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Microchip Technology SST26VF032B-104I/TD
- Part No.:
- SST26VF032B-104I/TD
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
SST26VF032B-104I/TD.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 24TBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,118
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Product details
Overview
SST26VF032B-104I/TD from Microchip Technology is a 32-Mbit Serial Quad I/O™ (SQI™) Flash memory IC operating at up to 104 MHz (2.7–3.6 V), organized in uniform 4-Kbyte sectors with flexible block protection, 256-byte page programming, and 100,000 write/erase endurance. It serves as nonvolatile code/data storage in microcontroller boot loaders and firmware update systems.
For engineers reviewing the SST26VF032B-104I/TD datasheet, SST26VF032B-104I/TD pinout, SST26VF032B-104I/TD application, or SST26VF032B-104I/TD equivalent, key selection criteria include SPI/SQI protocol compatibility, industrial temperature support (–40°C to +85°C), WDFN-8 package footprint, hardware write-protection via WP# pin, and 2-Kbyte OTP Security ID for device authentication.
Technical Context
The SST26VF032B-104I/TD implements a six-wire SQI interface (SIO[3:0], SCK, CE#, VDD, VSS) with configurable I/O mode via IOC bit in Configuration register; default power-up state enables SPI mode with WP# and HOLD# active. It uses proprietary SuperFlash® split-gate CMOS technology enabling 18 ms sector erase and 35 ms chip erase.
It supports dual-mode operation: traditional SPI (x1/x2) and high-speed SQI (x4) protocols with Mode 0/Mode 3 clock polarity compatibility, and includes dedicated status and configuration registers for real-time BUSY polling, write suspend/resume, and volatile/nonvolatile block lock-down control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte), sufficient for full MCU firmware images and parameter tables |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V - enables 416 MB/s effective throughput in x4 SQI mode |
| Operating Voltage | 2.7–3.6 V - single-supply operation compatible with 3.3 V system rails |
| Endurance | 100,000 program/erase cycles - supports field firmware updates over product lifetime |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage |
| Temperature Range | Industrial: –40°C to +85°C - qualified for embedded industrial control and networking equipment |
| Package | 8-contact WDFN (6 mm × 5 mm) - low-profile, thermally efficient surface-mount footprint |
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 during command sequence and write operations |
| SIO0/SI | Serial Data Input | Default SPI input pin; latches data on rising SCK edge; reconfigured as SIO0 in SQI mode |
| SIO1/SO | Serial Data Output | Default SPI output pin; shifts data out on falling SCK edge; reconfigured as SIO1 in SQI mode |
| WP#/SIO2 | Write-Protect / Quad I/O | In SPI mode: hardware write-protection control (with WPEN=1); in SQI mode: bidirectional data line SIO2 |
| HOLD#/SIO3 | Hold / Quad I/O | In SPI mode: pauses serial communication without reset; in SQI mode: bidirectional data line SIO3 |
| SCK | Serial Clock | Timing reference; commands/addresses sampled on rising edge, data shifted out on falling edge |
| VDD | Power Supply | 2.7–3.6 V supply input; decoupling capacitor required per layout guidelines |
| VSS | Ground | Reference ground plane connection; critical for signal integrity and EMI performance |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4-bit multiplexed data transfer (SIO[3:0]), quadrupling bandwidth vs. standard SPI at same clock frequency |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus overlay blocks (8-Kbyte, 32-Kbyte, 64-Kbyte) allow granular firmware partitioning and OTA update staging |
| Write-Suspend Capability | Allows interruption of ongoing program/erase to service time-critical reads from other memory regions |
| OTP Security ID | 2-Kbyte area with factory-programmed 64-bit unique ID + user-programmable segment for secure device binding and anti-cloning |
| Hardware Write Protection | WP# pin (enabled by WPEN bit) prevents accidental writes to Block Protection and Configuration registers during power transitions |
Applications
| Secure Boot Loader | Firmware Over-the-Air (OTA) Update |
|---|---|
Use Scenario: Storing immutable bootloader code and public key certificates in protected memory sectors. IC Role / Device Role / Timing Role: Nonvolatile storage for first-stage boot code execution and cryptographic verification prior to application load. Use Value: Prevents unauthorized firmware injection via hardware write-lock and OTP Security ID binding to trusted execution environment. | Use Scenario: Hosting dual firmware images (active + standby) with atomic swap capability during wireless update. IC Role / Device Role / Timing Role: High-reliability storage for versioned firmware binaries and update metadata with sector-level erase granularity. Use Value: Enables safe rollback and atomic activation using 4-Kbyte sector erase and 256-byte page programming without interrupting system operation. |
| Industrial HMI Display | Network Edge Router |
Use Scenario: Storing GUI assets, font libraries, and localized language strings for touch-based human-machine interfaces. IC Role / Device Role / Timing Role: High-bandwidth serial flash supporting rapid image loading and dynamic resource swapping. Use Value: 104 MHz SQI interface delivers >400 MB/s effective read throughput, reducing UI latency and improving responsiveness. | Use Scenario: Holding boot code, configuration profiles, and packet filtering rule sets in carrier-grade access equipment. IC Role / Device Role / Timing Role: Industrial-temperature qualified nonvolatile memory for mission-critical network initialization and failover recovery. Use Value: –40°C to +85°C rating and 100-year data retention ensure uninterrupted operation in uncontrolled telecom cabinets. |
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 W25Q32JVSIQ | 32 Mbit, 133 MHz max, standard SPI only (no SQI), no OTP Security ID, 100K endurance | Lacks quad I/O acceleration and hardware security features; suitable where cost sensitivity outweighs speed/security needs | Select when SQI bandwidth and device authentication are not required; verify pinout compatibility (SOIC-8 vs WDFN-8) |
| Cypress S25FL132K0XMFI010 | 32 Mbit, 108 MHz max, supports both SPI and QPI modes, includes 64-bit unique ID but no user-programmable OTP area | Offers QPI (quad peripheral interface) instead of SQI; lacks nVWLDR permanent lock-down and 2-Kbyte Security ID space | Choose for QPI-native host controllers; confirm IOC configuration behavior differs from SST26VF032B's default SPI startup |
Compared with W25Q32JVSIQ and S25FL132K0XMFI010, the SST26VF032B-104I/TD uniquely combines 104 MHz SQI throughput, factory-unique + user-programmable Security ID, and nonvolatile write-lock-down for tamper-resistant firmware storage - making it optimal for secure, high-performance embedded boot applications.
