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Microchip Technology SST26VF064B-104V/SM
- Part No.:
- SST26VF064B-104V/SM
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST26VF064B-104V/SM.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIJ
- Quantity:
- Payment:
- Shipping:
Inventory:904
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Product details
Overview
SST26VF064B-104V/SM from Microchip Technology is a 64-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, 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 SST26VF064B-104V/SM datasheet, SST26VF064B-104V/SM pinout, SST26VF064B-104V/SM application, or SST26VF064B-104V/SM equivalent, key selection considerations include SPI/SQI protocol mode configuration, WP#/HOLD# pin behavior at power-up, 8-contact WDFN (6 mm × 5 mm) package compatibility, burst read support, and OTP Security ID programmability.
Technical Context
This device implements Microchip's proprietary SuperFlash® technology with split-gate cells and thick-oxide tunneling injectors, enabling lower program current and faster erase times versus conventional NOR Flash. It supports dual-mode operation: default SPI mode (x1/x2) after power-on reset, and configurable SQI mode (x4) via EQIO command and IOC bit setting.
The SST26VF064B-104V/SM features a 144-bit Block Protection Register (BPR) with per-block write/read lock control, volatile Write Protection Lock-Down (WPLD), and nonvolatile Write Lock Lock-Down (nVWLDR) for permanent protection. Its STATUS and Configuration registers provide real-time visibility into BUSY, WEL, WPLD, SEC, and IOC states - critical for robust firmware update sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MByte), directly mapped for MCU boot code and application firmware storage |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V; enables 416 MB/s effective throughput in Quad I/O mode |
| Erase Endurance | 100,000 cycles minimum per sector - sufficient for field firmware updates over 10+ years |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered industrial deployments |
| Supply Voltage Range | 2.3 V–3.6 V single supply - compatible with 2.5 V and 3.3 V system rails without level shifting |
| Operating Temperature | –40°C to +85°C (Industrial grade) - validated for use in factory automation and outdoor edge nodes |
| Security ID | 2 Kbyte OTP area with 64-bit factory-unique identifier - supports secure device authentication and anti-cloning |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low throughout command/data sequence - controls device activation timing in multi-flash systems |
| SO/SIO1 | Serial Data Output / Quad I/O 1 | Default SPI output pin; becomes bidirectional SIO1 in Quad I/O mode - requires IOC=1 for x4 operation |
| WP#/SIO2 | Write Protect Input / Quad I/O 2 | Hardware write-protection control for BPR/Config register when IOC=0 and WPEN=1; repurposed as SIO2 in SQI mode |
| VSS | Ground | Reference return path for all I/O and core logic - requires low-inductance connection to minimize noise during high-speed reads |
| VDD | Power Supply | 2.3–3.6 V core and I/O supply - decoupling capacitor (0.1 µF) required within 5 mm of pin for stable 104 MHz operation |
| HOLD#/SIO3 | Hold Input / Quad I/O 3 | Pauses ongoing SPI transfers without resetting clock state; disabled in SQI mode and repurposed as SIO3 when IOC=1 |
| SCK | Serial Clock | Timing reference for all commands; sampled on rising edge for input, drives output on falling edge - supports Mode 0 and Mode 3 |
| SI/SIO0 | Serial Data Input / Quad I/O 0 | Default SPI input pin; becomes bidirectional SIO0 in Quad I/O mode - primary command/address/data entry point |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O (SQI) Interface | Four multiplexed I/Os (SIO[3:0]) enable 4× bandwidth vs. standard SPI at same clock frequency - reduces pin count and PCB routing complexity |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus overlay blocks (8-Kbyte, 32-Kbyte, 64-Kbyte) allow granular firmware partitioning and partial updates without full chip erase |
| Write Suspend Capability | Interrupt active Program or Erase operations to service urgent reads - essential for real-time systems requiring concurrent access |
| OTP Security ID | Factory-programmed 64-bit unique ID + user-programmable 2-Kbyte space - enables cryptographic key binding and device identity attestation |
| Hardware Write Protection | WP# pin + WPEN bit combination provides tamper-resistant lock-down of protection registers - prevents unauthorized firmware modification |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Stores boot loader and safety-critical firmware for programmable logic controllers operating in harsh factory environments with wide temperature swings and EMI exposure. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with fast random-access read capability and deterministic 104 MHz SPI/SQI interface timing for deterministic boot latency. Use Value: 100-year data retention and –40°C to +85°C operation ensure firmware integrity across decades of unattended operation without refresh. |
Use Scenario: Holds boot image and sensor calibration data for automotive camera and radar modules requiring AEC-Q100 Grade 2 qualification. IC Role / Device Role / Timing Role: Secure, high-reliability flash memory supporting verified boot chain with OTP Security ID for hardware-rooted trust verification. Use Value: Factory-programmed 64-bit unique ID enables cryptographic binding of firmware images to specific ECUs - preventing counterfeit or mismatched software loads. |
| Medical IoT Edge Node Update Storage | Smart Energy Meter Code Repository |
Use Scenario: Hosts field-upgradable application firmware and configuration profiles for battery-powered portable diagnostic devices with infrequent but critical OTA updates. IC Role / Device Role / Timing Role: Dual-mode SPI/SQI interface allows legacy SPI host compatibility while enabling future high-speed updates via Quad I/O reconfiguration. Use Value: Write suspend functionality permits immediate response to sensor interrupts during background firmware writes - maintaining real-time responsiveness. |
Use Scenario: Stores metering firmware, tariff tables, and regulatory compliance certificates in utility-grade smart meters deployed in remote substations. IC Role / Device Role / Timing Role: Sector-level erase granularity (4-Kbyte) enables safe over-the-air patching of tariff logic without erasing calibration or security keys stored in protected parameter blocks. Use Value: Individual block write protection with permanent lock-down capability prevents unauthorized modification of revenue-critical parameters during field servicing. |
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 W25Q64JVSSIQ | 64 Mbit SPI-only (no SQI), 133 MHz max, no OTP Security ID, 2.7–3.6 V only | Lacks Quad I/O bandwidth and hardware-secured identity - suitable for cost-sensitive SPI-only designs without security requirements | Select when SQI performance and OTP ID are unnecessary; verify absence of hold/suspend needs in firmware flow |
| Cypress S25FL164K0XMFI010 | 64 Mbit, 85 MHz max, supports XIP (execute-in-place), no OTP Security ID, different block protection scheme | Enables direct code execution from flash - beneficial for memory-constrained MCUs; lacks factory-unique ID for device authentication | Choose for XIP-capable architectures needing reduced RAM footprint; confirm compatibility with existing SPI command set |
Compared with SST26VF064B-104V/SM, W25Q64JVSSIQ offers higher SPI speed but no SQI or OTP ID, while S25FL164K0XMFI010 supports XIP but omits hardware-secured identity - making SST26VF064B-104V/SM uniquely suited for secure, high-bandwidth, dual-mode embedded firmware storage.
