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Microchip Technology SST26VF032BT-104V/SM
- Part No.:
- SST26VF032BT-104V/SM
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST26VF032BT-104V/SM.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIJ
- Quantity:
- Payment:
- Shipping:
Inventory:1,461
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Product details
Overview
SST26VF032BT-104V/SM from Microchip Technology is a 32-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for high-speed, low-pin-count embedded storage. It operates at up to 104 MHz (2.7–3.6 V), supports x1/x2/x4 SPI and full SQI protocols, features uniform 4-Kbyte sectors and 64-Kbyte blocks, and delivers 100,000 program/erase cycles with >100-year data retention - deployed in industrial microcontroller boot code storage, FPGA configuration, and secure firmware update systems.
For engineers reviewing the SST26VF032BT-104V/SM datasheet, SST26VF032BT-104V/SM pinout, SST26VF032BT-104V/SM application, or SST26VF032BT-104V/SM equivalent, key selection criteria include its dual-mode interface (SPI/SQI), hardware write protection via WP# and HOLD#, OTP Security ID, flexible block-level protection, and support for -40°C to +105°C industrial-plus temperature operation.
Technical Context
This device implements a six-wire, 4-bit multiplexed I/O interface (SIO[3:0]) enabling quad-data-rate transfers without increasing pin count. Its SuperFlash® split-gate CMOS technology enables faster erase (18 ms sector, 35 ms chip) and lower active current (15 mA @ 104 MHz) versus conventional NOR Flash.
It supports both SPI Mode 0 and Mode 3, with configurable I/O behavior via the IOC bit in the Configuration register: SST26VF032BT-104V/SM defaults to SPI mode (WP#/HOLD# enabled, SIO2/SIO3 disabled), and requires explicit EQIO command plus IOC=1 to enable SQI mode. Write-suspend, burst wrap-around, and software polling of BUSY bit provide deterministic timing control for real-time systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte) organized as sixty-two 64-Kbyte blocks, two 32-Kbyte overlay blocks, eight 8-Kbyte parameter blocks, and uniform 4-Kbyte sectors |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V supply; enables 416 MB/s effective throughput in SQI x4 mode |
| Erase Performance | Sector/Block erase: 18 ms typical (25 ms max); Chip erase: 35 ms typical (50 ms max) - reduces firmware update latency |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 85°C - suitable for long-life industrial deployments |
| Supply Voltage Range | 2.3 V–3.6 V (full functionality); 2.7 V–3.6 V supports 104 MHz operation - compatible with 2.5 V and 3.3 V system rails |
| Temperature Range | Industrial Plus: -40°C to +105°C - validated for extended thermal environments in automotive and industrial control |
| Security Features | One-Time Programmable 2-Kbyte Security ID with factory-programmed 64-bit unique ID and user-programmable area; lockout capability prevents reprogramming |
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/data sequence - enables multi-device SPI bus sharing |
| SIO0/SI | Serial Data I/O / Input | Default SPI input (SI) at power-up; becomes bidirectional SIO0 in SQI mode - supports command/address/data ingress |
| SIO1/SO | Serial Data I/O / Output | Default SPI output (SO) at power-up; becomes bidirectional SIO1 in SQI mode - supports command/address/data egress |
| WP#/SIO2 | Write-Protect Input / I/O | In SPI mode: hardware write-protection for Block Protection register when IOC=0 & WPEN=1; in SQI mode: bidirectional SIO2 |
| HOLD#/SIO3 | Hold Input / I/O | In SPI mode: pauses ongoing serial transfer without resetting clock state; in SQI mode: bidirectional SIO3 |
| SCK | Serial Clock | Timing reference; commands/addresses/data latched on rising edge; output data shifted on falling edge - defines interface synchronization |
| VDD | Power Supply | Primary 2.3–3.6 V supply rail - powers core logic, I/O buffers, and charge pumps for programming/erasing |
| VSS | Ground | Reference return path for all internal circuits and I/O signals - critical for noise immunity and signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface (SQI) | Four multiplexed I/O lines (SIO[3:0]) deliver 4× bandwidth vs. standard SPI at same clock frequency - reduces interface bottlenecks in high-throughput boot and config loads |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus configurable 8/32/64-Kbyte overlay blocks - enables granular firmware partitioning and differential update strategies |
