Equivalent & Substitute Parts for 25LC160CT-I/MS

Part Overview

The 25LC160CT-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 device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, interface protocol, and package compatibility are maintained across the specified electrical and mechanical parameters.

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 ~ 85°C
Package Type	8-MSOP (0.118", 3.00mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 25LC160CT-I/MS is determined by the following critical parameters:

Core Functional Parameters:

Memory capacity of 16Kbit with 2K x 8 organization
SPI serial interface protocol
Write cycle time of 5ms
Non-volatile EEPROM technology

Electrical Compatibility Parameters:

Supply voltage range must accommodate the main part's 2.5V ~ 5.5V specification or provide a compatible subset
Operating temperature range of -40°C ~ 85°C minimum
Clock frequency of 10 MHz or higher

Mechanical Compatibility Parameters:

Surface mount packaging in 8-pin configuration
Package case variants: 8-MSOP or 8-TSSOP with compatible pin assignments
Moisture sensitivity level and thermal characteristics suitable for equivalent applications

Substitute parts are grouped by packaging type and clock frequency capability, with electrical parameter compatibility verified against the main part specification.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temp	Package Type	Write Cycle Time
25LC160CT-I/MS	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms
25LC160C-I/MS	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms
25AA160CT-I/MS	Microchip Technology	16Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-MSOP	5ms
AT25160B-XHL-B	Microchip Technology	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
CAT25160YI-GT3	onsemi	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	5ms
CAV25160YE-GT3	onsemi	16Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	5ms
S-25C160A0I-K8T3U3	ABLIC Inc.	16Kbit	5 MHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-TMSOP	5ms

Engineering Selection Recommendations

Direct Substitutes (Identical Specifications): The 25LC160C-I/MS provides identical electrical and functional specifications to the 25LC160CT-I/MS with the primary difference being packaging format (Tube versus Tape & Reel). This part is suitable for direct replacement in applications where packaging format does not impact procurement or assembly processes.

Enhanced Performance Substitutes (Higher Clock Frequency): The AT25160B-XHL-B, CAT25160YI-GT3, and CAV25160YE-GT3 operate at 20 MHz clock frequency, providing performance headroom beyond the 10 MHz specification of the main part. These parts maintain 16Kbit capacity and 5ms write cycle time. The CAV25160YE-GT3 includes automotive-grade qualification (AEC-Q100) with extended operating temperature range to 125°C, suitable for automotive applications.

Extended Voltage Range Substitute: The 25AA160CT-I/MS and AT25160B-XHL-B support lower minimum supply voltage (1.8V) compared to the main part (2.5V), enabling operation in low-power applications. The S-25C160A0I-K8T3U3 extends the lower voltage limit to 1.6V.

Package Considerations: Substitutes utilizing 8-TSSOP packaging (AT25160B-XHL-B, CAT25160YI-GT3, CAV25160YE-GT3) feature different physical dimensions (0.173", 4.40mm Width) compared to the 8-MSOP main part (0.118", 3.00mm Width). PCB layout and footprint verification is required for these substitutions. The S-25C160A0I-K8T3U3 uses 8-TMSOP packaging (0.110", 2.80mm Width).

Compliance Status: All substitute parts maintain ROHS3 compliance and REACH unaffected status consistent with the main part. Moisture sensitivity levels vary from MSL 1 (Unlimited) to MSL 3 (168 Hours), affecting storage and handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the 25LC160C-I/MS replace the 25LC160CT-I/MS in production? A: Yes. Both parts share identical electrical specifications, memory capacity, interface protocol, and package type. The difference is packaging format (Tube versus Tape & Reel). Verify that your assembly process accommodates the packaging format change.

Q: What is the advantage of using AT25160B-XHL-B or CAT25160YI-GT3 as substitutes? A: These parts operate at 20 MHz clock frequency, double the 10 MHz specification of the main part, providing performance margin for timing-critical applications. Both maintain 16Kbit capacity and 5ms write cycle time. Note the package change from 8-MSOP to 8-TSSOP requires PCB footprint verification.

Q: Is the 25AA160CT-I/MS compatible with 2.5V supply voltage applications? A: Yes. The 25AA160CT-I/MS supports 1.8V ~ 5.5V supply range, which encompasses the main part's 2.5V ~ 5.5V specification. This part is suitable for applications requiring lower minimum voltage operation.

Q: Can I use the S-25C160A0I-K8T3U3 in place of the 25LC160CT-I/MS? A: Functional compatibility exists for 16Kbit SPI EEPROM applications. However, the S-25C160A0I-K8T3U3 operates at 5 MHz clock frequency, half the main part's 10 MHz specification. This may impact timing-dependent applications. Additionally, the 8-TMSOP package differs from the 8-MSOP main part, requiring PCB layout verification.

Q: What is the difference between CAT25160YI-GT3 and CAV25160YE-GT3? A: Both parts operate at 20 MHz with 16Kbit capacity. The CAV25160YE-GT3 is automotive-grade (AEC-Q100 qualified) with extended operating temperature range (-40°C ~ 125°C) and supply voltage range (2.5V ~ 5.5V). The CAT25160YI-GT3 operates at -40°C ~ 85°C with 1.8V ~ 5.5V supply range. Select CAV25160YE-GT3 for automotive applications requiring higher temperature operation.

Q: Does package type affect electrical performance? A: Package type does not affect electrical performance or functional operation. However, 8-MSOP, 8-TSSOP, and 8-TMSOP packages have different physical dimensions and pin spacing. PCB footprint, thermal characteristics, and assembly process compatibility must be verified before substitution.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance status consistent with the main part. Verify moisture sensitivity level (MSL) requirements for your storage and assembly environment, as MSL ratings vary among substitute parts.

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