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

Microchip Technology SST25PF080B-80-4C-QAE

Name: SST25PF080B-80-4C-QAE
Brand: Microchip Technology
SKU: SST25PF080B-80-4C-QAE
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: SST25PF080B-80-4C-QAE

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-WDFN Exposed Pad

Datasheet:: SST25PF080B-80-4C-QAE.pdf

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

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Product details

Overview

SST25PF080B-80-4C-QAE 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 from a single 2.3–3.6 V supply, supports 80 MHz read speed (at 2.7–3.6 V), features uniform 4 KByte sectors and 64 KByte overlay blocks, and delivers 100,000 program/erase cycles with >100 years data retention - deployed in industrial control modules requiring reliable, low-power nonvolatile storage.

For engineers reviewing the SST25PF080B-80-4C-QAE datasheet, SST25PF080B-80-4C-QAE pinout, SST25PF080B-80-4C-QAE application, or SST25PF080B-80-4C-QAE equivalent, key selection considerations include its SOIC-8 (200 mil) package, SPI Mode 0/3 compatibility, hardware hold/resume capability via HOLD#, software write protection with BP2–BP0 bits, and AAI programming for accelerated sequential writes.

Technical Context

The SST25PF080B-80-4C-QAE implements a four-wire SPI interface with dual-mode clock polarity support (Mode 0 and Mode 3), enabling interoperability with diverse host controllers. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling injectors to achieve faster erase times (18 ms sector-erase, 35 ms chip-erase) and lower active current (10 mA typical) versus conventional NOR flash.

It integrates a programmable 256-bit Security ID with factory-programmed 64-bit segment and user-programmable 192-bit segment, plus hardware-level end-of-write detection via SO pin reconfiguration (EBSY/DBSY commands) during Auto Address Increment programming - supporting secure, deterministic firmware update workflows without polling overhead.

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 granular firmware partitioning and OTA update management.
Supply Voltage	2.3–3.6 V single supply - compatible with 2.5 V and 3.3 V system rails without level-shifting.
Max Read Speed	80 MHz (2.7–3.6 V); 50 MHz (2.3–2.7 V) - supports high-throughput boot code fetch and real-time data logging.
Endurance & Retention	100,000 program/erase cycles (typical); >100 years data retention - suitable for field-deployed devices with infrequent but critical updates.
Active/Standby Current	10 mA typical read current; 5 μA typical standby current - minimizes power budget impact in always-on edge nodes.
Erase/Program Times	Sector-/block-erase: 18 ms typ.; chip-erase: 35 ms typ.; byte-program: 7 μs typ. - reduces firmware update latency and improves system responsiveness.
Operating Temp	0°C to +70°C (Commercial grade) - validated for indoor industrial and consumer electronics environments.

Pinout & Package

Package: 8-lead SOIC (200 mil), 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 sequences - enables multi-device SPI bus sharing with daisy-chained or decoded addressing.
SO	Serial Data Output	Drives read data on falling SCK edge; reconfigurable as RY/BY# status output during AAI programming - eliminates software polling for write completion.
WP#	Write Protect	Hardware-enable for status register lock-down (BPL bit); when low, restricts modification of BP2–BP0 protection bits - provides physical layer security against accidental writes.
HOLD#	Hold	Suspends ongoing SPI transaction without deselecting device or resetting clock state - allows host CPU to service interrupts mid-sequence without data loss or re-synchronization.
SCK	Serial Clock	Provides timing reference; sampled on rising edge for input, drives output on falling edge - supports both SPI Mode 0 (SCK idle low) and Mode 3 (SCK idle high).
SI	Serial Data Input	Accepts commands, addresses, and data on rising SCK edge - handles all instruction opcodes (e.g., 03H Read, 02H Byte-Program, ADH AAI) and address/data payloads.
VDD	Power Supply	2.3–3.6 V supply input - powers internal charge pumps and logic; decoupling capacitor required per layout guidelines.
VSS	Ground	Reference return path for all I/O and core circuitry - requires low-impedance connection to system ground plane.

Key Features

Feature	Design Value
Auto Address Increment (AAI) Programming	Reduces total programming time by eliminating repeated address transmission for sequential writes - critical for fast firmware patching and configuration loading.
Hardware End-of-Write Detection (SO as RY/BY#)	Offloads busy-wait polling to hardware via SO pin status signaling during AAI - frees host CPU cycles and simplifies real-time interrupt handling.
Flexible Block Protection Scheme	Software-configurable BP2–BP0 bits enable selective write-protection of upper 1/16 to full 8 Mbit array - supports secure bootloader + application partitioning.
256-bit Security ID with Factory Segment	64-bit unchangeable factory ID + 192-bit user-programmable space - enables device authentication, license binding, and anti-cloning in certified deployments.
Hold Function with No State Reset	Pauses SPI communication while preserving internal address pointer and command context - ensures deterministic resume after host interrupt servicing.

