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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology SST25VF080B-80-4I-SAE-T

Name: SST25VF080B-80-4I-SAE-T
Brand: Microchip Technology
SKU: SST25VF080B-80-4I-SAE-T
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SST25VF080B-80-4I-SAE-T

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-SOIC (0.154", 3.90mm Width)

Datasheet:: SST25VF080B-80-4I-SAE-T.pdf

Description:: IC FLASH 8MBIT SPI 80MHZ 8SOIC

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Product details

Overview

SST25VF080B-80-4I-SAE-T from Microchip Technology is an 8 Mbit SPI serial flash memory IC designed for embedded firmware storage and code execution in resource-constrained systems. It operates at 2.7–3.6 V, supports 80 MHz high-speed read via SPI Mode 0/3, delivers 10 mA active read current, and features uniform 4 KByte sectors with 100,000-program/erase endurance - deployed in industrial control panels requiring reliable boot code retention.

For engineers reviewing the SST25VF080B-80-4I-SAE-T datasheet, SST25VF080B-80-4I-SAE-T pinout, SST25VF080B-80-4I-SAE-T application, or SST25VF080B-80-4I-SAE-T equivalent, key selection criteria include its industrial temperature range (−40°C to +85°C), hardware/software write protection, Auto Address Increment programming, and SOIC-200-mil package compatibility with legacy PCB layouts.

Technical Context

The SST25VF080B-80-4I-SAE-T implements a four-wire SPI interface (SCK, SI, SO, CE#) with dual-mode clocking (Mode 0 and Mode 3), enabling interoperability with diverse microcontroller host interfaces. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling to achieve faster erase times (18 ms sector-erase) and lower total energy per operation versus conventional NOR flash.

It integrates dedicated control pins - HOLD# for pausing ongoing transfers without deselecting, and WP# for enabling status register lock-down - alongside a software-configurable status register (BUSY, WEL, BP0–BP3, BPL, AAI bits) that governs block protection granularity and programming mode state.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	8 Mbit (1 MByte) organized as uniform 4 KByte sectors, 32 KByte and 64 KByte overlay blocks - enables fine-grained firmware updates without full chip erase.
Max Clock Frequency	80 MHz for High-Speed Read (0BH command with dummy byte) - reduces boot time and data fetch latency in real-time applications.
Supply Voltage	2.7–3.6 V single supply - compatible with 3.3 V logic domains and eliminates need for level shifters in most MCU designs.
Endurance & Retention	100,000 program/erase cycles typical; >100 years data retention - suitable for field-upgradable devices with infrequent but critical firmware patches.
Active/Standby Current	10 mA typical active read current; 5 µA typical standby current - extends battery life in always-on industrial sensors and edge nodes.
Erase/Program Times	Chip-erase: 35 ms; sector/block-erase: 18 ms; byte-program: 7 µs - accelerates manufacturing programming and field recovery sequences.
Temperature Range	Industrial: −40°C to +85°C - validated for operation in motor drives, PLC modules, and outdoor telemetry units.

Pinout & Package

Package: 8-lead SOIC (200 mils), RoHS-compliant, surface-mountable with standard reflow profile.

Pin/Terminal	Circuit Role	Design Meaning
CE#	Chip Enable	Active-low device select; must remain low throughout command sequence - enables multi-device SPI daisy-chaining with independent addressing.
SO	Serial Data Output	Tri-state output shifting data on SCK falling edge; reconfigurable as RY/BY# during AAI programming - supports hardware busy polling without CPU intervention.
WP#	Write Protect	Hardware enable for status register lock-down (BPL bit); when low, prevents modification of BP0–BP3 unless BPL=0 - provides tamper-resistant firmware partitioning.
HOLD#	Hold	Pauses ongoing SPI transfer while maintaining internal address pointer - allows host MCU to service interrupts without losing flash context.
SCK	Serial Clock	Timing reference for SI/SO; rising edge latches input, falling edge clocks output - supports both SPI Mode 0 (idle low) and Mode 3 (idle high).
SI	Serial Data Input	Command, address, and data input path synchronized to SCK rising edge - accepts all instructions including WREN, AAI, and block-erase opcodes.
VDD	Power Supply	2.7–3.6 V core and I/O supply - decoupling capacitor placement near this pin is critical for stable high-frequency read performance.
VSS	Ground	Reference return path for all signals and power - requires low-impedance connection to minimize noise coupling into SO/SI lines.

Key Features

Feature	Design Value
Auto Address Increment (AAI) Programming	Reduces sequential byte-program time by eliminating repeated address transmission - cuts full-array programming duration by up to 40% vs. standard byte-program mode.
Flexible Block Protection	Software-configurable BP0–BP3 bits protect 1/16 to full array; BPL lock-down prevents accidental overwrite of protection settings - enforces secure bootloader partitioning.
Hardware End-of-Write Detection	SO pin outputs RY/BY# status during AAI programming after EBSY (70H) command - removes software polling overhead and improves deterministic timing in safety-critical tasks.
Uniform Erase Architecture	Independent 4 KByte sector, 32 KByte block, and 64 KByte block erase commands - enables selective firmware module updates without disturbing configuration or calibration data.
Low-Power Standby Mode	5 µA typical current draw in CE#-high state - meets energy budget requirements for battery-backed IoT gateways operating in sleep-wake cycles.

