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Microchip Technology SST26WF016BA-104I/SN
- Part No.:
- SST26WF016BA-104I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST26WF016BA-104I/SN.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,251
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Product details
Overview
SST26WF016BA-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 operates at up to 104 MHz, supports x1/x2/x4 SPI and full SQI protocols, features uniform 4 KByte sectors, and delivers 100,000 program/erase cycles with >100-year data retention in industrial temperature range (-40°C to +85°C).
For engineers reviewing the SST26WF016BA-104I/SN datasheet, SST26WF016BA-104I/SN pinout, SST26WF016BA-104I/SN application, or SST26WF016BA-104I/SN equivalent, key selection considerations include its factory-default disabled HOLD#/WP# pins, 8-contact WDFN (6 mm × 5 mm) package, SQI vs. SPI mode configuration via IOC bit, and hardware/software block protection architecture for secure firmware storage.
Technical Context
This device implements Microchip's SuperFlash® technology with split-gate cells and thick-oxide tunneling, enabling faster erase (18 ms sector, 35 ms chip) and lower energy per operation than conventional NOR flash. Its dual-mode interface supports backward-compatible SPI (Mode 0/3) and high-throughput SQI using multiplexed SIO[3:0] pins.
The SST26WF016BA-104I/SN integrates configurable protection logic including volatile lock-down (LBPR), non-volatile write-lock lock-down (nVWLDR), and factory-programmed 64-bit Security ID. Its default power-up state has IOC=1, disabling WP# and HOLD# pins-distinguishing it from the SST26WF016B variant-and requires explicit EQIO command to enable quad I/O mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized in uniform 4 KByte sectors and overlay blocks |
| Operating Voltage | 1.65–1.95 V - enables direct interfacing with 1.8 V logic without level shifting |
| Max Clock Frequency | 104 MHz - supports high-speed burst reads (linear or wrap-around) in both SPI and SQI modes |
| Erase Endurance | 100,000 cycles minimum - ensures long-term reliability for firmware update partitions |
| Data Retention | Greater than 100 years - suitable for unattended industrial and automotive applications |
| Active Read Current | 15 mA typical @ 104 MHz - defines peak power budget during code execution from flash |
| Deep Power-Down | 2.5 μA typical - enables ultra-low standby power in battery-backed systems |
| Temperature Range | Industrial: -40°C to +85°C - qualified for extended environmental operation |
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 chip select; must remain low throughout command sequence and data transfer |
| SIO0 (SI) | Serial Data Input | Default SPI input pin; becomes bidirectional SIO[0] in quad mode after EQIO command and IOC=1 |
| SIO1 (SO) | Serial Data Output | Default SPI output pin; becomes bidirectional SIO[1] in quad mode after EQIO command and IOC=1 |
| SIO2 (WP#) | Write Protect / Quad I/O | Hardware write-protect input in SPI mode; functions as SIO[2] in SQI mode (IOC=1); disabled by default at power-up |
| SIO3 (HOLD#) | Hold / Quad I/O | Pauses serial communication in SPI mode; functions as SIO[3] in SQI mode (IOC=1); disabled by default at power-up |
| SCK | Serial Clock | Timing reference for all serial transfers; sampled on rising edge for input, driven on falling edge for output |
| VDD | Power Supply | 1.65–1.95 V supply rail; decoupling required near pin for stable high-frequency operation |
| VSS | Ground | Reference ground for all I/O and internal circuitry; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4× throughput vs. standard SPI at same clock frequency via multiplexed SIO[3:0], reducing bus congestion in resource-constrained MCUs |
| Flexible Block Protection | Independent software lock-down of 8× 8 KByte, 2× 32 KByte, and 30× 64 KByte blocks - supports secure boot partitioning and field-upgrade isolation |
| Security ID with OTP | 2 KByte dedicated space containing factory-programmed 64-bit unique ID plus user-programmable area - enables device authentication and license binding |
| Write-Suspend Capability | Allows interruption of active Program or Erase operations to service higher-priority reads - critical for real-time deterministic response in safety-critical systems |
| Deep Power-Down Mode | Reduces current to 2.5 μA while preserving memory contents - extends battery life in portable and IoT edge nodes |
| SuperFlash® Technology | Delivers 18 ms sector erase and 35 ms chip erase - cuts firmware update time and improves system responsiveness during reprogramming |
Applications
| Secure Boot Storage | Firmware Over-the-Air (FOTA) |
|---|---|
Use Scenario: Storing immutable bootloader and root-of-trust keys in tamper-resistant memory during MCU power-on initialization. IC Role / Device Role / Timing Role: Non-volatile code storage with hardware-enforced read/write protection and one-time programmable Security ID for cryptographic identity binding. Use Value: Prevents unauthorized firmware modification and enables verified boot chain through factory-unique 64-bit identifier and permanent lock-down capability. | Use Scenario: Receiving, validating, and staging updated application firmware in connected medical devices or smart meters. IC Role / Device Role / Timing Role: Dual-bank capable flash memory supporting atomic swap between active and update partitions using suspend/resume and fast 35 ms chip erase. Use Value: Enables zero-downtime updates with guaranteed rollback integrity and <100 ms erase latency for 16 Mbit images. |
| Industrial HMI Code Storage | Automotive Telematics Logging |
Use Scenario: Hosting GUI assets, localization strings, and configuration profiles in human-machine interface panels deployed in factory automation. IC Role / Device Role / Timing Role: High-reliability serial flash with >100-year data retention and 100,000-cycle endurance for infrequently updated but mission-critical UI resources. Use Value: Eliminates field failures due to data corruption over 15+ year product lifecycles under thermal cycling and EMI stress. | Use Scenario: Capturing CAN bus diagnostic logs and vehicle event data in telematics control units with limited power budget. IC Role / Device Role / Timing Role: Low-power flash memory operating at 2.5 μA deep power-down current and supporting burst writes during intermittent wake-up windows. Use Value: Extends battery backup runtime to >30 days while maintaining timestamped crash-data integrity across 10,000+ ignition cycles. |
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-IQ | 1.8 V, 16 Mbit, QPI/DTR support, 133 MHz max, no built-in Security ID OTP | Lacks factory-programmed unique ID and non-volatile lock-down register; uses different status/config register map | Select when highest clock speed and DTR mode are prioritized over cryptographic identity and permanent block lockdown. |
| Cypress S25FL116K0XMFI011 | 1.8 V, 16 Mbit, HyperBus interface, 108 MHz, integrated ECC, no SQI mode | Uses parallel-like HyperBus instead of serial quad I/O; includes on-die error correction but no Security ID space | Select when system-level bandwidth exceeds SPI/SQI limits and ECC-managed reliability is required over firmware authentication. |
Compared with Winbond W25Q16JW-IQ and Cypress S25FL116K0XMFI011, the SST26WF016BA-104I/SN uniquely combines factory-unique 64-bit Security ID, non-volatile write-lock lock-down, and SQI protocol flexibility - making it optimal for secure, field-upgradable embedded systems where identity binding and protection permanence are design requirements.
