Microchip Technology SST26WF016BA-104I/MF
- Part No.:
- SST26WF016BA-104I/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26WF016BA-104I/MF.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SST26WF016BA-104I/MF from Microchip Technology is a 1.8V, 16 Mbit Serial Quad I/O (SQI) flash memory IC with 104 MHz max clock frequency, 4 KByte uniform sector erase, and 256-byte page programming. It operates within -40°C to +85°C industrial temperature range and supports both SPI and SQI protocols in an 8-contact WDFN (6 mm × 5 mm) package for embedded boot code and firmware storage.
For engineers reviewing the SST26WF016BA-104I/MF datasheet, SST26WF016BA-104I/MF pinout, SST26WF016BA-104I/MF application, or SST26WF016BA-104I/MF equivalent, key selection criteria include quad-I/O throughput at 104 MHz, hardware write-protection disable-by-default behavior, deep power-down current of 2.5 μA, and factory-configured IOC=1 enabling SIO[3:0] multiplexing without hold/write-protect pin activation.
Technical Context
The SST26WF016BA-104I/MF implements a six-wire SQI interface with four multiplexed bidirectional data lines (SIO[3:0]), supporting Mode 0 and Mode 3 clock polarity/phase configurations. Its SuperFlash® technology enables 18 ms typical sector erase and 35 ms typical chip erase with 100,000 program/erase cycles endurance.
Unlike the SST26WF016B variant, the SST26WF016BA-104I/MF ships with IOC=1 and WPEN=0 at power-up-disabling WP# and HOLD# pins by default and enabling quad I/O mode immediately after reset. It features a 48-bit Block-Protection Register with OTP nVWLDR lock-down capability and a 2 KByte Security ID space containing factory-programmed 64-bit unique identifier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte), organized as thirty 64 KByte blocks + two 32 KByte + eight 8 KByte parameter blocks |
| Interface Protocol | Supports SPI x1/x2/x4 and SQI x4 modes; IOC=1 default enables immediate quad I/O operation |
| Max Clock Frequency | 104 MHz in high-speed read and quad page program modes-enables ~416 MB/s theoretical burst throughput |
| Supply Voltage | 1.65–1.95 V single supply-compatible with 1.8 V logic systems and low-power portable designs |
| Erase Performance | 18 ms typical sector (4 KByte) erase; 35 ms typical chip erase-reduces firmware update latency |
| Data Retention | Greater than 100 years-ensures long-term reliability for industrial and automotive firmware storage |
| Power Consumption | 2.5 μA deep power-down current-critical for battery-backed or energy-harvesting applications |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low during command/data sequences; controls SPI/SQI transaction boundaries |
| SIO0 (SI) | Serial Data Input / Quad I/O 0 | Primary input in SPI mode; bidirectional in SQI mode; latched on rising SCK edge |
| SIO1 (SO) | Serial Data Output / Quad I/O 1 | Primary output in SPI mode; bidirectional in SQI mode; driven on falling SCK edge |
| SIO2 (WP#) | Quad I/O 2 / Write Protect | Functionally SIO2 in SQI mode; WP# only active in SPI mode when IOC=0 and WPEN=1-disabled by default in SST26WF016BA-104I/MF |
| SIO3 (HOLD#) | Quad I/O 3 / Hold | Functionally SIO3 in SQI mode; HOLD# only active in SPI mode when IOC=0-disabled by default in SST26WF016BA-104I/MF |
| SCK | Serial Clock | Timing reference for all serial transfers; supports Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) |
| VDD | Power Supply | 1.65–1.95 V core supply; decoupling required per layout guidelines to maintain signal integrity at 104 MHz |
| VSS | Ground | Reference return path for all I/O and internal circuitry; requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Factory-configured IOC=1 | Enables immediate SQI x4 operation without software reconfiguration-reduces boot-time initialization overhead |
| Write-suspend/resume | Allows interruption of active program/erase to service higher-priority reads-essential for real-time firmware updates |
| Uniform 4 KByte sectors | Enables precise, granular firmware partitioning and over-the-air (OTA) differential updates without full-image rewrites |
| 2 KByte Security ID | Contains factory-programmed 64-bit unique ID + user-programmable area-supports secure device authentication and binding |
| Deep power-down mode | 2.5 μA standby current with fast wake-up-extends battery life in always-on IoT edge nodes |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing boot loader and safety-critical firmware in programmable logic controllers requiring field-upgradable code with tamper resistance. IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic 104 MHz read access and secure firmware validation via Security ID. Use Value: 100-year data retention and 100,000-cycle endurance ensure multi-decade deployment without refresh; OTP lock-down prevents unauthorized firmware modification. | Use Scenario: Holding camera sensor calibration data and low-level boot code in autonomous driving ECUs where power loss resilience is mandatory. IC Role / Device Role / Timing Role: High-reliability firmware storage with deep power-down support for rapid cold-start recovery after vehicle ignition. Use Value: 2.5 μA deep power-down current minimizes battery drain during vehicle sleep mode; uniform 4 KByte sectors enable atomic OTA patching. |
| Medical Imaging Device Configuration | Smart Energy Meter Firmware |
Use Scenario: Storing DICOM configuration profiles and regulatory-compliant calibration parameters in portable ultrasound systems. IC Role / Device Role / Timing Role: Secure, write-protected parameter storage with factory-unique Security ID for audit-trail traceability. Use Value: Read protection on top/bottom 8 KByte parameter blocks prevents accidental exposure of sensitive calibration data; nVWLDR ensures permanent lock-down compliance. | Use Scenario: Hosting firmware and tariff tables in ANSI C12.22-compliant smart meters deployed in harsh outdoor environments. IC Role / Device Role / Timing Role: Industrial-grade flash memory operating reliably across -40°C to +85°C with robust ESD immunity. Use Value: RoHS-compliant WDFN package withstands thermal cycling; 104 MHz read speed accelerates meter boot and firmware verification. |
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 W25Q16JWIM (16 Mbit, 1.6–1.95 V) | Supports octal DTR mode up to 133 MHz; lacks factory-configured IOC=1 and integrated Security ID | Better suited for high-throughput streaming applications; no built-in secure ID for device binding | Select if maximum sequential read bandwidth is prioritized over out-of-box security features |
| Cypress S25FL116K0XMFI011 (16 Mbit, 2.7–3.6 V) | Higher 3.3 V supply; supports 80 MHz SPI but no SQI; includes 64-bit unique ID but no user-programmable Security ID space | Requires level-shifting for 1.8 V systems; limited to legacy SPI interfaces | Select only for existing 3.3 V designs needing pin-compatible replacement without voltage translation |
Compared with Winbond W25Q16JWIM and Cypress S25FL116K0XMFI011, the SST26WF016BA-104I/MF delivers superior integration for secure, low-voltage embedded boot-combining factory-enabled SQI, 2 KByte programmable Security ID, and 2.5 μA deep power-down in a single 1.8 V package.
