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Microchip Technology SST26VF020AT-104I/MF
- Part No.:
- SST26VF020AT-104I/MF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST26VF020AT-104I/MF.pdf
- Description:
- IC FLASH 2MBIT SPI/QUAD 8WDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,330
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Product details
Overview
SST26VF020AT-104I/MF from Microchip Technology is a 2-Mbit Serial Quad I/O™ (SQI™) Flash memory IC designed for embedded code storage and data logging in space-constrained systems. It operates from 2.7V–3.6V, supports 104 MHz SPI/SQI read speeds, features uniform 4-Kbyte sectors and OTP 2-Kbyte Security ID, and is qualified for industrial temperature range (−40°C to +85°C) in an 8-contact WDFN package.
For engineers reviewing the SST26VF020AT-104I/MF datasheet, SST26VF020AT-104I/MF pinout, SST26VF020AT-104I/MF application, or SST26VF020AT-104I/MF equivalent, key selection criteria include quad-I/O burst performance, software/hardware write protection granularity, sector/block erase timing, security ID programmability, and AEC-Q100 qualification for automotive subsystems.
Technical Context
The SST26VF020AT-104I/MF implements a six-wire SQI interface with multiplexed SIO[3:0] pins supporting x1/x2/x4 protocols and backward-compatible SPI Mode 0/3 operation. Its SuperFlash® split-gate cell architecture enables 100,000 program/erase cycles and >100-year data retention at industrial temperatures.
It integrates dual protection mechanisms: software-configurable block protection via STATUS register BP0/BP1 bits and hardware write-protection using the WP# pin with configurable WPEN/IOC bits. The device also supports write-suspend, security ID locking, and volatile lock-down of protection settings via LDPS command.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 Kbytes), organized as uniform 4-Kbyte sectors with 32-Kbyte and 64-Kbyte overlay blocks |
| Max Clock Frequency | 104 MHz (at 2.7V–3.6V, Industrial grade), enabling high-throughput code execution |
| Supply Voltage | 2.7V–3.6V single supply - eliminates need for voltage translation in 3.3V systems |
| Endurance & Retention | 100,000 program/erase cycles minimum; >100 years data retention at 85°C |
| Erase Time | 20 ms typical for 4-Kbyte sector erase; 40 ms typical for full chip erase |
| Security ID | 2-Kbyte OTP area: 128-bit factory-unique ID + user-programmable segment, lockable via LSID command |
| Operating Temp | Industrial grade: −40°C to +85°C - validated for extended ambient operation in industrial control units |
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 enable for all serial commands; must remain low during full instruction sequence |
| SIO[3:0] | Serial I/O (Quad) | Multiplexed bidirectional pins for command/address/data in SQI mode; default SI/SO in SPI mode |
| SCK | Serial Clock | Provides timing; inputs latched on rising edge, outputs shifted on falling edge |
| WP# | Write-Protect Input | Hardware-enables block protection lock-down when WPEN=1 and IOC=0 |
| HOLD#/RST# | Hold or Reset Select | Configurable via RSTHLD bit: HOLD# pauses SPI transfers; RST# triggers hardware reset (SPI x1/x2 only) |
| VDD / VSS | Power / Ground | Single 2.7V–3.6V supply rail; decoupling required per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | 4-bit multiplexed SIO[3:0] enables 4× throughput vs. standard SPI at same clock frequency |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors + 32/64-Kbyte overlay blocks allow granular firmware update without full chip erase |
| Write-Suspend Capability | Interrupt active program/erase to service higher-priority reads or writes elsewhere in memory |
| OTP Security ID | Factory-unique 128-bit ID + 2-Kbyte user area supports secure boot authentication and device binding |
| AEC-Q100 Qualified | Validated for automotive applications including infotainment, ADAS sensors, and body control modules |
Applications
| Automotive Infotainment Boot Storage | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing boot code and UI assets for head-unit microcontrollers requiring fast, reliable startup after ignition cycle. IC Role / Device Role / Timing Role: Nonvolatile code storage with 104 MHz SQI read speed and <40 ms chip erase for OTA firmware rollback. Use Value: Enables sub-500 ms cold boot time and secure firmware validation using factory-programmed Security ID. | Use Scenario: Holding configuration parameters and ladder logic firmware in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Data-logging and firmware storage with 100K-cycle endurance and >100-year retention at 85°C ambient. Use Value: Eliminates field failures due to data corruption in uncooled control cabinets operating continuously for 15+ years. |
| Medical Device Calibration Data | Smart Meter Firmware Update |
Use Scenario: Storing calibrated sensor offsets and regulatory compliance certificates in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with OTP Security ID and write-suspend for concurrent calibration updates. Use Value: Meets IEC 62304 traceability requirements via locked Security ID and hardware/software write protection. | Use Scenario: Hosting upgradable metering firmware in utility smart meters exposed to wide temperature swings and long service life. IC Role / Device Role / Timing Role: Field-upgradable code storage with AEC-Q100 qualification and 4-Kbyte sector erase for delta updates. Use Value: Reduces over-the-air update time by 75% vs. legacy SPI Flash and ensures integrity across −40°C to +125°C extended range. |
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, 133 MHz max, 1.65V–3.6V supply, no OTP Security ID, no SQI mode | Lacks hardware reset pin multiplexing and security ID - suitable for cost-sensitive consumer IoT but not automotive boot | Select when ultra-low voltage operation (1.65V) is required and security features are unnecessary |
| Cypress S25FL032P | 32-Mbit density, 80 MHz max, 2.7V–3.6V, supports QPI but no OTP ID or AEC-Q100 | Higher density and QPI support, but lacks factory-unique ID and automotive qualification | Choose for larger firmware images where SQI bandwidth is secondary to pin compatibility with legacy Cypress designs |
Compared with W25Q20EW and S25FL032P, the SST26VF020AT-104I/MF uniquely combines AEC-Q100 qualification, OTP Security ID, and SQI protocol in a 2-Mbit footprint - making it the only option for safety-critical automotive boot storage requiring both speed and traceability.
