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Microchip Technology SST26VF064BA-104I/MF
- Part No.:
- SST26VF064BA-104I/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF064BA-104I/MF.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,079
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Product details
Overview
SST26VF064BA-104I/MF from Microchip Technology is a 64-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 (2.7V–3.6V), 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 and firmware update buffers.
For engineers reviewing the SST26VF064BA-104I/MF datasheet, SST26VF064BA-104I/MF pinout, SST26VF064BA-104I/MF application, or SST26VF064BA-104I/MF equivalent, key selection criteria include quad-I/O burst performance, hardware write protection flexibility via WP#/IOC configuration, sector-level erase granularity, OTP Security ID capability, and industrial temperature support (-40°C to +85°C).
Technical Context
The SST26VF064BA-104I/MF implements a six-wire, 4-bit multiplexed serial interface (SIO[3:0]) enabling true quad-data-rate transfers in SQI mode, while maintaining full backward compatibility with standard SPI Mode 0/3 command sets. Its SuperFlash® split-gate CMOS technology enables faster erase (18 ms typical sector erase) and lower active current (15 mA @ 104 MHz) versus conventional NOR Flash.
At power-up, SST26VF064BA defaults with IOC=1 - disabling WP# and HOLD# pins and enabling SIO2/SIO3 for immediate SQI operation - distinguishing it from the SST26VF064B variant. The device integrates a 144-bit Block Protection Register, nonvolatile Write Lock Lock-Down register (136-bit), and 2-Kbyte OTP Security ID space with factory-programmed 64-bit unique identifier.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MByte), organized as 126 × 64-Kbyte blocks + overlay structures - supports scalable firmware partitioning and OTA update staging. |
| Max Clock Frequency | 104 MHz (2.7V–3.6V); 80 MHz (2.3V–3.6V) - enables 416 MB/s effective read throughput in SQI x4 mode, reducing boot latency. |
| Erase Performance | Sector/Block erase: 18 ms typical (25 ms max); Chip erase: 35 ms typical (50 ms max) - accelerates field firmware recovery and manufacturing reprogramming. |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - qualified for long-lifecycle industrial control and automotive infotainment systems. |
| Supply Voltage Range | 2.3V–3.6V single supply - compatible with 2.5V and 3.3V system rails without level-shifting, simplifying power design. |
| Operating Temperature | -40°C to +85°C (Industrial grade) - validated for deployment in motor drives, PLCs, and edge IoT gateways. |
| Security Features | One-Time-Programmable 2-Kbyte Security ID with 64-bit factory-unique ID + user-programmable segment - enables secure device authentication and anti-cloning. |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3. Pin assignments are identical across SOIJ, SOIC, TBGA, and WDFN variants per Microchip DS20005119K.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low during full command sequence - enables multi-device daisy-chaining on shared SPI bus. |
| SO/SIO1 | Serial Data Output / Quad I/O 1 | Default SPI output pin; becomes bidirectional SIO1 in SQI mode - eliminates need for separate SI/SO routing in compact layouts. |
| WP#/SIO2 | Write Protect Input / Quad I/O 2 | Hardware write-protection control in SPI mode; repurposed as SIO2 in SQI mode - configurable via IOC bit for dual-mode system flexibility. |
| VSS | Ground | Reference return path for all I/O and core logic - requires low-inductance connection to minimize noise during high-speed bursts. |
| VDD | Power Supply | 2.3V–3.6V core and I/O supply - decoupling capacitor (≥1 µF ceramic) required within 5 mm of VDD/VSS pair. |
| HOLD#/SIO3 | Hold Input / Quad I/O 3 | Pauses ongoing SPI transfer without resetting state; disabled by default in SST26VF064BA (IOC=1) and enabled in SST26VF064B - reduces software overhead in interrupt-driven hosts. |
| SCK | Serial Clock | Edge-triggered timing reference (rising edge latches input, falling edge outputs data) - supports Mode 0 (SCK idle low) and Mode 3 (SCK idle high). |
