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Microchip Technology SST26VF064BEUIT-104I/MF
- Part No.:
- SST26VF064BEUIT-104I/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF064BEUIT-104I/MF.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:405
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Product details
Overview
SST26VF064BEUIT-104I/MF from Microchip Technology is a 64 Mbit Serial Quad I/O™ (SQI™) flash memory with factory-programmed EUI-48™ and EUI-64™ identifiers, supporting 104 MHz operation at 2.7–3.6 V, 4 KByte uniform sectors, and OTP 2 KByte Security ID. It serves as nonvolatile code/data storage in microcontroller boot systems requiring secure, high-speed serial interface.
For engineers reviewing the SST26VF064BEUIT-104I/MF datasheet, SST26VF064BEUIT-104I/MF pinout, SST26VF064BEUIT-104I/MF application, or SST26VF064BEUIT-104I/MF equivalent, key selection criteria include SQI vs. SPI mode configuration, hardware write-protection behavior via WP#/IOC/WPEN, burst-read flexibility, and permanent lock-down capability for parameter blocks.
Technical Context
The SST26VF064BEUIT-104I/MF implements a six-wire, 4-bit multiplexed I/O interface (SIO[3:0]) compatible with both traditional SPI (x1/x2 modes) and high-speed SQI protocol, enabling up to 4× throughput at same clock frequency. Its SuperFlash® split-gate cell architecture delivers 100,000 program/erase cycles and >100-year data retention.
It features dual protection layers: volatile Block-Protection Register (BPR) with lock-down (LBPR), and non-volatile Write-Lock Lock-Down Register (nVWLDR) with one-time programmable bits per block. The device defaults to SPI mode at power-up with WP# and HOLD# enabled, and IOC=0 - requiring explicit EQIO command and IOC bit set to enable SQI mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MByte), organized as 126 × 64 KByte + 2 × 32 KByte + 8 × 8 KByte overlay blocks + uniform 4 KByte sectors |
| Interface Protocol | Supports SPI Mode 0/3 (x1/x2) and SQI (x4); IOC bit controls WP#/HOLD# vs. SIO2/SIO3 pin mapping |
| Max Clock Frequency | 104 MHz @ 2.7–3.6 V (SPI/SQI); 80 MHz @ 2.3–3.6 V - determines maximum sustained read bandwidth |
| Erase Performance | Sector/Block erase: 18 ms typ (25 ms max); Chip erase: 35 ms typ (50 ms max) - enables fast firmware updates |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - suitable for industrial field-upgrade applications |
| Security Features | Factory EUI-48/EUI-64 in SFDP table; OTP 2 KByte Security ID with LSID lockout; nVWLDR for permanent block write-lock |
| Supply Voltage | 2.3–3.6 V single supply - supports wide-input LDO or buck converter rails in embedded systems |
| Operating Temp | Industrial grade: –40°C to +85°C - qualified for extended-temperature industrial control and automotive Grade 2/3 environments |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, moisture sensitivity level 3.