Applications

Industrial PLC Firmware Storage	Medical Device Bootloader Memory
Use Scenario: Storing certified bootloader and application firmware in DIN-rail mounted programmable logic controllers subject to vibration and wide ambient temperature swings. IC Role / Device Role / Timing Role: Non-volatile code storage with deterministic 80 MHz read access and hardware write protection to prevent runtime corruption. Use Value: Ensures fail-safe boot integrity across 100,000+ power cycles and maintains data retention beyond product lifetime in uncontrolled environments.	Use Scenario: Holding FDA-compliant boot firmware and calibration tables in portable diagnostic equipment requiring traceable, immutable storage. IC Role / Device Role / Timing Role: Secure, low-power SPI flash with lock-down enabled BP bits to enforce read-only execution of certified code segments. Use Value: Meets IEC 62304 software lifecycle requirements by preventing unauthorized modification of safety-critical firmware partitions.
Automotive Infotainment Update Cache	Smart Energy Meter Firmware Vault
Use Scenario: Caching over-the-air (OTA) firmware updates in head-unit ECUs before validation and installation, operating within automotive temperature and EMC constraints. IC Role / Device Role / Timing Role: High-reliability serial flash with 80 MHz read speed and AAI programming to accelerate update staging under strict timing deadlines. Use Value: Reduces OTA update window by minimizing flash programming latency, supporting AEC-Q100-compliant system-level qualification.	Use Scenario: Storing metrology firmware, tariff tables, and cryptographic keys in ANSI C12.22-compliant utility meters deployed in outdoor enclosures. IC Role / Device Role / Timing Role: Industrial-grade SPI flash with >100-year data retention and hardware WP#/HOLD# for robust field operation under thermal cycling. Use Value: Eliminates periodic firmware refresh maintenance and guarantees long-term accuracy compliance without field service intervention.

Industrial PLC Firmware Storage

Medical Device Bootloader Memory

Use Scenario: Storing certified bootloader and application firmware in DIN-rail mounted programmable logic controllers subject to vibration and wide ambient temperature swings.

IC Role / Device Role / Timing Role: Non-volatile code storage with deterministic 80 MHz read access and hardware write protection to prevent runtime corruption.

Use Value: Ensures fail-safe boot integrity across 100,000+ power cycles and maintains data retention beyond product lifetime in uncontrolled environments.

Use Scenario: Holding FDA-compliant boot firmware and calibration tables in portable diagnostic equipment requiring traceable, immutable storage.

IC Role / Device Role / Timing Role: Secure, low-power SPI flash with lock-down enabled BP bits to enforce read-only execution of certified code segments.

Use Value: Meets IEC 62304 software lifecycle requirements by preventing unauthorized modification of safety-critical firmware partitions.

Automotive Infotainment Update Cache

Smart Energy Meter Firmware Vault

Use Scenario: Caching over-the-air (OTA) firmware updates in head-unit ECUs before validation and installation, operating within automotive temperature and EMC constraints.

IC Role / Device Role / Timing Role: High-reliability serial flash with 80 MHz read speed and AAI programming to accelerate update staging under strict timing deadlines.

Use Value: Reduces OTA update window by minimizing flash programming latency, supporting AEC-Q100-compliant system-level qualification.

Use Scenario: Storing metrology firmware, tariff tables, and cryptographic keys in ANSI C12.22-compliant utility meters deployed in outdoor enclosures.

IC Role / Device Role / Timing Role: Industrial-grade SPI flash with >100-year data retention and hardware WP#/HOLD# for robust field operation under thermal cycling.

Use Value: Eliminates periodic firmware refresh maintenance and guarantees long-term accuracy compliance without field service intervention.

Equivalent & Alternatives

The following parts are listed as comparable options for similar SPI serial flash memory applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
Winbond W25Q80DVSSIG	8 Mbit, 104 MHz max read, quad-SPI capable, 2.7–3.6 V, SOIC-200-mil - adds QSPI support but lacks HOLD# pin and AAI programming.	Preferred where higher throughput is needed via quad I/O, but not suitable for legacy designs relying on HOLD#-based interrupt handling.	Select W25Q80DVSSIG only if migrating to QSPI interface and redesigning driver stack; retains same footprint but requires firmware changes.
Micron MT25QL80ABB8E12-0SIT	8 Mbit, 133 MHz max read, 1.8/3.0 V dual supply, SOIC-200-mil - supports lower voltage operation and deeper power-down modes, no AAI mode.	Better suited for ultra-low-power battery systems, but incompatible with 2.7 V minimum requirement of SST25VF080B-80-4I-SAE-T designs.	Choose MT25QL80ABB8E12-0SIT only when migrating to 1.8 V domain and accepting loss of AAI acceleration and HOLD# functionality.

