-WMN6TP	STMicroelectronics	1Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-SOIC	Active

Engineering Selection Recommendations

Primary Substitutes (Active Status, Full Compatibility):

AT25010B-SSHL-B and M95010-RMN6TP are direct functional equivalents with enhanced clock frequency (20 MHz) and wider voltage compatibility (1.8V ~ 5.5V). Both parts maintain RoHS3 compliance and are actively manufactured. The AT25010B-SSHL-B is supplied in Tube packaging, while M95010-RMN6TP is supplied in Tape & Reel format.

M95010-WMN6TP provides identical performance to M95010-RMN6TP with voltage supply range matching the original part (2.5V ~ 5.5V) and is available in Cut Tape & Digi-Reel packaging with the highest inventory availability (40,291 units).

CAT25010VI-GT3 offers 20 MHz operation with 1.8V ~ 5.5V voltage range in Active status, supplied in Tape & Reel format.

Specialized Substitute (Automotive Grade):

CAV25010VE-GT3 is qualified to AEC-Q100 automotive standards with operating temperature range of -40°C ~ 125°C, matching the original part's 10 MHz clock frequency and 2.5V ~ 5.5V voltage supply. This part is suitable for automotive applications requiring equivalent performance specifications.

Not Recommended for New Designs:

BR25L010FJ-WE2 carries "Not For New Designs" status and should be avoided for new development projects. CAT25010VI-G is classified as Obsolete and is unsuitable for production use.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher clock frequency than the original 25LC010AT-H/SN?

A: Yes. The 25LC010AT-H/SN operates at 10 MHz. Substitute parts operating at 20 MHz (such as AT25010B-SSHL-B, M95010-RMN6TP, M95010-WMN6TP, CAT25010VI-GT3, and CAT25010VI-G) are backward compatible and will function correctly in applications designed for 10 MHz operation. Higher clock frequency capability does not create incompatibility.

Q: What is the significance of the voltage supply range difference between 2.5V ~ 5.5V and 1.8V ~ 5.5V?

A: The original 25LC010AT-H/SN operates from 2.5V to 5.5V. Substitute parts with 1.8V ~ 5.5V range offer extended low-voltage capability, making them suitable for applications requiring operation below 2.5V. If your application operates only within the 2.5V ~ 5.5V window, both voltage ranges are functionally equivalent. Parts with 2.5V ~ 5.5V range (M95010-WMN6TP, CAV25010VE-GT3) maintain exact voltage compatibility with the original part.

Q: Are all substitute parts mechanically compatible with the original 8-SOIC footprint?

A: Yes. All listed substitute parts use the 8-SOIC package with 0.154" (3.90mm) width. Mechanical compatibility is maintained across all substitutes. However, verify PCB layout and thermal management requirements for your specific application.

Q: What is the difference between Tape & Reel, Tube, and Cut Tape packaging?

A: Packaging format affects supply and handling but does not impact electrical performance. Tape & Reel (TR) is standard for high-volume automated assembly. Tube packaging is used for lower-volume or manual assembly processes. Cut Tape (CT) & Digi-Reel provides flexibility for mixed-volume orders. Select packaging based on your manufacturing process requirements.

Q: Why should I avoid BR25L010FJ-WE2 and CAT25010VI-G?

A: BR25L010FJ-WE2 is marked "Not For New Designs," indicating the manufacturer is discontinuing this product line. CAT25010VI-G is classified as Obsolete and is no longer actively manufactured. Both parts present supply chain risk and should not be selected for new product development.

Q: Is CAV25010VE-GT3 suitable for my application if it is not automotive?

A: Yes. CAV25010VE-GT3 is AEC-Q100 qualified for automotive use, but automotive-grade components exceed standard industrial requirements and are fully compatible with non-automotive applications. The automotive qualification ensures higher reliability and stricter manufacturing controls, making it a valid choice for any application requiring equivalent performance.

Q: What is the practical difference between the original part's -40°C ~ 150°C temperature range and substitutes with -40°C ~ 85°C range?

A: The original 25LC010AT-H/SN supports operation up to 150°C. Most substitutes (AT25010B-SSHL-B, BR25L010FJ-WE2, CAT25010VI-G, CAT25010VI-GT3, M95010-RMN6TP, M95010-WMN6TP) are rated to 85°C. If your application requires operation above 85°C, select CAV25010VE-GT3 (-40°C ~ 125°C) or verify that the original part's extended temperature capability is necessary for your design.

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