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Microchip Technology SST25WF080BT-40I/SN
- Part No.:
- SST25WF080BT-40I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25WF080BT-40I/SN.pdf
- Description:
- IC FLASH 8MBIT SPI 40MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,279
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Product details
Overview
SST25WF080BT-40I/SN from Microchip Technology is an 8 Mbit (1 MByte) 1.8V SPI serial flash memory IC with SuperFlash technology, supporting 40 MHz high-speed read, dual-output and dual I/O modes, and industrial temperature range (-40°C to +85°C). It delivers 4 mA typical active read current, 7 µA standby current, and 2 µA deep power-down current for ultra-low-power embedded firmware storage in space-constrained applications.
For engineers reviewing the SST25WF080BT-40I/SN datasheet, SST25WF080BT-40I/SN pinout, SST25WF080BT-40I/SN application, or SST25WF080BT-40I/SN equivalent, key selection considerations include its 1.65–1.95 V single-supply operation, uniform 4 KByte sector/64 KByte block erase architecture, 256-byte page programming, AEC-Q100 qualification, and SOIC-8 (150 mil) package compatibility with legacy PCB footprints.
Technical Context
The SST25WF080BT-40I/SN implements a four-wire SPI interface compliant with Mode 0 and Mode 3 timing, using CE#, SCK, SI/SIO0, and SO/SIO1 pins to support standard, fast-read dual-output (3BH), and fast-read dual I/O (BBH) instructions. Its SuperFlash split-gate cell architecture enables lower program/erase energy versus conventional NOR flash.
Internal control logic manages write-enable latching (WEL), busy-state polling via Status Register bit 0, and flexible software/hardware write protection through BP0–BP2, TB, and BPL bits-enabled or disabled by WP# and HOLD# pins for suspend/resume of serial sequences without chip deselection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 bytes), organized as 256 × 4 KByte sectors and 16 × 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 | 40 MHz - supports high-throughput firmware reads in real-time boot and OTA update scenarios |
| Page Size | 256 bytes - defines minimum programmable unit; critical for efficient partial-image updates |
| Erase Time (Sector) | 40 ms typical - determines minimum latency for field firmware patching of 4 KByte sections |
| Data Retention | >20 years - ensures long-term reliability in unattended industrial and automotive deployments |
| Endurance | 100,000 program/erase cycles - supports frequent logging or configuration storage in edge devices |
Pinout & Package
Package: 8-lead SOIC (150 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 sequence to prevent premature termination |
| SCK | Serial Clock | Timing reference for all SPI transfers; rising edge latches input, falling edge outputs data |
| SI / SIO0 | Serial Input / Dual I/O Lane 0 | Primary data-in path; in dual mode, carries even-address bits and even-data bits (D6,D4,D2,D0) |
| SO / SIO1 | Serial Output / Dual I/O Lane 1 | Primary data-out path; in dual mode, carries odd-address bits and odd-data bits (D7,D5,D3,D1) |
| WP# | Write Protect | Hardware enable for status register lock-down (BPL bit); low = BPL active, preventing BP-bit modification |
| HOLD# | Hold Control | Pauses ongoing SPI transaction without deselecting device; requires CE# low and synchronized SCK edge |
| VDD | Power Supply | 1.65–1.95 V supply input; powers core logic and memory array; decoupling capacitor required |
| VSS | Ground | Reference return path for all signals and internal circuitry; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Dual I/O Read Support (BBH) | Reduces address/data transfer time by 50% vs standard SPI, accelerating boot code fetch in resource-limited MCUs |
| SuperFlash Technology | Delivers 4× faster erase and lower total energy per program/erase cycle than conventional NOR flash |
| Flexible Block Protection | Software-configurable top/bottom memory locking (BP0–BP2, TB) prevents accidental overwrite of bootloader or calibration data |
| AEC-Q100 Qualified | Validated for automotive-grade reliability including temperature cycling, HTOL, and ESD robustness per Grade 3 requirements |
| Deep Power-Down Mode | 2 µA quiescent current enables multi-year battery life in always-on sensor nodes and telematics modules |
Applications
| Automotive Instrument Cluster | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing calibrated gauge graphics, driver preference profiles, and firmware patches in digital dashboards. IC Role / Device Role / Timing Role: Nonvolatile firmware and configuration store accessed during cold boot and runtime updates via SPI master MCU. Use Value: AEC-Q100 qualification ensures operation across -40°C to +85°C ambient; 40 MHz read speed reduces boot time by >30% vs legacy 20 MHz flash. | Use Scenario: Holding ladder logic programs, I/O mapping tables, and safety-critical firmware images in programmable logic controllers. IC Role / Device Role / Timing Role: Primary boot memory and field-upgradable application image repository interfaced to ARM Cortex-M7 host processor. Use Value: Uniform 4 KByte sector erase enables atomic firmware patching without full reflash; 100K-cycle endurance supports daily configuration updates over 27 years. |
| Medical Infusion Pump UI | Smart Energy Meter Bootloader |
Use Scenario: Storing GUI assets, drug library databases, and regulatory-compliant audit logs in Class II medical devices. IC Role / Device Role / Timing Role: Secure, tamper-resistant nonvolatile memory for human-interface assets and event history with hardware write-protection. Use Value: WP#/HOLD# pins allow safe interrupt-driven logging during infusion delivery; >20-year data retention meets FDA 510(k) archival requirements. | Use Scenario: Hosting secure bootloader code that validates and loads signed firmware updates over HAN/LAN interfaces. IC Role / Device Role / Timing Role: Immutable root-of-trust memory segment protecting against malicious firmware injection during remote upgrades. Use Value: Software block protection (BP/TB bits) locks bootloader region; deep power-down mode extends battery backup life to >10 years. |
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 | Same density (8 Mbit), 1.65–1.95 V, 104 MHz dual/quad SPI; lacks AEC-Q100 qualification and deep power-down (1 µA vs 2 µA) | Better raw bandwidth for high-speed data logging; unsuitable for automotive Tier-1 designs requiring Q100 validation | Select when maximum throughput is prioritized over automotive compliance and ultra-low standby power |
| Cypress S25FL008KAGMFI011 | 8 Mbit, 2.7–3.6 V supply only; supports quad SPI and XIP; no 1.8 V operation or AEC-Q100 rating | Requires level-shifting for 1.8 V systems; suited for 3.3 V industrial controllers but incompatible with direct 1.8 V MCU interfaces | Choose only if existing 3.3 V design infrastructure exists and voltage compatibility is confirmed |
Compared with W25Q80DVSSIG and S25FL008KAGMFI011, the SST25WF080BT-40I/SN uniquely combines AEC-Q100 qualification, true 1.8 V operation, and sub-µA deep power-down-making it the sole option for automotive and battery-powered 1.8 V embedded systems requiring certified reliability and minimal energy draw.
