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Microchip Technology SST25WF010-40-5I-SAF-T
- Part No.:
- SST25WF010-40-5I-SAF-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25WF010-40-5I-SAF-T.pdf
- Description:
- IC FLASH 1MBIT SPI 40MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,850
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Product details
Overview
SST25WF010-40-5I-SAF-T from Microchip Technology is a 1 Mbit (128 KByte) SPI serial flash memory IC operating at 1.65–1.95 V, supporting 40 MHz high-speed read via SPI Mode 0/3 interface, with uniform 4 KByte sector erase and 100,000 program/erase endurance - used for firmware storage in industrial microcontroller boot loaders.
For engineers reviewing the SST25WF010-40-5I-SAF-T datasheet, SST25WF010-40-5I-SAF-T pinout, SST25WF010-40-5I-SAF-T application, or SST25WF010-40-5I-SAF-T equivalent, key selection considerations include its 1.8V single-supply operation, SOIC-8 package compatibility, AAI programming mode, hardware reset vs. hold pin option, and software write protection via status register BP bits.
Technical Context
This device implements a four-wire SPI-compatible interface (SCK, SI, SO, CE#) with dual-mode clock support (Mode 0 and Mode 3), enabling interoperability with diverse host controllers. It uses SST's proprietary SuperFlash technology with split-gate cell architecture and thick-oxide tunneling injector for enhanced reliability.
Internal operations include Auto Address Increment (AAI) word-programming to reduce sequential write time, end-of-write detection via BUSY bit polling or SO RY/BY# status output, and flexible protection using both WP# pin control and software-configurable Block-Protection bits (BP2–BP0) in the status register.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (128 KByte) organized as uniform 4 KByte sectors |
| Supply Voltage | 1.65–1.95 V - enables direct integration with 1.8V logic domains without level shifting |
| Max Clock Frequency | 40 MHz - supports high-speed read via High-Speed Read (0BH) instruction with dummy byte |
| Endurance | 100,000 program/erase cycles - suitable for field-upgradable firmware with moderate update frequency |
| Data Retention | Greater than 100 years - ensures long-term integrity of stored boot code or calibration data |
| Active Read Current | 2 mA typical @ 20 MHz - minimizes power impact during firmware fetch in battery-sensitive systems |
| Standby Current | 2 µA typical - supports ultra-low-power sleep modes in always-on embedded devices |
Pinout & Package
Package: 8-lead SOIC (150 mils), RoHS compliant, industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low for full command sequence duration |
| SO | Serial Data Output | Outputs read data on falling SCK edge; functions as RY/BY# status pin in AAI mode when configured |
| WP# | Write Protect | Enables/disables lock-down of Block-Protection bits (BP2–BP0) in status register |
| VSS | Ground | Reference return path for all I/O and core circuitry |
| VDD | Power Supply | 1.65–1.95 V supply input; powers internal logic and memory array |
| RST#/HOLD# | Reset or Hold Pin | Default hardware reset function; configurable as HOLD# to suspend SPI communication without deselecting device |
| SCK | Serial Clock | Timing reference; commands/addresses latched on rising edge, data shifted out on falling edge |
| SI | Serial Data Input | Accepts opcodes, addresses, and data; sampled on rising edge of SCK |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash Technology | Split-gate cell with thick-oxide tunneling injector delivers superior reliability and manufacturability vs. conventional flash |
| Auto Address Increment (AAI) | Reduces total programming time for sequential writes by eliminating repeated address transmission per byte |
| Dual SPI Modes | Supports both Mode 0 (SCK idle low) and Mode 3 (SCK idle high) for seamless integration with varied host controllers |
| Flexible Erase Granularity | Uniform 4 KByte sectors only - no 32/64 KByte blocks (confirmed for SST25WF010 per Table 6) |
| Hardware Reset / Hold Option | Single RST#/HOLD# pin defaults to reset; programmable to suspend ongoing SPI sequences without CE# deassertion |
| Software Write Protection | Status register BP2–BP0 bits enable selective protection of upper quarter/half/full memory space, lockable via WP# and BPL bit |
Applications
| Firmware Boot Storage | Industrial Sensor Calibration Data |
|---|---|
Use Scenario: Storing bootloader and application firmware images for ARM Cortex-M microcontrollers in factory automation PLCs. IC Role / Device Role / Timing Role: Non-volatile storage for executable code executed directly from XIP-capable SPI interface during cold start. Use Value: 40 MHz high-speed read ensures sub-100 ms firmware load time; 100-year retention guarantees uncorrupted boot image over equipment lifetime. |
Use Scenario: Holding factory-trimmed sensor offset/gain coefficients and linearization tables in smart pressure transmitters. IC Role / Device Role / Timing Role: Persistent configuration storage updated infrequently during calibration, accessed at system initialization. Use Value: 100,000-cycle endurance supports periodic recalibration over 10+ years; 2 µA standby current preserves battery life in wireless sensor nodes. |
| Medical Device Configuration | Edge Gateway Firmware Update Cache |
Use Scenario: Storing user-selectable operational modes, alarm thresholds, and audit logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, write-protected parameter storage with hardware (WP#) and software (BP bits) protection layers. Use Value: Dual protection prevents accidental overwrite of critical settings; industrial temp rating ensures reliability inside sealed enclosures. |
Use Scenario: Caching downloaded firmware patches prior to atomic update in cellular-connected IoT gateways. IC Role / Device Role / Timing Role: Temporary staging area for verified binaries, erased and rewritten per OTA cycle using Chip-Erase or Sector-Erase. Use Value: Uniform 4 KByte sectors allow precise allocation of patch storage; AAI programming accelerates binary write throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25SF011-SSHD-B | 1 Mbit, 1.7–2.0 V supply, 104 MHz max read (quad SPI), SOIC-8 package | Requires quad SPI controller support; higher speed but incompatible command set and protection model | Select if system requires faster read bandwidth and supports AT25SF command extensions and QPI mode |
| W25Q10EWUXIE | 1 Mbit, 1.65–1.95 V, 133 MHz max read (quad SPI), WSON-8 (6 × 5 mm) | Different pinout (WSON), quad/DTR capability, and status register layout; no RST#/HOLD# pin | Choose for space-constrained designs needing smaller footprint and higher performance, accepting loss of hardware reset/hold functionality |
Compared with SST25WF010-40-5I-SAF-T, AT25SF011-SSHD-B offers higher read speed but demands quad SPI infrastructure and lacks RST#/HOLD#, while W25Q10EWUXIE provides identical voltage and density in a smaller WSON package but removes the dual-function pin and uses a different protection scheme - making SST25WF010-40-5I-SAF-T optimal for legacy SPI-only designs requiring hardware reset flexibility and proven SuperFlash reliability.
