Equivalent & Substitute Parts for 25LC080CT-I/ST

Part Overview

The 25LC080CT-I/ST is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 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 85°C, with a 5ms write cycle time. The part is currently in active product 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 compatibility in circuit applications.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K 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-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 25LC080CT-I/ST are classified into three functional groups based on allowed electrical and mechanical parameters:

Group 1: Direct Equivalents (Identical Specifications) Parts matching all critical parameters including 8Kbit capacity, SPI interface, 10 MHz clock frequency, 2.5V–5.5V supply voltage, -40°C to 85°C temperature range, and 8-TSSOP packaging. These parts provide pin-for-pin and functional compatibility without design modification.

Group 2: Enhanced Performance Substitutes (Higher Clock Frequency) Parts with 20 MHz clock frequency capability while maintaining 8Kbit capacity, SPI interface, 8-TSSOP packaging, and compatible supply voltage ranges. These parts operate at higher data rates and are backward compatible with 10 MHz applications.

Group 3: Extended Temperature and Automotive Grade Substitutes Parts qualified for automotive applications (AEC-Q100) with extended temperature ranges (-40°C to 125°C) and enhanced reliability specifications. These maintain core memory specifications while offering broader operational temperature coverage.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Supply Voltage	Temperature Range	Write Cycle Time	Package	Automotive Grade
25LC080CT-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
25LC080C-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
25AA080CT-I/ST	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
AT25080B-XHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
AT25080B-XHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
BR25H080FVT-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP	Yes (AEC-Q100)
CAT25080YI-GT3	onsemi	8Kbit	Not Specified	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
CAV25080YE-GT3	onsemi	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-TSSOP	Yes (AEC-Q100)
M95080-DFDW6TP	STMicroelectronics	8Kbit	20 MHz	1.7V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	No
M95080-DRDW3TP/K	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP	Yes (AEC-Q100)
M95080-DRDW8TP/K	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 105°C	4ms	8-TSSOP	Yes (AEC-Q100)

Engineering Selection Recommendations

For Direct Replacement (No Design Changes Required) Select 25LC080C-I/ST when identical specifications and Microchip Technology sourcing are required. This part maintains all electrical and thermal parameters of the primary part with alternative packaging (Tube vs. Tape & Reel).

For Enhanced Performance Applications Select AT25080B-XHL-T or AT25080B-XHL-B when 20 MHz clock frequency operation is beneficial. These parts support lower minimum supply voltage (1.8V) and maintain backward compatibility with 10 MHz system designs.

For Automotive and Extended Temperature Applications Select BR25H080FVT-2CE2, CAV25080YE-GT3, M95080-DRDW3TP/K, or M95080-DRDW8TP/K when AEC-Q100 automotive qualification and extended temperature range (-40°C to 125°C or -40°C to 105°C) are required. These parts are suitable for automotive-grade circuit implementations.

For Lowest Supply Voltage Operation Select 25AA080CT-I/ST or CAT25080YI-GT3 when minimum supply voltage of 1.8V is required, enabling operation in low-power applications.

All substitute parts maintain ROHS3 compliance and 8-TSSOP surface mount packaging compatibility with the primary part.

Frequently Asked Questions (FAQ)

Q: Can 25LC080C-I/ST replace 25LC080CT-I/ST in production? A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications, memory capacity, SPI interface, clock frequency, supply voltage range, and temperature range. The difference is packaging format (Tube vs. Tape & Reel). Verify packaging requirements for your assembly process.

Q: What is the advantage of selecting AT25080B-XHL-T over the primary part? A: AT25080B-XHL-T operates at 20 MHz clock frequency compared to 10 MHz, enabling higher data transfer rates. It also supports lower minimum supply voltage (1.8V vs. 2.5V). It remains backward compatible with 10 MHz system designs.

Q: Are automotive-grade parts (BR25H080FVT-2CE2, CAV25080YE-GT3, M95080-DRDW3TP/K) suitable for non-automotive applications? A: Yes. Automotive-grade parts with AEC-Q100 qualification exceed standard reliability requirements and extended temperature ranges. They are suitable for any application requiring enhanced reliability or operation beyond -40°C to 85°C.

Q: What is the difference between M95080-DRDW3TP/K and M95080-DRDW8TP/K? A: Both are STMicroelectronics automotive-grade parts with 20 MHz operation and 8Kbit capacity. M95080-DRDW3TP/K operates to 125°C maximum, while M95080-DRDW8TP/K operates to 105°C maximum. Select based on required upper temperature limit.

Q: Can CAT25080YI-GT3 be used as a direct substitute? A: CAT25080YI-GT3 is functionally compatible with matching 8Kbit capacity, SPI interface, and 8-TSSOP packaging. Clock frequency is not specified in available data. Verify clock frequency specification with onsemi documentation before selection for timing-critical applications.

Q: Is supply voltage range compatibility critical for substitution? A: Yes. Verify that the substitute part's supply voltage range encompasses your circuit's operating voltage. Parts with lower minimum voltage (1.8V) are compatible with 2.5V systems, but parts with higher minimum voltage (2.5V) are not suitable for 1.8V systems.

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