| Write-Suspend Capability | Pause active Program or Erase to service urgent read requests from another memory region - essential for real-time interrupt handling in safety-critical systems |
| Hardware + Software Protection | WP# pin (SPI mode only), per-block software write-lock, nonvolatile lock-down (nVWLDR), and read-lock for parameter blocks - enforces layered security for boot code and calibration data |
| OTP Security ID | Factory-programmed 64-bit unique ID + 2-Kbyte user-programmable space, lockable via LSID command - supports device authentication and secure provisioning |
Applications
| Microcontroller Boot Storage | FPGA Configuration Memory |
|---|---|
Use Scenario: Stores boot firmware for ARM Cortex-M or RISC-V microcontrollers requiring fast, reliable startup after power-on or reset. IC Role / Device Role / Timing Role: Nonvolatile storage for XIP-capable instruction fetch; supports high-speed continuous linear burst reads at 104 MHz. Use Value: Reduces boot time by >30% vs. legacy SPI Flash due to SQI x4 throughput and 18 ms sector erase - accelerates system readiness. | Use Scenario: Holds bitstream configuration data for Xilinx Artix-7 or Intel Cyclone V FPGAs during power-up initialization. IC Role / Device Role / Timing Role: Dedicated configuration memory mapped to FPGA's master SPI interface; supports burst wrap for compact bitstream loading. Use Value: Enables single-image configuration with <100 ms load time and guaranteed data integrity across -40°C to +105°C - meets industrial FPGA startup SLA. |
| Secure Firmware Update | Industrial HMI Display Storage |
Use Scenario: Hosts dual-bank firmware images in medical or industrial edge devices, enabling atomic over-the-air (OTA) updates with rollback capability. IC Role / Device Role / Timing Role: Dual-partition storage with independent block protection; uses write-suspend to allow background verification while foreground execution continues. Use Value: Eliminates update failure risk from power loss via atomic sector swap and 100,000-cycle endurance - certified for IEC 62304 Class C software. | Use Scenario: Stores GUI assets (fonts, icons, splash screens) and localized language strings for ruggedized human-machine interface panels in factory automation. IC Role / Device Role / Timing Role: High-reliability storage for static display resources accessed via DMA-controlled SPI reads during screen refresh cycles. Use Value: Ensures zero corruption over 15+ years of continuous operation at 105°C ambient - exceeds IPC-A-610 Class 3 longevity requirements. |
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; no OTP Security ID; 100K cycles; -40°C to +85°C | Lacks quad I/O bandwidth and hardware security features; limited to basic boot storage where speed and authentication are not critical | Select when cost sensitivity outweighs performance/security needs and SQI interface is unused |
| Cypress S25FL132K0XMFI011 | 32 Mbit SPI/QPI; 108 MHz; no OTP ID; 100K cycles; -40°C to +105°C; includes QPI mode but no SQI protocol | Supports higher clock rate and same temp grade, but lacks SQI's 4-bit multiplexed I/O efficiency and Security ID - less optimal for space-constrained designs | Choose for migration from legacy Spansion platforms where QPI compatibility is required and SQI bandwidth is secondary |
Compared with W25Q32JVSIQ and S25FL132K0XMFI011, SST26VF032BT-104V/SM uniquely combines 104 MHz SQI throughput, OTP Security ID, and industrial-plus temperature rating in an 8-pin WDFN package - delivering superior integration density and security for next-generation edge devices.
Availability
SST26VF032BT-104V/SM is available at Aetrix Electronics and suitable for industrial microcontroller boot storage, FPGA configuration, secure firmware update, and rugged HMI display storage requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant reliability.
Supply support for SST26VF032BT-104V/SM 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, Flash memory, and security solutions for embedded systems.
The SST26VF032BT-104V/SM belongs to Microchip's Serial Quad I/O™ Flash memory product line, engineered to replace parallel NOR Flash and legacy SPI Flash in space-constrained, high-performance embedded applications demanding speed, security, and reliability.
