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Microchip Technology SST26VF032B-104V/SM70SVAO
- Part No.:
- SST26VF032B-104V/SM70SVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST26VF032B-104V/SM70SVAO.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
SST26VF032B-104V/SM70SVAO 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, and supporting both SPI and SQI protocols for embedded firmware storage. It delivers 15 mA typical active read current, 15 µA standby current, and 100,000 program/erase cycles with >100-year data retention.
For engineers reviewing the SST26VF032B-104V/SM70SVAO datasheet, SST26VF032B-104V/SM70SVAO pinout, SST26VF032B-104V/SM70SVAO application, or SST26VF032B-104V/SM70SVAO equivalent, key selection considerations include quad-I/O burst performance, hardware write-protection via WP#/HOLD# pins, OTP Security ID support, industrial temperature range (–40°C to +85°C), and WDFN-8 package compatibility.
Technical Context
This device implements Microchip's SuperFlash® technology with split-gate cells and thick-oxide tunneling injectors, enabling faster erase (18 ms sector, 35 ms chip) and lower total energy per operation versus conventional Flash. Its dual-mode interface supports Mode 0/Mode 3 SPI and SQI protocols using shared SIO[3:0] pins, with factory-default IOC=0 enabling WP#/HOLD# functionality in SPI mode.
The internal architecture includes a 2-Kbyte OTP Security ID space (64-bit factory preprogrammed + user-programmable), configurable Block Protection Register (BPR) with volatile lock-down (LBPR) and nonvolatile write-lock lock-down (nVWLDR), and status monitoring via BUSY/WEL/WPLD bits - all accessible through standardized command sets including RDSR, WRSR, RBPR, WBPR, PSID, and LSID.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 MByte), sufficient for boot code, firmware images, and configuration data in resource-constrained systems. |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V; enables high-throughput firmware updates and fast XIP execution in SQI mode. |
| Erase Endurance | 100,000 cycles minimum per sector; supports field-upgradable firmware with long service life. |
| Data Retention | Greater than 100 years; ensures reliable storage of calibration data, security keys, and system parameters over product lifetime. |
| Operating Voltage | 2.3–3.6 V single supply; compatible with modern low-voltage microcontrollers and PMIC outputs without level-shifting. |
| Temperature Range | Industrial: –40°C to +85°C; validated for use in automotive ECUs, industrial controllers, and outdoor IoT gateways. |
| Security ID | 2-Kbyte OTP area with 64-bit factory-unique identifier; enables secure device authentication and anti-cloning in production. |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, surface-mount, thermal pad exposed on bottom for enhanced power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low enable signal; must remain low during full command sequence to prevent premature termination. |
| SIO0/SI | Serial Data Input | Default SPI input pin; latches commands/addresses/data on rising SCK edge; multiplexed as SIO0 in SQI mode. |
| SIO1/SO | Serial Data Output | Default SPI output pin; shifts data out on falling SCK edge; multiplexed as SIO1 in SQI mode. |
| WP#/SIO2 | Write-Protect / Quad I/O | In SPI mode (IOC=0): hardware write-protection control for BPR/Config register; in SQI mode (IOC=1): bidirectional data line. |
| HOLD#/SIO3 | Hold / Quad I/O | In SPI mode (IOC=0): pauses ongoing serial transfer without resetting clock state; in SQI mode (IOC=1): bidirectional data line. |
| SCK | Serial Clock | Master-generated clock; rising edge samples inputs, falling edge outputs data; supports Mode 0 (low idle) and Mode 3 (high idle). |
| VDD | Power Supply | 2.3–3.6 V supply input; decoupling capacitor required near pin for stable high-frequency operation. |
| VSS | Ground | Reference ground for all I/O and core logic; must be low-impedance connection to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4× data throughput vs. standard SPI at same clock frequency, reducing firmware load time and bus occupancy. |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus dedicated 8/32/64-Kbyte overlay blocks allow granular firmware partitioning and parameter storage. |
| Write-Suspend Capability | Allows interruption of active Program/Erase to service higher-priority reads, improving real-time system responsiveness. |
| Hardware Write Protection | WP# pin + WPEN bit combination prevents accidental writes to protection registers during power transitions or noise events. |
| OTP Security ID | Factory-programmed 64-bit unique ID + user-programmable 2-Kbyte space supports cryptographic key binding and secure provisioning. |
Applications
| Boot Code Storage | Firmware Update Storage |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image executed directly after MCU reset. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast random-access read capability and deterministic timing for XIP execution. Use Value: Enables reliable cold-start operation with verified integrity via checksums stored alongside code in protected sectors. | Use Scenario: Holding delta patches or full firmware images downloaded over CAN, USB, or wireless interfaces. IC Role / Device Role / Timing Role: High-bandwidth, endurance-rated storage for frequent reprogramming cycles during field upgrades. Use Value: Supports 100,000+ erase cycles and 104 MHz burst reads, minimizing update window and downtime in mission-critical systems. |
| Secure Device Identity | Configuration Parameter Storage |
Use Scenario: Binding cryptographic keys to hardware identity in automotive telematics or industrial edge nodes. IC Role / Device Role / Timing Role: One-time programmable storage of immutable device identifiers used in TLS handshake and attestation flows. Use Value: Leverages factory-preprogrammed 64-bit Security ID and lockable user area to prevent cloning and ensure traceability. | Use Scenario: Persisting calibration coefficients, sensor offsets, and network settings across power cycles in medical or test equipment. IC Role / Device Role / Timing Role: Sector-protected nonvolatile storage with individual block write-lock and permanent lock-down capability. Use Value: Prevents corruption of critical runtime parameters via hardware WP# pin and nVWLDR-based permanent protection. |
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 W25Q32JVSSIQ | 32 Mbit, 133 MHz max, standard SPI only (no SQI), no OTP Security ID, different command set and protection model. | Lacks quad-I/O acceleration and hardware-secured identity; suitable where cost and SPI compatibility outweigh speed/security needs. | Select when legacy SPI-only host interface exists and Security ID is not required. |
| Cypress S25FL132K0XMFI010 | 32 Mbit, 108 MHz max, supports both SPI and QPI modes, includes 64-bit unique ID but no user-programmable Security ID space. | Offers QPI instead of SQI; lacks nVWLDR and full 2-Kbyte OTP area; different erase granularity (4-Kbyte uniform only). | Choose for QPI-compatible hosts needing high-speed read but not requiring user-configurable secure identity storage. |
Compared with W25Q32JVSSIQ and S25FL132K0XMFI010, SST26VF032B-104V/SM70SVAO uniquely combines SQI protocol acceleration, factory-unique + user-programmable Security ID, and nonvolatile write-lock lock-down - making it optimal for secure, high-performance embedded firmware storage where identity binding and field upgrade resilience are mandatory.