Availability
SST26VF064B-104V/SM is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, medical IoT edge node updates, and smart energy meter code repositories requiring stable component supply across extended product lifecycles.
Supply support for SST26VF064B-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 Inc. is a global provider of microcontrollers, analog components, and Flash memory solutions, serving industrial, automotive, and communications markets with vertically integrated silicon and software platforms.
The SST26VF064B-104V/SM belongs to Microchip's Serial Quad I/O™ Flash family, designed specifically for high-reliability embedded systems requiring fast, secure, and flexible nonvolatile code and data storage with minimal pin count.
FAQ
What is the default I/O configuration mode for SST26VF064B-104V/SM at power-up?
The SST26VF064B-104V/SM powers up in SPI mode with WP# and HOLD# pins enabled (IOC = 0), and SIO2/SIO3 disabled. This default allows immediate compatibility with legacy SPI hosts. To enable Quad I/O, the host must issue the EQIO command and set the IOC bit in the Configuration register - a requirement explicitly defined in the DS20005119K datasheet Section 4.5.8.
Does SST26VF064B-104V/SM support both Mode 0 and Mode 3 SPI clock polarity/phasing?
Yes, SST26VF064B-104V/SM supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). In both modes, SIO[3:0] signals are sampled on the rising edge of SCK for input and driven after the falling edge for output. The distinction lies only in the idle state of SCK - low for Mode 0, high for Mode 3 - as confirmed in Section 4.0 of the official datasheet.
How does the Write Suspend feature function in SST26VF064B-104V/SM during active Program or Erase operations?
The SST26VF064B-104V/SM supports Write Suspend to pause an ongoing Program or Erase operation, allowing immediate access to another memory block or sector. When suspended, the BUSY bit clears and WSP/WSE bits in the STATUS register reflect the suspended state. Resuming requires issuing the Resume command - enabling deterministic real-time response in time-critical embedded applications without aborting long-duration writes.
What is the physical package type and footprint of SST26VF064B-104V/SM?
SST26VF064B-104V/SM uses an 8-contact WDFN package measuring 6 mm × 5 mm with exposed pad, specified in the "Packages Available" section of DS20005119K. Pin 1 is CE#, followed clockwise by SO/SIO1, WP#/SIO2, VSS, VDD, HOLD#/SIO3, SCK, and SI/SIO0 - matching the top-view diagram on page 4 of the datasheet. This compact, thermally enhanced package supports high-density PCB layouts.
Can the Security ID area of SST26VF064B-104V/SM be erased or rewritten after programming?
No - the Security ID area of SST26VF064B-104V/SM is permanently non-erasable. The 64-bit factory-programmed segment is immutable; the 2-Kbyte user-programmable segment can be written once per location using the PSID command, and locked permanently via LSID. Neither portion supports erase commands, and writing '0' to previously programmed locations has no effect - ensuring irreversible identity binding as documented in Section 4.3.
SST26VF064B-104V/SM 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:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 64Mbit
- Memory Organization:
- 8M 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
SST26VF064B-104V/SM FAQ
1.How can I place an order for SST26VF064B-104V/SM through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF064B-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 SST26VF064B-104V/SM reliable?
The price and inventory of SST26VF064B-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 SST26VF064B-104V/SM is usually 5 days.
3.What payment methods are accepted for SST26VF064B-104V/SM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF064B-104V/SM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF064B-104V/SM?
SST26VF064B-104V/SM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF064B-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 SST26VF064B-104V/SM?
For technical support, including SST26VF064B-104V/SM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF064B-104V/SM requirements.
6.How does Aetrix verify that SST26VF064B-104V/SM is sourced from the original manufacturer or authorized distributors?
All SST26VF064B-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 SST26VF064B-104V/SM meets industry standards.
7.What is the process for return or replacement of SST26VF064B-104V/SM?
All SST26VF064B-104V/SM units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF064B-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 SST26VF064B-104V/SM part is unused and in its original packaging.
Return procedure for SST26VF064B-104V/SM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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