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Microchip Technology SST26VF032B-104I/MF
- Part No.:
- SST26VF032B-104I/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF032B-104I/MF.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,960
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Product details
Overview
SST26VF032B-104I/MF from Microchip Technology is a 32-Mbit Serial Quad I/O™ (SQI™) Flash memory IC operating at 2.7V–3.6V, supporting 104 MHz SPI clock frequency and x1/x2/x4 serial protocols. It features uniform 4-Kbyte sectors, 100,000 program/erase cycles, and 100+ years data retention - deployed in industrial microcontroller boot code storage and firmware update modules.
For engineers reviewing the SST26VF032B-104I/MF datasheet, SST26VF032B-104I/MF pinout, SST26VF032B-104I/MF application, or SST26VF032B-104I/MF equivalent, key selection criteria include quad-I/O burst read capability, hardware write-protection via WP# pin, flexible sector/block erase granularity, and AEC-Q100 Grade 2 qualification for automotive control units.
Technical Context
The SST26VF032B-104I/MF implements a six-wire SQI interface with multiplexed SIO[3:0] pins enabling 4-bit bidirectional data transfer, delivering up to 4× throughput versus standard SPI at identical clock rates. Its SuperFlash® split-gate CMOS technology enables fast erase (18 ms sector, 35 ms chip) and low active current (15 mA @ 104 MHz).
Power-up defaults configure WP# and HOLD# as active, with IOC=0 - enforcing SPI-compatible operation until explicitly enabled for Quad I/O via EQIO command. The device integrates dual protection layers: volatile Block Protection Register (BPR) with lock-down capability and nonvolatile nVWLDR for permanent block write-locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte), organized in 4-Kbyte uniform sectors and configurable overlay blocks |
| Interface Protocol | Serial Peripheral Interface (SPI) Mode 0/3 and Serial Quad I/O™ (SQI) with x1/x2/x4 support |
| Max Clock Frequency | 104 MHz at 2.7V–3.6V supply; enables high-speed burst reads and fast firmware loading |
| Erase Performance | Sector/Block Erase: 18 ms typical; Chip Erase: 35 ms typical - reduces firmware update latency |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - suitable for field-upgradable systems |
| Supply Voltage Range | 2.7V–3.6V (standard); supports stable operation across industrial voltage rails without level-shifting |
| Operating Temperature | –40°C to +105°C (Industrial Plus grade), qualified to AEC-Q100 Grade 2 for automotive ECUs |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, surface-mountable with thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low enable signal; must remain low throughout command/data sequences to maintain device selectivity |
| SIO0/SI | Serial Data Input | Primary input for commands, addresses, and data in SPI mode; multiplexed as bidirectional SIO0 in SQI mode |
| SIO1/SO | Serial Data Output | Primary output for read data in SPI mode; multiplexed as bidirectional SIO1 in SQI mode |
| WP#/SIO2 | Write-Protect / Quad I/O Pin | Hardware write-protection control in SPI mode; reconfigured as SIO2 in Quad I/O after IOC=1 setting |
| HOLD#/SIO3 | Hold / Quad I/O Pin | Pauses ongoing SPI transfers without resetting state; reconfigured as SIO3 in Quad I/O after IOC=1 |
| SCK | Serial Clock | Timing reference; rising edge latches inputs, falling edge shifts out outputs - defines maximum interface speed |
| VDD | Power Supply | 2.7V–3.6V core supply; powers internal logic, flash array, and I/O buffers |
| VSS | Ground | Reference return path for all digital and analog circuitry; critical for noise immunity in high-speed serial operation |
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 416 MB/s effective throughput in x4 mode |
| Flexible Block Protection | Software-configurable write-lock per 4-Kbyte sector, 8-Kbyte parameter block, and 32/64-Kbyte overlay block - supports secure boot partitioning |
| Security ID with OTP | 2-Kbyte Security ID space: factory-programmed 64-bit unique ID + user-programmable area, lockable via LSID command |
| Write-Suspend Capability | Allows suspension of active Program or Erase operations to service higher-priority reads - essential for real-time firmware updates |
| Low-Power Standby | 15 µA typical standby current enables energy-efficient operation in battery-backed or always-on embedded systems |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Stores calibrated engine maps, diagnostic routines, and over-the-air (OTA) update images in AEC-Q100 Grade 2 qualified ECU hardware. IC Role / Device Role / Timing Role: Nonvolatile boot code and parameter storage with deterministic 104 MHz read access and hardware write-protection against corruption during power transients. Use Value: Ensures functional safety compliance via 100-year data retention and 100,000-cycle endurance under thermal cycling (-40°C to +105°C). |
Use Scenario: Holds ladder logic firmware, configuration databases, and HMI assets in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: High-reliability firmware repository supporting field updates via SPI or SQI interface with sector-level erase isolation. Use Value: Reduces maintenance downtime through fast 18 ms sector erase and suspend/resume functionality during live system operation. |
| Medical Imaging Bootloader | Smart Energy Meter Firmware |
Use Scenario: Hosts certified bootloader and cryptographic keys for DICOM-compliant imaging devices requiring traceable firmware integrity. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage using OTP Security ID and permanent nVWLDR lock-down for critical boot partitions. Use Value: Meets IEC 62304 software lifecycle requirements via factory-preprogrammed 64-bit ID and irreversible lockout capability. |
Use Scenario: Stores metrology firmware, tariff tables, and communication stack binaries in ANSI C12.22-compliant smart meters operating in extended temperature ranges. IC Role / Device Role / Timing Role: Industrial-grade Flash memory supporting 125°C extended temperature operation with 4-Kbyte sector granularity for incremental updates. Use Value: Enables regulatory compliance via AEC-Q100 Grade 3 qualification and >100-year data retention for lifetime meter calibration data. |
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, 2.7V–3.6V, 4-Kbyte sectors, no OTP Security ID | Lacks quad-I/O acceleration and hardware security features; suitable for cost-sensitive SPI-only designs | Select when SQI bandwidth and Security ID are not required; verify pinout compatibility (SOIC-8 vs WDFN-8) |
| Cypress S25FL132K0XMFI010 | 32 Mbit, 104 MHz, supports both SPI and QPI modes, includes SFDP support, no nVWLDR or factory OTP ID | Offers QPI protocol but lacks permanent lock-down register and factory-unique identifier for secure boot | Prefer for designs needing SFDP auto-configuration; avoid where irreversible block protection or traceable ID is mandated |
Compared with SST26VF032B-104I/MF, W25Q32JVSIQ trades SQI performance and security for lower unit cost and broader distributor availability, while S25FL132K0XMFI010 provides enhanced configuration flexibility via SFDP but omits the factory-programmed Security ID essential for cryptographic key binding.
