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Microchip Technology SST26VF032BAT-104I/SM
- Part No.:
- SST26VF032BAT-104I/SM
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST26VF032BAT-104I/SM.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIJ
- Quantity:
- Payment:
- Shipping:
Inventory:1,248
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Product details
Overview
SST26VF032BAT-104I/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 104 MHz (2.7–3.6 V), supports x1/x2/x4 SPI and quad I/O protocols, features uniform 4-Kbyte sectors, and delivers 100,000 program/erase cycles with >100-year data retention. It is used in boot code storage for industrial microcontrollers requiring fast, reliable nonvolatile memory.
For engineers reviewing the SST26VF032BAT-104I/SM datasheet, SST26VF032BAT-104I/SM pinout, SST26VF032BAT-104I/SM application, or SST26VF032BAT-104I/SM equivalent, key selection criteria include its dual-mode interface (SPI/SQI), flexible block protection architecture, 8-lead SOIJ package compatibility, and industrial temperature range (–40°C to +85°C).
Technical Context
This device implements a six-wire, 4-bit multiplexed I/O interface supporting both traditional SPI (Mode 0/3) and SQI protocols - enabling up to 4× throughput versus standard SPI at identical clock frequency. Its SuperFlash® technology uses split-gate cells and thick-oxide tunneling for enhanced endurance and reduced erase energy.
The SST26VF032BAT-104I/SM defaults to Quad I/O mode at power-up (IOC = 1), disabling WP# and HOLD# while enabling SIO2/SIO3. It integrates a 18-bit Block Protection Register, nonvolatile Write Lock Lock-Down Register (nVWLDR), and 2-Kbyte Security ID with factory-programmed 64-bit unique identifier and user-programmable area.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte), organized as sixty-two 64-Kbyte blocks plus parameter overlay blocks |
| Interface Protocol | Supports x1/x2/x4 SPI and 4-bit SQI; IOC bit selects between SPI (WP#/HOLD# active) and SQI (SIO2/SIO3 active) |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V; enables high-throughput boot loading and firmware updates |
| 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 long-life industrial deployments |
| Supply Voltage Range | 2.3 V–3.6 V operation; single-supply write capability eliminates need for auxiliary voltage rails |
| Temperature Range | Industrial grade: –40°C to +85°C - validated for use in motor drives, PLCs, and edge gateways |
Pinout & Package
Package: 8-lead SOIJ (5.28 mm), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low during full command sequence including address/data transfer |
| SIO0/SI | Serial Data Input | Primary input for commands, addresses, and data in SPI mode; multiplexed bidirectional I/O in SQI mode |
| SIO1/SO | Serial Data Output | Primary output for read data in SPI mode; multiplexed bidirectional I/O in SQI mode |
| WP#/SIO2 | Write-Protect / Quad I/O Line 2 | In SPI mode: hardware write-protection control (when IOC=0, WPEN=1); in SQI mode: bidirectional data line |
| HOLD#/SIO3 | Hold / Quad I/O Line 3 | In SPI mode: pauses ongoing serial transfer without resetting state; in SQI mode: bidirectional data line |
| SCK | Serial Clock | Timing reference; inputs latched on rising edge, outputs shifted on falling edge |
| VDD | Power Supply | 2.3–3.6 V main supply; powers all internal logic and memory array |
| VSS | Ground | Reference return path for all signals and internal circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4-bit parallel data transfer over same 4 pins, doubling bandwidth vs. dual-I/O and quadrupling vs. standard SPI |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus configurable 8/32/64-Kbyte overlay blocks allow granular firmware partitioning and OTA update staging |
| Write-Suspend Capability | Allows interruption of active program/erase to service time-critical reads - critical for real-time boot loaders |
| Security ID with OTP Lock | Factory-programmed 64-bit unique ID + 2-Kbyte user area locked via LSID command prevents cloning and enables secure authentication |
| Hardware + Software Protection | Combines WP# pin control, volatile lock-down (LBPR), and nonvolatile nVWLDR for defense-in-depth against accidental or malicious writes |
Applications
| Boot Code Storage | Firmware Update Buffer |
|---|---|
Use Scenario: Stores primary bootloader and application firmware for ARM Cortex-M or RISC-V microcontrollers in industrial HMIs. IC Role / Device Role / Timing Role: Nonvolatile code execution source accessed via XIP or DMA-based load; supports fast linear burst reads at 104 MHz. Use Value: Reduces boot time by >35% vs. legacy SPI Flash due to SQI protocol and continuous burst mode. | Use Scenario: Holds staged firmware images during over-the-air (OTA) updates in connected gateways and edge controllers. IC Role / Device Role / Timing Role: Dual-bank storage with independent sector protection enables atomic swap and rollback without system downtime. Use Value: Eliminates risk of bricking during field updates using suspend/resume and global unlock commands. |
| Secure Device Identity | Parameter Configuration Store |
Use Scenario: Provides cryptographic root-of-trust in medical IoT sensors and automotive telematics modules. IC Role / Device Role / Timing Role: Hosts immutable 64-bit factory ID and customer-programmed security keys; locked via LSID to prevent tampering. Use Value: Enables hardware-bound certificate issuance and secure key derivation per device instance. | Use Scenario: Retains calibrated sensor offsets, motor tuning parameters, and calibration coefficients across power cycles in factory automation equipment. IC Role / Device Role / Timing Role: Stores infrequently modified but mission-critical configuration data in protected 8-Kbyte parameter blocks. Use Value: Prevents corruption from brown-out events or software faults using individual block write-lock and permanent lock-down. |
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 Security ID, 100K endurance | Lacks quad I/O acceleration and hardware security features; suited for cost-sensitive, non-secure designs | Select when SQI bandwidth and device identity are unnecessary and BOM cost is primary constraint |
| Cypress S25FL132K0XMFI011 | 32 Mbit, 104 MHz, supports octal DTR mode, no nVWLDR or OTP Security ID, industrial temp | Offers higher theoretical bandwidth via octal mode but requires more PCB routing; lacks permanent lock-down capability | Choose for systems needing future upgrade path to octal interfaces, where permanent block lock-down is not required |
Compared with W25Q32JVSIQ and S25FL132K0XMFI011, the SST26VF032BAT-104I/SM uniquely combines SQI performance, factory-unique Security ID, and nonvolatile write-lock lock-down - making it optimal for secure, high-reliability industrial firmware storage where update integrity and device authenticity are mandatory.
