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Microchip Technology SST25WF080B-40I/SN
- Part No.:
- SST25WF080B-40I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25WF080B-40I/SN.pdf
- Description:
- IC FLASH 8MBIT SPI 40MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:350
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Product details
Overview
SST25WF080B-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 operating across -40°C to +85°C industrial temperature range. It delivers uniform 4 KByte sector and 64 KByte block erase, 256-byte page programming, and ultra-low power consumption for embedded firmware storage in space-constrained applications.
For engineers reviewing the SST25WF080B-40I/SN datasheet, SST25WF080B-40I/SN pinout, SST25WF080B-40I/SN application, or SST25WF080B-40I/SN equivalent, key selection considerations include its 1.65–1.95 V single-supply operation, AEC-Q100 qualification, dual I/O timing compatibility, and software/hardware write protection architecture.
Technical Context
The SST25WF080B-40I/SN implements a four-wire SPI interface compliant with Mode 0 and Mode 3, 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 internal SuperFlash split-gate cell enables reliable 100,000 program/erase cycles and >20-year data retention at 85°C.
Memory organization comprises 256 uniform 4 KByte sectors and 16 overlay 64 KByte erasable blocks, with flexible protection via status register BP0–BP2, TB, and BPL bits controlled by WP# and software commands. Hold# and WP# pins provide hardware-level suspend and lock-down functionality independent of SPI command flow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1,048,576 bytes), organized as 256 × 4 KByte sectors |
| 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 boot and update sequences |
| Page Program Size | 256 bytes per page - aligns with typical MCU bootloader write granularity |
| Erase Endurance | 100,000 cycles - sufficient for field firmware updates over product lifetime |
| Data Retention | >20 years at +85°C - validated for long-life industrial and automotive deployments |
| Operating Temp | -40°C to +85°C (Industrial grade) - qualified per AEC-Q100 Grade 3 |
Pinout & Package
Package: 8-contact USON (2 mm × 3 mm, 0.45 mm height), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout full instruction cycle including address/data transfer |
| SCK | Serial Clock | Timing reference for all SPI transfers; rising edge latches input, falling edge outputs data |
| SI / SIO0 | Serial Data Input / Dual I/O Lane 0 | Primary input path for commands/addresses; in dual mode, carries even data bits (D6,D4,D2,D0) and even address bits |
| SO / SIO1 | Serial Data Output / Dual I/O Lane 1 | Primary output path for read data; in dual mode, carries odd data bits (D7,D5,D3,D1) and odd address bits |
| WP# | Write Protect | Hardware enable for status register lock-down (BPL bit); low = enables BP bit protection enforcement |
| HOLD# | Hold | Pauses ongoing SPI sequence 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 |
| VSS | Ground | Reference return path for all digital and memory operations |
Key Features
| Feature | Design Value |
|---|---|
| Dual I/O Read Support (BBH) | Reduces address+data clock count by 50% vs standard SPI, accelerating firmware load time in resource-limited hosts |
| Deep Power-down Mode | 2 µA typical current draw - enables battery-backed systems to retain firmware state during extended sleep |
| Flexible Block Protection | Software-configurable top/bottom memory regions (1/16 to full array) with hardware lock-down via WP# |
| SuperFlash Technology | Split-gate cell architecture delivers lower program current and faster erase vs conventional NOR flash |
| End-of-Write Detection | BUSY bit polling in status register eliminates need for fixed delay timers in host firmware |
Applications
| Secure Bootloader Storage | Automotive ECU Firmware |
|---|---|
|
Use Scenario: Storing signed bootloader images and public keys in safety-critical microcontrollers requiring tamper-resistant nonvolatile storage. IC Role / Device Role / Timing Role: Primary firmware code storage with hardware write protection and AEC-Q100 qualification for functional safety compliance. Use Value: Enables secure boot validation and field firmware updates while meeting ISO 26262 ASIL-B requirements through verified data retention and endurance. |
Use Scenario: Holding calibration data, sensor fusion parameters, and control algorithms in engine control units and ADAS domain controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration and code storage interfaced directly to 1.8 V automotive MCUs via SPI. Use Value: Delivers guaranteed 20-year data retention at 125°C junction and 100K-cycle endurance for lifetime vehicle operation. |
| IoT Edge Node Configuration | Industrial HMI Display Firmware |
|
Use Scenario: Storing network credentials, OTA update manifests, and device-specific settings in battery-powered smart sensors and gateways. IC Role / Device Role / Timing Role: Low-power configuration store accessed intermittently during wake-up cycles. Use Value: Achieves 7 µA standby and 2 µA deep power-down current to extend coin-cell battery life beyond 5 years. |
Use Scenario: Hosting GUI assets, font tables, and application firmware in human-machine interface panels used in factory automation equipment. IC Role / Device Role / Timing Role: High-reliability code and asset storage with fast 40 MHz read access for responsive UI rendering. Use Value: Supports rapid GUI loading via Fast-Read Dual-Output (3BH) mode, reducing display initialization latency by 2× vs standard SPI. |
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 clock, Quad SPI support (not dual I/O), no HOLD# pin | Lacks hardware hold function and dual I/O timing; supports QPI for higher bandwidth but requires different driver stack | Select when quad interface and higher clock speed outweigh need for HOLD# and dual I/O compatibility |
| Cypress S25FL008K0XMFI011 | 8 Mbit, 2.7–3.6 V only, 80 MHz max clock, supports SFDP and 4-byte addressing, no AEC-Q100 qualification | Requires 3.3 V supply and lacks automotive qualification; offers enhanced security features (OTP, secure OTP) | Select for 3.3 V systems needing advanced security or SFDP-based auto-configuration, not for 1.8 V or automotive use |
Compared with W25Q80DVSSIG and S25FL008K0XMFI011, the SST25WF080B-40I/SN uniquely combines 1.8 V operation, AEC-Q100 qualification, dual I/O timing, and hardware HOLD#/WP# pins-making it optimal for space-constrained, automotive-grade, and ultra-low-power 1.8 V embedded designs where pin compatibility and deterministic suspend behavior are critical.