Availability
SST26VF020AT-104I/MF is available at Aetrix Electronics and suitable for automotive infotainment, industrial PLCs, medical diagnostics, and smart metering applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SST26VF020AT-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, Flash memory, and security solutions for embedded systems.
The SST26VF020AT-104I/MF belongs to Microchip's Serial Quad I/O™ Flash family, engineered for high-reliability code storage in automotive, industrial, and medical applications where speed, security, and longevity are critical.
FAQ
What is the maximum operating frequency of the SST26VF020AT-104I/MF in SQI mode?
The SST26VF020AT-104I/MF supports up to 104 MHz in SQI mode when operated within its 2.7V–3.6V supply range and industrial temperature grade. This frequency applies to x4 read operations such as SQIOR (EBH) and SQOR (6BH), delivering up to 416 Mbps effective throughput. The device automatically defaults to SPI mode at power-up and requires the EQIO command to enable SQI functionality.
Does the SST26VF020AT-104I/MF support hardware reset, and how is it configured?
Yes, the SST26VF020AT-104I/MF supports hardware reset via the RESET#/HOLD#/SIO3 pin. To enable reset functionality, bit 6 (RSTHLD) of the Configuration register must be set to '1'. By default, this bit is '0', configuring the pin as HOLD#. Once RSTHLD = 1, driving the pin low for ≥TRST time resets internal logic, clears BUSY/WEL bits, and reverts to SPI mode. Hardware reset is only supported in SPI x1/x2 protocols.
How is the Security ID implemented in the SST26VF020AT-104I/MF, and can it be reprogrammed?
The SST26VF020AT-104I/MF includes a 2-Kbyte Security ID with a factory-programmed 128-bit unique identifier and a user-programmable segment. The factory portion is one-time-programmable and cannot be altered. The user area is programmed using the PSID command and locked permanently with LSID - after which no further writes are possible. Neither segment supports erasure, ensuring immutable device identity for secure boot and anti-counterfeiting.
What package type does the SST26VF020AT-104I/MF use, and what are its key mechanical properties?
The SST26VF020AT-104I/MF uses an 8-contact WDFN package measuring 6 mm × 5 mm with 0.5 mm pitch. It is RoHS-compliant, moisture-sensitive level 3, and features exposed pad thermal enhancement. Pin assignments match the SOIC-8 variant electrically but offer 40% smaller footprint and improved thermal performance - critical for dense PCB layouts in automotive and industrial modules.
Can the SST26VF020AT-104I/MF operate in both SPI and SQI modes simultaneously?
No, the SST26VF020AT-104I/MF operates exclusively in either SPI or SQI mode at any given time. It powers up in SPI mode (SI/SO pins active) and transitions to SQI mode only after issuing the EQIO command and setting the IOC bit in the Configuration register. While in SQI mode, the HOLD# and WP# functions are disabled, and SIO[3:0] become fully multiplexed. Mode switching requires explicit command sequencing and cannot occur concurrently.
SST26VF020AT-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:
- 2Mbit
- Memory Organization:
- 256K 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)
SST26VF020AT-104I/MF FAQ
1.How can I place an order for SST26VF020AT-104I/MF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF020AT-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 SST26VF020AT-104I/MF reliable?
The price and inventory of SST26VF020AT-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 SST26VF020AT-104I/MF is usually 5 days.
3.What payment methods are accepted for SST26VF020AT-104I/MF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF020AT-104I/MF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF020AT-104I/MF?
SST26VF020AT-104I/MF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF020AT-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 SST26VF020AT-104I/MF?
For technical support, including SST26VF020AT-104I/MF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF020AT-104I/MF requirements.
6.How does Aetrix verify that SST26VF020AT-104I/MF is sourced from the original manufacturer or authorized distributors?
All SST26VF020AT-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 SST26VF020AT-104I/MF meets industry standards.
7.What is the process for return or replacement of SST26VF020AT-104I/MF?
All SST26VF020AT-104I/MF units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF020AT-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 SST26VF020AT-104I/MF part is unused and in its original packaging.
Return procedure for SST26VF020AT-104I/MF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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