Availability
SST26VF032BAT-104I/SM is available at Aetrix Electronics and suitable for industrial HMIs, motor control drives, and edge gateway firmware storage requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for SST26VF032BAT-104I/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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with a focus on reliability, longevity, and embedded system integration.
The SST26VF032BAT-104I/SM belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for high-performance, secure, and space-constrained embedded applications demanding fast boot, robust firmware updates, and hardware-enforced data integrity.
FAQ
What interface modes does the SST26VF032BAT-104I/SM support, and how is mode selection controlled?
The SST26VF032BAT-104I/SM supports both standard SPI (x1/x2) and Serial Quad I/O™ (SQI) modes. Mode selection is determined by the I/O Configuration (IOC) bit in the Configuration register: IOC = 0 enables SPI mode with WP# and HOLD# functionality; IOC = 1 enables SQI mode with SIO2/SIO3 active. The SST26VF032BAT-104I/SM ships with IOC = 1 preconfigured, so it powers up in SQI mode unless reprogrammed. Commands like EQIO (38H) and SQOR (6BH) require IOC = 1 to execute.
How does the SST26VF032BAT-104I/SM implement hardware write protection, and what is the role of the WP# pin?
The SST26VF032BAT-104I/SM implements hardware write protection through coordinated use of the WP# pin, WPEN bit (nonvolatile), and IOC bit. When IOC = 0 and WPEN = 1, asserting WP# low disables writes to the Block Protection and Configuration registers. The SST26VF032BAT-104I/SM defaults to IOC = 1, so WP# is disabled at power-up; to enable it, the IOC bit must first be cleared to 0. WP# has no effect on memory array writes - only on protection register writes.
What is the purpose and structure of the Security ID feature in the SST26VF032BAT-104I/SM?
The SST26VF032BAT-104I/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 is programmed using the PSID command and permanently locked via the LSID command, which sets the SEC bit in the STATUS register to '1' irreversibly. This enables device-specific authentication and secure key binding - critical for anti-cloning and trusted firmware deployment in the SST26VF032BAT-104I/SM.
Can the SST26VF032BAT-104I/SM suspend an ongoing erase or program operation, and how is this managed?
Yes, the SST26VF032BAT-104I/SM supports write-suspend functionality via the WRSU command. Issuing WRSU during an active erase or program operation halts it, allowing immediate access to other memory regions for time-critical reads. The suspended operation resumes upon receipt of WRRE. Status bits WSE (bit 2) and WSP (bit 3) in the STATUS register indicate suspension state. This capability is essential for deterministic real-time behavior in systems using the SST26VF032BAT-104I/SM for boot code and runtime data.
What package and temperature grade is specified for the SST26VF032BAT-104I/SM, and how does it differ from other variants in the SST26VF032B family?
The SST26VF032BAT-104I/SM uses an 8-lead SOIJ package (5.28 mm) and is rated for the industrial temperature range (–40°C to +85°C). The "I" suffix denotes industrial grade; "T" indicates tape-and-reel packaging; "-104" specifies 104 MHz maximum clock speed at 2.7–3.6 V. Unlike the "B" variant (which powers up in SPI mode), the "BA" variant - including SST26VF032BAT-104I/SM - powers up in SQI mode (IOC = 1), disabling WP#/HOLD# and enabling SIO2/SIO3 by default.
SST26VF032BAT-104I/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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIJ
SST26VF032BAT-104I/SM FAQ
1.How can I place an order for SST26VF032BAT-104I/SM through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032BAT-104I/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 SST26VF032BAT-104I/SM reliable?
The price and inventory of SST26VF032BAT-104I/SM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF032BAT-104I/SM is usually 5 days.
3.What payment methods are accepted for SST26VF032BAT-104I/SM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032BAT-104I/SM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032BAT-104I/SM?
SST26VF032BAT-104I/SM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032BAT-104I/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 SST26VF032BAT-104I/SM?
For technical support, including SST26VF032BAT-104I/SM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032BAT-104I/SM requirements.
6.How does Aetrix verify that SST26VF032BAT-104I/SM is sourced from the original manufacturer or authorized distributors?
All SST26VF032BAT-104I/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 SST26VF032BAT-104I/SM meets industry standards.
7.What is the process for return or replacement of SST26VF032BAT-104I/SM?
All SST26VF032BAT-104I/SM units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032BAT-104I/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 SST26VF032BAT-104I/SM part is unused and in its original packaging.
Return procedure for SST26VF032BAT-104I/SM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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