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Microchip Technology SST26VF020AT-80E/MF
- Part No.:
- SST26VF020AT-80E/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF020AT-80E/MF.pdf
- Description:
- IC FLASH 2MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,873
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Product details
Overview
SST26VF020AT-80E/MF from Microchip Technology is a 2-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for high-speed, low-pin-count embedded storage in space-constrained systems. It supports dual-voltage operation (2.3V–3.6V), delivers up to 80 MHz read speed in extended temperature range (–40°C to +125°C), and features uniform 4-Kbyte sectors with 100,000 write/erase endurance - deployed in automotive instrument clusters, industrial PLC firmware storage, and IoT edge node boot code retention.
For engineers reviewing the SST26VF020AT-80E/MF datasheet, SST26VF020AT-80E/MF pinout, SST26VF020AT-80E/MF application, or SST26VF020AT-80E/MF equivalent, key selection considerations include its AEC-Q100 qualification, SQI/x4 SPI protocol flexibility, hardware write protection via WP# pin, OTP Security ID capability, and WDFN-8 (6 mm × 5 mm) package compatibility with high-density PCB layouts.
Technical Context
The SST26VF020AT-80E/MF implements a six-wire SQI interface (SCK, CE#, RESET#/HOLD#/SIO3, WP#/SIO2, SO/SIO1, SI/SIO0, VDD, VSS) supporting Mode 0/Mode 3 clocking and configurable x1/x2/x4 serial protocols. Its SuperFlash® split-gate cell architecture enables 20 ms typical sector erase and 256-byte page programming without external high-voltage supply.
It integrates dual protection layers: software-controlled Block Protection bits (BP0/BP1) with volatile lock-down (LDPS command), and hardware-based WP# pin functionality enabled only in SPI single/dual-bit modes when IOC = 0 and WPEN = 1. The device ships with factory-programmed 128-bit unique ID and user-programmable 2-Kbyte Security ID space locked via LSID command.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 Kbytes) organized in uniform 4-Kbyte sectors |
| Operating Voltage | 2.3V–3.6V - enables single-supply operation across battery-powered and industrial rails |
| Max Read Frequency | 80 MHz (at –40°C to +125°C extended temp) - supports high-throughput firmware fetch in automotive ECUs |
| Erase Endurance | 100,000 cycles minimum - ensures reliable field-upgrade capability over product lifetime |
| Data Retention | Greater than 100 years - validated for long-term storage of calibration data and secure keys |
| Package | 8-contact WDFN (6 mm × 5 mm) - provides thermal efficiency and board-area savings vs. SOIC-8 |
| Temperature Range | –40°C to +125°C (Extended) - qualified per AEC-Q100 Grade 1 for under-hood automotive use |
Pinout & Package
Package: 8-contact WDFN (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low throughout command sequence to prevent premature termination |
| SO/SIO1 | Serial Data Output / Quad I/O Line 1 | Default SPI output pin; reconfigured as bidirectional SIO1 in SQI mode after EQIO command |
| WP#/SIO2 | Write-Protect Input / Quad I/O Line 2 | Hardware write-protection control in SPI modes; becomes SIO2 in SQI mode when IOC = 1 |
| VSS | Ground | Reference return path for all internal circuitry and I/O buffers |
| VDD | Power Supply | 2.3V–3.6V core and I/O supply; decoupling capacitor required per datasheet layout guidelines |
| RESET#/HOLD#/SIO3 | Reset/Hold Select / Quad I/O Line 3 | Configurable via RSTHLD bit: reset function (RST#) or hold function (HOLD#); serves as SIO3 in SQI mode |
| SCK | Serial Clock | Timing reference for all serial transfers; rising edge latches input, falling edge outputs data |
| SI/SIO0 | Serial Data Input / Quad I/O Line 0 | Default SPI input pin; reconfigured as bidirectional SIO0 in SQI mode after EQIO command |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4-bit multiplexed data transfer at same clock frequency - quadruples throughput vs. standard SPI x1 mode |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors + 32-Kbyte and 64-Kbyte overlay blocks - allows granular firmware partitioning and OTA update management |
| Write-Suspend Capability | Interrupt active program/erase to service higher-priority reads - essential for real-time deterministic response in safety-critical systems |
