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Microchip Technology SST25WF080-75-4I-SAF-T
- Part No.:
- SST25WF080-75-4I-SAF-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25WF080-75-4I-SAF-T.pdf
- Description:
- IC FLASH 8MBIT SPI 75MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,999
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Product details
Overview
SST25WF080-75-4I-SAF-T from Microchip Technology (formerly Silicon Storage Technology) is an 8 Mbit, 1.8V SPI serial flash memory IC with a 75 MHz high-speed read interface, 4 KByte uniform sector erase, and SuperFlash® CMOS technology enabling 100,000 program/erase cycles and >100 years data retention. It serves as non-volatile code/data storage in microcontroller boot loaders, FPGA configuration, and embedded firmware updates.
For engineers reviewing the SST25WF080-75-4I-SAF-T datasheet, SST25WF080-75-4I-SAF-T pinout, SST25WF080-75-4I-SAF-T application, or SST25WF080-75-4I-SAF-T equivalent, key selection criteria include its 1.65–1.95 V single-supply operation, SPI Mode 0/3 compatibility, hardware reset or hold pin option, software write protection via status register BP bits, and industrial temperature range (–40°C to +85°C).
Technical Context
The SST25WF080-75-4I-SAF-T implements a four-wire SPI interface (SCK, SI, SO, CE#) with dual-mode clocking support (Mode 0 and Mode 3), enabling interoperability with diverse host controllers. Its internal architecture uses SST's proprietary split-gate SuperFlash cell with thick-oxide tunneling injector, delivering superior endurance and data retention versus conventional NOR flash.
It supports three erase granularities-4 KByte sectors, 32 KByte blocks, and 64 KByte blocks-and features Auto Address Increment (AAI) word-programming to reduce sequential programming overhead. End-of-write detection is implemented via both software polling of the BUSY bit and hardware-ready/busy output on SO when configured via EBSY/DBSY instructions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1 MByte), organized in 256 uniform 4 KByte sectors |
| Supply Voltage | 1.65–1.95 V - enables direct integration with 1.8 V logic domains without level shifting |
| Max Read Speed | 75 MHz (High-Speed Read mode with dummy cycle) - reduces firmware load latency in real-time systems |
| Endurance | 100,000 program/erase cycles (typical) - supports field-updatable firmware with frequent reprogramming |
| Data Retention | >100 years (typical at 25°C) - ensures long-term reliability in unattended industrial deployments |
| Erase Times | Sector-erase: 18 ms (typical); Chip-erase: 35 ms (typical) - enables rapid field recovery and factory provisioning |
| Active Read Current | 2 mA (typical @ 33 MHz) - minimizes power draw during active boot or configuration reads |
| Standby Current | 5 µA (typical) - extends battery life in always-on or low-power wake-on-event applications |
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 device select; must remain low for full command sequence duration |
| SO | Serial Data Output / RY/BY# | Standard SPI output; configurable as hardware ready/busy indicator during AAI programming |
| WP# | Write Protect | Enables lock-down of Block-Protection bits (BP3–BP0) in status register when pulled low |
| VSS | Ground | Reference return path for all I/O and core circuitry |
| VDD | Power Supply | 1.65–1.95 V supply input; decoupling capacitor required per layout guidelines |
| RST#/HOLD# | Reset or Hold Control | Default hardware reset pin; configurable as suspend pin to pause SPI sequences without deselecting device |
| SCK | Serial Clock | Timing reference for SPI transfers; supports Mode 0 (SCK idle low) and Mode 3 (SCK idle high) |
| SI | Serial Data Input | Command, address, and data input path; sampled on rising SCK edge |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide tunneling injector delivers 100K P/E cycles and >100-year retention without charge-pump complexity |