Availability
SST25WF080B-40I/SN is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial HMI display boot code, and IoT edge node configuration requiring stable component supply, long-term lifecycle assurance, and AEC-Q100 compliance.
Supply support for SST25WF080B-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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with emphasis on reliability, longevity, and embedded system integration.
The SST25WF080B-40I/SN belongs to Microchip's Serial Flash 25 Series, designed specifically for cost-sensitive, low-voltage, high-reliability embedded applications demanding AEC-Q100 qualification and minimal board footprint.
FAQ
What is the maximum clock frequency supported by SST25WF080B-40I/SN?
The SST25WF080B-40I/SN supports up to 40 MHz for High-Speed Read, Fast-Read Dual-Output (3BH), and Fast-Read Dual I/O (BBH) operations. Standard Read (03H) is rated to 30 MHz. This 40 MHz capability enables faster firmware loading and real-time configuration access in performance-sensitive embedded systems using the SST25WF080B-40I/SN.
Does SST25WF080B-40I/SN support both SPI Mode 0 and Mode 3?
Yes, the SST25WF080B-40I/SN 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, allowing seamless integration with diverse host controllers without protocol translation. This dual-mode support is confirmed in the official SST25WF080B-40I/SN datasheet.
How does the HOLD# pin function in SST25WF080B-40I/SN?
The HOLD# pin in the SST25WF080B-40I/SN suspends an active SPI transaction without deselecting the device or resetting internal state. When asserted low (with CE# active), it places SO in high-impedance while preserving the command/address context. Communication resumes upon deasserting HOLD# while CE# remains low. This feature is essential for interrupt-driven hosts managing concurrent peripherals, and is natively supported in the SST25WF080B-40I/SN.
What package options are available for SST25WF080B-40I/SN?
The SST25WF080B-40I/SN is offered in two RoHS-compliant packages: 8-lead SOIC (150 mil) and 8-contact USON (2 mm × 3 mm). The /SN suffix explicitly denotes the USON package variant. Both packages share identical pinout and electrical specifications, enabling drop-in layout reuse where board space allows - a key advantage for compact SST25WF080B-40I/SN implementations.
Is SST25WF080B-40I/SN qualified for automotive applications?
Yes, the SST25WF080B-40I/SN is AEC-Q100 qualified (Grade 3, -40°C to +85°C ambient), making it suitable for automotive infotainment, body control modules, and ADAS subsystems. Its SuperFlash technology ensures >20-year data retention at 85°C and 100,000 program/erase cycles - validated under stress conditions defined in the AEC-Q100 standard for the SST25WF080B-40I/SN.
SST25WF080B-40I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
SST25WF080B-40I/SN FAQ
1.How can I place an order for SST25WF080B-40I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF080B-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 SST25WF080B-40I/SN reliable?
The price and inventory of SST25WF080B-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 SST25WF080B-40I/SN is usually 5 days.
3.What payment methods are accepted for SST25WF080B-40I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF080B-40I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF080B-40I/SN?
SST25WF080B-40I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF080B-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 SST25WF080B-40I/SN?
For technical support, including SST25WF080B-40I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25WF080B-40I/SN requirements.
6.How does Aetrix verify that SST25WF080B-40I/SN is sourced from the original manufacturer or authorized distributors?
All SST25WF080B-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 SST25WF080B-40I/SN meets industry standards.
7.What is the process for return or replacement of SST25WF080B-40I/SN?
All SST25WF080B-40I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF080B-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 SST25WF080B-40I/SN part is unused and in its original packaging.
Return procedure for SST25WF080B-40I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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