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Microchip Technology SST26VF064BA-104I/SO
- Part No.:
- SST26VF064BA-104I/SO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SST26VF064BA-104I/SO.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,676
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Product details
Overview
SST26VF064BA-104I/SO from Microchip Technology is a 64-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for high-speed, low-power embedded code storage and data logging. It operates at 104 MHz (2.7–3.6 V), supports uniform 4-Kbyte sectors and flexible block protection, and delivers 100,000 program/erase cycles with >100-year data retention. It is used in industrial controllers requiring fast boot code execution and secure firmware updates.
For engineers reviewing the SST26VF064BA-104I/SO datasheet, SST26VF064BA-104I/SO pinout, SST26VF064BA-104I/SO application, or SST26VF064BA-104I/SO equivalent, key selection criteria include quad-I/O throughput, hardware write-protection configuration, sector-level erase granularity, and industrial temperature support (-40°C to +85°C).
Technical Context
The SST26VF064BA-104I/SO implements a six-wire SQI interface with SIO[3:0] multiplexed I/Os, enabling 4-bit data transfers at up to 104 MHz in 2.7–3.6 V operation. Its SuperFlash® technology uses split-gate cells and thick-oxide tunneling for faster erase (18 ms typical sector erase) and lower energy per operation versus conventional NOR flash.
At power-up, SST26VF064BA defaults with IOC=1 - disabling WP# and HOLD# pins while enabling SIO2/SIO3 for native Quad I/O mode. It supports SPI Mode 0/3, x1/x2/x4 protocols, and includes OTP Security ID (64-bit factory unique + 2-Kbyte user-programmable), nonvolatile write-lock lock-down, and configurable burst lengths (8/16/32/64-byte wrap-around).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 MByte) organized as 126 × 64-Kbyte blocks, eight 8-Kbyte parameter blocks, and two 32-Kbyte overlay blocks |
| Max Clock Frequency | 104 MHz at 2.7–3.6 V - enables 416 MB/s theoretical quad-I/O read bandwidth |
| Erase Performance | 18 ms typical sector (4-Kbyte) erase time - reduces firmware update latency in field-deployed systems |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention - suitable for long-life industrial deployments |
| Supply Voltage Range | 2.3 V–3.6 V - supports single-supply operation across wide input rails without level-shifting |
| Operating Temperature | -40°C to +85°C (Industrial grade) - validated for use in motor drives, PLCs, and outdoor edge nodes |
| Active Read Current | 15 mA typical at 104 MHz - enables low-power boot loading in battery-backed applications |
Pinout & Package
Package: 8-lead SOIJ (5.28 mm width), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low during full command sequence including address/data transfer |
| SO/SIO1 | Serial Data Output / Quad I/O 1 | Default SPI output pin; functions as SIO1 in Quad I/O mode after IOC=1 configuration |
| WP#/SIO2 | Write Protect Input / Quad I/O 2 | Disabled at power-up (IOC=1); serves as SIO2 in SQI mode - no hardware write protection active by default |
| VSS | Ground | Reference return path for all digital and I/O circuits; requires low-impedance PCB connection |
| VDD | Power Supply | 2.3–3.6 V supply input; decoupling capacitor (0.1 µF) required within 5 mm of pin |
| HOLD#/SIO3 | Hold Input / Quad I/O 3 | Disabled at power-up (IOC=1); serves as SIO3 in SQI mode - not functional in SPI hold operations |
| SCK | Serial Clock | Input clock for all serial transactions; sampled on rising edge for inputs, drives outputs on falling edge |
| SI/SIO0 | Serial Data Input / Quad I/O 0 | Default SPI input pin; functions as SIO0 in Quad I/O mode - primary command/address/data input path |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface (SQI) | Four multiplexed I/O lines (SIO[3:0]) deliver 4× throughput vs. standard SPI at same clock frequency - eliminates need for wider bus or higher clock rates |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus configurable 8/32/64-Kbyte overlay blocks - enables precise firmware partitioning and OTA update staging |
| Security ID with OTP Lock | 64-bit factory-unique identifier + 2-Kbyte user-programmable space, lockable via LSID command - prevents cloning and supports device authentication |
| Nonvolatile Write-Lock Lock-Down | 136-bit nVWLDR register permanently disables write access to specific blocks once programmed - enforces immutable firmware or calibration data |
| Write Suspend Capability | Interrupt ongoing program/erase to service urgent reads - maintains real-time responsiveness in multitasked embedded systems |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing certified boot firmware and runtime logic in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Primary nonvolatile code storage device executing XIP-capable boot sequences with deterministic timing under IEC 61131-3 constraints. Use Value: 104 MHz SQI read speed ensures sub-100 ms cold boot; 100K-cycle endurance supports decades of firmware revisions without replacement. | Use Scenario: Securing boot loader and regulatory-critical calibration tables in Class II medical imaging equipment with traceability requirements. IC Role / Device Role / Timing Role: Trusted code origin anchor with factory-unique Security ID and permanent lock-down capability for calibration blocks. Use Value: OTP 64-bit ID enables device-level audit trail; nonvolatile write-lock prevents unauthorized modification of FDA-approved parameters. |
| Automotive Infotainment Head Unit | Smart Grid Meter Firmware |
Use Scenario: Hosting OS kernel, UI assets, and over-the-air (OTA) update staging partitions in AEC-Q100 Grade 3 qualified infotainment systems. IC Role / Device Role / Timing Role: High-reliability flash memory supporting dual-bank OTA with atomic sector swap and rollback capability. Use Value: Uniform 4-Kbyte sectors enable fine-grained update management; -40°C to +105°C option available for under-hood variants. | Use Scenario: Storing metrology firmware, tariff tables, and encrypted communication keys in ANSI C12.22-compliant smart electricity meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for cryptographic keys and firmware integrity hashes with hardware-assisted protection. Use Value: Hardware write protection (WP#) and software lock-down prevent physical or remote firmware corruption; >100-year retention meets 20+ year meter lifetime. |
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 native SQI); max 133 MHz clock but only x1/x2/x4 read modes; no OTP Security ID or nVWLDR | Lacks quad-I/O throughput and hardware security features; requires external authentication for secure boot | Choose when cost sensitivity outweighs SQI performance and security needs; verify SPI timing margins for 133 MHz operation |
| Cypress S25FL164K0XMFI010 | 64 Mbit, supports both SPI and QPI modes; 80 MHz max in QPI; no factory-unique ID or nonvolatile lock-down | Provides quad-I/O but lacks OTP-based device identity and permanent block locking - weaker root-of-trust foundation | Select for legacy QPI-compatible designs where Microchip SQI ecosystem integration is not required |
Compared with W25Q64JVSIQ and S25FL164K0XMFI010, the SST26VF064BA-104I/SO delivers higher effective bandwidth via native SQI protocol, integrated factory-unique identity for device attestation, and irreversible block protection - making it optimal for safety-critical and secure-boot applications where firmware integrity is non-negotiable.