| Auto Address Increment (AAI) | Reduces sequential byte-program time by eliminating repeated address transmission - critical for fast firmware patching |
| Dual SPI Modes (0 & 3) | Ensures compatibility with ARM Cortex-M, PIC, and FPGA soft-SPI controllers without protocol translation logic |
| Flexible Erase Architecture | Independent 4 KByte sector, 32 KByte block, and 64 KByte block erase enables selective firmware partitioning and wear leveling |
| Hardware RY/BY# on SO | Eliminates software polling overhead during AAI programming - improves deterministic timing in safety-critical boot paths |
| Software Write Protection | Configurable BP3–BP0 bits protect up to full memory array; BPL bit prevents accidental lock-down when WP# is asserted |
Applications
| Microcontroller Boot Memory | FPGA Configuration Storage |
|---|---|
Use Scenario: Stores boot code for ARM Cortex-M4 or RISC-V MCU in industrial gateways requiring secure, field-upgradable startup firmware. IC Role / Device Role / Timing Role: Non-volatile code storage accessed during cold start; supports fast 75 MHz high-speed read for sub-100 ms boot times. Use Value: 100,000-cycle endurance allows over-the-air bootloader updates without premature wear-out; 1.8 V operation matches modern MCU I/O voltage rails. | Use Scenario: Holds bitstream for Xilinx Artix-7 or Intel Cyclone V FPGA in telecom baseband modules needing hot-swap reconfiguration. IC Role / Device Role / Timing Role: Configuration memory loaded at power-on reset; leverages uniform 4 KByte sectors for partial reconfiguration partitions. Use Value: Sector-erase granularity enables dynamic bitstream swapping; SO-as-RY/BY# provides deterministic configuration timing feedback. |
| IoT Edge Device Firmware | Industrial HMI Display Storage |
Use Scenario: Hosts application firmware and calibration tables in battery-powered smart sensors deployed in remote locations for 10+ year service life. IC Role / Device Role / Timing Role: Persistent storage for OTA updates and runtime parameter logging; operates in ultra-low-power standby (5 µA). Use Value: >100-year data retention guarantees integrity across product lifetime; software write protection prevents corruption during brown-out events. | Use Scenario: Stores GUI assets, fonts, and localized language packs for touch-enabled HMIs in factory automation panels. IC Role / Device Role / Timing Role: High-bandwidth read source for display controller DMA; uses 75 MHz HS-Read to stream compressed image tiles. Use Value: 8-lead SOIC footprint simplifies PCB routing in space-constrained enclosures; industrial temp rating ensures operation in 85°C cabinet environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q80DVSSIG | 8 Mbit, 1.65–1.95 V, 104 MHz max read, Quad SPI capable; lacks RST#/HOLD# pin and hardware RY/BY# on SO | Supports QSPI x4 mode for higher bandwidth; not drop-in compatible due to different pinout and missing HOLD# functionality | Select if system requires quad I/O throughput and can accommodate pinout redesign; avoid if HOLD# suspend capability is required. |
| Micron MT25QL80ABB8E12-0SIT | 8 Mbit, 1.7–2.0 V, 133 MHz max read, DTR support; includes SFDP and 4-byte addressing; no RST#/HOLD# pin | Offers enhanced command set (DTR, 4BA) for future-proofing; incompatible pin mapping and voltage upper limit differs | Choose for new designs targeting JEDEC-standardized flash features; not suitable as direct replacement for SST25WF080-75-4I-SAF-T legacy systems. |
Compared with W25Q80DVSSIG and MT25QL80ABB8E12-0SIT, the SST25WF080-75-4I-SAF-T provides unique RST#/HOLD# flexibility and hardware-ready signaling on SO - critical for deterministic boot and low-latency suspend/resume in resource-constrained MCUs where pin count and timing predictability are constrained.
Availability
SST25WF080-75-4I-SAF-T is available at Aetrix Electronics and suitable for industrial control firmware storage, FPGA configuration, and IoT edge device OTA updates requiring stable component supply and long-lifecycle support.
