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Microchip Technology SST26VF020A-104I/SN
- Part No.:
- SST26VF020A-104I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST26VF020A-104I/SN.pdf
- Description:
- IC FLASH 2MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:664
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Product details
Overview
SST26VF020A-104I/SN from Microchip Technology is a 2-Mbit Serial Quad I/O™ (SQI™) Flash memory IC operating at 2.7V–3.6V, supporting 104 MHz SPI and SQI protocols with 4-Kbyte uniform sectors, 100,000 write/erase endurance, and AEC-Q100 qualification for automotive applications.
For engineers reviewing the SST26VF020A-104I/SN datasheet, SST26VF020A-104I/SN pinout, SST26VF020A-104I/SN application, or SST26VF020A-104I/SN equivalent, key selection considerations include quad-I/O burst performance, hardware/software write protection granularity, OTP Security ID capability, and industrial/extended temperature support in SOIC-8 and WDFN-8 packages.
Technical Context
The SST26VF020A-104I/SN implements a six-wire SQI interface (SCK, CE#, RESET#/HOLD#/SIO3, SIO[3:0]) enabling 4-bit multiplexed command/address/data transfer, delivering up to 4× throughput versus standard SPI at identical clock frequency. It supports Mode 0 and Mode 3 clock polarity/idle states.
Internally built on SuperFlash® technology, it features split-gate cells and thick-oxide tunneling injectors for enhanced reliability-guaranteeing ≥100 years data retention and 100,000 program/erase cycles. Its dual-mode operation (SPI x1/x2/x4 and SQI) ensures backward compatibility while enabling high-speed boot code execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (256 Kbytes), organized as 64 uniform 4-Kbyte sectors |
| Max Clock Frequency | 104 MHz (industrial temp, 2.7V–3.6V), enabling ~416 MB/s effective quad-I/O read bandwidth |
| Write Endurance | 100,000 program/erase cycles per sector-sufficient for firmware update logging and configuration storage |
| Data Retention | Greater than 100 years at +85°C-validates long-term reliability in automotive and industrial deployments |
| Operating Voltage | 2.7V–3.6V (full 104 MHz operation); also supports 2.3V–3.6V at 80 MHz for extended voltage margin |
| Temperature Range | Industrial: –40°C to +85°C; Extended: –40°C to +125°C-AEC-Q100 qualified for under-hood automotive use |
| Security Feature | 2-Kbyte OTP Security ID with factory-programmed 128-bit unique ID and user-programmable area-enables device authentication and secure boot binding |
Pinout & Package
Package: 8-lead SOIC (3.90 mm) and 8-contact WDFN (6 mm × 5 mm). Both packages share identical pin mapping per Figure 2-1 of DS20006279A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCK | Serial Clock Input | Timing reference for all serial transfers; commands/addresses latched on rising edge, data shifted out on falling edge |
| CE# | Chip Enable (active-low) | Activates device communication; must remain low throughout command sequence or write operation |
| SIO[3:0] | Quad I/O Bidirectional Data Bus | Carries commands, addresses, and data in SQI mode; configurable as SI/SO/WP#/HOLD# in SPI mode via IOC bit |
| WP# | Hardware Write-Protect Input | Enables lock-down of STATUS register BP bits when WPEN=1 and IOC=0-prevents accidental firmware corruption |
| HOLD# | Communication Pause Control | Halts active SPI read without resetting internal state; only functional in SPI x1/x2 modes, disabled in SQI mode |
| RESET# | Hardware Reset Input | Resets protocol to SPI mode, clears BUSY/WEL, sets BP0/BP1=1; requires RSTHLD=1 in Configuration register |
| VDD | Power Supply | 2.7V–3.6V supply input; powers core logic and I/O buffers-supports single-supply system integration |
| VSS | Ground Reference | Return path for all internal circuits and I/O signals-must be low-impedance for stable timing and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O (SQI) Interface | Enables 4-bit multiplexed command/address/data transfer-doubles effective throughput over dual-I/O and quadruples over standard SPI at same clock rate |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors + overlay 32-Kbyte and 64-Kbyte blocks-allows granular firmware partitioning and fast partial updates |
| Write-Suspend Capability | Allows interruption of active program/erase to service time-critical reads-critical for real-time systems with concurrent access requirements |
| OTP Security ID | Factory-programmed 128-bit unique ID + 2-Kbyte user-programmable space-supports cryptographic key binding and anti-cloning in secure boot flows |
| Software/Hardware Write Protection | Configurable BP0/BP1 bits + BPL lock-down + WP# pin control-provides layered defense against unintended writes during power transitions or firmware faults |
Applications
| Automotive Instrument Cluster | Industrial PLC Firmware Storage |
|---|---|
|
Use Scenario: Storing calibrated display assets, gauge configurations, and OTA update staging area in a CAN-connected digital dashboard. IC Role / Device Role / Timing Role: Nonvolatile firmware and asset memory with AEC-Q100 qualification, supporting fast boot from SQI interface and secure firmware validation via OTP Security ID. Use Value: Enables deterministic <100 ms boot time using 104 MHz SQI burst reads and prevents unauthorized firmware modification through hardware write-protection and BP bit locking. |
Use Scenario: Holding ladder logic runtime images, calibration tables, and field-upgradable motion control parameters in DIN-rail mounted controllers. IC Role / Device Role / Timing Role: High-reliability configuration and firmware store with 100-year data retention and 100,000-cycle endurance-surviving decades of factory floor thermal cycling. Use Value: Eliminates need for external backup capacitors or battery-backed SRAM by guaranteeing parameter integrity across 10+ year product lifecycles without maintenance. |
| Medical Infusion Pump Boot Memory | Smart Energy Meter Firmware Vault |
|