Applications

Firmware Storage in PLC Modules	Secure Boot Code in Medical Devices
Use Scenario: Storing and executing boot firmware and configuration parameters in programmable logic controllers operating in factory-floor environments with EMI and thermal cycling. IC Role / Device Role / Timing Role: Nonvolatile code storage and execution source; provides deterministic 80 MHz read access with <100 ns address-to-data timing. Use Value: 100,000-cycle endurance and >100-year retention ensure long-term reliability without field replacement; HOLD# enables seamless interrupt response during firmware validation.	Use Scenario: Hosting signed bootloader images and cryptographic keys in Class II medical instruments requiring FDA-compliant traceability and tamper resistance. IC Role / Device Role / Timing Role: Secure firmware vault; leverages factory-programmed Security ID segment for unique device identity and locked user segment for key binding. Use Value: WP#-enabled BPL bit prevents runtime corruption of protection bits; software block protection isolates bootloader region from application updates.
OTA Update Buffer in Smart Meters	Configuration Storage in Industrial Gateways
Use Scenario: Acting as dual-bank update buffer for over-the-air firmware upgrades in ANSI C12.19-compliant smart electricity meters with limited RAM and strict power budgets. IC Role / Device Role / Timing Role: High-efficiency sequential write target using AAI mode; supports fast 7 μs byte-program and 18 ms sector-erase for atomic patch application. Use Value: 5 μA standby current extends battery life during idle periods; uniform 4 KByte sectors align with meter firmware partitioning standards.	Use Scenario: Persisting network stack settings, certificate stores, and calibration data in DIN-rail-mounted industrial Ethernet gateways exposed to wide temperature swings. IC Role / Device Role / Timing Role: Robust parameter storage with hardware-assisted write verification; HOLD# preserves SPI state during watchdog-triggered recovery sequences. Use Value: 0°C to +70°C operation covers extended commercial range; SO-as-RY/BY# eliminates polling delays in time-critical configuration reloads.

Firmware Storage in PLC Modules

Secure Boot Code in Medical Devices

Use Scenario: Storing and executing boot firmware and configuration parameters in programmable logic controllers operating in factory-floor environments with EMI and thermal cycling.

IC Role / Device Role / Timing Role: Nonvolatile code storage and execution source; provides deterministic 80 MHz read access with <100 ns address-to-data timing.

Use Value: 100,000-cycle endurance and >100-year retention ensure long-term reliability without field replacement; HOLD# enables seamless interrupt response during firmware validation.

Use Scenario: Hosting signed bootloader images and cryptographic keys in Class II medical instruments requiring FDA-compliant traceability and tamper resistance.

IC Role / Device Role / Timing Role: Secure firmware vault; leverages factory-programmed Security ID segment for unique device identity and locked user segment for key binding.

Use Value: WP#-enabled BPL bit prevents runtime corruption of protection bits; software block protection isolates bootloader region from application updates.

OTA Update Buffer in Smart Meters

Configuration Storage in Industrial Gateways

Use Scenario: Acting as dual-bank update buffer for over-the-air firmware upgrades in ANSI C12.19-compliant smart electricity meters with limited RAM and strict power budgets.

IC Role / Device Role / Timing Role: High-efficiency sequential write target using AAI mode; supports fast 7 μs byte-program and 18 ms sector-erase for atomic patch application.

Use Value: 5 μA standby current extends battery life during idle periods; uniform 4 KByte sectors align with meter firmware partitioning standards.

Use Scenario: Persisting network stack settings, certificate stores, and calibration data in DIN-rail-mounted industrial Ethernet gateways exposed to wide temperature swings.

IC Role / Device Role / Timing Role: Robust parameter storage with hardware-assisted write verification; HOLD# preserves SPI state during watchdog-triggered recovery sequences.

Use Value: 0°C to +70°C operation covers extended commercial range; SO-as-RY/BY# eliminates polling delays in time-critical configuration reloads.

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
SST25VF080B	Direct successor; identical pinout, same 8 Mbit density and SOIC-8 (200 mil) package, but improved 100 kHz–80 MHz frequency range and updated qualification.	Recommended for new designs; obsoletes SST25PF080B per Microchip documentation.	Select SST25VF080B for production ramp or long-term availability; SST25PF080B remains viable for legacy repair or existing BOM continuity.
AT25DF081A-SSH-T	8 Mbit SPI flash in 8-lead SOIC; supports 85 MHz max read, but lacks AAI programming and hardware RY/BY# on SO pin.	Better raw speed, but requires software polling for write completion and offers no hold-resume capability.	Choose only if higher read bandwidth is prioritized over deterministic write control and interrupt-safe SPI operation.