| 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 | Default SI in SPI mode; becomes bidirectional SIO0 in SQI mode after IOC=1 and EQIO command |
| SIO1/SO | Serial Data Output | Default SO in SPI mode; becomes bidirectional SIO1 in SQI mode; outputs data on SCK falling edge |
| WP#/SIO2 | Write Protect / I/O2 | Hardware write-protect for BPR/Config register when IOC=0 & WPEN=1; functions as SIO2 in SQI mode when IOC=1 |
| HOLD#/SIO3 | Hold / I/O3 | Pauses SPI transactions without reset; disabled in SQI mode; functions as SIO3 when IOC=1 |
| VDD | Power Supply | 2.3–3.6 V main supply; decoupling capacitor required near pin for stable high-frequency operation |
| VSS | Ground | Reference return path; must be low-impedance connection to minimize noise coupling into SCK/SIO lines |
| SCK | Serial Clock | Input timing reference; commands/addresses latched on rising edge; data shifted out on falling edge |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4-bit multiplexed data transfers (SIO[3:0]), quadrupling effective bandwidth over standard SPI at same clock rate |
| Flexible Erase Architecture | Uniform 4 KByte sectors plus configurable 8/32/64 KByte overlay blocks - supports partial firmware updates without full chip erase |
| Write-Suspend Capability | Allows suspension of active Program or Erase to service urgent reads - critical for real-time interrupt-driven boot loaders |
| Two-Tier Protection Scheme | Volatile BPR + non-volatile nVWLDR provides both field-reconfigurable and permanent block lock-down for security-critical parameters |
| Factory Unique Identifiers | EUI-48/EUI-64 stored in SFDP table - enables secure device authentication and traceability without custom programming step |
| Low-Power Operation | 15 µA standby current and 15 mA active read current @ 104 MHz - reduces system-level power budget in always-on edge nodes |
Applications
| Secure Boot Loader Storage | Firmware Over-the-Air (FOTA) Update Partition |
|---|---|
Use Scenario: Storing signed bootloader image and public key certificate in top 8 KByte parameter blocks with read-lock enabled. IC Role / Device Role / Timing Role: Nonvolatile, tamper-resistant code storage with factory EUI-48 used for cryptographic binding to hardware identity. Use Value: Prevents unauthorized firmware execution via read-lock and OTP Security ID; EUI-48 ensures unique device attestation during secure boot handshake. | Use Scenario: Holding staged firmware images in 64 KByte overlay blocks, erased and reprogrammed atomically during wireless update. IC Role / Device Role / Timing Role: High-reliability, sector-erasable storage with suspend/resume support to avoid corruption during power loss. Use Value: 18 ms sector erase and write-suspend allow safe interruption of update process; >100K endurance supports frequent field upgrades. |
| Industrial HMI Configuration Memory | Automotive Infotainment Parameter Store |
Use Scenario: Saving user preferences, calibration data, and display settings in bottom 8 KByte parameter blocks with permanent nVWLDR lock-down. IC Role / Device Role / Timing Role: Field-programmable, lockable nonvolatile memory for persistent settings requiring AEC-Q100 Grade 2 qualification. Use Value: nVWLDR prevents accidental or malicious overwrite of safety-critical configuration; -40°C to +85°C rating ensures reliability in factory-floor HMIs. | Use Scenario: Storing audio codec profiles, Bluetooth MAC addresses, and UI theme assets in 32 KByte overlay blocks with BPR-based software protection. IC Role / Device Role / Timing Role: Automotive-grade serial flash providing secure, high-bandwidth access for infotainment subsystem initialization. Use Value: AEC-Q100 Grade 2/3 qualification and 104 MHz SQI interface meet latency and reliability requirements for head-unit boot time optimization. |
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 W25Q64JVSIQ | 64 Mbit SPI-only (no SQI), 133 MHz max, no factory EUI-48/EUI-64, no nVWLDR | Lacks hardware-assisted secure identity and permanent lock-down; requires external UID management | Choose when SQI bandwidth and factory-unique ID are unnecessary and cost is primary constraint |
| Cypress S25FL164K0XMFI011 | 64 Mbit, supports Octal DTR mode (higher bandwidth), no EUI-48/EUI-64, no OTP Security ID | Higher peak throughput but lacks integrated secure identifier and two-tier protection scheme | Prefer when system demands >104 MHz read rates and external security IC handles UID/authentication |
Compared with W25Q64JVSIQ and S25FL164K0XMFI011, SST26VF064BEUIT-104I/MF uniquely integrates factory-programmed EUI-48/EUI-64, OTP Security ID, and non-volatile write-lock lock-down - delivering hardware-rooted device identity and immutable parameter protection without external components.
Availability
SST26VF064BEUIT-104I/MF is available at Aetrix Electronics and suitable for industrial HMI, automotive infotainment, secure boot loader, and FOTA update applications requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualification.
Supply support for SST26VF064BEUIT-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 leading provider of microcontrollers, analog devices, and memory solutions, with core expertise in embedded control and secure connectivity.