Availability
SST26WF016BA-104I/SN is available at Aetrix Electronics and suitable for industrial HMI, automotive telematics, medical FOTA, and secure boot applications requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.
Supply support for SST26WF016BA-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 memory solutions, serving industrial, automotive, and consumer markets with vertically integrated silicon and development tools.
The SST26WF016BA-104I/SN belongs to Microchip's Serial Quad I/O™ (SQI™) flash family, engineered for high-performance, low-voltage embedded systems needing secure, reliable, and pin-efficient non-volatile memory with flexible protection and fast update capabilities.
FAQ
What is the default I/O configuration of the SST26WF016BA-104I/SN at power-up?
The SST26WF016BA-104I/SN powers up with the IOC bit set to '1' in its Configuration Register, disabling the WP# and HOLD# pins and enabling SIO2/SIO3 for quad I/O operation. This distinguishes it from the SST26WF016B variant (IOC=0 at power-up) and requires issuing the EQIO command before using SQI-specific instructions like SQOR or SQIOR. The IOC setting persists until changed via WRCR.
Does the SST26WF016BA-104I/SN support both SPI and SQI protocols simultaneously?
No - the SST26WF016BA-104I/SN operates in either SPI mode (x1/x2/x4) or SQI mode, selected via the IOC bit and EQIO command. In SPI mode (IOC=0), pins function as SI/SO/WP#/HOLD#; in SQI mode (IOC=1), all four SIO[3:0] pins become bidirectional. The device does not perform concurrent SPI and SQI transactions - mode selection is static per power cycle unless reconfigured.
How is hardware write protection implemented on the SST26WF016BA-104I/SN?
Hardware write protection on the SST26WF016BA-104I/SN requires both the WPEN bit (non-volatile, default=0) set to '1' and the WP# pin driven low - but only in SPI single/dual-bit mode (IOC=0). Since the SST26WF016BA-104I/SN defaults to IOC=1, WP# is disabled at power-up and must be reconfigured via WRCR to enable hardware protection. The Lock-Down Block-Protection Register (LBPR) command provides volatile lock-down that overrides WP# functionality.
What is the purpose of the Security ID feature in the SST26WF016BA-104I/SN?
The SST26WF016BA-104I/SN includes a 2 KByte Security ID (Sec ID) space comprising a factory-programmed 64-bit unique identifier and a user-programmable segment. This enables device-level authentication, license binding, and secure boot verification. The LSID command permanently locks the entire Sec ID space, and neither factory nor user portions can be erased - ensuring persistent cryptographic identity for anti-counterfeiting and firmware integrity enforcement.
Can the SST26WF016BA-104I/SN perform read operations during an active erase or program cycle?
Yes - the SST26WF016BA-104I/SN supports Write-Suspend functionality. By issuing the WRSU command, an ongoing Program or Erase operation can be paused, allowing immediate Read access to other memory regions. After servicing the read request, WRRE resumes the suspended operation. This capability ensures deterministic real-time response in safety-critical applications where background flash maintenance must not block foreground data access.
SST26WF016BA-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
SST26WF016BA-104I/SN FAQ
1.How can I place an order for SST26WF016BA-104I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26WF016BA-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 SST26WF016BA-104I/SN reliable?
The price and inventory of SST26WF016BA-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 SST26WF016BA-104I/SN is usually 5 days.
3.What payment methods are accepted for SST26WF016BA-104I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26WF016BA-104I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26WF016BA-104I/SN?
SST26WF016BA-104I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26WF016BA-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 SST26WF016BA-104I/SN?
For technical support, including SST26WF016BA-104I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26WF016BA-104I/SN requirements.
6.How does Aetrix verify that SST26WF016BA-104I/SN is sourced from the original manufacturer or authorized distributors?
All SST26WF016BA-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 SST26WF016BA-104I/SN meets industry standards.
7.What is the process for return or replacement of SST26WF016BA-104I/SN?
All SST26WF016BA-104I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST26WF016BA-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 SST26WF016BA-104I/SN part is unused and in its original packaging.
Return procedure for SST26WF016BA-104I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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