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Microchip Technology SST26WF016B-104I/SN
- Part No.:
- SST26WF016B-104I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST26WF016B-104I/SN.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,685
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Product details
Overview
SST26WF016B-104I/SN from Microchip Technology is a 1.8V, 16 Mbit Serial Quad I/O (SQI) flash memory IC designed for high-speed, low-power embedded code storage and data logging. It supports 104 MHz max clock frequency, x1/x2/x4 SPI and SQI protocols, 4 KByte uniform sectors, and operates across -40°C to +85°C industrial temperature range in an 8-contact WDFN (6 mm × 5 mm) package.
For engineers reviewing the SST26WF016B-104I/SN datasheet, SST26WF016B-104I/SN pinout, SST26WF016B-104I/SN application, or SST26WF016B-104I/SN equivalent, key selection considerations include quad-I/O burst read capability, hardware write protection via WP# pin, deep power-down current of 2.5 μA, flexible block protection with OTP security ID, and compatibility with both Mode 0 and Mode 3 SPI timing.
Technical Context
The SST26WF016B-104I/SN implements a six-wire, 4-bit multiplexed serial interface (SIO[3:0]) supporting both legacy SPI and high-throughput SQI protocols. Its SuperFlash® split-gate cell architecture enables 100,000 program/erase cycles and >100-year data retention at 1.65–1.95 V supply.
It features dual-mode operation: default SPI mode after power-up (with SI/SO pins active), configurable to SQI mode via EQIO command. The device integrates dedicated status and configuration registers, supports write-suspend for concurrent access, and provides volatile/non-volatile block protection with factory-programmed 64-bit unique ID in its 2 KByte Security ID space.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized in uniform 4 KByte sectors and overlay blocks |
| Interface Protocol | Supports SPI (x1/x2) and SQI (x4) modes; compatible with Mode 0 and Mode 3 clock polarity/phase |
| Max Clock Frequency | 104 MHz - enables up to 416 MB/s effective throughput in SQI x4 mode |
| Supply Voltage | 1.65–1.95 V - single-supply operation optimized for low-voltage microcontroller systems |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 85°C |
| Power Consumption | 15 mA typical active read current @ 104 MHz; 2.5 μA deep power-down current |
| Erase Performance | Sector erase: 18 ms typ; chip erase: 35 ms typ - reduces firmware update latency |
| Security Features | One-time programmable 2 KByte Security ID with factory 64-bit unique ID and user-programmable area |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low enable signal; must remain low during full command sequence including address/data transfer |
| SIO0 (SI) | Serial Data Input | Default SPI input pin; latches commands/addresses/data on rising SCK edge; multiplexed as bidirectional SIO[0] in SQI mode |
| SIO1 (SO) | Serial Data Output | Default SPI output pin; shifts data out on falling SCK edge; multiplexed as bidirectional SIO[1] in SQI mode |
| WP# / SIO2 | Write Protect Input | Hardware write-protection control for Block-Protection and Configuration registers when IOC=0 and WPEN=1 |
| HOLD# / SIO3 | Hold Control Input | Pauses ongoing SPI transactions without resetting internal state; disabled in SQI mode and when IOC=1 |
| SCK | Serial Clock | Timing reference; commands/addresses/data latched on rising edge; output data shifted on falling edge |
| VDD | Power Supply | 1.65–1.95 V core supply; powers all internal logic and memory array |
| VSS | Ground | Reference ground for all I/O and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Burst Read | Enables continuous linear or wrap-around bursts (8/16/32/64 byte) at up to 104 MHz, quadrupling SPI bandwidth without extra pins |
| Flexible Block Protection | Software-configurable protection per 4 KByte sector, 8 KByte parameter blocks, and 32/64 KByte overlay blocks - supports secure boot and field firmware updates |
| Write-Suspend Capability | Allows temporary suspension of active Program or Erase operations to service higher-priority reads from other memory regions |
| Deep Power-Down Mode | Reduces standby current to 2.5 μA typical - critical for battery-powered IoT edge nodes requiring long sleep intervals |
| OTP Security ID | 2 KByte dedicated space with factory-programmed 64-bit unique identifier and lockable user area - enables device authentication and anti-cloning |
| SuperFlash® Technology | Split-gate cell design delivers 100K endurance and >100-year retention at 85°C - exceeds standard NOR flash reliability targets |
Applications
| Secure Boot Storage | Firmware Over-the-Air (FOTA) |
|---|---|
Use Scenario: Storing immutable bootloader code and cryptographic keys in industrial PLCs and medical devices. IC Role / Device Role / Timing Role: Non-volatile code storage with hardware write protection and OTP Security ID for root-of-trust verification. Use Value: Prevents unauthorized firmware modification via WP# pin and non-volatile lock-down; factory-unique ID enables secure key binding. | Use Scenario: Receiving and validating encrypted firmware updates in connected gateways and smart meters. IC Role / Device Role / Timing Role: High-reliability, low-power flash memory supporting fast burst reads and suspend/resume during background update validation. Use Value: 104 MHz SQI interface accelerates firmware download; write-suspend allows real-time system responsiveness during update. |
| Industrial HMI Display Cache | Automotive Telematics Logging |
Use Scenario: Caching GUI assets and localized language strings in human-machine interface panels operating in harsh environments. IC Role / Device Role / Timing Role: Temperature-stable, high-endurance flash memory with uniform 4 KByte sectors for efficient asset management. Use Value: -40°C to +85°C rating ensures operation in uncontrolled enclosures; 100K cycle endurance supports frequent UI asset swaps. | Use Scenario: Recording vehicle diagnostic events and GPS traces in telematics control units with limited power budget. IC Role / Device Role / Timing Role: Low-power, high-reliability data logger using deep power-down mode between event captures. Use Value: 2.5 μA deep power-down current extends battery life in always-on modules; >100-year retention preserves crash logs over vehicle lifetime. |
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 W25Q16JW | 1.8V 16 Mbit SPI flash with QPI/DTR support; no native SQI protocol; 133 MHz max clock; 100K endurance | Lacks SQI interface and Security ID; uses standard SPI quad I/O instead of Microchip's SQI-specific command set | Choose when SQI protocol compatibility is unnecessary and QPI/DTR timing suffices for host controller |
| Cypress S25FL116K | 1.8V 16 Mbit SPI flash with HyperBus option; 104 MHz max; 100K endurance; no OTP Security ID | Supports HyperFlash mode for higher bandwidth but requires different controller interface; lacks factory-programmed unique ID | Prefer when migrating to Cypress-compatible platforms or requiring HyperBus compatibility over SQI |
Compared with Winbond W25Q16JW and Cypress S25FL116K, the SST26WF016B-104I/SN uniquely combines native SQI protocol support, integrated 64-bit factory-unique Security ID, and hardware WP#/HOLD# pins enabled by default - making it optimal for secure, high-bandwidth embedded boot and update architectures where pin-count and trust assurance are critical.