Availability
SST26VF064BA-104I/SO is available at Aetrix Electronics and suitable for industrial control systems, medical diagnostics equipment, and automotive infotainment platforms requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant variants.
Supply support for SST26VF064BA-104I/SO 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 provider of microcontrollers, analog devices, Flash memory, and security solutions, serving industrial, automotive, and communications markets with vertically integrated silicon and development tools.
The SST26VF064BA-104I/SO belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for high-performance, low-pin-count embedded code storage where throughput, reliability, and security coexist in constrained PCB footprints.
FAQ
What is the default I/O configuration of SST26VF064BA-104I/SO at power-up?
The SST26VF064BA-104I/SO powers up with IOC=1 in its Configuration register, disabling WP# and HOLD# pins while enabling SIO2 and SIO3 for immediate Quad I/O operation. This distinguishes it from the SST26VF064B variant, which defaults to IOC=0 and SPI mode. No initialization command is needed to enter SQI mode - the device is ready for 4-bit commands upon power stabilization.
Does SST26VF064BA-104I/SO support both SPI and SQI protocols simultaneously?
No - the SST26VF064BA-104I/SO operates exclusively in one interface mode at a time. When IOC=1 (default), only SQI and SPI Quad I/O commands (e.g., 6BH, EBH) are valid; standard SPI commands like 03H or 0BH are disabled. To use traditional SPI, the IOC bit must be cleared to '0', re-enabling WP# and HOLD# and disabling SIO2/SIO3 - requiring a full reconfiguration sequence.
How does the nonvolatile write-lock lock-down (nVWLDR) function in SST26VF064BA-104I/SO?
The SST26VF064BA-104I/SO includes a 136-bit nVWLDR register that, once any bit is set to '1', permanently disables write access to the corresponding memory block - even after power cycles. Unlike volatile lock-down, this action is irreversible and prevents future program/erase operations to protected regions, making it ideal for storing immutable calibration data or cryptographic keys that must survive field updates.
What is the purpose of the Security ID feature in SST26VF064BA-104I/SO?
The SST26VF064BA-104I/SO integrates a 2-Kbyte Security ID space comprising a factory-programmed 64-bit unique identifier and a user-programmable area. The factory ID is unalterable and enables device-level traceability and anti-cloning; the user area can store keys or certificates. Both sections can be locked via the LSID command, ensuring persistent integrity - critical for secure boot chains and regulatory compliance in medical and industrial systems.
Can SST26VF064BA-104I/SO perform concurrent read and write operations?
Yes - the SST26VF064BA-104I/SO supports Write Suspend, allowing an active program or erase operation to be paused so another memory region can be read. This is implemented via dedicated suspend/resume commands and reflected in STATUS register bits WSP/WSE. It enables real-time systems to maintain responsiveness during firmware updates without halting critical monitoring tasks.
SST26VF064BA-104I/SO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- 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:
- 16-SOIC
SST26VF064BA-104I/SO FAQ
1.How can I place an order for SST26VF064BA-104I/SO through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF064BA-104I/SO 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/SO reliable?
The price and inventory of SST26VF064BA-104I/SO 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/SO is usually 5 days.
3.What payment methods are accepted for SST26VF064BA-104I/SO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF064BA-104I/SO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF064BA-104I/SO?
SST26VF064BA-104I/SO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF064BA-104I/SO 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/SO?
For technical support, including SST26VF064BA-104I/SO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF064BA-104I/SO requirements.
6.How does Aetrix verify that SST26VF064BA-104I/SO is sourced from the original manufacturer or authorized distributors?
All SST26VF064BA-104I/SO 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/SO meets industry standards.
7.What is the process for return or replacement of SST26VF064BA-104I/SO?
All SST26VF064BA-104I/SO units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF064BA-104I/SO, 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/SO part is unused and in its original packaging.
Return procedure for SST26VF064BA-104I/SO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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