Compared with W25Q80DVSSIG and MT25QL80ABB8E12-0SIT, the SST25VF080B-80-4I-SAE-T uniquely combines industrial temperature rating, HOLD# pin support, and AAI programming in a pin-compatible SOIC-200-mil package - making it irreplaceable in legacy designs requiring deterministic interrupt-latency control and fast sequential writes without layout change.

Availability

SST25VF080B-80-4I-SAE-T is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and smart metering applications requiring stable component supply across extended product lifecycles.

Supply support for SST25VF080B-80-4I-SAE-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Microchip Technology is a global semiconductor company delivering microcontrollers, analog components, and memory solutions with emphasis on reliability and long-term support.

The SST25VF080B-80-4I-SAE-T belongs to Microchip's legacy Serial Flash product line, engineered specifically for cost-sensitive, space-constrained embedded systems needing robust firmware storage with industrial-grade endurance and temperature tolerance.

FAQ

What is the maximum clock frequency supported by SST25VF080B-80-4I-SAE-T for high-speed read operations?

The SST25VF080B-80-4I-SAE-T supports up to 80 MHz for High-Speed Read operations using the 0BH instruction with a dummy byte. This specification applies exclusively to the "-80" speed grade variant, as confirmed in Table 14 of the DS25045A datasheet. The device maintains signal integrity at this rate under industrial temperature conditions when properly decoupled and routed.

Does SST25VF080B-80-4I-SAE-T support SPI Mode 3, and how does it differ from Mode 0 in practice?

Yes, SST25VF080B-80-4I-SAE-T supports both SPI Mode 0 and Mode 3. In Mode 0, SCK idles low and data is sampled on the rising edge; in Mode 3, SCK idles high with identical sampling timing. The choice depends on host controller compatibility - Mode 3 is required when interfacing with certain ARM Cortex-M peripherals that default to idle-high clock polarity.

How does the HOLD# pin function during an active SPI transaction with SST25VF080B-80-4I-SAE-T?

The HOLD# pin suspends an ongoing SPI sequence without resetting internal state: when asserted low during CE#-active operation, it places SO in high-impedance while preserving the address pointer and command context. Communication resumes upon deasserting HOLD# while CE# remains low - enabling host MCUs to service time-critical interrupts without losing flash transaction state.

Can SST25VF080B-80-4I-SAE-T be used in systems requiring data retention beyond 10 years?

Yes. The SST25VF080B-80-4I-SAE-T guarantees greater than 100 years of data retention under industrial temperature conditions (−40°C to +85°C), as specified in the DS25045A datasheet. This exceeds typical 10-year requirements for infrastructure equipment, making it suitable for applications like utility meter firmware vaults and avionics configuration storage.

What write protection mechanisms are implemented in SST25VF080B-80-4I-SAE-T?

The SST25VF080B-80-4I-SAE-T implements three-tiered write protection: (1) hardware WP# pin enabling BPL lock-down, (2) software-configurable BP0–BP3 bits for granular memory region protection, and (3) status register write-enable latch (WEL) requiring WREN instruction before any write. These layers collectively prevent accidental or malicious firmware corruption during field operation.

SST25VF080B-80-4I-SAE-T Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: SST25

Package/Case:: 8-SOIC (0.154", 3.90mm Width)

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH

Memory Size:: 8Mbit

Memory Organization:: 1M x 8

Memory Interface:: SPI

Clock Frequency:: 80 MHz

Write Cycle Time - Word, Page:: 10µs

Access Time:: -

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-SOIC

SST25VF080B-80-4I-SAE-T FAQ

1.How can I place an order for SST25VF080B-80-4I-SAE-T through Aetrix?

Please submit a Request for Quotation (RFQ) for SST25VF080B-80-4I-SAE-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for SST25VF080B-80-4I-SAE-T reliable?

The price and inventory of SST25VF080B-80-4I-SAE-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF080B-80-4I-SAE-T is usually 5 days.

3.What payment methods are accepted for SST25VF080B-80-4I-SAE-T?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF080B-80-4I-SAE-T transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SST25VF080B-80-4I-SAE-T?

SST25VF080B-80-4I-SAE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SST25VF080B-80-4I-SAE-T order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for SST25VF080B-80-4I-SAE-T?

For technical support, including SST25VF080B-80-4I-SAE-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF080B-80-4I-SAE-T requirements.

6.How does Aetrix verify that SST25VF080B-80-4I-SAE-T is sourced from the original manufacturer or authorized distributors?

All SST25VF080B-80-4I-SAE-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that SST25VF080B-80-4I-SAE-T meets industry standards.

7.What is the process for return or replacement of SST25VF080B-80-4I-SAE-T?

All SST25VF080B-80-4I-SAE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF080B-80-4I-SAE-T, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The SST25VF080B-80-4I-SAE-T part is unused and in its original packaging.

Return procedure for SST25VF080B-80-4I-SAE-T:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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