SST25VF080B-80-4I-S2AE Equivalent & Substitute Parts

Part Overview

The SST25VF080B-80-4I-S2AE is an 8Mbit SPI FLASH memory IC manufactured by Microchip Technology, housed in an 8-SOIC package. This device operates at 80 MHz clock frequency with a supply voltage range of 2.7V to 3.6V and supports operating temperatures from -40°C to 85°C. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Memory Size	8Mbit
Memory Organization	1M x 8
Memory Interface	SPI
Clock Frequency	80 MHz
Voltage Supply Range	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.209", 5.30mm Width)
Write Cycle Time	10µs
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the SST25VF080B-80-4I-S2AE is determined by the following critical parameters:

Memory Capacity: 8Mbit (1M x 8 organization)
Package Type: 8-SOIC form factor with identical 0.209" width and 5.30mm dimensions
Memory Interface: SPI protocol compatibility
Supply Voltage: 2.7V ~ 3.6V operating range
Operating Temperature Range: -40°C ~ 85°C
Compliance: ROHS3 and REACH requirements

The identified substitute parts maintain these core electrical and mechanical specifications. Variations in clock frequency and write cycle time do not preclude substitution when the application requirements permit operation at lower or equivalent performance levels.

Parameter Comparison

Parameter	SST25VF080B-80-4I-S2AE	SST25VF080B-50-4I-S2AE	SST25VF080B-50-4I-S2AF	W25Q80DVSSIG
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Winbond Electronics
Memory Size	8Mbit	8Mbit	8Mbit	8Mbit
Memory Organization	1M x 8	1M x 8	1M x 8	1M x 8
Memory Interface	SPI	SPI	SPI	SPI - Quad I/O
Clock Frequency	80 MHz	50 MHz	50 MHz	104 MHz
Write Cycle Time	10µs	10µs	10µs	3ms
Voltage Supply	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC	8-SOIC	8-SOIC	8-SOIC
Product Status	Obsolete	Active	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

SST25VF080B-50-4I-S2AE and SST25VF080B-50-4I-S2AF are direct Microchip Technology alternatives with active product status. Both maintain identical memory capacity, organization, SPI interface, supply voltage, and operating temperature specifications. The reduced clock frequency of 50 MHz versus the original 80 MHz represents a performance reduction that is acceptable in applications where maximum throughput is not a limiting factor. Both parts carry ROHS3 compliance and equivalent certifications.

W25Q80DVSSIG from Winbond Electronics provides an alternative from a different manufacturer. This device maintains the 8Mbit capacity, 1M x 8 organization, identical package, voltage range, and temperature specifications. The W25Q80DVSSIG supports SPI with Quad I/O capability and operates at 104 MHz, exceeding the original part's frequency. The write cycle time of 3ms differs from the 10µs specification of the original part. This device is active and ROHS3 compliant.

Selection should be based on application-specific requirements regarding clock frequency, write performance, and interface protocol support, with consideration for supply chain availability and cost factors.

Frequently Asked Questions (FAQ)

Q: Can SST25VF080B-50-4I-S2AE or SST25VF080B-50-4I-S2AF be used as direct replacements for SST25VF080B-80-4I-S2AE?

A: Yes. Both parts maintain identical memory capacity (8Mbit), organization (1M x 8), SPI interface, supply voltage (2.7V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and 8-SOIC package specifications. The 50 MHz clock frequency is lower than the original 80 MHz, which is acceptable for applications not requiring maximum throughput.

Q: Is the W25Q80DVSSIG compatible with the original SST25VF080B-80-4I-S2AE?

A: The W25Q80DVSSIG shares the same memory capacity, organization, package type, supply voltage, and operating temperature range. It operates at 104 MHz and supports SPI with Quad I/O capability. The write cycle time differs (3ms versus 10µs). Compatibility depends on whether the application can accommodate these performance characteristics and whether Quad I/O support is beneficial or neutral to the design.

Q: What is the significance of the 8-SOIC package specification?

A: The 8-SOIC package is a surface-mount form factor with standardized dimensions (0.209" width, 5.30mm). All substitute parts use this identical package, ensuring mechanical and electrical compatibility with existing PCB layouts and socket designs.

Q: Why is the original SST25VF080B-80-4I-S2AE marked as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Microchip Technology. The identified substitute parts with active status provide equivalent functionality and are available for new designs and ongoing system support.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The SST25VF080B-50-4I-S2AE, SST25VF080B-50-4I-S2AF, and W25Q80DVSSIG are all ROHS3 compliant, meeting environmental and regulatory requirements equivalent to the original part.

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