| SI/SIO0 | Serial Data Input / Quad I/O 0 | Default SPI input pin; becomes bidirectional SIO0 in SQI mode - allows same PCB footprint for SPI-only and SQI-optimized designs. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Protocol Support | Enables 4× data bandwidth vs. standard SPI at same clock frequency - cuts firmware load time by up to 75% in boot-critical applications. |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors + 8/32/64-Kbyte overlay blocks - permits granular firmware patching without erasing entire application image. |
| Write Suspend Capability | Allows interruption of active Program/Erase to service urgent reads - essential for real-time systems requiring deterministic response latency. |
| OTP Security ID | Factory-programmed 64-bit unique ID + 2-Kbyte user-programmable area - provides cryptographic root-of-trust for secure boot and license enforcement. |
| Hardware Write Protection | WP# pin + IOC-configurable behavior - supports both legacy SPI systems (WP# active) and modern SQI designs (WP# repurposed as SIO2). |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing and executing boot code and real-time control firmware in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with fast random-access read and reliable in-field updates. Use Value: 104 MHz SQI read speed reduces boot time by >40% vs. legacy SPI Flash; -40°C to +85°C rating ensures operation during thermal cycling in unconditioned cabinets. |
Use Scenario: Holding boot loader, OS kernel, and UI assets in automotive head units requiring AEC-Q100 Grade 2 compliance. IC Role / Device Role / Timing Role: Secure, high-reliability firmware repository supporting authenticated boot and encrypted OTA updates. Use Value: OTP Security ID enables hardware-rooted device identity; 100,000-cycle endurance accommodates frequent firmware revisions over 15-year vehicle lifespan. |
| Medical Imaging System Configuration | Edge AI Gateway Firmware Buffer |
Use Scenario: Storing calibration tables, sensor profiles, and regulatory-certified configuration data in portable ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Tamper-resistant parameter storage with read-lock capability for HIPAA/GDPR-compliant data handling. Use Value: Read-lock feature on 8-Kbyte parameter blocks prevents unauthorized extraction of sensitive calibration data; >100-year retention meets medical device archival requirements. |
Use Scenario: Caching firmware images and ML model weights for rapid deployment in cellular-connected industrial gateways with intermittent connectivity. IC Role / Device Role / Timing Role: High-throughput, low-latency local storage for just-in-time firmware staging and model swapping. Use Value: Continuous linear burst mode delivers sustained 416 MB/s read bandwidth - accelerates model loading by 3.2× compared to 50 MHz SPI Flash. |
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, 2.7V–3.6V only | Lacks quad-I/O acceleration and hardware security features - suitable for cost-sensitive, non-secure boot applications | Select when SQI bandwidth and Security ID are unnecessary and legacy SPI compatibility is mandatory. |
| Cypress S25FL164K0XMFI001 | 64 Mbit HyperFlash-compatible, 166 MHz DDR interface, 1.8V/3.0V dual supply, no integrated Security ID | Requires DDR-capable controller; higher peak bandwidth but larger footprint and stricter signal integrity requirements | Select for systems with HyperBus controllers needing >500 MB/s sequential reads, where PCB layout complexity is acceptable. |
Compared with SST26VF064BA-104I/MF, W25Q64JVSSIQ offers higher SPI clock rate but no SQI acceleration or security features, while S25FL164K0XMFI001 delivers superior bandwidth via DDR signaling but demands more complex controller support and lacks on-chip identity - making SST26VF064BA-104I/MF optimal for balanced performance, security, and design simplicity in industrial and automotive edge nodes.
Availability
SST26VF064BA-104I/MF is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SST26VF064BA-104I/MF 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 devices, and memory solutions, with a focus on reliability, low-power design, and embedded security.
