25LC160DT-E/ST Equivalent & Substitute Parts

Part Overview

The 25LC160DT-E/ST is a 16Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, configured for SPI interface operation at 10 MHz clock frequency. This non-volatile memory device is packaged in 8-TSSOP surface mount configuration and operates across a supply voltage range of 2.5V to 5.5V with an operating temperature range of -40°C to 125°C. The part is currently active in production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts become necessary when the primary part number experiences inventory constraints, extended lead times, or when design requirements necessitate alternative electrical specifications such as higher clock frequency, extended temperature ranges, or automotive-grade qualification.

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-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution compatibility for the 25LC160DT-E/ST is determined by the following critical parameters:

Primary Compatibility Criteria:

Memory Size: 16Kbit (fixed requirement)
Memory Organization: 2K x 8 (fixed requirement)
Memory Interface: SPI (fixed requirement)
Package Type: 8-TSSOP (fixed requirement)
Mounting Type: Surface Mount (fixed requirement)

Secondary Compatibility Criteria (allowable variations):

Clock Frequency: 10 MHz or higher
Write Cycle Time: 5ms or faster
Voltage Supply Range: Must encompass or exceed 2.5V ~ 5.5V
Operating Temperature: Must encompass or exceed -40°C ~ 125°C
Packaging Format: Tape & Reel (TR) or Cut Tape (CT) formats are interchangeable

Substitute parts are grouped into three categories based on electrical performance alignment with the main part specifications.

Parameter Comparison

Part Number	Manufacturer	Clock Frequency	Voltage Supply	Operating Temperature	Write Cycle Time	Packaging	Product Status	Automotive Grade
25LC160DT-E/ST	Microchip Technology	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	Tape & Reel (TR)	Active	No
25LC160AT-E/ST	Microchip Technology	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	Cut Tape (CT)	Active	No
AT25160B-XHL-T	Microchip Technology	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	Cut Tape (CT) & Digi-Reel®	Active	No
BR25H160FVT-2CE2	Rohm Semiconductor	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	Tape & Reel (TR)	Active	Yes (AEC-Q100)
CAT25160YI-GT3	onsemi	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	Tape & Reel (TR)	Active	No
CAV25160YE-GT3	onsemi	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	Tape & Reel (TR)	Active	Yes (AEC-Q100)
M95160-DRDW3TP/K	STMicroelectronics	20 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	4ms	Cut Tape (CT) & Digi-Reel®	Active	Yes (AEC-Q100)
M95160-RDW6TP	STMicroelectronics	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	Cut Tape (CT) & Digi-Reel®	Active	No
S-25C160A0I-T8T1U3	ABLIC Inc.	5 MHz	1.6V ~ 5.5V	-40°C ~ 85°C	5ms	Cut Tape (CT)	Active	No

Engineering Selection Recommendations

Direct Equivalent (Identical Electrical Specifications):

The 25LC160AT-E/ST from Microchip Technology provides identical electrical performance to the 25LC160DT-E/ST with the only difference being packaging format (Cut Tape versus Tape & Reel). This part is suitable for direct substitution when packaging format flexibility exists.

Enhanced Performance Substitutes (Higher Clock Frequency):

The AT25160B-XHL-T, CAT25160YI-GT3, and M95160-DRDW3TP/K offer 20 MHz clock frequency operation, providing performance headroom beyond the 10 MHz specification. These parts are suitable when higher data throughput is beneficial. The AT25160B-XHL-T and CAT25160YI-GT3 operate at reduced maximum temperature (-40°C to 85°C) compared to the main part. The M95160-DRDW3TP/K maintains the full -40°C to 125°C temperature range and includes automotive-grade AEC-Q100 qualification.

Automotive-Grade Alternatives:

The BR25H160FVT-2CE2 from Rohm Semiconductor and CAV25160YE-GT3 from onsemi are AEC-Q100 qualified automotive-grade parts. The BR25H160FVT-2CE2 matches the 10 MHz clock frequency and full temperature range of the main part with 4ms write cycle time. The CAV25160YE-GT3 provides 20 MHz operation with full temperature range coverage and automotive qualification. The M95160-DRDW3TP/K from STMicroelectronics combines automotive qualification with 20 MHz performance and extended temperature range.

Lower Performance Alternative:

The S-25C160A0I-T8T1U3 from ABLIC Inc. operates at 5 MHz clock frequency, which is half the main part specification. This part is suitable only when lower clock frequency is acceptable for the application.

Product Status Consideration:

All recommended substitute parts maintain Active product status. The CAT25160YI-G variant from onsemi is marked Obsolete and should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can the 25LC160AT-E/ST replace the 25LC160DT-E/ST in all applications?

A: Yes. The 25LC160AT-E/ST provides identical electrical specifications including 10 MHz clock frequency, 2.5V to 5.5V supply voltage range, and -40°C to 125°C operating temperature. The only difference is packaging format (Cut Tape versus Tape & Reel), which does not affect electrical compatibility.

Q: What is the advantage of selecting a 20 MHz substitute part?

A: Parts operating at 20 MHz clock frequency provide higher data throughput capability. However, the application circuit must support this higher frequency. The 25LC160DT-E/ST operates at 10 MHz, so a 20 MHz substitute will function correctly in existing circuits but will not provide performance benefit unless the circuit is designed to utilize the higher frequency.

Q: Are automotive-grade parts (AEC-Q100) compatible with non-automotive applications?

A: Yes. Automotive-grade parts meet more stringent qualification requirements and are fully compatible with non-automotive applications. Automotive-grade parts such as BR25H160FVT-2CE2, CAV25160YE-GT3, and M95160-DRDW3TP/K can be used as direct substitutes in any application requiring the 25LC160DT-E/ST.

Q: Why does the S-25C160A0I-T8T1U3 operate at only 5 MHz?

A: The S-25C160A0I-T8T1U3 from ABLIC Inc. is designed with a lower maximum clock frequency specification. This part is suitable only for applications where 5 MHz operation is acceptable. It should not be selected as a substitute for the 25LC160DT-E/ST unless the application requirements explicitly allow reduced clock frequency.

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

A: Tape & Reel (TR) packaging supplies components on continuous tape wound on reels, suitable for high-volume automated assembly. Cut Tape (CT) packaging supplies components on tape segments cut to specific lengths, suitable for lower-volume or mixed-component assembly. Both formats contain identical components; the difference is in delivery and handling format only.

Q: Can I use M95160-RDW6TP as a substitute?

A: The M95160-RDW6TP is compatible with the 25LC160DT-E/ST for 10 MHz SPI EEPROM applications. However, it operates at a reduced maximum temperature range (-40°C to 85°C) compared to the main part (-40°C to 125°C). Select this part only if the application does not require operation above 85°C.

Q: What does ROHS3 compliance mean?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting the use of specific hazardous materials in electrical and electronic equipment. All listed substitute parts maintain ROHS3 compliance.

Q: Is moisture sensitivity level important for my application?

A: Moisture Sensitivity Level (MSL) indicates the component's sensitivity to moisture during storage and handling. The 25LC160DT-E/ST has MSL 1 (Unlimited), meaning it has no moisture sensitivity restrictions. Most substitute parts also carry MSL 1 rating, except AT25160B-XHL-T which has MSL 3 (168 Hours), requiring controlled storage conditions.

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