SST26VF064B-104I/MF Microchip Integrated Circuit (Small Outline No-lead) In Stock
SST26VF064B-104I/MF is a 64 Mbit SPI NOR flash memory with 104 MHz clock, 100K write/erase endurance, 100-year data retention, and SPI/QPI quad-I/O interface in an 8-pin WSON package for embedded code and data storage.
- Manufacturer
- Microchip
- Package
- Small Outline No-lead
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- SST26VF064B-104I/MF Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 Mbit (8 MB) NOR flash with Quad-I/O SPI (QPI) interface up to 104 MHz for fast code execution
- 100,000 minimum write/erase cycle endurance supporting frequent firmware update applications
- 100-year minimum data retention ensuring long-term reliability in deployed embedded systems
- Compact 8-pin WSON package occupying under 6 mm² of board area
- Individual sector erase granularity allowing efficient in-application firmware update without full-chip erase
Applications
SST26VF064B-104I/MF serves as external code and data storage in microcontroller-based embedded systems where on-chip flash is insufficient for the firmware image or configuration data. Its 104 MHz Quad-I/O interface enables execute-in-place (XIP) operation on SoCs with a QSPI memory-mapped interface, allowing direct code fetch without loading into RAM. The 100K erase endurance and 100-year retention make it appropriate for industrial equipment and IoT gateways requiring infrequent field firmware updates over a multi-decade product lifetime.
Specifications
| Manufacturer Package Code | WSON-8 |
| Factory Lead Time | 7Weeks |
| YTEOL | 14 |
| Clock Frequency-Max (fCLK) | 104MHz |
| Data Retention Time-Min | 100 |
| Endurance | 100000 Write/Erase Cycles |
| JESD-30 Code | R-PDSO-N8 |
| JESD-609 Code | e3 |
| Memory Density | 67108864bit |
| Memory IC Type | FLASH |
| Memory Width | 1 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 67108864words |
| Number of Words Code | 64000000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 64MX1 |
| Output Characteristics | 3-STATE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Parallel/Serial | SERIAL |
| Programming Voltage | 3V |
| Qualification Status | Not Qualified |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000045A |
| Supply Current-Max | 0.025mA |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Type | NOR TYPE |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Small Outline No-lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Taiwan, Thailand |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for SST26VF064B-104I/MF:
Frequently Asked Questions
How does the 104 MHz Quad-I/O interface of SST26VF064B-104I/MF enable execute-in-place operation on a Cortex-M MCU?
SST26VF064B-104I/MF supports Quad-I/O (QPI) reads at up to 104 MHz, delivering 4 bits per clock for an effective read throughput of 52 MB/s. A Cortex-M MCU with a QSPI memory-mapped peripheral can fetch instructions directly from this flash at speeds matching a typical 80–100 MHz system bus, enabling XIP code execution from external flash without copying the firmware to internal SRAM. This frees 8 MB of SRAM for heap and stack.
What is the write/erase endurance of SST26VF064B-104I/MF and how many over-the-air firmware updates does that support?
SST26VF064B-104I/MF guarantees a minimum of 100,000 write/erase cycles per sector. If an IoT device receives 4 firmware updates per year, each updating 64 sectors (a 512 KB firmware image in 8 KB blocks), that is 256 sector erase events per year. At this rate, the 100,000-cycle endurance lasts over 390 years — far exceeding any realistic product lifetime, making endurance a non-limiting factor for typical OTA update scenarios.
For a compact IoT gateway PCB, how does the 8-pin WSON package of SST26VF064B-104I/MF compare to a SOIC-8 NOR flash in terms of board area?
The 8-pin WSON package of SST26VF064B-104I/MF measures approximately 6 mm × 5 mm including pads, while a standard SOIC-8 occupies roughly 9 mm × 6 mm. The WSON saves approximately 44% of board area, which is significant in designs where the memory sits adjacent to the MCU in a constrained module footprint. The WSON also has no gull-wing leads, reducing solder-joint height and improving vibration resistance in industrial environments.
How long will SST26VF064B-104I/MF retain data after the product is deployed, and does it meet industrial equipment longevity requirements?
SST26VF064B-104I/MF specifies a minimum data retention of 100 years at room temperature. Most industrial equipment standards such as IEC 61508 require data integrity over a 20–25 year design lifetime; the 100-year retention rating provides a 4-5× margin over this requirement. Combined with the 100,000-cycle erase endurance, the device meets the persistence requirements for configuration storage in smart meters, PLCs, and industrial gateways without additional data-integrity mitigation.
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