The SST26VF064BEUIT-104I/MF belongs to Microchip's Serial Quad I/O™ flash family, designed specifically for high-reliability, secure, and space-constrained embedded systems requiring fast, flexible, and authenticated nonvolatile storage.
FAQ
What interface modes does SST26VF064BEUIT-104I/MF support, and how is SQI mode enabled?
SST26VF064BEUIT-104I/MF supports SPI Mode 0/3 (x1/x2) and SQI (x4) protocols. SQI mode is enabled by first setting the IOC bit (Bit 1 of Configuration Register) to '1', then issuing the Enable Quad I/O (EQIO, 38H) command. Default power-up state is SPI mode with IOC=0, WP#=enabled, and HOLD#=enabled.
Does SST26VF064BEUIT-104I/MF include factory-programmed unique identifiers, and where are they stored?
Yes, SST26VF064BEUIT-104I/MF is factory-programmed with globally unique EUI-48™ and EUI-64™ identifiers stored in the Serial Flash Discoverable Parameters (SFDP) table. These are read-only and accessible via the SFDP Read (5AH) instruction - enabling secure device identification without custom programming.
How does hardware write protection work on SST26VF064BEUIT-104I/MF, and what pins are involved?
Hardware write protection on SST26VF064BEUIT-104I/MF uses the WP# pin in conjunction with the WPEN bit (Configuration Register Bit 7) and IOC bit. When IOC=0 and WPEN=1, pulling WP# low disables writes to the Block-Protection and Configuration registers. WP# has no effect on memory array writes or in SQI mode.
What is the purpose of the non-volatile Write-Lock Lock-Down Register (nVWLDR) in SST26VF064BEUIT-104I/MF?
The nVWLDR in SST26VF064BEUIT-104I/MF provides permanent, one-time programmable lock-down of individual memory block write-protection status. Once a bit is set to '1', the corresponding block's write-lock bit in the Block-Protection Register becomes immutable - ensuring irreversible protection of critical firmware or calibration data.
Can SST26VF064BEUIT-104I/MF suspend an ongoing erase or program operation, and how is it resumed?
Yes, SST26VF064BEUIT-104I/MF supports write-suspend: the WRSU (B0H) command pauses active Program or Erase operations, allowing immediate access to other memory regions. Resume is triggered by WRRE (30H). Status bits WSP (Bit 3) and WSE (Bit 2) in the Status Register indicate suspension state.
What package options and temperature grades are offered for SST26VF064BEUIT-104I/MF?
SST26VF064BEUIT-104I/MF is packaged in an 8-contact WDFN (6 mm × 5 mm) and qualified for Industrial temperature range (–40°C to +85°C). It also meets AEC-Q100 Grade 2 and Grade 3 standards, making it suitable for under-hood and cabin automotive applications.
SST26VF064BEUIT-104I/MF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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)
SST26VF064BEUIT-104I/MF FAQ
1.How can I place an order for SST26VF064BEUIT-104I/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF064BEUIT-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 SST26VF064BEUIT-104I/MF reliable?
The price and inventory of SST26VF064BEUIT-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 SST26VF064BEUIT-104I/MF is usually 5 days.
3.What payment methods are accepted for SST26VF064BEUIT-104I/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF064BEUIT-104I/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF064BEUIT-104I/MF?
SST26VF064BEUIT-104I/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF064BEUIT-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 SST26VF064BEUIT-104I/MF?
For technical support, including SST26VF064BEUIT-104I/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF064BEUIT-104I/MF requirements.
6.How does Aetrix verify that SST26VF064BEUIT-104I/MF is sourced from the original manufacturer or authorized distributors?
All SST26VF064BEUIT-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 SST26VF064BEUIT-104I/MF meets industry standards.
7.What is the process for return or replacement of SST26VF064BEUIT-104I/MF?
All SST26VF064BEUIT-104I/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF064BEUIT-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 SST26VF064BEUIT-104I/MF part is unused and in its original packaging.
Return procedure for SST26VF064BEUIT-104I/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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