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Microchip Technology SST25WF080-75-4I-SAF
- Part No.:
- SST25WF080-75-4I-SAF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25WF080-75-4I-SAF.pdf
- Description:
- IC FLASH 8MBIT SPI 75MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
SST25WF080-75-4I-SAF from Microchip Technology (formerly Silicon Storage Technology) is an 8 Mbit, 1.8V SPI serial flash memory IC designed for embedded code storage and data logging in space-constrained systems. It delivers 75 MHz high-speed read performance, operates from 1.65–1.95 V, supports uniform 4 KByte sectors and 32/64 KByte overlay blocks, and features Auto Address Increment (AAI) programming for accelerated firmware updates in industrial controllers.
For engineers reviewing the SST25WF080-75-4I-SAF datasheet, SST25WF080-75-4I-SAF pinout, SST25WF080-75-4I-SAF application, or SST25WF080-75-4I-SAF equivalent, key selection considerations include its 75 MHz high-speed read capability, dual-mode RST#/HOLD# pin, hardware-ready/busy status on SO during AAI, 100,000-cycle endurance, and industrial temperature range (−40°C to +85°C).
Technical Context
The SST25WF080-75-4I-SAF implements a four-wire SPI interface compliant with Mode 0 and Mode 3 protocols, using CMOS SuperFlash technology with split-gate cells and thick-oxide tunneling injectors for enhanced reliability. Its command set includes High-Speed Read (0BH), AAI Word-Program (ADH), and configurable RY/BY# output via EBSY/DBSY instructions.
It integrates a software status register with BUSY, WEL, BP0–BP3, AAI, and BPL bits, enabling fine-grained block protection and real-time write-status monitoring. The device supports both hardware reset (RST#) and suspend-on-demand (HOLD#) modes, with CE#-synchronized instruction execution and wrap-around address increment during sequential reads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1 MByte), organized in uniform 4 KByte sectors and 32/64 KByte overlay blocks |
| Supply Voltage | 1.65–1.95 V - enables direct integration with 1.8 V logic domains without level shifting |
| Max Clock Frequency | 75 MHz - supports high-throughput firmware loading and boot code execution |
| Endurance | 100,000 program/erase cycles - suitable for frequent field-upgrade applications |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade embedded systems |
| Active Read Current | 2 mA typical @ 33 MHz - low power consumption during active code fetch |
| Standby Current | 5 µA typical - minimizes system-level quiescent power draw |
Pinout & Package
Package: 8-lead SOIC (150 mils), RoHS-compliant, surface-mountable with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low throughout command sequence to prevent premature termination |
| SO | Serial Data Output / RY/BY# | Outputs read data or hardware-ready/busy status during AAI mode when configured via EBSY/DBSY |
| WP# | Write Protect | Enables lock-down of Block-Protection bits (BP0–BP3) in status register when driven low |
| VSS | Ground | Reference return path for all I/O and core circuitry; requires low-impedance PCB connection |
| VDD | Power Supply | 1.65–1.95 V supply input; decoupling capacitor required per datasheet layout guidelines |
| RST#/HOLD# | Reset or Hold Control | Default hardware reset pin; configurable as HOLD# to pause SPI communication without deselecting device |
| SCK | Serial Clock | Timing reference for SPI transfers; rising edge latches SI, falling edge drives SO |
| SI | Serial Data Input | Accepts commands, addresses, and data; sampled on rising edge of SCK |
Key Features
| Feature | Design Value |
|---|---|
| High-Speed Read at 75 MHz | Reduces boot time and firmware load latency vs. standard 33 MHz SPI flash |
| Auto Address Increment (AAI) Programming | Eliminates repeated address transmission during multi-byte writes, cutting total programming time by up to 40% |
| Dual-Function RST#/HOLD# Pin | Enables in-system suspend/resume of SPI sequences without interrupting CE# or clock continuity |
| Hardware RY/BY# on SO Pin | Allows real-time busy detection during AAI without polling status register, reducing CPU overhead |
| Flexible Block Protection | Software-configurable BP0–BP3 bits support 6 protection levels from upper 1/16 to full memory array |
| SuperFlash Technology | Split-gate cell architecture delivers superior endurance and data retention vs. conventional NOR flash |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing and executing firmware images in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Primary non-volatile code storage device interfaced directly to ARM Cortex-M7 microcontroller via SPI bus; provides deterministic 75 MHz read access during cold boot. Use Value: 100-year data retention and −40°C to +85°C operation ensure firmware integrity across decades of unattended operation in harsh industrial settings. | Use Scenario: Holding certified bootloader and safety-critical configuration parameters in portable diagnostic equipment requiring regulatory compliance and field-upgradability. IC Role / Device Role / Timing Role: Secure, write-protected SPI flash used for immutable boot code storage; leverages WP# and BPL bits to prevent accidental corruption during over-the-air updates. Use Value: Hardware-enabled RY/BY# signaling on SO pin allows host MCU to initiate AAI programming only when ready, eliminating race conditions in safety-critical update sequences. |
| Smart Energy Meter Data Logging | Automotive Infotainment Configuration |
Use Scenario: Recording time-stamped energy consumption metrics in utility-grade smart meters operating continuously for 15+ years. IC Role / Device Role / Timing Role: Secondary non-volatile storage for cyclic data buffers; uses uniform 4 KByte sector erase to minimize wear on frequently updated log partitions. Use Value: 100,000-cycle endurance and ultra-low 5 µA standby current extend battery life and reduce maintenance intervals in sealed meter housings. | Use Scenario: Storing display calibration profiles, audio equalization presets, and regional language packs in automotive head units subject to thermal cycling and vibration. IC Role / Device Role / Timing Role: SPI-connected configuration memory accessed during startup and runtime; relies on HOLD# functionality to pause reads during CAN bus arbitration delays. Use Value: Dual-mode RST#/HOLD# pin allows seamless suspension of SPI transactions without resetting internal state-critical for maintaining UI responsiveness during high-priority vehicle network events. |
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, 3 V supply (2.7–3.6 V); no RST#/HOLD# pin; 104 MHz max clock; Quad SPI capable | Requires voltage translation for 1.8 V systems; lacks hardware hold/suspend capability | Select if higher speed or quad interface needed and 3 V supply is available |
| Macronix MX25L8006EM1I-12G | 8 Mbit, 3 V supply (2.7–3.6 V); 80 MHz max clock; no AAI programming; standard SOIC-8 package | Not pin-compatible; incompatible voltage range; slower programming due to absence of AAI | Choose only for legacy 3 V designs where AAI and 1.8 V operation are not required |
Compared with W25Q80DVSSIG and MX25L8006EM1I-12G, the SST25WF080-75-4I-SAF uniquely supports 1.8 V operation, hardware RY/BY# signaling, and AAI programming-making it irreplaceable in power-sensitive, real-time embedded systems requiring deterministic 75 MHz read and rapid field updates without voltage translation.
