Equivalent & Substitute Parts for 25LC160D-I/MS

Part Overview

The 25LC160D-I/MS is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 8-MSOP surface mount packaging. This non-volatile memory device operates across a 2.5V to 5.5V supply range and maintains functionality from -40°C to 85°C. The part is ROHS3 compliant and currently in active production status with 872 units in stock.

Substitute parts are necessary when the primary part becomes unavailable, when alternative voltage specifications are required, when higher clock frequencies are needed for performance optimization, or when different packaging formats are mandated by board design constraints.

Key Parameters

Parameter	25LC160D-I/MS
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Voltage Supply Range	2.5V ~ 5.5V
Write Cycle Time	5ms
Operating Temperature	-40°C ~ 85°C
Package Type	8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution validity for the 25LC160D-I/MS is determined by the following critical parameters:

Memory Specifications: All substitute parts must maintain 16Kbit capacity with 2K x 8 organization and SPI interface to ensure functional compatibility at the system level.

Electrical Compatibility: The main part operates at 2.5V minimum supply voltage. Substitutes with lower minimum voltage requirements (1.8V or 1.6V) are electrically compatible and provide enhanced flexibility for low-power applications. All substitutes must support the 5.5V maximum supply voltage.

Clock Frequency: The main part operates at 10 MHz. Substitutes operating at equal or higher frequencies (10 MHz, 20 MHz, or 5 MHz) maintain compatibility, though higher frequencies provide performance headroom.

Package Format: The main part uses 8-MSOP packaging (0.118", 3.00mm width). Substitutes in 8-TSSOP (0.173", 4.40mm width) or 8-WSSOP formats require PCB layout redesign and are considered package-level alternatives.

Temperature Range: The main part operates -40°C to 85°C. Substitutes with extended ranges (-40°C to 125°C) are compatible for standard applications and provide margin for harsh environments.

Compliance & Certification: All listed substitutes maintain ROHS3 compliance and REACH unaffected status, matching the main part's regulatory profile.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Temperature Range	Package Type	Write Cycle Time	Inventory
25LC160D-I/MS	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	872
25AA160B-I/MS	Microchip Technology	16Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	962
25AA160C-I/MS	Microchip Technology	16Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	1554
25LC160A-I/MS	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	1134
25LC160C-I/MS	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms	1183
AT25160B-XHL-B	Microchip Technology	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms	4300
BR25H160FVM-2CTR	Rohm Semiconductor	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-MSOP	4ms	983
CAT25160YI-GT3	onsemi	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms	3090
CAV25160YE-GT3	onsemi	16Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	5ms	1552
S-25C160A0I-K8T3U3	ABLIC Inc.	16Kbit	5 MHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-WSSOP	5ms	1002

Engineering Selection Recommendations

Direct Pin-Compatible Substitutes (8-MSOP Package):

The 25AA160B-I/MS, 25AA160C-I/MS, 25LC160A-I/MS, and 25LC160C-I/MS maintain identical 8-MSOP packaging and can be used as direct replacements without PCB modification. The 25AA160 series offers extended low-voltage operation (1.8V minimum) compared to the 25LC160D-I/MS (2.5V minimum), providing compatibility with battery-powered and low-power applications. The 25LC160A-I/MS and 25LC160C-I/MS maintain the same 2.5V minimum voltage specification as the main part.

Automotive-Grade Alternative (8-MSOP Package):

The BR25H160FVM-2CTR from Rohm Semiconductor provides AEC-Q100 automotive qualification with identical 8-MSOP packaging. This part operates across -40°C to 125°C, extending the upper temperature limit by 40°C. Write cycle time is reduced to 4ms, providing faster programming performance. This substitute is suitable for automotive and industrial applications requiring extended temperature operation.

Higher Clock Frequency Substitutes (8-TSSOP Package):

The AT25160B-XHL-B, CAT25160YI-GT3, and CAV25160YE-GT3 operate at 20 MHz, doubling the clock frequency of the main part. These parts require PCB layout redesign due to 8-TSSOP packaging (0.173", 4.40mm width versus 0.118", 3.00mm width). The CAV25160YE-GT3 includes AEC-Q100 automotive qualification and -40°C to 125°C temperature range. Selection of these parts is justified when higher SPI clock speeds are required for system performance optimization.

Low-Voltage, Low-Frequency Alternative (8-WSSOP Package):

The S-25C160A0I-K8T3U3 from ABLIC Inc. operates at 5 MHz with extended low-voltage support (1.6V minimum). This part requires PCB layout redesign due to 8-WSSOP packaging. Selection is appropriate for ultra-low-power applications where reduced clock frequency is acceptable and minimum supply voltage below 2.5V is required.

Frequently Asked Questions (FAQ)

Q: Can I use 25AA160B-I/MS as a direct replacement for 25LC160D-I/MS?

A: Yes. Both parts use 8-MSOP packaging and maintain identical pinout, memory capacity (16Kbit), organization (2K x 8), SPI interface, and 10 MHz clock frequency. The 25AA160B-I/MS extends the minimum supply voltage to 1.8V, making it compatible with the 2.5V to 5.5V range of the main part. No PCB modification is required.

Q: What is the difference between 25LC160 and 25AA160 series?

A: The primary difference is minimum supply voltage. The 25LC160 series operates from 2.5V minimum, while the 25AA160 series operates from 1.8V minimum. Both series maintain identical memory specifications, SPI interface, and packaging options. The 25AA160 series provides enhanced flexibility for low-power applications.

Q: Can I use AT25160B-XHL-B in place of 25LC160D-I/MS without PCB changes?

A: No. The AT25160B-XHL-B uses 8-TSSOP packaging (0.173", 4.40mm width) while the main part uses 8-MSOP packaging (0.118", 3.00mm width). PCB footprint redesign is required. However, the part is electrically compatible with identical memory specifications and SPI interface, operating at 20 MHz clock frequency.

Q: Is BR25H160FVM-2CTR suitable for automotive applications?

A: Yes. The BR25H160FVM-2CTR carries AEC-Q100 automotive qualification and operates across -40°C to 125°C temperature range. It maintains 8-MSOP packaging compatible with the main part and provides identical memory specifications with 4ms write cycle time.

Q: What is the advantage of CAV25160YE-GT3 over CAT25160YI-GT3?

A: The CAV25160YE-GT3 includes AEC-Q100 automotive qualification and operates across -40°C to 125°C (versus -40°C to 85°C for CAT25160YI-GT3). Both parts operate at 20 MHz with 8-TSSOP packaging. Selection depends on temperature range requirements and automotive compliance needs.

Q: Can I use S-25C160A0I-K8T3U3 in a high-speed SPI application?

A: No. The S-25C160A0I-K8T3U3 operates at 5 MHz clock frequency, half the speed of the main part. This part is suitable for applications where reduced clock speed is acceptable and extended low-voltage operation (1.6V minimum) is required. PCB layout redesign is also necessary due to 8-WSSOP packaging.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory profile of the main part.

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