Microchip Technology SST26VF064BAT-104I/SO
- Part No.:
- SST26VF064BAT-104I/SO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
SST26VF064BAT-104I/SO.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
SST26VF064BAT-104I/SO from Microchip Technology is a 64-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for high-speed, low-pin-count embedded storage in space-constrained applications. It operates at 104 MHz (2.7V–3.6V), supports x1/x2/x4 SPI and full SQI protocols, features uniform 4-Kbyte sectors and 100,000-program/erase cycles, and is qualified for industrial temperature range (–40°C to +85°C) in 8-lead SOIJ package.
For engineers reviewing the SST26VF064BAT-104I/SO datasheet, SST26VF064BAT-104I/SO pinout, SST26VF064BAT-104I/SO application, or SST26VF064BAT-104I/SO equivalent, key selection considerations include quad-I/O burst performance, flexible hardware/software write protection, OTP Security ID, and compatibility with legacy SPI host controllers while enabling bandwidth scaling via SQI mode.
Technical Context
This device implements Microchip's proprietary SuperFlash® technology with split-gate cells and thick-oxide tunneling, delivering faster erase (18 ms sector typical) and lower active current (15 mA @104 MHz) than conventional NOR Flash. Its dual-mode interface supports backward-compatible SPI (Mode 0/3) and high-throughput SQI with four multiplexed I/Os (SIO[3:0]), enabling up to 4× data rate at identical clock frequency.
The SST26VF064BAT-104I/SO integrates configurable protection logic including volatile Write Protection Lock-Down (WPLD), nonvolatile Write Lock Lock-Down (nVWLDR), and per-block read/write lock bits in a 144-bit Block Protection Register. Its I/O Configuration (IOC) bit determines power-up default behavior: SST26VF064BA variants (like this SOIJ part) initialize with IOC=1, disabling WP#/HOLD# and enabling SIO2/SIO3 for immediate quad operation.
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 2.7V–3.6V supply; enables 416 MB/s effective throughput in x4 SQI mode |
| Erase Performance | Sector/Block Erase: 18 ms typical (25 ms max); Chip Erase: 35 ms typical (50 ms max) |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 85°C |
| Supply Voltage Range | 2.3V–3.6V single supply; supports low-voltage operation without auxiliary rails |
| Operating Temperature | Industrial grade: –40°C to +85°C - validated for extended thermal cycling in industrial control and networking equipment |
| Security Features | 2-Kbyte OTP Security ID with factory-programmed 64-bit unique identifier and user-programmable segment; lockable via LSID command |
Pinout & Package
Package: 8-lead SOIJ (5.28 mm body width), RoHS-compliant, surface-mountable with gull-wing leads.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 CE# | Chip Enable | Active-low chip select; must remain low throughout command/data sequence; controls device activation timing |
| 2 SO/SIO1 | Serial Data Output / Quad I/O 1 | Default SPI output pin; becomes bidirectional SIO1 in SQI mode after IOC=1 configuration |
| 3 WP#/SIO2 | Write Protect Input / Quad I/O 2 | In SPI mode: hardware write protect for Block Protection register; in SQI mode: bidirectional data line SIO2 |
| 4 VSS | Ground | Reference return path for all digital and analog circuitry; requires low-impedance PCB connection |
| 5 VDD | Power Supply | 2.3V–3.6V main supply; decoupling capacitor (0.1 µF) required near pin for noise suppression |
| 6 HOLD#/SIO3 | Hold Input / Quad I/O 3 | In SPI mode: pauses ongoing serial transfer without resetting state; in SQI mode: bidirectional data line SIO3 |
| 7 SCK | Serial Clock | Master-generated clock; rising edge latches input, falling edge shifts out data; supports Mode 0 (SCK idle low) and Mode 3 (SCK idle high) |
| 8 SI/SIO0 | Serial Data Input / Quad I/O 0 | Default SPI input pin; becomes bidirectional SIO0 in SQI mode after IOC=1 configuration |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4-bit parallel data transfer on shared SIO[3:0] pins, quadrupling SPI bandwidth without increasing pin count or PCB routing complexity |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors plus configurable 8/32/64-Kbyte overlay blocks allow precise firmware partitioning and OTA update management |