Availability
SST26VF032B-104V/SM70SVAO is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLCs, and medical diagnostic devices requiring stable component supply, long-term lifecycle support, and AEC-Q100 Grade 2 qualification.
Supply support for SST26VF032B-104V/SM70SVAO 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 microcontroller, analog, FPGA, and memory solutions, serving automotive, industrial, communications, and consumer markets with vertically integrated silicon and software tools.
The SST26VF032B-104V/SM70SVAO belongs to Microchip's Serial Quad I/O™ Flash family, designed specifically for high-reliability embedded systems needing fast, secure, and low-power nonvolatile storage with robust protection against unauthorized access and corruption.
FAQ
What is the default I/O configuration for SST26VF032B-104V/SM70SVAO at power-up?
The SST26VF032B-104V/SM70SVAO powers up with IOC=0 in the Configuration register, enabling WP# and HOLD# pins for SPI mode operation while disabling SIO2 and SIO3. This allows immediate compatibility with legacy SPI hosts without requiring initialization commands. The SST26VF032B-104V/SM70SVAO must execute EQIO (38H) and set IOC=1 to activate quad-I/O functionality.
Does SST26VF032B-104V/SM70SVAO support both SPI and SQI protocols simultaneously?
No - SST26VF032B-104V/SM70SVAO operates in either SPI mode (x1/x2) or SQI mode (x4), selected via the IOC bit. When IOC=0, WP#/HOLD# are functional and SIO2/SIO3 are disabled; when IOC=1, SIO2/SIO3 become active data lines and WP#/HOLD# are disabled. The SST26VF032B-104V/SM70SVAO does not support concurrent dual-mode operation.
How is hardware write protection implemented on SST26VF032B-104V/SM70SVAO?
Hardware write protection on SST26VF032B-104V/SM70SVAO requires both WPEN=1 (nonvolatile) and WP#=low in SPI mode (IOC=0). This combination disables writes to the Block Protection and Configuration registers only - program/erase operations on unprotected memory remain unaffected. The SST26VF032B-104V/SM70SVAO ignores WP# during active Program/Erase sequences.
What is the purpose of the nonvolatile Write Lock Lock-Down Register (nVWLDR) in SST26VF032B-104V/SM70SVAO?
The nVWLDR in SST26VF032B-104V/SM70SVAO provides irreversible protection: writing '1' to any bit permanently locks the corresponding memory block's write-lock state in the Block Protection Register (BPR). Once set, that bit cannot be cleared - even by power cycling - ensuring tamper-proof firmware or calibration data storage. The SST26VF032B-104V/SM70SVAO uses E8H command to program nVWLDR.
Can SST26VF032B-104V/SM70SVAO be used in automotive applications requiring AEC-Q100 compliance?
Yes - SST26VF032B-104V/SM70SVAO is qualified per AEC-Q100 Grade 2 (–40°C to +105°C), making it suitable for engine control units, ADAS modules, and body electronics. Its 100,000-cycle endurance, >100-year data retention, and robust protection features meet automotive reliability requirements. The SST26VF032B-104V/SM70SVAO part number suffix confirms industrial-plus temperature grade and WDFN packaging.
SST26VF032B-104V/SM70SVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIJ
SST26VF032B-104V/SM70SVAO FAQ
1.How can I place an order for SST26VF032B-104V/SM70SVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF032B-104V/SM70SVAO 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-104V/SM70SVAO reliable?
The price and inventory of SST26VF032B-104V/SM70SVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF032B-104V/SM70SVAO is usually 5 days.
3.What payment methods are accepted for SST26VF032B-104V/SM70SVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF032B-104V/SM70SVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF032B-104V/SM70SVAO?
SST26VF032B-104V/SM70SVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF032B-104V/SM70SVAO 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-104V/SM70SVAO?
For technical support, including SST26VF032B-104V/SM70SVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF032B-104V/SM70SVAO requirements.
6.How does Aetrix verify that SST26VF032B-104V/SM70SVAO is sourced from the original manufacturer or authorized distributors?
All SST26VF032B-104V/SM70SVAO 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-104V/SM70SVAO meets industry standards.
7.What is the process for return or replacement of SST26VF032B-104V/SM70SVAO?
All SST26VF032B-104V/SM70SVAO units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF032B-104V/SM70SVAO, 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-104V/SM70SVAO part is unused and in its original packaging.
Return procedure for SST26VF032B-104V/SM70SVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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