Equivalent & Substitute Parts for 25LC080B-I/ST

Part Overview

The 25LC080B-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 maintains functionality from -40°C to 85°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, manufacturing discontinuation, or specific performance enhancements while maintaining core 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 Type	8-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 25LC080B-I/ST is determined by strict adherence to the following critical parameters:

Core Compatibility Requirements:

Memory capacity: 8Kbit (1K x 8 organization)
Interface protocol: SPI
Package form factor: 8-TSSOP (0.173", 4.40mm Width)
Mounting technology: Surface Mount
Environmental compliance: ROHS3 Compliant

Performance Variation Parameters:

Clock frequency: 10 MHz (baseline) to 20 MHz (enhanced)
Supply voltage range: 2.5V ~ 5.5V (baseline) to 1.8V ~ 5.5V (extended low voltage)
Operating temperature: -40°C ~ 85°C (baseline) to -40°C ~ 125°C (extended high temperature)
Write cycle time: 5ms (baseline) to 4ms (improved)

Substitute parts maintain identical memory specifications and package geometry while offering optional performance enhancements in clock speed, voltage tolerance, temperature range, or write performance. All substitutes retain SPI interface compatibility and surface mount 8-TSSOP packaging.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temp	Write Cycle	Package	Inventory
25LC080B-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	1114 Pcs
25AA080C-I/ST	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	3205 Pcs
25LC080A-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	10095 Pcs
25LC080C-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	1208 Pcs
25LC080D-I/ST	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	1666 Pcs
AT25080B-XHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	6000 Pcs
BR25H080FVT-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP	2855 Pcs
CAT25080YI-GT3	onsemi	8Kbit	Not Specified	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	7841 Pcs
CAV25080YE-GT3	onsemi	8Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-TSSOP	6850 Pcs
M95080-DFDW6TP	STMicroelectronics	8Kbit	20 MHz	1.7V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	785 Pcs
M95080-DRDW3TP/K	STMicroelectronics	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP	4300 Pcs

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications): The 25LC080A-I/ST and 25LC080C-I/ST from Microchip Technology provide direct functional equivalence to the 25LC080B-I/ST with identical electrical and thermal specifications. Both maintain ROHS3 compliance and unlimited moisture sensitivity rating. The 25LC080A-I/ST offers significantly higher inventory availability (10095 Pcs) compared to the reference part.

Extended Voltage Range Substitutes: The 25AA080C-I/ST extends the minimum supply voltage to 1.8V while maintaining all other specifications identical to the reference part. This variant is suitable for applications requiring lower voltage operation within the same thermal and performance envelope.

Enhanced Performance Variants: The AT25080B-XHL-B, CAV25080YE-GT3, and M95080-DRDW3TP/K offer doubled clock frequency (20 MHz) with extended operating temperature range to 125°C. These parts are qualified to AEC-Q100 automotive standards where applicable and provide improved write cycle performance (4ms). The M95080-DRDW3TP/K additionally extends minimum supply voltage to 1.8V.

Cross-Manufacturer Alternatives: The BR25H080FVT-2CE2 from Rohm Semiconductor and CAT25080YI-GT3 from onsemi maintain core 8Kbit SPI EEPROM functionality in 8-TSSOP packaging with ROHS3 compliance. The Rohm part includes AEC-Q100 automotive qualification with improved write cycle time (4ms) and extended temperature range (-40°C ~ 125°C).

Inventory Considerations: Selection should account for current stock availability. The 25LC080A-I/ST (10095 Pcs), AT25080B-XHL-B (6000 Pcs), CAV25080YE-GT3 (6850 Pcs), and CAT25080YI-GT3 (7841 Pcs) offer substantial inventory depth for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can 25LC080A-I/ST directly replace 25LC080B-I/ST in existing designs?

A: Yes. The 25LC080A-I/ST maintains identical memory capacity (8Kbit), SPI interface, clock frequency (10 MHz), supply voltage range (2.5V ~ 5.5V), operating temperature (-40°C ~ 85°C), write cycle time (5ms), and 8-TSSOP package geometry. No design modifications are required.

Q: What is the advantage of selecting AT25080B-XHL-B or M95080-DRDW3TP/K?

A: These parts provide doubled clock frequency (20 MHz) enabling faster data transfer rates. The M95080-DRDW3TP/K additionally supports extended operating temperature to 125°C and reduced minimum supply voltage to 1.8V. Both include improved write cycle performance (4ms). Selection depends on whether the application requires these enhanced specifications.

Q: Are cross-manufacturer parts (Rohm, onsemi, STMicroelectronics) pin-compatible with Microchip devices?

A: All substitute parts maintain identical 8-TSSOP package geometry (0.173", 4.40mm Width) and SPI interface protocol. Pin-level compatibility is ensured by the standardized 8-TSSOP form factor and SPI communication standard. Functional substitution is valid across manufacturers.

Q: Does extended voltage range (1.8V minimum) affect circuit design?

A: Parts with extended voltage range (25AA080C-I/ST, AT25080B-XHL-B, CAT25080YI-GT3, M95080-DFDW6TP, M95080-DRDW3TP/K) are backward compatible with designs operating at 2.5V or higher. They provide additional flexibility for low-power applications but require no design changes for existing 2.5V ~ 5.5V systems.

Q: What does AEC-Q100 qualification indicate?

A: AEC-Q100 qualification (BR25H080FVT-2CE2, CAV25080YE-GT3, M95080-DRDW3TP/K) certifies automotive-grade reliability and environmental stress testing. These parts are suitable for automotive and industrial applications requiring enhanced reliability standards.

Q: How does write cycle time affect application performance?

A: Write cycle time (4ms vs 5ms) determines the duration required to complete a single page write operation. The 4ms variants (BR25H080FVT-2CE2, M95080-DRDW3TP/K) provide 20% faster write performance. Selection depends on application timing requirements for memory programming operations.

Q: Is moisture sensitivity level (MSL) a critical selection factor?

A: All listed parts maintain MSL 1 (unlimited shelf life) or MSL 3 (168 hours) ratings. For standard commercial applications, MSL 1 parts (all except AT25080B-XHL-B which specifies MSL 3) provide indefinite storage without moisture bake-out requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message