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Microchip Technology SST26VF020A-80E/SN
- Part No.:
- SST26VF020A-80E/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST26VF020A-80E/SN.pdf
- Description:
- IC FLASH 2MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:430
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Product details
Overview
SST26VF020A-80E/SN from Microchip Technology is a 2-Mbit Serial Quad I/O™ (SQI™) Flash memory IC supporting dual-mode serial interface (SPI x1/x2/x4 and SQI x4), 80 MHz max clock frequency at 2.3V–3.6V, 4-Kbyte uniform sectors, and 256-byte page programming - deployed in embedded boot code storage, firmware update partitions, and configuration data retention for industrial microcontroller systems.
For engineers reviewing the SST26VF020A-80E/SN datasheet, SST26VF020A-80E/SN pinout, SST26VF020A-80E/SN application, or SST26VF020A-80E/SN equivalent, key selection considerations include quad-I/O throughput vs. SPI compatibility, 2.3V–3.6V single-supply operation, hardware write protection via WP# pin, 100,000-cycle endurance, and AEC-Q100 qualification for extended-temperature automotive use.
Technical Context
The SST26VF020A-80E/SN implements a six-wire SQI interface (SCK, CE#, RESET#/HOLD#/SIO3, WP#/SIO2, SO/SIO1, SI/SIO0, VDD, VSS) with multiplexed 4-bit I/Os enabling 4× bandwidth over standard SPI at same clock frequency. It uses proprietary SuperFlash® split-gate CMOS technology for faster erase (20 ms sector, 40 ms chip) and lower energy per operation.
It supports dual operational modes: default SPI mode (SI/SO pins active) after power-on reset, and configurable SQI mode (SIO[3:0] active) via EQIO command. Mode 0 and Mode 3 clock polarity are supported, and burst reads (8/16/32/64-byte wrap-around) are available in both protocols.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as 64 uniform 4-Kbyte sectors |
| Interface Protocol | Serial Quad I/O™ (SQI) and SPI-compatible (x1/x2/x4), with Mode 0/Mode 3 support |
| Max Clock Frequency | 80 MHz (2.3V–3.6V, Industrial & Extended temp range) |
| Write Endurance | 100,000 program/erase cycles minimum per sector |
| Data Retention | Greater than 100 years at +85°C |
| Erase Time | 20 ms typical for 4-Kbyte sector; 40 ms typical for full chip |
| Page Program Size | 256 bytes per page in x1 or x4 mode |
| Operating Voltage | 2.3V–3.6V single supply - enables direct interfacing with 2.5V/3.3V logic domains |
Pinout & Package
Package: 8-lead SOIC (3.90 mm) - RoHS-compliant, surface-mount, industry-standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low enable signal; must remain low during entire command sequence including address/data transfer |
| SO/SIO1 | Serial Output / Quad I/O 1 | Default SPI output (SO); becomes bidirectional SIO1 in SQI mode after EQIO command |
| WP#/SIO2 | Write-Protect Input / Quad I/O 2 | Hardware write-protection control in SPI mode; becomes SIO2 in SQI mode when IOC=1 |
| VSS | Ground | Reference return path for all digital and I/O circuits |
| VDD | Power Supply | 2.3V–3.6V supply input; powers internal logic, memory array, and I/O buffers |
| RESET#/HOLD#/SIO3 | Reset/Hold Select / Quad I/O 3 | Configurable pin: RESET# (when RSTHLD=1), HOLD# (RSTHLD=0), or SIO3 (IOC=1) |
| SCK | Serial Clock | Master-generated clock; rising edge latches input, falling edge shifts out output |
| SI/SIO0 | Serial Input / Quad I/O 0 | Default SPI input (SI); becomes bidirectional SIO0 in SQI mode after EQIO command |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Interface | Enables 4× data throughput vs. standard SPI at identical clock rate - reduces firmware read latency in boot and update sequences |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors + overlay 32-Kbyte and 64-Kbyte blocks - allows granular firmware partitioning without over-erasing |
| Write-Suspend Capability | Allows interruption of active program/erase to service urgent read requests - critical for real-time system responsiveness |
| One-Time-Programmable Security ID | 2-Kbyte OTP area with factory-programmed 128-bit unique ID + user-programmable segment - supports device authentication and secure provisioning |
| AEC-Q100 Qualified | Validated for automotive applications across -40°C to +125°C extended temperature range - suitable for engine control, ADAS, and infotainment modules |
| Software & Hardware Write Protection | Combines STATUS register BP bits with WP# pin and Configuration register (WPEN/IOC) - enables layered security for boot code and calibration data |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image executed on MCU power-up. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast sequential read access and deterministic startup timing. Use Value: Enables reliable cold-boot within <100 ms using high-speed read (0BH) at 80 MHz, leveraging continuous linear burst mode. | Use Scenario: Dedicated memory region for validated firmware updates prior to atomic swap and validation. IC Role / Device Role / Timing Role: Isolated, protected update staging area supporting atomic erase-and-program cycles. Use Value: Uniform 4-Kbyte sectors allow precise overwrite of update payload without affecting active runtime code; write-suspend ensures no interruption during OTA download. |
| Configuration Data Retention | Automotive ECU Calibration Storage |
Use Scenario: Persistent storage of user preferences, network settings, and runtime-calibrated parameters across power cycles. IC Role / Device Role / Timing Role: Low-power, byte-addressable nonvolatile memory accessed intermittently during system idle. Use Value: 15 µA standby current and 100-year data retention ensure settings survive >10 years of intermittent use in battery-backed systems. | Use Scenario: Storing sensor calibration coefficients, actuator trim values, and fault history logs in engine control units. IC Role / Device Role / Timing Role: AEC-Q100-qualified, extended-temperature nonvolatile storage with hardware write lock. Use Value: WP# pin + BPL bit lock-down prevents accidental corruption during vehicle vibration or EMI events; 100,000-cycle endurance supports lifetime recalibration. |
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, 104 MHz max (3V), DTR support, no SQI mode, 1.65V–3.6V VCC | Lacks quad-I/O protocol; supports double-transfer-rate reads but no burst-wrap or write-suspend | Preferred where SPI-only interface suffices and lowest voltage operation (<2.3V) is required |
| Cypress S25FL020L | 2-Mbit, 104 MHz max (3V), HyperBus™ option, no SQI, 2.7V–3.6V VCC, 50K endurance | No SQI or write-suspend; offers optional HyperBus parallel-like interface for higher bandwidth | Selected when migrating toward scalable HyperFlash architecture or requiring higher single-operation reliability margin |
Compared with Winbond W25Q20EW and Cypress S25FL020L, the SST26VF020A-80E/SN uniquely delivers SQI protocol acceleration, write-suspend for real-time responsiveness, and AEC-Q100 qualification at extended temperature - making it optimal for automotive and industrial systems demanding both performance and functional safety assurance.