Availability
SST26WF016B-104I/SN is available at Aetrix Electronics and suitable for industrial HMI, automotive telematics, and secure IoT edge device designs requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SST26WF016B-104I/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 leading provider of microcontrollers, analog components, and Flash memory solutions, serving industrial, automotive, and communications markets with vertically integrated silicon and software tools.
The SST26WF016B-104I/SN belongs to Microchip's Serial Quad I/O™ (SQI™) flash family, engineered specifically for high-performance, low-pin-count code storage in resource-constrained embedded systems requiring secure, reliable, and energy-efficient non-volatile memory.
FAQ
What is the primary interface protocol supported by the SST26WF016B-104I/SN?
The SST26WF016B-104I/SN supports both traditional SPI (x1/x2 modes) and Serial Quad I/O (SQI) protocols. It defaults to SPI mode after power-up and can be configured to SQI mode using the EQIO command. The SQI interface uses four multiplexed I/O lines (SIO[3:0]) to achieve up to 4× the bandwidth of standard SPI at the same 104 MHz clock frequency, enabling faster code execution and firmware updates in the SST26WF016B-104I/SN.
Does the SST26WF016B-104I/SN include hardware write protection, and how is it configured?
Yes, the SST26WF016B-104I/SN includes hardware write protection via the WP# pin. It functions only in SPI single/dual-bit read mode when the IOC bit is '0' and WPEN bit is '1'. The WP# pin protects only the Block-Protection and Configuration registers - not the main memory array. Factory default for SST26WF016B-104I/SN sets WPEN=0, disabling WP# at power-up; users must explicitly set WPEN=1 to activate this feature. This behavior is documented in the SST26WF016B-104I/SN datasheet Section 4.2.
What is the purpose and structure of the Security ID feature in the SST26WF016B-104I/SN?
The SST26WF016B-104I/SN includes a 2 KByte Security ID (Sec ID) space divided into a factory-programmed 64-bit unique identifier and a user-programmable area. The factory segment is one-time programmable and cannot be altered; the user area can be written using the PSID command and locked permanently with LSID. Once locked, no further writes are possible. This feature enables device authentication and secure key binding in applications requiring tamper resistance - a verified capability of the SST26WF016B-104I/SN per DS20005013D Section 4.3.
How does the SST26WF016B-104I/SN handle power management in low-power systems?
The SST26WF016B-104I/SN offers three low-power states: standby (10 μA typical), deep power-down (2.5 μA typical), and active read (15 mA @ 104 MHz). Deep power-down is entered via DPD command and exited with RDPD, preserving all register states. This enables ultra-low quiescent current in battery-operated devices while maintaining fast wake-up and deterministic resume - a key design advantage confirmed in the SST26WF016B-104I/SN electrical characteristics table (DS20005013D, Page 5).
Can the SST26WF016B-104I/SN suspend ongoing erase or program operations?
Yes, the SST26WF016B-104I/SN supports write-suspend functionality via the WRSU command. This allows an active Program or Erase operation to be paused so the host can perform urgent reads from unprotected memory regions. Suspension status is indicated by WSE (Erase) or WSP (Program) bits in the Status Register. Resume is triggered with WRRE. This capability is essential for real-time systems requiring guaranteed response latency - a confirmed feature of the SST26WF016B-104I/SN per Section 4.0 and Table 4-2 of its datasheet.
SST26WF016B-104I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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-SOIC
SST26WF016B-104I/SN FAQ
1.How can I place an order for SST26WF016B-104I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26WF016B-104I/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 SST26WF016B-104I/SN reliable?
The price and inventory of SST26WF016B-104I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26WF016B-104I/SN is usually 5 days.
3.What payment methods are accepted for SST26WF016B-104I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26WF016B-104I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26WF016B-104I/SN?
SST26WF016B-104I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26WF016B-104I/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 SST26WF016B-104I/SN?
For technical support, including SST26WF016B-104I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26WF016B-104I/SN requirements.
6.How does Aetrix verify that SST26WF016B-104I/SN is sourced from the original manufacturer or authorized distributors?
All SST26WF016B-104I/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 SST26WF016B-104I/SN meets industry standards.
7.What is the process for return or replacement of SST26WF016B-104I/SN?
All SST26WF016B-104I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST26WF016B-104I/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 SST26WF016B-104I/SN part is unused and in its original packaging.
Return procedure for SST26WF016B-104I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SST26WF016B-104I/SN Tags
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