Compared with SST25VF080B, the SST25PF080B-80-4C-QAE offers identical functionality but lacks newer qualification and extended frequency margin; versus AT25DF081A-SSH-T, it trades peak speed for superior write-control features (AAI, HOLD#, hardware status) essential for deterministic embedded firmware operations.

Availability

SST25PF080B-80-4C-QAE is available at Aetrix Electronics and suitable for industrial control systems, medical instrumentation, smart metering infrastructure, and industrial gateway platforms requiring stable component supply across extended product lifecycles.

Supply support for SST25PF080B-80-4C-QAE 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 specializing in microcontrollers, analog components, and memory solutions for embedded applications.

The SST25PF080B-80-4C-QAE belongs to Microchip's 25 series Serial Flash family, engineered for cost-sensitive, space-constrained embedded systems needing reliable, low-power nonvolatile storage with robust SPI interface features.

FAQ

What is the maximum clock frequency supported by SST25PF080B-80-4C-QAE during read operations?

The SST25PF080B-80-4C-QAE supports up to 80 MHz read speed when operating within the 2.7–3.6 V supply range, and 50 MHz when supplied from 2.3–2.7 V. This dual-voltage frequency scaling is explicitly defined in the official Microchip datasheet DS20005137B and applies directly to the SST25PF080B-80-4C-QAE variant in its 8-lead SOIC (200 mil) package.

Does SST25PF080B-80-4C-QAE support SPI Mode 0 and Mode 3 simultaneously?

Yes, the SST25PF080B-80-4C-QAE natively supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) without hardware modification. The device detects the idle state of SCK and samples SI on the rising edge while driving SO on the falling edge in either mode - a key interoperability feature confirmed in Section 4.0 of DS20005137B for SST25PF080B-80-4C-QAE.

How does the HOLD# pin function during an active SPI transaction on SST25PF080B-80-4C-QAE?

When HOLD# is asserted low during an active SPI sequence with CE# held low, the SST25PF080B-80-4C-QAE suspends communication while preserving internal state - including address pointer and command context - without resetting the interface. SO enters high-impedance, and the device resumes exactly where it left off upon HOLD# deassertion, as verified in Figure 4-2 and Section 4.1 of DS20005137B.

Can SST25PF080B-80-4C-QAE be used for secure firmware authentication?

Yes, the SST25PF080B-80-4C-QAE includes a 256-bit Security ID with a factory-programmed 64-bit immutable segment and a user-programmable 192-bit segment. Once locked via the Lockout SID command, the ID cannot be altered - enabling device-specific authentication and cryptographic binding, as detailed in Section 4.3 of DS20005137B for SST25PF080B-80-4C-QAE.

What write protection mechanisms are available on SST25PF080B-80-4C-QAE?

The SST25PF080B-80-4C-QAE provides three-tiered write protection: (1) hardware WP# pin enabling BPL bit lock-down, (2) software-configurable BP2–BP0 bits for 8-level memory region protection, and (3) software write-enable latch (WEL) requiring WREN instruction before any write. All are documented in Tables 4-1 through 4-3 and Section 4.2 of DS20005137B for SST25PF080B-80-4C-QAE.

SST25PF080B-80-4C-QAE Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: SST25

Package/Case:: 8-WDFN Exposed Pad

Packaging:: Tube

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:: 2.3V ~ 3.6V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 8-WSON (6x5)

SST25PF080B-80-4C-QAE FAQ

1.How can I place an order for SST25PF080B-80-4C-QAE through Aetrix?

Please submit a Request for Quotation (RFQ) for SST25PF080B-80-4C-QAE 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 SST25PF080B-80-4C-QAE reliable?

The price and inventory of SST25PF080B-80-4C-QAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25PF080B-80-4C-QAE is usually 5 days.

3.What payment methods are accepted for SST25PF080B-80-4C-QAE?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25PF080B-80-4C-QAE transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for SST25PF080B-80-4C-QAE?

SST25PF080B-80-4C-QAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your SST25PF080B-80-4C-QAE 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 SST25PF080B-80-4C-QAE?

For technical support, including SST25PF080B-80-4C-QAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25PF080B-80-4C-QAE requirements.

6.How does Aetrix verify that SST25PF080B-80-4C-QAE is sourced from the original manufacturer or authorized distributors?

All SST25PF080B-80-4C-QAE 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 SST25PF080B-80-4C-QAE meets industry standards.

7.What is the process for return or replacement of SST25PF080B-80-4C-QAE?

All SST25PF080B-80-4C-QAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25PF080B-80-4C-QAE, 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 SST25PF080B-80-4C-QAE part is unused and in its original packaging.

Return procedure for SST25PF080B-80-4C-QAE:

1.Submit a request within 90 days.

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

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