Equivalent & Substitute Parts for 25LC160BT-E/ST

Part Overview

The 25LC160BT-E/ST is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface with 10 MHz clock frequency in 8-TSSOP surface mount packaging. This non-volatile memory device operates across 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 status and ROHS3 compliant. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional interchangeability in circuit applications.

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 eligibility for the 25LC160BT-E/ST is determined by the following critical parameters: 16Kbit memory capacity, 2K x 8 memory organization, SPI interface protocol, 8-TSSOP package configuration, and surface mount mounting type. All substitute parts must maintain these core specifications to ensure functional compatibility.

Secondary parameters that may vary within acceptable limits include clock frequency (5 MHz to 20 MHz), supply voltage range (minimum 1.6V to maximum 5.5V), and operating temperature range (-40°C to 85°C or -40°C to 125°C). Write cycle time remains constant at 5ms across all qualified substitutes.

The substitute parts are grouped into the following categories:

Microchip Technology Family: 25LC160AT-E/ST maintains identical electrical specifications with alternative packaging format (Cut Tape vs. Tape & Reel).

onsemi Family: CAT25160YI-GT3 and CAV25160YE-GT3 offer higher clock frequency (20 MHz) with compatible voltage and temperature ranges. CAV25160YE-GT3 includes automotive qualification (AEC-Q100).

STMicroelectronics Family: M95160-RDW6TP provides equivalent performance with extended supply voltage range (1.8V minimum).

Renesas Electronics Family: R1EX25016ATA00I#S0 operates at reduced clock frequency (5 MHz) with extended lower voltage limit (1.8V minimum).

ABLIC Inc. Family: S-25C160A0I-T8T1U3 operates at reduced clock frequency (5 MHz) with extended lower voltage limit (1.6V minimum).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Package	Packaging Format
25LC160BT-E/ST	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Tape & Reel
25LC160AT-E/ST	Microchip Technology	16Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Cut Tape
CAT25160YI-GT3	onsemi	16Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel
CAV25160YE-GT3	onsemi	16Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Tape & Reel
M95160-RDW6TP	STMicroelectronics	16Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Cut Tape & Digi-Reel
R1EX25016ATA00I#S0	Renesas Electronics	16Kbit	5 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Tape & Reel
S-25C160A0I-T8T1U3	ABLIC Inc.	16Kbit	5 MHz	1.6V ~ 5.5V	-40°C ~ 85°C	8-TSSOP	Cut Tape

Engineering Selection Recommendations

Direct Replacement (Identical Specifications): 25LC160AT-E/ST is the primary equivalent, differing only in packaging format (Cut Tape). Selection between 25LC160BT-E/ST and 25LC160AT-E/ST depends on procurement and assembly requirements rather than electrical performance.

Higher Performance Alternative: CAT25160YI-GT3 and CAV25160YE-GT3 offer doubled clock frequency (20 MHz) while maintaining SPI interface compatibility. CAV25160YE-GT3 extends operating temperature to 125°C and includes automotive-grade qualification (AEC-Q100), suitable for applications requiring extended temperature range or automotive compliance.

Extended Voltage Range Options: M95160-RDW6TP and R1EX25016ATA00I#S0 support lower minimum supply voltage (1.8V), enabling use in battery-powered or low-voltage applications. S-25C160A0I-T8T1U3 extends the lower voltage limit to 1.6V for ultra-low-power designs.

Reduced Clock Frequency Alternatives: R1EX25016ATA00I#S0 and S-25C160A0I-T8T1U3 operate at 5 MHz, suitable for applications with lower speed requirements or where reduced EMI is beneficial.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and REACH unaffected status. CAV25160YE-GT3 includes AEC-Q100 automotive qualification for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can 25LC160AT-E/ST be used as a direct replacement for 25LC160BT-E/ST?

A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications, memory capacity, interface protocol, and package type. The only difference is packaging format (Cut Tape vs. Tape & Reel), which does not affect circuit functionality.

Q: What is the primary advantage of CAT25160YI-GT3 over the original part?

A: CAT25160YI-GT3 operates at 20 MHz clock frequency, double that of 25LC160BT-E/ST, enabling faster data transfer rates. However, its maximum operating temperature is limited to 85°C compared to 125°C for the original part.

Q: Is CAV25160YE-GT3 suitable for automotive applications?

A: Yes. CAV25160YE-GT3 carries AEC-Q100 automotive qualification and maintains the extended temperature range (-40°C to 125°C) of the original part while offering 20 MHz clock frequency.

Q: Can parts with lower clock frequency (5 MHz) be used in place of the 10 MHz original?

A: Yes, if the application does not require the full 10 MHz performance. R1EX25016ATA00I#S0 and S-25C160A0I-T8T1U3 operate at 5 MHz and are functionally compatible, though data transfer rates will be reduced.

Q: What is the benefit of M95160-RDW6TP?

A: M95160-RDW6TP supports supply voltage as low as 1.8V, making it suitable for low-voltage applications. It maintains 10 MHz clock frequency and is available in high volume (53,400 pcs in stock).

Q: Are all substitute parts available in 8-TSSOP package?

A: Yes. All substitute parts listed use the 8-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring PCB layout compatibility with the original 25LC160BT-E/ST.

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

A: Tape & Reel packaging is supplied on continuous tape for automated assembly equipment. Cut Tape is supplied in individual tape segments. Both formats contain identical components; selection depends on assembly process requirements.

Q: Do all substitute parts have the same 5ms write cycle time?

A: Yes. All substitute parts maintain 5ms write cycle time for word and page operations, ensuring timing compatibility in applications.

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