Availability
SST25WF010-40-5I-SAF-T is available at Aetrix Electronics and suitable for industrial control firmware storage, medical device configuration retention, and edge gateway OTA update caching requiring stable component supply across multi-year production cycles.
Supply support for SST25WF010-40-5I-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 2016 and maintains the Serial Flash 25 Series as part of its broad non-volatile memory portfolio.
The SST25WF010-40-5I-SAF-T belongs to the Serial Flash 25 Series, designed specifically for cost-sensitive, low-power embedded systems requiring reliable 1.8V SPI flash with industrial temperature operation and simplified board layout.
FAQ
What is the memory organization of the SST25WF010-40-5I-SAF-T?
The SST25WF010-40-5I-SAF-T contains 1 Mbit (128 KByte) of flash memory organized into thirty-two uniform 4 KByte sectors. It does not support 32 KByte or 64 KByte block erase - confirmed in Table 6 of the datasheet, which specifies only 4 KByte sector erase for SST25WF010. Each sector can be independently erased, and the entire array may be erased via Chip-Erase instruction (60H or C7H).
Does the SST25WF010-40-5I-SAF-T support Quad SPI mode?
No, the SST25WF010-40-5I-SAF-T does not support Quad SPI. It implements a standard four-wire SPI interface (SCK, SI, SO, CE#) compatible only with SPI Modes 0 and 3. There is no provision for dual or quad I/O operation, nor any command set extension for QPI - this is consistent across all SST25WFxxx family members per the datasheet's instruction tables and feature list.
What is the function of the RST#/HOLD# pin on the SST25WF010-40-5I-SAF-T?
The RST#/HOLD# pin on the SST25WF010-40-5I-SAF-T defaults to hardware reset (RST#) at power-on. It can be reconfigured as a HOLD# pin via the Enable-Hold (AAH) instruction to suspend ongoing SPI communication without deselecting the device. Once set to HOLD#, it remains active until power-cycled. This dual functionality is unique to the SST25WF series and is documented in Sections 6–7 of the datasheet.
How is write protection implemented on the SST25WF010-40-5I-SAF-T?
Write protection on the SST25WF010-40-5I-SAF-T uses two complementary methods: (1) Hardware via the WP# pin, which enables/disables lock-down of Block-Protection bits (BP2–BP0); and (2) Software via BP2–BP0 in the status register, allowing protection of upper quarter, upper half, or full memory. The BPL bit (bit 7) controls whether BP bits are read-only - set when WP# is low and BPL = 1.
Is the SST25WF010-40-5I-SAF-T still in production?
The SST25WF010-40-5I-SAF-T is an obsolete (EOL) device per Microchip's official datasheet DS20005016C (11/2014). Microchip recommends contacting its sales team for replacement guidance. However, Aetrix Electronics maintains active inventory and supply chain support for this part to serve legacy design continuity and maintenance requirements.
SST25WF010-40-5I-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:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 40 MHz
- Write Cycle Time - Word, Page:
- 60µs
- 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
SST25WF010-40-5I-SAF-T FAQ
1.How can I place an order for SST25WF010-40-5I-SAF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25WF010-40-5I-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 SST25WF010-40-5I-SAF-T reliable?
The price and inventory of SST25WF010-40-5I-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 SST25WF010-40-5I-SAF-T is usually 5 days.
3.What payment methods are accepted for SST25WF010-40-5I-SAF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25WF010-40-5I-SAF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25WF010-40-5I-SAF-T?
SST25WF010-40-5I-SAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25WF010-40-5I-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 SST25WF010-40-5I-SAF-T?
For technical support, including SST25WF010-40-5I-SAF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25WF010-40-5I-SAF-T requirements.
6.How does Aetrix verify that SST25WF010-40-5I-SAF-T is sourced from the original manufacturer or authorized distributors?
All SST25WF010-40-5I-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 SST25WF010-40-5I-SAF-T meets industry standards.
7.What is the process for return or replacement of SST25WF010-40-5I-SAF-T?
All SST25WF010-40-5I-SAF-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25WF010-40-5I-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 SST25WF010-40-5I-SAF-T part is unused and in its original packaging.
Return procedure for SST25WF010-40-5I-SAF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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