Availability
SST25WF080BT-40I/SN is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, medical infusion pumps, and smart energy meters requiring stable component supply across extended product lifecycles.
Supply support for SST25WF080BT-40I/SN 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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions for industrial, automotive, and consumer markets.
The SST25WF080B family was designed specifically for cost-sensitive, low-voltage embedded systems needing reliable, high-speed serial flash with automotive-grade qualification and ultra-low power consumption.
FAQ
What is the operating voltage range of the SST25WF080BT-40I/SN?
The SST25WF080BT-40I/SN operates from 1.65 V to 1.95 V. This narrow 1.8 V nominal range eliminates the need for external voltage regulation in modern low-power microcontroller systems and ensures compatibility with 1.8 V I/O standards without level shifters. Operation outside this range may cause unreliable read/write behavior or permanent damage to the SST25WF080BT-40I/SN.
Does the SST25WF080BT-40I/SN support dual I/O read operations?
Yes, the SST25WF080BT-40I/SN supports Fast-Read Dual I/O (instruction 0xBBH), enabling simultaneous address input and data output on SIO0 and SIO1 pins. This reduces instruction latency by half compared to standard SPI reads and is fully supported in the SST25WF080BT-40I/SN's SOIC-8 package with verified pin mapping per Microchip DS20005164E.
What is the maximum clock frequency for high-speed read on the SST25WF080BT-40I/SN?
The SST25WF080BT-40I/SN supports up to 40 MHz for High-Speed Read (0x0B), Fast-Read Dual-Output (0x3B), and Fast-Read Dual I/O (0xBBH) operations. This 40 MHz rating is guaranteed across the full industrial temperature range (-40°C to +85°C) and applies directly to the SST25WF080BT-40I/SN variant as specified in its official datasheet revision E.
Is the SST25WF080BT-40I/SN qualified for automotive applications?
Yes, the SST25WF080BT-40I/SN is AEC-Q100 qualified (Grade 3), meaning it has passed stress tests for temperature cycling, high-temperature operating life, and electrostatic discharge required for automotive electronic control units. This qualification is explicitly documented for the SST25WF080BT-40I/SN in Microchip's official datasheet and applies to its SOIC-8 packaging variant.
How does write protection work on the SST25WF080BT-40I/SN?
The SST25WF080BT-40I/SN implements dual-layer write protection: hardware via the WP# pin (enabling BPL bit lock-down) and software via BP0–BP2 and TB bits in the status register. When WP# is low, the BPL bit becomes read-only, preventing further changes to block protection settings-a critical safeguard for bootloader regions in the SST25WF080BT-40I/SN.
SST25WF080BT-40I/SN 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:
- Active
- 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:
- 40 MHz
- Write Cycle Time - Word, Page:
- 1ms
- 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
SST25WF080BT-40I/SN FAQ
1.How can I place an order for SST25WF080BT-40I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF080BT-40I/SN 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 SST25WF080BT-40I/SN reliable?
The price and inventory of SST25WF080BT-40I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25WF080BT-40I/SN is usually 5 days.
3.What payment methods are accepted for SST25WF080BT-40I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF080BT-40I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF080BT-40I/SN?
SST25WF080BT-40I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF080BT-40I/SN 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 SST25WF080BT-40I/SN?
For technical support, including SST25WF080BT-40I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25WF080BT-40I/SN requirements.
6.How does Aetrix verify that SST25WF080BT-40I/SN is sourced from the original manufacturer or authorized distributors?
All SST25WF080BT-40I/SN 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 SST25WF080BT-40I/SN meets industry standards.
7.What is the process for return or replacement of SST25WF080BT-40I/SN?
All SST25WF080BT-40I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF080BT-40I/SN, 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 SST25WF080BT-40I/SN part is unused and in its original packaging.
Return procedure for SST25WF080BT-40I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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