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Microchip Technology SST26VF032BT-104V/MF
- Part No.:
- SST26VF032BT-104V/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF032BT-104V/MF.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,418
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Product details
Overview
SST26VF032BT-104V/MF from Microchip Technology is a 32-Mbit Serial Quad I/O™ (SQI™) Flash memory IC operating at 104 MHz (2.7–3.6 V), organized in uniform 4-Kbyte sectors with 100,000 write/erase cycles and >100-year data retention. It supports SPI x1/x2/x4 and SQI protocols, features hardware write protection via WP# and HOLD#, and integrates a factory-programmed 64-bit Security ID for secure boot in industrial embedded systems.
For engineers reviewing the SST26VF032BT-104V/MF datasheet, SST26VF032BT-104V/MF pinout, SST26VF032BT-104V/MF application, or SST26VF032BT-104V/MF equivalent, key selection considerations include its dual-mode interface (SPI default / configurable SQI), flexible block protection (8×8-KB + 2×32-KB + 62×64-KB), 8-contact WDFN package (6 mm × 5 mm), and AEC-Q100 Grade 2 qualification for automotive infotainment storage.
Technical Context
The SST26VF032BT-104V/MF implements Microchip's SuperFlash® technology with split-gate cells and thick-oxide tunneling, enabling lower program/erase energy versus conventional NOR Flash. Its six-wire SQI interface uses multiplexed SIO[3:0] for command/address/data transfer, delivering up to 4× throughput over standard SPI at identical clock frequency.
It supports Mode 0 and Mode 3 SPI timing, includes a 256-byte page-program capability, and provides end-of-write detection via BUSY bit polling. The device features two independent protection mechanisms: volatile Write Protection Lock-Down (LBPR) and nonvolatile nVWLDR-each permanently securing individual 8-KB, 32-KB, or 64-KB blocks against unauthorized modification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MB), enabling firmware storage for mid-complexity microcontrollers without external memory expansion |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V, supporting high-speed boot code execution and OTA update streaming |
| Interface Protocol | Configurable SPI (x1/x2/x4) and SQI (4-bit I/O), allowing backward compatibility and bandwidth scaling in same footprint |
| Erase Endurance | 100,000 cycles minimum per sector, suitable for field-upgradable firmware with frequent patch cycles |
| Data Retention | Greater than 100 years at 85°C, ensuring long-term reliability in unattended industrial gateways |
| Operating Voltage | 2.3–3.6 V single supply, compatible with both 2.5 V and 3.3 V system rails without level-shifting |
| Temperature Range | Industrial Plus: –40°C to +105°C, validated for under-hood automotive modules and outdoor edge controllers |
| Security ID | 2-KB OTP area with factory-programmed 64-bit unique ID + user-programmable segment, enabling cryptographic key binding and clone prevention |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, thermally enhanced for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low throughout full command sequence including address and data phases |
| SIO0/SI | Serial Data Input | Default SPI input (SI) or quad I/O bidirectional line (SIO0); latched on rising SCK edge |
| SIO1/SO | Serial Data Output | Default SPI output (SO) or quad I/O bidirectional line (SIO1); driven on falling SCK edge |
| WP#/SIO2 | Write-Protect / Quad I/O | In SPI mode: hardware write-protection control; in SQI mode: bidirectional data line (SIO2) |
| HOLD#/SIO3 | Hold / Quad I/O | In SPI mode: pauses ongoing serial transfer without reset; in SQI mode: bidirectional data line (SIO3) |
| SCK | Serial Clock | Timing reference for all serial transfers; supports Mode 0 (idle low) and Mode 3 (idle high) |
| VDD | Power Supply | 2.3–3.6 V main supply; decoupling capacitor required within 10 mm of pin |
| VSS | Ground | Reference return path; must be connected to low-impedance system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4× data throughput vs. SPI x1 at same clock rate, reducing boot time by up to 75% in high-frequency read scenarios |
| Flexible Block Protection | Independent lock-down of eight 8-KB parameter blocks, two 32-KB overlay blocks, and sixty-two 64-KB overlay blocks via OTP nVWLDR |
| Write-Suspend Capability | Allows interruption of active erase/program operations to service urgent reads from other sectors-critical for real-time firmware updates |
| Security ID with Lockout | Factory-unique 64-bit ID + 2-KB user space; LSID command permanently disables further programming, preventing tampering post-deployment |
| Low Active Power | 15 mA typical read current @ 104 MHz enables power-constrained applications like battery-backed IoT nodes |
| Burst Read Modes | Continuous linear and wrap-around bursts (8/16/32/64 bytes) optimize sequential instruction fetch for ARM Cortex-M boot ROMs |
Applications
| Automotive Infotainment | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing boot loader, OS kernel, and UI assets in head unit ECUs requiring fast cold-start response and AEC-Q100 compliance. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with SQI interface delivering sub-100 ms boot time and secure firmware authentication via Security ID. Use Value: Eliminates need for parallel NOR Flash or eMMC, reducing BOM cost and PCB area while meeting Grade 2 temperature and reliability requirements. | Use Scenario: Holding programmable logic controller firmware and configuration data in factory automation controllers exposed to wide thermal cycling. IC Role / Device Role / Timing Role: Field-upgradable firmware repository with sector-level erase granularity and 100,000-cycle endurance for daily patch deployments. Use Value: Enables zero-downtime firmware updates via background erase/suspend/resume, avoiding production line stoppages during maintenance windows. |
| Medical Diagnostic Imaging Boot | Smart Energy Meter Secure Boot |