Availability
SST26VF032B-104I/MF is available at Aetrix Electronics and suitable for industrial control systems, automotive electronic control units, and medical device firmware storage requiring stable component supply and long-term lifecycle assurance.
Supply support for SST26VF032B-104I/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 for industrial, automotive, and aerospace applications.
The SST26VF032B-104I/MF belongs to Microchip's Serial Quad I/O™ Flash family, engineered to deliver high-speed, low-power, and secure nonvolatile storage for resource-constrained embedded systems requiring deterministic firmware execution.
FAQ
What is the default I/O configuration of SST26VF032B-104I/MF at power-up?
The SST26VF032B-104I/MF powers up with IOC=0, enabling WP# and HOLD# pins for SPI-mode hardware write-protection and hold functionality, while disabling SIO2 and SIO3. This ensures backward compatibility with legacy SPI controllers without requiring initialization sequence changes. The SST26VF032B-104I/MF remains in SPI mode until EQIO command is issued and IOC bit is set to '1'.
Does SST26VF032B-104I/MF support both SPI and SQI protocols simultaneously?
No - SST26VF032B-104I/MF operates exclusively in either SPI mode (with SI/SO or dual-I/O) or SQI mode (with SIO[3:0]), selected via the IOC bit in the Configuration register. When IOC=0, only SPI instructions (e.g., 03H, 0BH) are valid; when IOC=1, SQI-specific commands (e.g., 6BH, EBH, 32H) become active. The SST26VF032B-104I/MF does not time-multiplex protocols.
How is hardware write-protection implemented on SST26VF032B-104I/MF?
Hardware write-protection on SST26VF032B-104I/MF uses the WP# pin in conjunction with the WPEN bit (nonvolatile) and IOC bit in the Configuration register. With IOC=0 and WPEN=1, asserting WP# low disables writes to the Block Protection and Configuration registers only - program/erase of memory array remains unaffected. The SST26VF032B-104I/MF defaults to WPEN=0 at power-up, disabling WP# function until explicitly enabled.
What is the purpose of the Security ID feature in SST26VF032B-104I/MF?
The SST26VF032B-104I/MF 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 authentication, secure boot binding, and firmware version tracking. Once locked via LSID command, the SST26VF032B-104I/MF prevents further writes to the Sec ID space - the factory ID is permanently immutable and cannot be erased or overwritten.
Can SST26VF032B-104I/MF perform erase or program operations while servicing read requests?
Yes - the SST26VF032B-104I/MF supports Write-Suspend functionality. A host can issue WRSU command to pause an active Program or Erase operation, then execute immediate read commands (e.g., 03H, 0BH) from unprotected memory regions. After completion, WRRE resumes the suspended operation. This enables real-time responsiveness in SST26VF032B-104I/MF-based systems without blocking critical data access.
SST26VF032B-104I/MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- 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:
- 8-WDFN (5x6)
SST26VF032B-104I/MF FAQ
1.How can I place an order for SST26VF032B-104I/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032B-104I/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 SST26VF032B-104I/MF reliable?
The price and inventory of SST26VF032B-104I/MF 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/MF is usually 5 days.
3.What payment methods are accepted for SST26VF032B-104I/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032B-104I/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032B-104I/MF?
SST26VF032B-104I/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032B-104I/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 SST26VF032B-104I/MF?
For technical support, including SST26VF032B-104I/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032B-104I/MF requirements.
6.How does Aetrix verify that SST26VF032B-104I/MF is sourced from the original manufacturer or authorized distributors?
All SST26VF032B-104I/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 SST26VF032B-104I/MF meets industry standards.
7.What is the process for return or replacement of SST26VF032B-104I/MF?
All SST26VF032B-104I/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032B-104I/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 SST26VF032B-104I/MF part is unused and in its original packaging.
Return procedure for SST26VF032B-104I/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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