Availability
SST26WF016BA-104I/MF is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, medical imaging configuration, smart energy meter firmware, and secure IoT node provisioning requiring stable component supply and long-lifecycle support.
Supply support for SST26WF016BA-104I/MF 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 manufacturer specializing in microcontrollers, analog devices, and non-volatile memory solutions with emphasis on reliability and long-term product availability.
The SST26WF016BA-104I/MF belongs to Microchip's Serial Quad I/O™ (SQI™) flash family, designed specifically for high-performance, low-power embedded systems requiring fast, secure, and reliable firmware and parameter storage in space-constrained 1.8 V applications.
FAQ
What is the default I/O configuration of SST26WF016BA-104I/MF at power-up?
The SST26WF016BA-104I/MF powers up with IOC=1 and WPEN=0, disabling WP# and HOLD# pins and enabling immediate SQI x4 operation on SIO[3:0]. This differs from the SST26WF016B variant, which defaults to IOC=0 and requires software configuration to enter SQI mode. The SST26WF016BA-104I/MF thus eliminates boot-time initialization steps for quad I/O use cases.
Does SST26WF016BA-104I/MF support both SPI and SQI protocols simultaneously?
No-SST26WF016BA-104I/MF operates in either SPI mode (x1/x2/x4) or SQI mode (x4), selected via the IOC bit in the Configuration Register. With IOC=1 (default), only SQI commands like RBSQI (0CH) and SQIOR (EBH) are valid; SPI-only commands such as Read Memory (03H) remain functional but do not leverage quad I/O bandwidth. Mode switching requires explicit register writes and is not concurrent.
How does the Security ID feature work in SST26WF016BA-104I/MF?
The SST26WF016BA-104I/MF includes a 2 KByte Security ID space: 64 bits factory-programmed with a unique identifier (read-only) and a user-programmable area. The PSID command writes to the user area; LSID permanently locks the entire space. Once locked, SEC=1 in the Status Register and no further writes are possible. This enables secure device binding and cryptographic key storage without external secure elements.
What is the significance of the "-104" suffix in SST26WF016BA-104I/MF?
The "-104" denotes the maximum clock frequency rating: 104 MHz for high-speed read and quad page program operations. This distinguishes it from slower variants like -085 (85 MHz) and confirms timing compliance for 104 MHz SCK operation under specified VDD (1.65–1.95 V) and temperature (-40°C to +85°C) conditions per DS20005013D.
Can SST26WF016BA-104I/MF be used as a direct replacement for SST26WF016B-104I/MF?
No-while pin-compatible and electrically identical, SST26WF016BA-104I/MF and SST26WF016B-104I/MF differ in factory default register states: BA has IOC=1/WPEN=0 (WP#/HOLD# disabled), whereas B has IOC=0/WPEN=0 (WP#/HOLD# enabled). Substituting BA for B may cause unexpected hold/write-protect behavior unless firmware explicitly configures IOC and WPEN to match legacy expectations.
SST26WF016BA-104I/MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 1.5ms
- 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-WDFN (5x6)
SST26WF016BA-104I/MF FAQ
1.How can I place an order for SST26WF016BA-104I/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26WF016BA-104I/MF 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 SST26WF016BA-104I/MF reliable?
The price and inventory of SST26WF016BA-104I/MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26WF016BA-104I/MF is usually 5 days.
3.What payment methods are accepted for SST26WF016BA-104I/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26WF016BA-104I/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26WF016BA-104I/MF?
SST26WF016BA-104I/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26WF016BA-104I/MF 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 SST26WF016BA-104I/MF?
For technical support, including SST26WF016BA-104I/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26WF016BA-104I/MF requirements.
6.How does Aetrix verify that SST26WF016BA-104I/MF is sourced from the original manufacturer or authorized distributors?
All SST26WF016BA-104I/MF 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 SST26WF016BA-104I/MF meets industry standards.
7.What is the process for return or replacement of SST26WF016BA-104I/MF?
All SST26WF016BA-104I/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26WF016BA-104I/MF, 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 SST26WF016BA-104I/MF part is unused and in its original packaging.
Return procedure for SST26WF016BA-104I/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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