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Microchip Technology SST26WF016BT-104I/SN
- Part No.:
- SST26WF016BT-104I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST26WF016BT-104I/SN.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,309
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Product details
Overview
SST26WF016BT-104I/SN 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 sectors, 100,000 write/erase endurance, and industrial temperature range (–40°C to +85°C). It serves as non-volatile program/data storage in microcontroller boot loaders, firmware update buffers, and embedded system configuration memory.
For engineers reviewing the SST26WF016BT-104I/SN datasheet, SST26WF016BT-104I/SN pinout, SST26WF016BT-104I/SN application, or SST26WF016BT-104I/SN equivalent, key selection criteria include SQI/x4 SPI interface compatibility, deep power-down current (2.5 μA), write-suspend capability, OTP Security ID, and hardware write-protection via WP# pin in SPI mode.
Technical Context
The SST26WF016BT-104I/SN implements a six-wire, 4-bit multiplexed I/O interface supporting both Mode 0 and Mode 3 SPI timing, with configurable IOC bit enabling SIO[3:0] quad operation. Its SuperFlash® split-gate cell architecture enables faster erase (18 ms sector, 35 ms chip) and lower energy per operation versus conventional flash.
It integrates dual protection layers: volatile Block-Protection Register (BPR) with lock-down (LBPR) and non-volatile Write-Lock Lock-Down Register (nVWLDR), plus hardware WP# control gated by WPEN/IOC bits. The device defaults to SPI mode at power-up and supports seamless transition to SQI mode via EQIO command.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized in 4 KByte uniform sectors and overlay blocks |
| Interface Protocol | Serial Quad I/O (SQI) and SPI x1/x2/x4 modes; backward-compatible with standard SPI commands |
| Max Clock Frequency | 104 MHz - enables high-speed burst reads up to 416 MB/s effective throughput in x4 mode |
| Write Endurance | 100,000 cycles minimum - supports frequent firmware updates and logging in industrial controllers |
| Data Retention | Greater than 100 years - ensures long-term reliability for unattended embedded deployments |
| Supply Voltage | 1.65–1.95 V - single-supply operation compatible with low-voltage microcontrollers and SoCs |
| Deep Power-Down Current | 2.5 μA typical - reduces system standby power in battery-powered IoT edge nodes |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, industrial-grade.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low signal initiating all serial commands; must remain low during full command sequence |
| SIO0–SIO3 | Quad I/O Data Lines | Multiplexed bidirectional pins for command/address/data in SQI mode; default to SI/SO in SPI mode |
| SCK | Serial Clock | Rising edge latches input; falling edge outputs data; supports Mode 0 (low idle) and Mode 3 (high idle) |
| WP# | Hardware Write Protect | Active-low pin disabling writes to Block-Protection and Configuration registers when WPEN=1 and IOC=0 |
| HOLD# | Communication Pause | Halts ongoing SPI transfers without resetting internal state; disabled in SQI mode and SST26WF016BA variant |
| VDD | Power Supply | 1.65–1.95 V supply input; decoupling capacitor required per layout guidelines |
| VSS | Ground | Reference ground for all I/O and core logic; requires low-impedance connection to system GND plane |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell design delivers 18 ms sector erase and 35 ms chip erase - cuts firmware update time vs. legacy flash |
| Write-Suspend | Allows interruption of active Program/Erase to service higher-priority read requests - essential for real-time systems |
| OTP Security ID | 2 KByte space with factory-programmed 64-bit unique ID and user-programmable area - enables secure device authentication |
| Dual Protection Architecture | Volatile BPR + non-volatile nVWLDR + hardware WP# - provides layered, field-upgradeable security for firmware partitions |
| Burst Read Modes | Continuous linear and wrap-around bursts (8/16/32/64 byte) - optimizes sequential code execution from flash |
Applications
| Boot Code Storage | Firmware Update Buffer |
|---|---|
Use Scenario: Storing primary bootloader and application firmware images for ARM Cortex-M or RISC-V microcontrollers. IC Role / Device Role / Timing Role: Non-volatile storage accessed during cold start and reset sequences; supports XIP (execute-in-place) via high-speed SQI read. Use Value: 104 MHz SQI interface enables sub-100 ms boot time; 4 KByte sector granularity allows atomic firmware patching. | Use Scenario: Holding validated firmware images prior to safe over-the-air (OTA) installation in industrial gateways. IC Role / Device Role / Timing Role: Dual-bank staging memory where one bank runs active firmware while the other receives new image. Use Value: Write-suspend allows immediate response to critical alarms during background OTA download; deep power-down (2.5 μA) extends battery life between updates. |
| Configuration Parameter Store | Secure Identity Module |
Use Scenario: Retaining calibrated sensor offsets, network credentials, and device-specific settings across power cycles. IC Role / Device Role / Timing Role: Persistent parameter storage with selective block protection to prevent accidental corruption of calibration data. Use Value: Individual 8 KByte parameter block write-lock + permanent nVWLDR lock-down ensures tamper-resistant storage of sensitive settings. | Use Scenario: Providing cryptographically verifiable device identity in smart metering and access control systems. IC Role / Device Role / Timing Role: Secure ID repository with factory-programmed 64-bit unique identifier and locked user-programmable segment. Use Value: LSID command permanently locks Security ID space - prevents cloning or credential theft in deployed field units. |
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 W25Q16JVSNIQ | 1.8 V, 16 Mbit, standard SPI only (no SQI); 133 MHz max clock; no OTP Security ID | Lacks quad I/O bandwidth and hardware-level secure identity; suitable for cost-sensitive SPI-only designs | Select when SQI performance and Security ID are not required; verify pinout compatibility (SOIC-8 vs WDFN-8) |
| Cypress S25FL116K0XMFI011 | 1.8 V, 16 Mbit, supports both SPI and QPI; 85 MHz max; includes 64-bit unique ID but no user-programmable Sec ID space | Offers QPI mode instead of SQI; lacks nVWLDR and deep power-down (5 μA vs 2.5 μA) | Choose for QPI-based host controllers; confirm if 5 μA standby meets system power budget |
Compared with W25Q16JVSNIQ and S25FL116K0XMFI011, the SST26WF016BT-104I/SN delivers superior SQI bandwidth, lower deep power-down current, and a fully programmable 2 KByte Security ID with permanent lock-down - making it optimal for secure, low-power, high-throughput embedded firmware storage.