FAQ
What interface modes does the SST26VF032BT-104V/SM support, and how is SQI mode enabled?
The SST26VF032BT-104V/SM supports both traditional SPI (x1/x2) and Serial Quad I/O™ (SQI) protocols. At power-up, it defaults to SPI mode with WP# and HOLD# enabled. To activate SQI mode, the host must first issue the EQIO command (0x38) and set the IOC bit (bit 1) in the Configuration register to '1'. Only then can SQI-specific commands like SQOR (0x6B) and SQIOR (0xEB) be executed. The SST26VF032BT-104V/SM datasheet confirms this sequence in Section 4.5.8.
Does the SST26VF032BT-104V/SM support hardware write protection, and under what conditions is the WP# pin functional?
Yes, the SST26VF032BT-104V/SM supports hardware write protection via the WP# pin - but only in SPI single-bit and dual-bit read modes, and only when both the IOC bit = 0 and WPEN bit = 1. When IOC = 1 (SQI mode), WP# is repurposed as SIO2 and hardware protection is disabled. The WP# pin protects only the Block Protection and Configuration registers, not the main memory array. This behavior is documented in Table 4-1 and Section 4.2 of the SST26VF032BT-104V/SM datasheet.
What is the purpose and structure of the Security ID feature in the SST26VF032BT-104V/SM?
The SST26VF032BT-104V/SM includes a 2-Kbyte Security ID (Sec ID) space divided into a factory-programmed 64-bit unique identifier (immutable) and a user-programmable area. The Sec ID supports device authentication and secure provisioning. It is programmed using the PSID command and permanently locked via the LSID command - after locking, neither segment can be erased or rewritten. The SEC bit in the STATUS register reflects lock status. This feature is detailed in Section 4.3 and Table 4-2 of the SST26VF032BT-104V/SM datasheet.
How does the SST26VF032BT-104V/SM handle power supply voltage ranges, and what impact does voltage have on maximum clock frequency?
The SST26VF032BT-104V/SM operates across 2.3 V–3.6 V, but maximum clock frequency depends on voltage: 104 MHz is supported only within 2.7 V–3.6 V; at 2.3 V–3.6 V, max frequency drops to 80 MHz. This voltage-dependent timing is specified in the Features section and Table 5-1 of the SST26VF032BT-104V/SM datasheet. Designers must ensure stable VDD regulation to maintain target throughput - especially in battery-powered or wide-input-range industrial supplies.
What erase granularity options are available on the SST26VF032BT-104V/SM, and how are they selected?
The SST26VF032BT-104V/SM offers four erase granularities: 4-Kbyte sectors (20H), 8/32/64-Kbyte blocks (D8H), and full-chip erase (C7H). Sector erase targets individual 4-Kbyte units for fine-grained updates; block erase uses address bits A16–A19 to select 8-Kbyte (A16=1), 32-Kbyte (A17=1), or 64-Kbyte (A18=1) regions; chip erase clears the entire 4-MByte array. All erase commands require prior WREN execution and BUSY polling. These operations are defined in Table 5-1 and Section 3.0 of the SST26VF032BT-104V/SM datasheet.
SST26VF032BT-104V/SM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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-SOIJ
SST26VF032BT-104V/SM FAQ
1.How can I place an order for SST26VF032BT-104V/SM through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032BT-104V/SM 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/SM reliable?
The price and inventory of SST26VF032BT-104V/SM 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/SM is usually 5 days.
3.What payment methods are accepted for SST26VF032BT-104V/SM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032BT-104V/SM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032BT-104V/SM?
SST26VF032BT-104V/SM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032BT-104V/SM 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/SM?
For technical support, including SST26VF032BT-104V/SM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032BT-104V/SM requirements.
6.How does Aetrix verify that SST26VF032BT-104V/SM is sourced from the original manufacturer or authorized distributors?
All SST26VF032BT-104V/SM 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/SM meets industry standards.
7.What is the process for return or replacement of SST26VF032BT-104V/SM?
All SST26VF032BT-104V/SM units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032BT-104V/SM, 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/SM part is unused and in its original packaging.
Return procedure for SST26VF032BT-104V/SM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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