Availability
SST25WF080-75-4I-SAF is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, and smart energy meter data logging requiring stable component supply and long-term lifecycle support.
Supply support for SST25WF080-75-4I-SAF 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 acquired Silicon Storage Technology (SST) in 2010 and maintains the SuperFlash serial flash product line with full technical documentation and long-term manufacturing commitment.
The SST25WF080-75-4I-SAF belongs to the Serial Flash 25 Series, engineered specifically for low-voltage, high-reliability embedded applications where compact footprint, fast read access, and robust data retention are critical.
FAQ
What is the maximum clock frequency supported by the SST25WF080-75-4I-SAF?
The SST25WF080-75-4I-SAF supports a maximum clock frequency of 75 MHz for High-Speed Read operations using the 0BH instruction. Standard Read (03H) is rated up to 33 MHz. This 75 MHz capability is explicitly specified in the DS25024C datasheet and validated across the industrial temperature range, enabling faster boot and firmware load times compared to baseline SPI flash devices.
Does the SST25WF080-75-4I-SAF support both SPI Mode 0 and Mode 3?
Yes, the SST25WF080-75-4I-SAF is fully compatible with both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). The device samples SI on the rising edge and drives SO on the falling edge of SCK in both modes, as confirmed in Section 6 of the DS25024C datasheet. This dual-mode support simplifies integration with diverse host controllers.
How does the RST#/HOLD# pin function on the SST25WF080-75-4I-SAF?
At power-on, the RST#/HOLD# pin defaults to hardware reset (RST#) functionality. It can be reconfigured as a HOLD# pin via the Enable-Hold (AAH) instruction. In HOLD# mode, the device pauses ongoing SPI sequences without deselecting CE#, preserving internal state-unlike reset, which clears the status register and aborts active operations. This behavior is documented in Sections 7–8 of the DS25024C datasheet.
What write protection mechanisms does the SST25WF080-75-4I-SAF provide?
The SST25WF080-75-4I-SAF offers three-tiered write protection: (1) hardware WP# pin enabling BPL bit lock-down, (2) software-configurable BP0–BP3 bits defining six memory protection levels, and (3) Write-Enable-Latch (WEL) bit requiring explicit WREN instruction before any write. These features are detailed in Tables 3–5 and Section 8 of the DS25024C datasheet.
Is the SST25WF080-75-4I-SAF still recommended for new designs?
No-the SST25WF080-75-4I-SAF is marked "Not Recommended for New Designs" in the official DS25024C datasheet (Revision C, October 2012). Microchip advises contacting sales for migration paths to newer SuperFlash variants. However, Aetrix Electronics continues to support existing designs with full traceable inventory, lifecycle coordination, and technical documentation for legacy integration and maintenance.
SST25WF080-75-4I-SAF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 75 MHz
- Write Cycle Time - Word, Page:
- 25µs
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SST25WF080-75-4I-SAF FAQ
1.How can I place an order for SST25WF080-75-4I-SAF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF080-75-4I-SAF 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 SST25WF080-75-4I-SAF reliable?
The price and inventory of SST25WF080-75-4I-SAF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25WF080-75-4I-SAF is usually 5 days.
3.What payment methods are accepted for SST25WF080-75-4I-SAF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF080-75-4I-SAF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF080-75-4I-SAF?
SST25WF080-75-4I-SAF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF080-75-4I-SAF 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 SST25WF080-75-4I-SAF?
For technical support, including SST25WF080-75-4I-SAF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25WF080-75-4I-SAF requirements.
6.How does Aetrix verify that SST25WF080-75-4I-SAF is sourced from the original manufacturer or authorized distributors?
All SST25WF080-75-4I-SAF 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 SST25WF080-75-4I-SAF meets industry standards.
7.What is the process for return or replacement of SST25WF080-75-4I-SAF?
All SST25WF080-75-4I-SAF units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF080-75-4I-SAF, 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 SST25WF080-75-4I-SAF part is unused and in its original packaging.
Return procedure for SST25WF080-75-4I-SAF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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