The SST26VF064BA-104I/MF belongs to Microchip's Serial Quad I/O™ Flash family, engineered to replace parallel NOR Flash in space-constrained, high-performance embedded systems while delivering enhanced endurance, security, and energy efficiency.
FAQ
What is the default I/O configuration of SST26VF064BA-104I/MF at power-up?
The SST26VF064BA-104I/MF powers up with the I/O Configuration (IOC) bit set to '1' in its Configuration register, disabling the WP# and HOLD# pins and enabling SIO2 and SIO3 for immediate Quad I/O operation. This distinguishes it from the SST26VF064B variant, which defaults to IOC=0. The IOC setting can be modified via the Write Configuration Register command, but the factory default ensures plug-and-play SQI functionality without initialization overhead.
Does SST26VF064BA-104I/MF support both SPI and SQI protocols simultaneously?
No - SST26VF064BA-104I/MF operates in either SPI mode (x1/x2/x4) or SQI mode, selected via the IOC bit and command set. When IOC=0, it uses dedicated SI/SO pins and supports SPI commands like 03H (Read) and 0BH (Fast Read). When IOC=1, SIO[3:0] become active for SQI commands such as 6BH (SQOR) and ECH (RBSPI), and WP#/HOLD# are disabled. Mode switching requires explicit command execution and cannot occur mid-transaction.
How does the Security ID feature work in SST26VF064BA-104I/MF?
The SST26VF064BA-104I/MF includes a 2-Kbyte Security ID (Sec ID) space: the first 64 bits are factory-programmed with a unique, unchangeable identifier, while the remaining 2048 bytes are user-programmable. Programming is done via the PSID command; once locked using LSID, no further writes are possible. Neither segment supports erasure. This provides a hardware-enforced root of trust for secure boot, licensing, and anti-counterfeiting - critical for certified industrial and automotive deployments.
What is the significance of the "-104I/MF" suffix in SST26VF064BA-104I/MF?
The "-104I/MF" suffix denotes three key specifications: "104" indicates maximum clock frequency of 104 MHz (at 2.7V–3.6V), "I" specifies Industrial temperature range (-40°C to +85°C), and "MF" identifies the 8-contact WDFN package (6 mm × 5 mm) with matte tin finish. This exact ordering code ensures traceability to the validated electrical, thermal, and mechanical performance envelope defined in Microchip's DS20005119K datasheet.
Can SST26VF064BA-104I/MF perform erase operations while another memory region is being read?
Yes - SST26VF064BA-104I/MF supports Write Suspend, allowing an active Program or Erase operation to be paused via the SUSPEND command so that reads (or other operations) can access a different block or sector. The STATUS register bits WSE (Write Suspend Erase) and WSP (Write Suspend Program) indicate suspension state. This capability is essential for real-time systems where deterministic latency for critical reads must be guaranteed even during background firmware updates.
SST26VF064BA-104I/MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WDFN (5x6)
SST26VF064BA-104I/MF FAQ
1.How can I place an order for SST26VF064BA-104I/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF064BA-104I/MF 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 SST26VF064BA-104I/MF reliable?
The price and inventory of SST26VF064BA-104I/MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF064BA-104I/MF is usually 5 days.
3.What payment methods are accepted for SST26VF064BA-104I/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF064BA-104I/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF064BA-104I/MF?
SST26VF064BA-104I/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF064BA-104I/MF 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 SST26VF064BA-104I/MF?
For technical support, including SST26VF064BA-104I/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF064BA-104I/MF requirements.
6.How does Aetrix verify that SST26VF064BA-104I/MF is sourced from the original manufacturer or authorized distributors?
All SST26VF064BA-104I/MF 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 SST26VF064BA-104I/MF meets industry standards.
7.What is the process for return or replacement of SST26VF064BA-104I/MF?
All SST26VF064BA-104I/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF064BA-104I/MF, 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 SST26VF064BA-104I/MF part is unused and in its original packaging.
Return procedure for SST26VF064BA-104I/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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