Equivalent & Substitute Parts for 25LC080DT-I/ST

Part Overview

The 25LC080DT-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 ROHS3 compliant and currently in active production status with 1057 units in stock.

Equivalent and substitute parts are identified based on matching core electrical parameters: 8Kbit memory capacity, 1K x 8 organization, SPI interface protocol, 8-TSSOP package form factor, and compatible operating temperature ranges. Substitutes may vary in clock frequency, supply voltage range, and packaging format while maintaining functional compatibility.

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 / Case	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Primary Matching Criteria:

Memory capacity: 8Kbit
Memory organization: 1K x 8
Interface protocol: SPI
Package type: 8-TSSOP
Mounting: Surface Mount

Secondary Compatibility Parameters:

Clock frequency: 10 MHz or higher (backward compatible)
Supply voltage range: Must encompass or exceed 2.5V ~ 5.5V minimum requirement
Operating temperature: Must support -40°C ~ 85°C minimum range
Write cycle time: 5ms or faster

Substitute parts are grouped into three categories based on parameter alignment with the 25LC080DT-I/ST:

Category 1 - Direct Electrical Equivalents (10 MHz operation): Parts maintaining 10 MHz clock frequency with compatible voltage and temperature specifications.

Category 2 - Enhanced Performance Substitutes (20 MHz operation): Parts with doubled clock frequency, providing backward compatibility while enabling higher-speed applications.

Category 3 - Automotive-Grade Alternatives: Parts qualified to AEC-Q100 automotive standards with extended temperature ranges (-40°C ~ 125°C) and enhanced reliability certifications.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Write Cycle Time	Package	Packaging Format	Inventory
25LC080DT-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Tape & Reel	1057
25LC080D-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Tube	1666
25AA080CT-I/ST	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Tape & Reel	8216
AT25080B-XHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Tube	6000
AT25080B-XHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Cut Tape & Digi-Reel	6854
M95080-WDW6TP	STMicroelectronics	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Cut Tape & Digi-Reel	10093
BR25H080FVT-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP	Tape & Reel	2855
CAT25080YI-GT3	onsemi	8Kbit	Not Specified	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Tape & Reel	7841
CAV25080YE-GT3	onsemi	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-TSSOP	Tape & Reel	6850
M95080-DFDW6TP	STMicroelectronics	8Kbit	20 MHz	1.7V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	Tape & Reel	785
M95080-DRDW3TP/K	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP	Tape & Reel	4300

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Performance): The 25LC080D-I/ST provides functional equivalence with identical electrical specifications. The primary difference is packaging format (Tube versus Tape & Reel). Selection depends on assembly process requirements and volume considerations.

For Enhanced Clock Frequency Applications: Parts operating at 20 MHz (AT25080B-XHL-B, AT25080B-XHL-T, M95080-WDW6TP, CAV25080YE-GT3, M95080-DFDW6TP, M95080-DRDW3TP/K) provide backward compatibility with 10 MHz designs while enabling higher-speed SPI communication. These substitutes maintain the same memory capacity and organization, requiring no firmware modifications for basic operation.

For Extended Temperature Range Applications: BR25H080FVT-2CE2, CAV25080YE-GT3, and M95080-DRDW3TP/K support operating temperatures to 125°C and carry AEC-Q100 automotive qualification. These parts are suitable for automotive and industrial applications requiring enhanced thermal performance.

For Low-Voltage Supply Applications: 25AA080CT-I/ST, AT25080B-XHL-B, AT25080B-XHL-T, CAT25080YI-GT3, M95080-DFDW6TP, and M95080-DRDW3TP/K support supply voltages as low as 1.8V or 1.7V, enabling operation in battery-powered and low-power embedded systems.

For Verified Programmability: M95080-WDW6TP is the only substitute with verified DiGi-Electronics programmability status, providing documented compatibility with standard programming equipment.

Frequently Asked Questions (FAQ)

Q: Can I use a 20 MHz substitute part in a design specified for 10 MHz operation?

A: Yes. The 20 MHz parts (AT25080B-XHL-B, AT25080B-XHL-T, M95080-WDW6TP, CAV25080YE-GT3, M95080-DFDW6TP, M95080-DRDW3TP/K) are backward compatible with 10 MHz designs. The SPI interface operates at the clock frequency set by the host controller, so a 20 MHz-capable device functions correctly when clocked at 10 MHz or lower.

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

A: Tape & Reel packaging is optimized for automated assembly lines with pick-and-place equipment. Tube packaging is suitable for manual assembly or lower-volume production. Both formats contain identical components; the selection depends on manufacturing process requirements.

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

A: Yes. Automotive-qualified parts (BR25H080FVT-2CE2, CAV25080YE-GT3, M95080-DRDW3TP/K) meet stringent reliability and temperature specifications that exceed standard industrial requirements. They are fully compatible with non-automotive designs and provide enhanced reliability margins.

Q: Which substitute offers the lowest minimum supply voltage?

A: M95080-DFDW6TP supports a minimum supply voltage of 1.7V, the lowest among all listed substitutes. This part is optimal for ultra-low-power applications. M95080-DRDW3TP/K and other parts support 1.8V minimum, also suitable for low-power designs.

Q: Can I mix different manufacturers' parts in the same design?

A: Yes. All listed substitutes maintain identical memory capacity (8Kbit), organization (1K x 8), interface protocol (SPI), and package form factor (8-TSSOP). They are electrically and mechanically interchangeable within the specified parameter ranges. Verify supply voltage and temperature range compatibility with your specific application requirements.

Q: What is the significance of the write cycle time difference (4ms versus 5ms)?

A: Write cycle time indicates the duration required to complete a single write operation. Parts with 4ms write cycle time (BR25H080FVT-2CE2, M95080-DRDW3TP/K) complete write operations faster than 5ms parts. This difference is relevant only in applications requiring rapid sequential write operations. For most standard applications, both specifications are functionally equivalent.

Q: Is the 25AA080CT-I/ST compatible with the original 25LC080DT-I/ST?

A: Yes. The 25AA080CT-I/ST is functionally compatible. Both parts share identical memory capacity, organization, interface, and package specifications. The 25AA080CT-I/ST supports a lower minimum supply voltage (1.8V versus 2.5V) and offers higher inventory availability (8216 units), making it a suitable alternative for designs with flexible voltage requirements.

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