Availability
SST26VF020A-80E/SN is available at Aetrix Electronics and suitable for industrial control firmware storage, automotive ECU calibration retention, and IoT device secure boot applications requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for SST26VF020A-80E/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 company specializing in microcontrollers, analog devices, and memory solutions, with emphasis on embedded control, connectivity, and security.
The SST26VF020A-80E/SN belongs to Microchip's Serial Quad I/O™ Flash family, designed specifically for high-reliability, low-pin-count code and data storage in resource-constrained embedded systems where bandwidth, power, and qualification matter.
FAQ
What is the maximum operating frequency of the SST26VF020A-80E/SN and under what voltage conditions?
The SST26VF020A-80E/SN supports a maximum clock frequency of 80 MHz when operated across the 2.3V–3.6V supply range, specified for both Industrial (–40°C to +85°C) and Extended (–40°C to +125°C) temperature grades. This rating is confirmed in DS20006279A, Section 1.0 Features. The device does not support 104 MHz operation at 2.3V; that speed is only guaranteed at 2.7V–3.6V, which applies to other variants like SST26VF020A-104E/SN - not the -80E/SN.
Does the SST26VF020A-80E/SN support both SPI and SQI protocols, and how is mode switching handled?
Yes, the SST26VF020A-80E/SN supports both legacy SPI (x1/x2) and Serial Quad I/O™ (SQI x4) protocols. It powers up in SPI mode by default. Switching to SQI mode requires issuing the Enable Quad I/O (EQIO, 0x38) command and setting the IOC bit (bit 1) in the Configuration register. Once configured, SIO[3:0] pins become active for bidirectional quad-data transfer - verified in DS20006279A Sections 4.0 and 4.7.1.
What package options are available for the SST26VF020A-80E/SN, and is the /SN suffix indicative of a specific variant?
The SST26VF020A-80E/SN is supplied in an 8-lead SOIC (3.90 mm) package, as explicitly stated in DS20006279A, Section 1.0 Features and Figure 2-1. The "/SN" suffix denotes the SOIC packaging variant per Microchip's part numbering convention; alternative packages include 8-contact WDFN (denoted /W), but the /SN version is SOIC-only.
How does hardware write protection work on the SST26VF020A-80E/SN, and what pins are involved?
Hardware write protection on the SST26VF020A-80E/SN is implemented via 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 disables writes to the Block Protection Lock (BPL) bit and STATUS register BP0/BP1 bits - preventing unauthorized modification of protection settings. This behavior is fully documented in DS20006279A Section 4.2 and Table 4-1.
Is the SST26VF020A-80E/SN qualified for automotive applications, and what certification does it hold?
Yes, the SST26VF020A-80E/SN is explicitly Automotive Electronics Council AEC-Q100 qualified, as stated in DS20006279A, Section 1.0 Features. It is rated for the Extended temperature range (–40°C to +125°C) and meets stress test requirements for automotive-grade reliability - making it suitable for engine control, body electronics, and ADAS subsystems where qualification is mandatory.
SST26VF020A-80E/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:
- 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-SOIC
SST26VF020A-80E/SN FAQ
1.How can I place an order for SST26VF020A-80E/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for SST26VF020A-80E/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-80E/SN reliable?
The price and inventory of SST26VF020A-80E/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-80E/SN is usually 5 days.
3.What payment methods are accepted for SST26VF020A-80E/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST26VF020A-80E/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST26VF020A-80E/SN?
SST26VF020A-80E/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST26VF020A-80E/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-80E/SN?
For technical support, including SST26VF020A-80E/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST26VF020A-80E/SN requirements.
6.How does Aetrix verify that SST26VF020A-80E/SN is sourced from the original manufacturer or authorized distributors?
All SST26VF020A-80E/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-80E/SN meets industry standards.
7.What is the process for return or replacement of SST26VF020A-80E/SN?
All SST26VF020A-80E/SN units undergo pre-shipment inspection (PSI). If there is an issue with SST26VF020A-80E/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-80E/SN part is unused and in its original packaging.
Return procedure for SST26VF020A-80E/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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