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Microchip Technology SST25VF020B-80-4C-QAE
- Part No.:
- SST25VF020B-80-4C-QAE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25VF020B-80-4C-QAE.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,526
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Product details
Overview
SST25VF020B-80-4C-QAE from Microchip Technology is a 2-Mbit SPI serial Flash memory IC with SuperFlash® technology, supporting 2.7V–3.6V single-supply operation, 80 MHz high-speed read (via 0BH command), and uniform 4-Kbyte/32-Kbyte/64-Kbyte erase granularity - deployed in embedded firmware storage, boot code retention, and configuration data logging for industrial microcontrollers.
For engineers reviewing the SST25VF020B-80-4C-QAE datasheet, SST25VF020B-80-4C-QAE pinout, SST25VF020B-80-4C-QAE application, or SST25VF020B-80-4C-QAE equivalent, key selection considerations include SPI Mode 0/3 compatibility, AAI word programming capability, hardware RY/BY# status via SO during AAI, HOLD#/WP# functional pin support, and industrial temperature range (-40°C to +85°C) compliance.
Technical Context
The SST25VF020B-80-4C-QAE implements a four-wire SPI interface with dual-mode clock polarity (Mode 0 and Mode 3), enabling interoperability with diverse host controllers. Its internal architecture features a split-gate SuperFlash® cell with thick-oxide tunneling injector, delivering 100,000 program/erase cycles and >100-year data retention without requiring high-voltage assist circuitry.
It supports three end-of-write detection methods: software polling of BUSY bit (bit 0) in STATUS register, hardware RY/BY# output on SO pin during Auto Address Increment (AAI) mode (enabled via EBSY command 70H), and fixed timing wait (TBP = 7 µs typical). Erase operations are partitioned into 4-Kbyte sectors, 32-Kbyte blocks, and 64-Kbyte blocks - all independently addressable and software-block-protected via BP1/BP0 bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as 512 uniform 4-Kbyte sectors |
| Operating Voltage | 2.7V–3.6V single supply - eliminates need for auxiliary voltage rails in 3.3V systems |
| Max Clock Frequency | 80 MHz for High-Speed Read (0BH instruction) - enables ≤12.5 ns per byte access at full speed |
| Erase Endurance | 100,000 program/erase cycles - validated per JEDEC JESD22-A117, suitable for field-upgradable firmware |
| Data Retention | Greater than 100 years at +25°C - specified per JEDEC JESD22-A108, no refresh required |
| Active Read Current | 10 mA typical at 80 MHz - enables low-power boot loading in battery-backed applications |
| Standby Current | 5 µA typical - supports ultra-low-power sleep modes in always-on edge devices |
Pinout & Package
Package: 8-contact WSON (6 mm × 5 mm), RoHS-compliant, industrial temperature grade (-40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence - enables multi-device SPI daisy-chaining |
| SO | Serial Data Output / RY/BY# | Primary data output (MSb-first); reconfigurable as hardware busy indicator during AAI mode via EBSY/DBSY commands |
| WP# | Write-Protect Input | Enables lock-down of Block Protection Lock (BPL) bit - prevents accidental STATUS register corruption when held low |
| SI | Serial Data Input | Command/address/data input latched on rising SCK edge - supports standard SPI master interface without level-shifting |
| SCK | Serial Clock | Bi-phase clock input supporting Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) - ensures compatibility with ARM/Cortex-M, PIC, and FPGA SPI peripherals |
| HOLD# | Hold Control | Suspends ongoing SPI transaction without deselecting device - preserves internal address pointer during interrupt servicing |
| VDD | Power Supply | 2.7V–3.6V core supply - decoupling capacitor required per Microchip layout guidelines (DS20005054D, Section 7.1) |
| VSS | Ground | Reference return path for all I/O and core logic - requires low-impedance connection to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces sequential byte programming time by eliminating repeated address transmission - critical for fast firmware updates |
| Hardware RY/BY# Status on SO Pin | Eliminates software polling overhead during AAI - enables deterministic timing control in real-time systems |
| Flexible Block Protection Scheme | BP1/BP0 bits enable selective locking of 0%, 25%, 50%, or 100% of memory array - protects bootloader while allowing application updates |
| Uniform Erase Granularity | Independent 4-Kbyte sector, 32-Kbyte block, and 64-Kbyte block erase - minimizes wear on frequently updated configuration regions |
| Industrial Temperature Range | -40°C to +85°C operation - qualified per AEC-Q100 stress test conditions for automotive and harsh-environment industrial use |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Logging |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating in factory-floor environments with wide thermal swings and EMI exposure. IC Role / Device Role / Timing Role: Nonvolatile boot memory holding primary firmware image; accessed at power-up via SPI master with 80 MHz high-speed read for sub-100ms boot latency. Use Value: 100,000-cycle endurance ensures ≥10 years of daily firmware updates; industrial temp rating guarantees reliability across -40°C to +85°C ambient. |
Use Scenario: Recording calibration parameters, sensor offsets, and usage history in portable diagnostic equipment requiring FDA-compliant data integrity and traceability. IC Role / Device Role / Timing Role: Secure configuration store with software write protection (BP1/BP0 + WP#) preventing unauthorized parameter modification during operation. Use Value: >100-year data retention eliminates periodic backup requirements; HOLD# pin enables atomic parameter writes during interrupt-driven sensor sampling. |
| Automotive Infotainment Bootloader | Smart Energy Meter Firmware Vault |
Use Scenario: Hosting secure bootloader code in automotive head units where firmware authenticity and anti-rollback protection are mandated by UNECE R155. IC Role / Device Role / Timing Role: Read-only execution memory for initial boot sequence; verified via cryptographic hash before transferring control to application flash. Use Value: Top/Bottom Sector Protection (TSP/BSP bits) isolates bootloader region from application updates; RoHS compliance meets automotive material restrictions. |
Use Scenario: Storing tariff tables, communication protocol stacks, and regulatory firmware patches in utility-grade smart meters deployed in outdoor enclosures. IC Role / Device Role / Timing Role: Field-upgradable firmware repository with AAI programming enabling <5s over-the-air (OTA) patch application. Use Value: 7 µs typical byte program time and 18 ms sector erase minimize meter downtime during remote updates; 5 µA standby current extends battery life in backup-powered units. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF021A-SSH-T | 2-Mbit density, 85 MHz max clock, but uses different status register layout and lacks AAI programming mode | No hardware RY/BY# on SO pin; relies solely on software BUSY polling - increases CPU load during firmware updates | Select only if existing firmware already implements polling-based write completion and no AAI acceleration is needed |
| W25Q20EWUXIE | 2-Mbit density, 133 MHz max clock, Quad SPI capable, but requires separate QSPI controller or software bit-banging for quad mode | Supports faster read throughput via Quad I/O, but adds PCB routing complexity and driver layer dependencies | Choose when system-level bandwidth demand exceeds 80 MHz SPI limits and QSPI controller resources are available |
Compared with AT25DF021A-SSH-T and W25Q20EWUXIE, the SST25VF020B-80-4C-QAE delivers deterministic AAI programming and hardware RY/BY# signaling within standard SPI-4 infrastructure - reducing firmware update latency and simplifying real-time system integration without requiring controller upgrades or new drivers.