| OTP Security ID | Factory-programmed 128-bit unique identifier + 2-Kbyte user-programmable area - supports device authentication and secure key binding |
| AEC-Q100 Qualification | Qualified for automotive Grade 1 (–40°C to +125°C) - meets reliability and stress-test requirements for engine control and ADAS modules |
Applications
| Automotive Instrument Cluster | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing calibrated gauge graphics, driver preference profiles, and CAN message lookup tables in digital dashboards. IC Role / Device Role / Timing Role: Nonvolatile boot code and configuration storage with fast random-access read capability via SQI burst mode. Use Value: 80 MHz read speed and AEC-Q100 qualification ensure deterministic startup timing and operational reliability under thermal cycling. | Use Scenario: Holding ladder logic firmware, I/O mapping tables, and real-time OS kernel images in programmable logic controllers. IC Role / Device Role / Timing Role: Primary flash storage for field-upgradable firmware with sector-level erase granularity for partial updates. Use Value: 4-Kbyte uniform sectors enable atomic firmware patching without full chip erase, minimizing downtime during maintenance. |
| IoT Edge Node Boot Code | Medical Diagnostic Device Calibration Data |
Use Scenario: Hosting secure bootloader and encrypted application image in battery-powered wireless sensors. IC Role / Device Role / Timing Role: Trusted boot source with OTP Security ID for cryptographic verification of firmware integrity. Use Value: Factory-programmed 128-bit ID prevents cloning and enables secure key derivation for TLS handshake acceleration. | Use Scenario: Retaining sensor calibration coefficients, patient history metadata, and regulatory compliance logs in portable ultrasound units. IC Role / Device Role / Timing Role: Long-term nonvolatile storage with >100-year data retention guarantee for audit-trail-critical records. Use Value: 100,000-cycle endurance supports frequent recalibration logging while maintaining FDA-grade traceability. |
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 W25Q20EW | 2-Mbit density, 104 MHz max read, SOIC-8/WSON-8 packages; lacks AEC-Q100 qualification and OTP Security ID | Targeted at commercial-grade consumer electronics; not suitable for automotive safety-critical functions | Select when cost sensitivity outweighs automotive qualification and security requirements |
| Cypress S25FL032P | 32-Mbit density, 80 MHz read, supports QSPI and DDR modes; no OTP ID or write-suspend feature | Used in high-capacity firmware storage for networking equipment; incompatible pinout and command set | Choose for larger code footprint needs where SQI protocol compatibility is not required |
Compared with W25Q20EW and S25FL032P, the SST26VF020AT-80E/MF uniquely combines AEC-Q100 Grade 1 qualification, integrated OTP Security ID, and write-suspend capability - making it the only option among the three qualified for automotive instrument cluster boot storage with secure firmware validation.
Availability
SST26VF020AT-80E/MF is available at Aetrix Electronics and suitable for automotive ECU firmware storage, industrial PLC code retention, and medical device calibration data logging requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SST26VF020AT-80E/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 emphasis on embedded control and connectivity.
The SST26VF020AT-80E/MF belongs to Microchip's Serial Quad I/O™ Flash family, engineered for high-reliability, low-power, and space-constrained applications in automotive, industrial, and medical electronics where AEC-Q100 compliance and secure firmware storage are mandatory.
FAQ
What is the maximum operating frequency of the SST26VF020AT-80E/MF in extended temperature range?
The SST26VF020AT-80E/MF supports up to 80 MHz maximum read frequency when operating across the extended temperature range of –40°C to +125°C. This rating is validated per AEC-Q100 stress testing and applies to both SPI x4 and SQI protocols. The device achieves this performance using Microchip's SuperFlash® technology, which reduces current draw and erase time versus conventional flash architectures - directly enabling faster firmware execution in automotive ECUs without increasing system power budget. The SST26VF020AT-80E/MF maintains full command-set compatibility with legacy SPI flash devices while delivering quadrupled bandwidth in SQI mode.