Availability
SST26VF032B-104I/TD is available at Aetrix Electronics and suitable for industrial control systems, network infrastructure equipment, and secure embedded boot loaders requiring stable component supply and long-term lifecycle support.
Supply support for SST26VF032B-104I/TD 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 Inc. is a leading provider of microcontrollers, analog components, and Flash memory solutions, serving industrial, automotive, and communications markets with vertically integrated silicon and software platforms.
The SST26VF032B-104I/TD belongs to Microchip's Serial Quad I/O™ Flash family, designed specifically for high-speed, secure, and reliable code storage in resource-constrained embedded systems requiring fast boot times and firmware integrity assurance.
FAQ
What is the default I/O configuration at power-up for SST26VF032B-104I/TD?
The SST26VF032B-104I/TD powers up with IOC bit = 0 in the Configuration register, enabling SPI mode with WP# and HOLD# pins active and SIO2/SIO3 disabled. This allows immediate compatibility with legacy SPI hosts without configuration overhead. The SST26VF032B-104I/TD remains in this state until the IOC bit is explicitly set to '1' to enable SQI functionality.
Does SST26VF032B-104I/TD support both SPI and SQI protocols simultaneously?
No - the SST26VF032B-104I/TD operates in either SPI mode (x1/x2) or SQI mode (x4), selected via the IOC bit. When IOC = 0, only SI/SO/WP#/HOLD# are functional; when IOC = 1, SIO[3:0] become active and WP#/HOLD# are repurposed. The SST26VF032B-104I/TD does not support concurrent dual-mode operation or automatic protocol switching.
How is hardware write protection implemented on SST26VF032B-104I/TD?
Hardware write protection on SST26VF032B-104I/TD requires both WPEN = 1 (nonvolatile bit) and WP# pin driven low. This combination disables writes to the Block Protection and Configuration registers only - program/erase of memory array remains unaffected. The SST26VF032B-104I/TD defaults with WPEN = 0, so WP# is inactive until explicitly enabled via WRSR instruction.
What is the purpose and structure of the Security ID in SST26VF032B-104I/TD?
The SST26VF032B-104I/TD includes a 2-Kbyte Security ID area comprising a factory-programmed 64-bit unique identifier (read-only) and a user-programmable segment. It is accessed via RSID/PSID/LSID commands and can be permanently locked with LSID to prevent further writes. The SST26VF032B-104I/TD uses this for device authentication, license binding, and anti-counterfeiting in secure boot chains.
Can SST26VF032B-104I/TD perform erase or program operations while another memory region is being read?
Yes - the SST26VF032B-104I/TD supports Write-Suspend functionality. A WRSU command pauses an active program or erase operation, allowing immediate read access to any unprotected memory region. The suspended operation resumes upon WRRE command. This enables real-time data access during background firmware updates, a capability confirmed in the SST26VF032B-104I/TD datasheet Section 4.0.
SST26VF032B-104I/TD Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 1.5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TBGA (6x8)
SST26VF032B-104I/TD FAQ
1.How can I place an order for SST26VF032B-104I/TD through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032B-104I/TD 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 SST26VF032B-104I/TD reliable?
The price and inventory of SST26VF032B-104I/TD are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF032B-104I/TD is usually 5 days.
3.What payment methods are accepted for SST26VF032B-104I/TD?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032B-104I/TD transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032B-104I/TD?
SST26VF032B-104I/TD orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032B-104I/TD 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 SST26VF032B-104I/TD?
For technical support, including SST26VF032B-104I/TD datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032B-104I/TD requirements.
6.How does Aetrix verify that SST26VF032B-104I/TD is sourced from the original manufacturer or authorized distributors?
All SST26VF032B-104I/TD 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 SST26VF032B-104I/TD meets industry standards.
7.What is the process for return or replacement of SST26VF032B-104I/TD?
All SST26VF032B-104I/TD units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032B-104I/TD, 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 SST26VF032B-104I/TD part is unused and in its original packaging.
Return procedure for SST26VF032B-104I/TD:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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