Use Scenario: Hosting boot code and calibration tables in portable ultrasound devices where data integrity and rapid initialization are critical. IC Role / Device Role / Timing Role: Trusted boot source verified using factory-programmed Security ID and read-locked parameter blocks containing calibration constants. Use Value: Prevents unauthorized firmware replacement and ensures regulatory compliance (IEC 62304) through immutable identity binding and tamper-evident storage. | Use Scenario: Securing meter firmware and tariff tables in smart electricity meters deployed in harsh outdoor environments. IC Role / Device Role / Timing Role: High-reliability storage with >100-year data retention and AEC-Q100 Grade 3 qualification for extended field life without recalibration. Use Value: Guarantees accurate billing data persistence across 15+ year product lifetime, even at 125°C junction temperatures in sealed enclosures. |
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 SPI-only (no SQI), 133 MHz max, 2.7–3.6 V, 8-lead SOIC package only | Lacks quad I/O interface and Security ID; requires layout change for pin-compatible replacement | Select when SQI bandwidth is unnecessary and legacy SPI design reuse is prioritized over security features |
| Cypress S25FL132K0XMFI010 | 32-Mbit HyperBus interface (not SPI/SQI compatible), 166 MHz, 16-pin SOIC, no OTP Security ID | Requires HyperBus controller; incompatible pinout and protocol stack; higher pin count and cost | Choose only for new designs targeting Cypress PSoC or Traveo II platforms with native HyperBus support |
Compared with SST26VF032BT-104V/MF, W25Q32JVSIQ offers higher SPI clock speed but omits SQI acceleration and secure identity; S25FL132K0XMFI010 delivers greater bandwidth via HyperBus yet mandates controller redesign and forfeits factory-unique ID-making SST26VF032BT-104V/MF the optimal balance of performance, security, and drop-in upgrade path for SPI-based systems.
Availability
SST26VF032BT-104V/MF is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLC firmware storage, medical diagnostic imaging boot, and smart energy meter secure boot requiring stable component supply and long lifecycle assurance.
Supply support for SST26VF032BT-104V/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 memory solutions with emphasis on embedded control and security.
The SST26VF032BT-104V/MF belongs to Microchip's Serial Quad I/O™ Flash family, engineered to replace parallel NOR Flash in space-constrained, high-reliability applications demanding fast boot, secure identity, and automotive-grade operation.
FAQ
What is the default interface mode of SST26VF032BT-104V/MF at power-up?
The SST26VF032BT-104V/MF powers up in SPI mode with WP# and HOLD# enabled and SIO2/SIO3 disabled, per its SST26VF032B variant configuration. To activate SQI mode, the host must first set the IOC bit in the Configuration register using the RDCR/WRCR commands, then issue EQIO (38H). This ensures backward compatibility with existing SPI-based boot loaders without requiring hardware changes.
Does SST26VF032BT-104V/MF support both Mode 0 and Mode 3 SPI timing?
Yes, SST26VF032BT-104V/MF supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), determined by the idle state of SCK-low for Mode 0 and high for Mode 3. The device samples SIO[3:0] on the rising edge of SCK and drives outputs on the falling edge in both modes, enabling seamless integration with diverse host controllers including ARM, Renesas, and NXP MCUs.
How is hardware write protection implemented on SST26VF032BT-104V/MF?
SST26VF032BT-104V/MF implements hardware write protection via the WP# pin, which functions only in SPI single/dual-bit read mode when the IOC bit is '0' and WPEN bit is '1'. When WP# is pulled low under these conditions, it prohibits writes to the Block Protection and Configuration registers-but not to the main memory array. This allows safe in-system programming while protecting critical configuration bits from accidental overwrite.
Can SST26VF032BT-104V/MF perform concurrent read and write operations?
No, SST26VF032BT-104V/MF does not support true concurrent read/write. However, it supports write-suspend (WRSU/B0H) to pause an active erase or program operation, enabling immediate read access to other unprotected sectors. After servicing the read, WRRE (30H) resumes the suspended operation-providing pseudo-concurrency essential for real-time firmware updates without system freeze.
What is the purpose of the Security ID feature in SST26VF032BT-104V/MF?
The Security ID in SST26VF032BT-104V/MF comprises a factory-programmed 64-bit unique identifier and a 2-KB user-programmable area. It enables cryptographic binding of firmware images to specific hardware units and prevents cloning. Once locked via LSID (85H), the entire Security ID space becomes read-only-ensuring that boot verification keys or calibration data stored there cannot be altered in the field, fulfilling secure boot requirements for medical and industrial certifications.
SST26VF032BT-104V/MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WDFN (5x6)
SST26VF032BT-104V/MF FAQ
1.How can I place an order for SST26VF032BT-104V/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032BT-104V/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 SST26VF032BT-104V/MF reliable?
The price and inventory of SST26VF032BT-104V/MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF032BT-104V/MF is usually 5 days.
3.What payment methods are accepted for SST26VF032BT-104V/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032BT-104V/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032BT-104V/MF?
SST26VF032BT-104V/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032BT-104V/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 SST26VF032BT-104V/MF?
For technical support, including SST26VF032BT-104V/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032BT-104V/MF requirements.
6.How does Aetrix verify that SST26VF032BT-104V/MF is sourced from the original manufacturer or authorized distributors?
All SST26VF032BT-104V/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 SST26VF032BT-104V/MF meets industry standards.
7.What is the process for return or replacement of SST26VF032BT-104V/MF?
All SST26VF032BT-104V/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032BT-104V/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 SST26VF032BT-104V/MF part is unused and in its original packaging.
Return procedure for SST26VF032BT-104V/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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