Does the SST26VF020AT-80E/MF support hardware write protection, and how is it configured?
Yes, the SST26VF020AT-80E/MF supports hardware write protection via the WP# pin, but only in SPI single-bit and dual-bit read modes - not in SQI mode. Activation requires setting the WPEN bit (bit 7 of Configuration register) to '1' and configuring IOC = 0. When WP# is driven low under these conditions, it locks the BPL bit in the STATUS register, preventing changes to BP0/BP1 block protection settings. The SST26VF020AT-80E/MF ships with WPEN = 0 by default, so hardware write protection must be explicitly enabled via Configuration register write. This design allows safe deployment in systems with grounded WP# pins while retaining full write access until protection is intentionally activated.
How does the Security ID feature of the SST26VF020AT-80E/MF work, and what portion is factory-programmed?
The SST26VF020AT-80E/MF includes a 2-Kbyte Security ID (Sec ID) space divided into two segments: a factory-programmed 128-bit unique identifier that cannot be altered, and a user-programmable area for custom keys or certificates. The factory segment is laser-programmed during wafer test and provides cryptographically verifiable device identity. Users program the remaining space via the PSID command and lock it permanently using the LSID command - after which the SEC bit in the Configuration register becomes '1' and remains irreversible. This structure enables secure boot chain validation and anti-counterfeiting in automotive and medical applications where the SST26VF020AT-80E/MF serves as trusted root-of-trust storage.
Can the SST26VF020AT-80E/MF be used in both SPI and SQI protocols, and how is mode switching performed?
Yes, the SST26VF020AT-80E/MF supports both traditional SPI (x1/x2) and SQI (x4) protocols. It powers up in SPI mode by default for backward compatibility. To enter SQI mode, the host must first issue the Enable Quad I/O (EQIO, 0x38) command, then set the IOC bit (bit 1 of Configuration register) to '1'. Once configured, SIO[3:0] pins operate as bidirectional quad lines for command, address, and data transfer. The SST26VF020AT-80E/MF supports Mode 0 and Mode 3 clocking, and all SQI commands (e.g., SQOR, SQIOR) require IOC = 1 - ensuring deterministic protocol selection without risk of accidental mode corruption during initialization sequences.
What is the erase endurance and data retention specification for the SST26VF020AT-80E/MF?
The SST26VF020AT-80E/MF guarantees minimum 100,000 program/erase cycles per sector and greater than 100 years of data retention at +125°C - verified through accelerated life testing per JEDEC standards. These specifications are achieved using Microchip's proprietary SuperFlash® split-gate cell technology, which minimizes charge loss and tunnel oxide stress. The SST26VF020AT-80E/MF maintains these ratings across its full –40°C to +125°C operating range, making it suitable for automotive and industrial applications where firmware updates occur infrequently but must remain absolutely reliable over 15+ year product lifetimes. No derating is required for extended temperature operation.
SST26VF020AT-80E/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:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 80 MHz
- Write Cycle Time - Word, Page:
- 1.5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WDFN (5x6)
SST26VF020AT-80E/MF FAQ
1.How can I place an order for SST26VF020AT-80E/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF020AT-80E/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 SST26VF020AT-80E/MF reliable?
The price and inventory of SST26VF020AT-80E/MF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF020AT-80E/MF is usually 5 days.
3.What payment methods are accepted for SST26VF020AT-80E/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF020AT-80E/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF020AT-80E/MF?
SST26VF020AT-80E/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF020AT-80E/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 SST26VF020AT-80E/MF?
For technical support, including SST26VF020AT-80E/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF020AT-80E/MF requirements.
6.How does Aetrix verify that SST26VF020AT-80E/MF is sourced from the original manufacturer or authorized distributors?
All SST26VF020AT-80E/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 SST26VF020AT-80E/MF meets industry standards.
7.What is the process for return or replacement of SST26VF020AT-80E/MF?
All SST26VF020AT-80E/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF020AT-80E/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 SST26VF020AT-80E/MF part is unused and in its original packaging.
Return procedure for SST26VF020AT-80E/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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