Availability
SST25VF020B-80-4C-QAE is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration logging, automotive infotainment bootloader hosting, and smart energy meter firmware vault applications requiring stable component supply, long-lifecycle support, and guaranteed industrial temperature performance.
Supply support for SST25VF020B-80-4C-QAE 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, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design, manufacturing, and sales operations.
The SST25VF020B-80-4C-QAE belongs to Microchip's 25-series Serial Flash family, engineered specifically for cost-sensitive, space-constrained embedded systems requiring reliable nonvolatile storage with minimal pin count and low power consumption.
FAQ
What is the maximum clock frequency supported by SST25VF020B-80-4C-QAE for read operations?
The SST25VF020B-80-4C-QAE supports up to 80 MHz for High-Speed Read operations using the 0BH instruction with a dummy byte. Standard Read (03H) is rated to 33 MHz. This 80 MHz capability enables sub-12.5 ns per-byte access times, making SST25VF020B-80-4C-QAE suitable for fast boot sequences and real-time firmware loading in resource-constrained microcontrollers.
Does SST25VF020B-80-4C-QAE support both SPI Mode 0 and Mode 3?
Yes, SST25VF020B-80-4C-QAE explicitly supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as confirmed in DS20005054D Section 4.0. This dual-mode compatibility allows direct interfacing with a broad range of host processors - including Microchip PIC MCUs, STMicroelectronics STM32, and NXP Kinetis - without requiring clock polarity inversion logic or software workarounds.
How does the HOLD# pin function in SST25VF020B-80-4C-QAE?
In SST25VF020B-80-4C-QAE, the HOLD# pin suspends an active SPI transaction without resetting the internal address pointer or requiring CE# deassertion. When HOLD# is pulled low while CE# is active, SO enters high-impedance state and SI/SCK are ignored until HOLD# returns high - enabling deterministic interruption handling in interrupt-driven systems. This behavior is fully defined in DS20005054D Figure 4-2 and Section 4.1.
What erase granularities are supported by SST25VF020B-80-4C-QAE?
SST25VF020B-80-4C-QAE supports three independent erase granularities: uniform 4-Kbyte sectors, 32-Kbyte overlay blocks, and 64-Kbyte overlay blocks - each with dedicated opcodes (20H, 52H, D8H). This flexibility allows targeted erasure of configuration sections without disturbing firmware images, optimizing endurance and update efficiency. Sector erase time is 18 ms typical; chip erase takes 35 ms typical.
Is SST25VF020B-80-4C-QAE compatible with industrial temperature requirements?
Yes, SST25VF020B-80-4C-QAE is rated for the industrial temperature range of -40°C to +85°C, as indicated by the "I" suffix in its full ordering part number convention and verified in DS20005054D Section 1.0. It is RoHS-compliant and qualified per Microchip's industrial reliability standards, making SST25VF020B-80-4C-QAE appropriate for deployment in factory automation, outdoor metering, and transportation control systems.
SST25VF020B-80-4C-QAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-WDFN Exposed Pad
- 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
- Clock Frequency:
- 80 MHz
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON
SST25VF020B-80-4C-QAE FAQ
1.How can I place an order for SST25VF020B-80-4C-QAE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF020B-80-4C-QAE 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 SST25VF020B-80-4C-QAE reliable?
The price and inventory of SST25VF020B-80-4C-QAE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF020B-80-4C-QAE is usually 5 days.
3.What payment methods are accepted for SST25VF020B-80-4C-QAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF020B-80-4C-QAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF020B-80-4C-QAE?
SST25VF020B-80-4C-QAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF020B-80-4C-QAE 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 SST25VF020B-80-4C-QAE?
For technical support, including SST25VF020B-80-4C-QAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF020B-80-4C-QAE requirements.
6.How does Aetrix verify that SST25VF020B-80-4C-QAE is sourced from the original manufacturer or authorized distributors?
All SST25VF020B-80-4C-QAE 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 SST25VF020B-80-4C-QAE meets industry standards.
7.What is the process for return or replacement of SST25VF020B-80-4C-QAE?
All SST25VF020B-80-4C-QAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF020B-80-4C-QAE, 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 SST25VF020B-80-4C-QAE part is unused and in its original packaging.
Return procedure for SST25VF020B-80-4C-QAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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