Availability
SST26WF016BT-104I/SN is available at Aetrix Electronics and suitable for industrial control HMI panels, medical diagnostic firmware storage, and automotive telematics module boot memory requiring stable component supply and long lifecycle support.
Supply support for SST26WF016BT-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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions for industrial, automotive, and consumer applications.
The SST26WF016BT-104I/SN belongs to Microchip's Serial Quad I/O™ flash family, engineered for high-speed, low-power, and secure non-volatile storage in resource-constrained embedded systems.
FAQ
What is the operating voltage range for the SST26WF016BT-104I/SN?
The SST26WF016BT-104I/SN operates from 1.65 V to 1.95 V. This narrow 1.8 V nominal range ensures compatibility with modern ultra-low-power microcontrollers and SoCs while maintaining robust noise margins. Operation outside this range may cause unreliable read/write behavior or damage the device. The SST26WF016BT-104I/SN does not support 3.3 V interfaces and requires level-shifting if interfaced with higher-voltage peripherals.
Does the SST26WF016BT-104I/SN support both SPI and SQI protocols?
Yes, the SST26WF016BT-104I/SN supports full backward-compatible SPI (x1/x2/x4) and native Serial Quad I/O (SQI) protocols. It powers up in SPI mode and transitions to SQI mode upon receiving the EQIO command. The IOC bit in the Configuration Register controls pin mapping: when IOC=0, WP# and HOLD# are active; when IOC=1, SIO2/SIO3 replace them for quad operation. The SST26WF016BT-104I/SN achieves 104 MHz in both modes but delivers up to 4× higher throughput in SQI due to 4-bit multiplexed I/O.
How is hardware write protection implemented on the SST26WF016BT-104I/SN?
Hardware write protection on the SST26WF016BT-104I/SN uses the WP# pin in conjunction with the non-volatile WPEN bit and IOC bit. WP# is active-low and only functional in SPI single/dual mode when IOC=0 and WPEN=1. When asserted, it disables writes to the Block-Protection and Configuration registers only - not main memory array writes. The SST26WF016BT-104I/SN defaults with WPEN=0 (WP# disabled), and WPEN must be explicitly set to '1' to enable hardware protection. This design prevents accidental lockout during initial programming.
What is the purpose and structure of the Security ID feature in the SST26WF016BT-104I/SN?
The SST26WF016BT-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 ID is immutable and used for device authentication; the user area supports custom keys or certificates. Both segments are permanently locked using the LSID command - once locked, no further writes are possible. The SST26WF016BT-104I/SN supports PSID for programming and RSID for reading, enabling secure boot chain integration in certified industrial and medical systems.
Can the SST26WF016BT-104I/SN suspend an ongoing erase or program operation?
Yes, the SST26WF016BT-104I/SN supports write-suspend functionality via the WRSU command. This allows pausing an active sector/block/chip erase or page program to service urgent read requests - critical for deterministic real-time response. After suspension, the WSE or WSP bit in the Status Register indicates the suspended state. Resumption uses the WRRE command. The SST26WF016BT-104I/SN maintains full context across suspend/resume cycles, ensuring data integrity and eliminating need for host-side state tracking.
SST26WF016BT-104I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- 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:
- 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
SST26WF016BT-104I/SN FAQ
1.How can I place an order for SST26WF016BT-104I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26WF016BT-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 SST26WF016BT-104I/SN reliable?
The price and inventory of SST26WF016BT-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 SST26WF016BT-104I/SN is usually 5 days.
3.What payment methods are accepted for SST26WF016BT-104I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26WF016BT-104I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26WF016BT-104I/SN?
SST26WF016BT-104I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26WF016BT-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 SST26WF016BT-104I/SN?
For technical support, including SST26WF016BT-104I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26WF016BT-104I/SN requirements.
6.How does Aetrix verify that SST26WF016BT-104I/SN is sourced from the original manufacturer or authorized distributors?
All SST26WF016BT-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 SST26WF016BT-104I/SN meets industry standards.
7.What is the process for return or replacement of SST26WF016BT-104I/SN?
All SST26WF016BT-104I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST26WF016BT-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 SST26WF016BT-104I/SN part is unused and in its original packaging.
Return procedure for SST26WF016BT-104I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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