25LC160CT-H/SN Equivalent & Substitute Parts

Part Overview

The 25LC160CT-H/SN is a 16Kbit SPI EEPROM memory IC manufactured by Microchip Technology, designed for non-volatile data storage applications requiring SPI serial interface communication. This device operates at 5 MHz clock frequency with a supply voltage range of 2.5V to 5.5V and supports operating temperatures from -40°C to 150°C. The part is currently active in production and ROHS3 compliant.

Substitute parts are necessary when the original 25LC160CT-H/SN becomes unavailable, when higher clock frequencies are required for improved system performance, when extended temperature ranges are needed for automotive or industrial applications, or when alternative packaging formats better suit manufacturing requirements.

Key Parameters

Parameter	Value
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	SPI
Clock Frequency	5 MHz
Write Cycle Time	6ms
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 of the 25LC160CT-H/SN is determined by the following critical parameters:

Core Compatibility Requirements:

Memory Size: 16Kbit (fixed requirement)
Memory Organization: 2K x 8 (fixed requirement)
Memory Interface: SPI (fixed requirement)
Package Type: 8-SOIC with 0.154" width and 3.90mm width (primary requirement)
Mounting Type: Surface Mount (fixed requirement)

Performance Parameters (Flexible):

Clock Frequency: Minimum 5 MHz (higher frequencies are backward compatible)
Write Cycle Time: Maximum 6ms (faster times are acceptable)
Voltage Supply Range: Must encompass 2.5V ~ 5.5V or be a subset compatible with system design
Operating Temperature: Must support -40°C minimum and 150°C maximum, or extended ranges for specific applications

Compliance Requirements:

RoHS3 Compliant (mandatory)
REACH Unaffected (mandatory)

Substitute parts are grouped into three categories: direct replacements with identical or superior electrical specifications, automotive-grade alternatives with AEC-Q100 qualification for extended temperature ranges, and higher-speed variants offering improved clock frequency performance.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency (MHz)	Write Cycle Time (ms)	Voltage Supply (V)	Operating Temp (°C)	Package	Automotive Grade
25LC160CT-H/SN	Microchip Technology	16Kbit	5	6	2.5 ~ 5.5	-40 ~ 150	8-SOIC	No
AT25160B-SSHL-T	Microchip Technology	16Kbit	20	5	1.8 ~ 5.5	-40 ~ 85	8-SOIC	No
BR25H160F-2CE2	Rohm Semiconductor	16Kbit	10	4	2.5 ~ 5.5	-40 ~ 125	8-SOIC	Yes
BR25H160FJ-2CE2	Rohm Semiconductor	16Kbit	10	4	2.5 ~ 5.5	-40 ~ 125	8-SOIC	Yes
CAT25160VI-GT3	onsemi	16Kbit	20	5	1.8 ~ 5.5	-40 ~ 85	8-SOIC	No
CAV25160VE-GT3	onsemi	16Kbit	20	5	2.5 ~ 5.5	-40 ~ 125	8-SOIC	Yes
M95160-DFMN6TP	STMicroelectronics	16Kbit	20	5	1.7 ~ 5.5	-40 ~ 85	8-SOIC	No
M95160-DRMN3TP/K	STMicroelectronics	16Kbit	20	4	1.8 ~ 5.5	-40 ~ 125	8-SOIC	Yes
M95160-RMN6TP	STMicroelectronics	16Kbit	10	5	1.8 ~ 5.5	-40 ~ 85	8-SOIC	No

Engineering Selection Recommendations

For Direct Replacement (Non-Automotive Applications): AT25160B-SSHL-T, CAT25160VI-GT3, and M95160-DFMN6TP are suitable direct replacements offering higher clock frequencies (20 MHz) while maintaining ROHS3 compliance and active product status. These parts support the full 2.5V to 5.5V supply range required by the original design, though operating temperature range is reduced to -40°C to 85°C.

For Automotive and Extended Temperature Applications: BR25H160F-2CE2, BR25H160FJ-2CE2, CAV25160VE-GT3, and M95160-DRMN3TP/K are AEC-Q100 qualified automotive-grade alternatives. These parts extend the upper operating temperature limit to 125°C and maintain ROHS3 compliance. BR25H160F-2CE2 and BR25H160FJ-2CE2 operate at 10 MHz with 4ms write cycle time. CAV25160VE-GT3 and M95160-DRMN3TP/K operate at 20 MHz with improved performance characteristics.

For Performance-Critical Applications: M95160-DRMN3TP/K offers the fastest write cycle time (4ms) combined with 20 MHz clock frequency and AEC-Q100 automotive qualification, making it suitable for time-sensitive applications requiring extended temperature operation.

For Cost-Optimized Selection: M95160-RMN6TP provides a balanced alternative with 10 MHz clock frequency matching the original 25LC160CT-H/SN performance envelope while offering lower voltage supply floor (1.8V) and active inventory status.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher clock frequency than the original 25LC160CT-H/SN?

A: Yes. Higher clock frequencies (10 MHz, 20 MHz) are backward compatible with designs specified for 5 MHz operation. The SPI interface remains identical, and the substitute part will function correctly at lower clock speeds if required by the application.

Q: What is the difference between the 8-SOIC and 8-SOP package variants?

A: The 8-SOIC (Small Outline Integrated Circuit) and 8-SOP (Small Outline Package) are functionally equivalent for this EEPROM application. Both are surface-mount packages with 0.154" width and 3.90mm body width. The primary difference is in lead geometry and manufacturing process. Parts like BR25H160F-2CE2 (8-SOP) and BR25H160FJ-2CE2 (8-SOP-J) are electrically interchangeable with 8-SOIC variants.

Q: Are automotive-grade parts (AEC-Q100) suitable for non-automotive applications?

A: Yes. Automotive-grade parts meet or exceed commercial-grade specifications and are fully compatible with non-automotive designs. They offer extended temperature ranges and additional qualification testing, making them suitable for industrial and harsh-environment applications.

Q: What is the minimum voltage supply requirement for substitute parts?

A: The original 25LC160CT-H/SN requires 2.5V minimum. Most substitute parts support lower minimum voltages (1.7V to 1.8V), which is compatible with the original specification. Verify that your power supply design meets the substitute part's minimum voltage requirement.

Q: Can I substitute a part with a reduced operating temperature range?

A: Only if your application does not require the full -40°C to 150°C range of the original part. Parts like AT25160B-SSHL-T and CAT25160VI-GT3 operate to 85°C maximum, which is suitable for standard commercial and industrial applications but not for extended high-temperature environments.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the original 25LC160CT-H/SN.

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