| Hardware + Software Protection | WP# pin, volatile WPLD, and nonvolatile nVWLDR provide layered defense against accidental or malicious writes to critical boot code or configuration data |
| Write Suspend Capability | Allows interruption of long erase/program operations to service time-critical reads from other memory regions - essential for real-time systems |
| OTP Security ID | Factory-programmed 64-bit unique ID + 2-Kbyte user area supports secure boot authentication, device binding, and anti-cloning measures |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast random-access read and deterministic sector erase for field-upgradable firmware modules. Use Value: 104 MHz SPI/SQI interface ensures rapid boot times; industrial temperature rating (–40°C to +85°C) guarantees reliability across operating conditions; 100K-cycle endurance supports frequent firmware updates over 10+ year product life. | Use Scenario: Holding boot loader and safety-critical calibration data in advanced driver-assistance systems requiring AEC-Q100 Grade 2 compliance. IC Role / Device Role / Timing Role: Secure, high-reliability storage for ASIL-B relevant code segments with hardware write protection and OTP identity binding. Use Value: Factory-programmed 64-bit Security ID enables cryptographic root-of-trust; write lock-down registers prevent runtime corruption of calibration tables; AEC-Q100 qualification confirms robustness under automotive thermal and vibration stress. |
| Networking Equipment Configuration | Medical Imaging System Code Storage |
Use Scenario: Retaining device-specific MAC addresses, network settings, and feature licenses in enterprise switches and routers subject to frequent reconfiguration. IC Role / Device Role / Timing Role: Parameter block storage with independent read/write lock capability for sensitive configuration data. Use Value: Eight 8-Kbyte parameter blocks support granular protection; read-lock function returns 0x00 on access to shielded data post-boot; 15 µA standby current minimizes power draw during idle periods. | Use Scenario: Hosting diagnostic firmware and image processing algorithms in portable ultrasound and X-ray devices requiring regulatory-grade data integrity. IC Role / Device Role / Timing Role: High-reliability code execution memory with >100-year data retention and verified 100,000-cycle endurance for lifetime calibration updates. Use Value: SuperFlash® technology ensures stable data retention across medical device shelf life; RoHS compliance meets global regulatory requirements; fast 18 ms sector erase accelerates field-service firmware patches. |
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 W25Q64JVSIM | 64-Mbit SPI-only (no SQI), 133 MHz max, 8-lead SOIC package, no OTP Security ID | Lacks quad I/O bandwidth scaling and hardware-based device identity; suitable only where SPI bandwidth suffices and security ID is not required | Select when cost sensitivity outweighs need for SQI speed or cryptographic binding; verify absence of IOC/WP#/HOLD# pin conflicts in existing layout |
| Cypress S25FL164K0XMFI010 | 64-Mbit HyperBus interface (not SPI/SQI compatible), 166 MHz DDR, 16-lead SOIC, no Security ID | Requires HyperBus controller; incompatible pinout and command set; higher bandwidth but no drop-in replacement path | Choose only for new HyperBus-based designs; not viable for SPI/SQI migration due to fundamental interface mismatch and lack of IOC/SIO pin mapping |
Compared with W25Q64JVSIM and S25FL164K0XMFI010, the SST26VF064BAT-104I/SO uniquely delivers SPI/SQI dual-mode flexibility, integrated OTP Security ID, and industrial-temperature SOIJ packaging - enabling both legacy compatibility and future bandwidth headroom without redesigning memory subsystems.
Availability
SST26VF064BAT-104I/SO is available at Aetrix Electronics and suitable for industrial control, automotive ADAS, medical imaging, and networking equipment requiring stable component supply, long-term lifecycle support, and RoHS-compliant sourcing.