Supply support for SST25WF080-75-4I-SAF-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 acquired Silicon Storage Technology (SST) in 2010 and maintains the Serial Flash 25 Series as part of its broad memory portfolio, emphasizing reliability and low-voltage operation for embedded systems.
The SST25WF080-75-4I-SAF-T belongs to the Serial Flash 25 Series, designed specifically for cost-sensitive, space-constrained applications requiring robust non-volatile storage at 1.8 V - including boot memory, configuration storage, and firmware update buffers in industrial and automotive ECUs.
FAQ
What is the operating voltage range for the SST25WF080-75-4I-SAF-T?
The SST25WF080-75-4I-SAF-T operates from 1.65 V to 1.95 V. This narrow 1.8 V nominal range eliminates the need for external voltage regulation in systems powered by 1.8 V rails, reducing BOM cost and board area. Operation outside this range may cause unreliable read/write behavior or permanent damage. The device does not support 3.3 V interfaces without level translation.
Does the SST25WF080-75-4I-SAF-T support Quad SPI mode?
No, the SST25WF080-75-4I-SAF-T supports only standard four-wire SPI (single I/O) in Mode 0 and Mode 3. It does not implement Quad SPI (QSPI), Dual SPI, or any multi-I/O protocol extensions. Its maximum interface speed is 75 MHz in High-Speed Read mode using a single data line (SO), confirmed in DS25024C Section 13.
How is write protection implemented on the SST25WF080-75-4I-SAF-T?
The SST25WF080-75-4I-SAF-T implements dual-layer write protection: hardware via the WP# pin (enabling BPL bit lock-down) and software via BP3–BP0 bits in the status register. When WP# is low, the BPL bit controls whether BP bits are read-only. Full chip protection is achieved when BP3–BP0 = 101b, protecting all 8 Mbit. This scheme prevents accidental erasure during power transients or firmware bugs.
What is the purpose of the RST#/HOLD# pin on the SST25WF080-75-4I-SAF-T?
The RST#/HOLD# pin on the SST25WF080-75-4I-SAF-T defaults to hardware reset (RST#) at power-on but can be configured as a suspend pin (HOLD#) via the EHLD instruction. In HOLD# mode, it pauses ongoing SPI transactions without deselecting the device - preserving clock phase and internal state. This is essential for interrupt-driven systems where bus arbitration must avoid full command restart overhead.
Is the SST25WF080-75-4I-SAF-T recommended for new designs?
No - the SST25WF080-75-4I-SAF-T is marked "Not Recommended for New Designs" in Microchip's official documentation (DS25024C, Rev 10/12). While fully functional and supported for existing production, Microchip advises migration to newer Serial NOR families (e.g., SST26VF016B or Adesto AT25SF041) for new projects due to enhanced features, extended longevity, and active roadmap support.
SST25WF080-75-4I-SAF-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:
- 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-T FAQ
1.How can I place an order for SST25WF080-75-4I-SAF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF080-75-4I-SAF-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 SST25WF080-75-4I-SAF-T reliable?
The price and inventory of SST25WF080-75-4I-SAF-T 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-T is usually 5 days.
3.What payment methods are accepted for SST25WF080-75-4I-SAF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF080-75-4I-SAF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF080-75-4I-SAF-T?
SST25WF080-75-4I-SAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF080-75-4I-SAF-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 SST25WF080-75-4I-SAF-T?
For technical support, including SST25WF080-75-4I-SAF-T 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-T requirements.
6.How does Aetrix verify that SST25WF080-75-4I-SAF-T is sourced from the original manufacturer or authorized distributors?
All SST25WF080-75-4I-SAF-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 SST25WF080-75-4I-SAF-T meets industry standards.
7.What is the process for return or replacement of SST25WF080-75-4I-SAF-T?
All SST25WF080-75-4I-SAF-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF080-75-4I-SAF-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 SST25WF080-75-4I-SAF-T part is unused and in its original packaging.
Return procedure for SST25WF080-75-4I-SAF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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