25LC160AT-E/SN EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC160AT-E/SN is a 16Kbit Serial Peripheral Interface (SPI) EEPROM memory IC manufactured by Microchip Technology, packaged in 8-SOIC surface mount configuration. This non-volatile memory device operates at 10 MHz clock frequency with a supply voltage range of 2.5V to 5.5V and temperature range of -40°C to 125°C. The part is currently active in production and ROHS3 compliant.

Equivalent and substitute parts are necessary when the original part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for compatible alternatives with enhanced performance characteristics such as higher clock frequencies or extended voltage ranges.

Key Parameters

Parameter	Value
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-SOIC
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution compatibility for the 25LC160AT-E/SN is determined by the following critical parameters:

Core Compatibility Requirements:

Memory Size: 16Kbit (mandatory)
Memory Organization: 2K x 8 (mandatory)
Memory Interface: SPI (mandatory)
Package Type: 8-SOIC or equivalent footprint (mandatory)
Mounting Type: Surface Mount (mandatory)

Performance Parameters (allow substitution if equal or superior):

Clock Frequency: 10 MHz minimum
Write Cycle Time: 5ms maximum
Voltage Supply Range: must encompass 2.5V ~ 5.5V or be compatible within application requirements
Operating Temperature: must support -40°C ~ 125°C or application-specific range

Compliance Parameters:

RoHS Status: ROHS3 Compliant (required)
REACH Status: REACH Unaffected (required)

Substitute parts are grouped into three categories based on performance tier: standard performance (10 MHz clock), enhanced performance (20 MHz clock), and automotive-grade variants with AEC-Q100 qualification.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temp	Write Cycle	Package	Packaging Format	Product Status
25LC160AT-E/SN	Microchip	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-SOIC	Tape & Reel	Active
25LC160DT-E/SN	Microchip	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-SOIC	Cut Tape & Digi-Reel	Active
AT25160B-SSHL-T	Microchip	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Cut Tape & Digi-Reel	Active
AT25160B-SSHL-B	Microchip	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tube	Active
BR25H160F-2CE2	Rohm	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-SOP	Tape & Reel	Active
BR25L160FJ-WE2	Rohm	16Kbit	5 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tape & Reel	Not For New Designs
CAT25160VI-GT3	onsemi	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Cut Tape & Digi-Reel	Active
CAV25160VE-GT3	onsemi	16Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-SOIC	Tape & Reel	Active
M95160-DFMN6TP	STMicroelectronics	16Kbit	20 MHz	1.7V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tape & Reel	Active
M95160-DRMN3TP/K	STMicroelectronics	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	4ms	8-SOIC	Cut Tape & Digi-Reel	Active
M95160-RMN6TP	STMicroelectronics	16Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Cut Tape & Digi-Reel	Active

Engineering Selection Recommendations

Direct Replacement (Same Performance Tier): The 25LC160DT-E/SN is the primary direct substitute, offering identical electrical specifications with alternative packaging format (Cut Tape & Digi-Reel instead of Tape & Reel). Both parts are Microchip Technology products with active product status and ROHS3 compliance.

The M95160-RMN6TP from STMicroelectronics provides equivalent 10 MHz performance with identical memory specifications. This part maintains the same operating temperature range (-40°C ~ 125°C) and voltage supply compatibility (1.8V ~ 5.5V encompasses the original 2.5V ~ 5.5V requirement).

The BR25H160F-2CE2 from Rohm Semiconductor matches the 10 MHz clock frequency and -40°C ~ 125°C temperature range with improved write cycle time (4ms versus 5ms). This part is suitable for applications requiring automotive-grade reliability.

Enhanced Performance Alternatives (20 MHz Clock): The AT25160B-SSHL-T, CAT25160VI-GT3, and M95160-DRMN3TP/K offer doubled clock frequency (20 MHz) while maintaining 16Kbit capacity and SPI interface. These parts are suitable for applications where higher data throughput is beneficial. The M95160-DRMN3TP/K includes automotive-grade AEC-Q100 qualification and extended temperature support (-40°C ~ 125°C).

The CAV25160VE-GT3 combines 20 MHz performance with the original voltage range (2.5V ~ 5.5V) and extended temperature support (-40°C ~ 125°C), making it a performance-enhanced equivalent for automotive applications.

Legacy Consideration: The BR25L160FJ-WE2 is marked "Not For New Designs" and operates at reduced 5 MHz clock frequency. This part should not be selected for new applications.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 25LC160AT-E/SN with a 20 MHz variant like AT25160B-SSHL-T?

A: Yes, if your application design supports the higher clock frequency. The 20 MHz variants are backward compatible at lower clock speeds. Verify that your SPI interface and firmware can accommodate the faster device. The AT25160B-SSHL-T operates at a lower temperature maximum (-40°C ~ 85°C) compared to the original (-40°C ~ 125°C), so confirm this meets your application requirements.

Q: What is the difference between Tape & Reel and Cut Tape & Digi-Reel packaging?

A: Both are surface mount packaging formats suitable for automated assembly. Tape & Reel (TR) provides continuous reel format for high-volume production. Cut Tape & Digi-Reel (CT) offers flexibility for lower volumes or mixed component orders. The electrical specifications remain identical; the choice depends on manufacturing process requirements.

Q: Is the M95160-DRMN3TP/K suitable for automotive applications?

A: Yes. The M95160-DRMN3TP/K carries AEC-Q100 automotive qualification and supports extended temperature range (-40°C ~ 125°C). It provides 20 MHz performance with 4ms write cycle time and is ROHS3 compliant.

Q: Can I use BR25H160F-2CE2 as a direct replacement?

A: The BR25H160F-2CE2 is electrically compatible with identical memory capacity, SPI interface, and 10 MHz clock frequency. However, it uses 8-SOP package (0.173" width) versus the original 8-SOIC (0.154" width). Verify PCB footprint compatibility before substitution. The improved 4ms write cycle time is a performance advantage.

Q: Why do some substitutes have lower voltage minimums (1.7V or 1.8V) than the original (2.5V)?

A: Lower voltage minimums indicate broader supply voltage compatibility. Parts specified for 1.8V ~ 5.5V can operate across a wider range and are compatible with applications requiring 2.5V ~ 5.5V operation. This represents enhanced flexibility without compromising the original design requirements.

Q: What does ROHS3 compliance mean for this component?

A: ROHS3 (Restriction of Hazardous Substances Directive 3) compliance certifies that the component meets European environmental standards, restricting lead, cadmium, mercury, and other hazardous substances. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory compatibility.

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