Supply support for SST26VF064BAT-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 Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash memory solutions, serving industrial, automotive, communications, and consumer markets with vertically integrated silicon and software platforms.
The SST26VF064BAT-104I/SO belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for embedded systems needing high-speed, low-pin-count nonvolatile storage with enhanced security, reliability, and seamless SPI-to-SQI migration paths.
FAQ
What is the default I/O configuration at power-up for SST26VF064BAT-104I/SO?
The SST26VF064BAT-104I/SO is an SST26VF064BA variant, which defaults to IOC=1 at power-up. This disables WP# and HOLD# pins and enables SIO2/SIO3 for immediate Quad I/O operation. To use SPI mode with hardware write protection, the IOC bit must be cleared via the Write Configuration Register command before issuing SPI commands like WP#-dependent protection sequences.
Does SST26VF064BAT-104I/SO support both SPI Mode 0 and Mode 3?
Yes, SST26VF064BAT-104I/SO supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). The SCK idle state differs - low in Mode 0, high in Mode 3 - but both sample SIO[3:0] on the rising edge and drive outputs on the falling edge. Host controller must match the selected mode during initialization; mismatch causes communication failure.
How does the Security ID feature work in SST26VF064BAT-104I/SO?
The SST26VF064BAT-104I/SO includes a 2-Kbyte Security ID space: 64 bits factory-programmed with a unique identifier (read-only), plus a user-programmable area. The PSID command writes to the user area; LSID locks the entire space permanently. Once locked, no further writes are possible - ensuring tamper-resistant device identity for secure boot or license enforcement in the SST26VF064BAT-104I/SO.
Can SST26VF064BAT-104I/SO perform write suspend during active erase or program operations?
Yes, SST26VF064BAT-104I/SO supports write suspend: issuing the SUSPEND command halts an ongoing erase or program operation, allowing immediate read access to other memory regions. The STATUS register reports WSE=1 or WSP=1 to confirm suspension. Resume is triggered by RESUME command. This capability is critical for real-time systems using SST26VF064BAT-104I/SO where latency-sensitive reads cannot wait for long flash operations.
What package and lead finish does SST26VF064BAT-104I/SO use?
SST26VF064BAT-104I/SO uses an 8-lead SOIJ (Small Outline Integrated Circuit, J-bend) package with 5.28 mm body width and matte tin lead finish. It is RoHS-compliant, rated for industrial temperature (–40°C to +85°C), and designed for reflow soldering per JEDEC J-STD-020. Pin 1 is marked with a notch or dot; orientation matches standard SOIC footprints with adjusted lead pitch.
SST26VF064BAT-104I/SO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- 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:
- 16-SOIC
SST26VF064BAT-104I/SO FAQ
1.How can I place an order for SST26VF064BAT-104I/SO through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF064BAT-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 SST26VF064BAT-104I/SO reliable?
The price and inventory of SST26VF064BAT-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 SST26VF064BAT-104I/SO is usually 5 days.
3.What payment methods are accepted for SST26VF064BAT-104I/SO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF064BAT-104I/SO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF064BAT-104I/SO?
SST26VF064BAT-104I/SO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF064BAT-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 SST26VF064BAT-104I/SO?
For technical support, including SST26VF064BAT-104I/SO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF064BAT-104I/SO requirements.
6.How does Aetrix verify that SST26VF064BAT-104I/SO is sourced from the original manufacturer or authorized distributors?
All SST26VF064BAT-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 SST26VF064BAT-104I/SO meets industry standards.
7.What is the process for return or replacement of SST26VF064BAT-104I/SO?
All SST26VF064BAT-104I/SO units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF064BAT-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 SST26VF064BAT-104I/SO part is unused and in its original packaging.
Return procedure for SST26VF064BAT-104I/SO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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