Use Scenario: Hosting certified bootloader and safety-critical application code in Class II medical devices requiring IEC 62304 compliance. IC Role / Device Role / Timing Role: Safety-assured boot memory with write-suspend capability-allowing real-time alarm servicing during firmware verification or update. Use Value: Ensures uninterrupted delivery of life-sustaining therapy by permitting immediate interrupt response without corrupting ongoing flash erase/program operations. |
Use Scenario: Securing AMI firmware, tariff tables, and cryptographic keys in utility-grade meters deployed in outdoor substations. IC Role / Device Role / Timing Role: Tamper-resistant firmware vault with extended temperature range (–40°C to +125°C) and OTP-based device identity binding. Use Value: Meets ANSI C12.22 security requirements by preventing cloning via unique factory ID and blocking unauthorized reprogramming via BP0/BP1 + BPL lock-down. |
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 SPI-only (no SQI), 133 MHz max, 1.65V–1.95V/2.7V–3.6V dual-voltage support | Lacks quad-I/O interface and Security ID; supports lower VDD but no AEC-Q100 qualification | Select when cost-sensitive SPI-only designs require ultra-low-voltage operation-not for SQI bandwidth or automotive use. |
| Cypress S25FL032P | 32-Mbit density, 85 MHz max, supports XIP and DDR modes; no OTP Security ID or write-suspend | Higher capacity and XIP capability, but lacks AEC-Q100 rating and secure identity features | Choose for larger firmware images needing execute-in-place; avoid when 2-Mbit size, automotive qualification, or device authentication are mandatory. |
Compared with SST26VF020A-104I/SN, W25Q20EW offers lower-voltage flexibility but sacrifices SQI speed, automotive qualification, and secure identity; S25FL032P provides greater density and XIP support but omits critical security and reliability features required for safety-critical embedded systems.
Availability
SST26VF020A-104I/SN is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, and medical infusion pumps requiring stable component supply, long-lifecycle support, and AEC-Q100-compliant nonvolatile memory.
Supply support for SST26VF020A-104I/SN 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and memory solutions, with global design centers and ISO/TS 16949-certified manufacturing.
The SST26VF020A-104I/SN belongs to Microchip's Serial Quad I/O™ Flash family, engineered specifically for high-reliability, high-speed boot and firmware storage in automotive, industrial, and medical systems demanding AEC-Q100 compliance and secure identity.
FAQ
What is the maximum operating frequency of the SST26VF020A-104I/SN in SQI mode?
The SST26VF020A-104I/SN supports up to 104 MHz in SQI mode when operated within the 2.7V–3.6V supply range and industrial temperature range (–40°C to +85°C). At 2.3V–3.6V, the maximum frequency drops to 80 MHz for extended temperature operation (–40°C to +125°C). This enables sustained quad-I/O read bandwidth exceeding 400 MB/s in optimized configurations.
Does the SST26VF020A-104I/SN support both SPI and SQI protocols simultaneously?
No-the SST26VF020A-104I/SN operates in either SPI mode (default after power-on reset) or SQI mode, selected via the Enable Quad I/O (EQIO) command (0x38). The IOC bit in the Configuration register must be set to '1' to enable SQI functionality; switching between modes requires explicit command sequencing and is not concurrent.
How is hardware write protection implemented on the SST26VF020A-104I/SN?
Hardware write protection on the SST26VF020A-104I/SN uses the WP# pin in conjunction with the WPEN bit (bit 7) and IOC bit (bit 1) in the Configuration register. When WPEN = 1 and IOC = 0, driving WP# low locks the BPL bit, preventing changes to BP0/BP1 block protection settings-ensuring firmware partitions remain immutable during system operation.
What is the purpose and structure of the Security ID feature in the SST26VF020A-104I/SN?
The SST26VF020A-104I/SN includes a 2-Kbyte OTP Security ID with two segments: a factory-programmed 128-bit unique identifier (non-erasable, non-modifiable) and a user-programmable area. It is accessed via PSID/RSID/LSID commands and can be permanently locked with LSID to prevent further writes-enabling device authentication and secure boot chain binding.
Can the SST26VF020A-104I/SN be used in automotive applications requiring AEC-Q100 qualification?
Yes-the SST26VF020A-104I/SN is explicitly AEC-Q100 qualified for automotive applications. It meets stress test requirements for temperature cycling, humidity, and ESD across its extended temperature range (–40°C to +125°C), and is rated for use in engine control units, ADAS modules, and instrument clusters where reliability and qualification are mandatory.
SST26VF020A-104I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST26 SQI®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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-SOIC
SST26VF020A-104I/SN FAQ
1.How can I place an order for SST26VF020A-104I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF020A-104I/SN 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 SST26VF020A-104I/SN reliable?
The price and inventory of SST26VF020A-104I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST26VF020A-104I/SN is usually 5 days.
3.What payment methods are accepted for SST26VF020A-104I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF020A-104I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF020A-104I/SN?
SST26VF020A-104I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF020A-104I/SN 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 SST26VF020A-104I/SN?
For technical support, including SST26VF020A-104I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF020A-104I/SN requirements.
6.How does Aetrix verify that SST26VF020A-104I/SN is sourced from the original manufacturer or authorized distributors?
All SST26VF020A-104I/SN 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 SST26VF020A-104I/SN meets industry standards.
7.What is the process for return or replacement of SST26VF020A-104I/SN?
All SST26VF020A-104I/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF020A-104I/SN, 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 SST26VF020A-104I/SN part is unused and in its original packaging.
Return procedure for SST26VF020A-104I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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