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Microchip Technology SST25VF020B-80-4C-Q3AE
- Part No.:
- SST25VF020B-80-4C-Q3AE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
SST25VF020B-80-4C-Q3AE.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8USON
- Quantity:
- Payment:
- Shipping:
Inventory:4,287
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Product details
Overview
SST25VF020B-80-4C-Q3AE 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, and uniform 4-Kbyte/32-Kbyte/64-Kbyte erase granularity - used for firmware storage in embedded microcontroller systems requiring fast, reliable nonvolatile code execution.
For engineers reviewing the SST25VF020B-80-4C-Q3AE datasheet, SST25VF020B-80-4C-Q3AE pinout, SST25VF020B-80-4C-Q3AE application, or SST25VF020B-80-4C-Q3AE equivalent, key selection considerations include SPI Mode 0/3 compatibility, industrial temperature range (–40°C to +85°C), software/hardware write protection, Auto Address Increment (AAI) programming efficiency, and RoHS-compliant 8-lead SOIC packaging.
Technical Context
The SST25VF020B-80-4C-Q3AE implements a four-wire SPI interface with CE#, SCK, SI, and SO lines, supporting both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) timing. Its internal architecture includes a split-gate SuperFlash® memory cell with thick-oxide tunneling injector, enabling superior endurance and data retention.
It features dual end-of-write detection: software polling of the BUSY bit in the STATUS register and hardware RY/BY# status output on SO during AAI programming (enabled via EBSY command). The device integrates two software-configurable STATUS registers - one for block protection (BP1/BP0/BPL) and another for top/bottom sector lock (TSP/BSP) - with WP# and HOLD# pins enabling hardware-level suspend and write-lock control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as uniform 4-Kbyte sectors, 32-Kbyte and 64-Kbyte overlay blocks |
| Supply Voltage | 2.7V–3.6V single supply - enables direct interfacing with 3.3V logic without level shifting |
| Max Clock Frequency | 80 MHz for High-Speed Read (0BH instruction) - reduces firmware fetch latency in real-time systems |
| Endurance | 100,000 program/erase cycles per sector - supports field-upgradable firmware with frequent reprogramming |
| Data Retention | Greater than 100 years at +25°C - ensures long-term reliability in unattended industrial deployments |
| Active Read Current | 10 mA typical at 80 MHz - balances speed and power in battery-backed or energy-constrained applications |
| Standby Current | 5 µA typical - minimizes quiescent power during system sleep modes |
| Operating Temperature | –40°C to +85°C (Industrial grade) - qualified for automotive body electronics and industrial PLCs |
Pinout & Package
Package: 8-Lead SOIC (150 mil), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low chip select; must remain low throughout command sequence - enables multi-device SPI bus sharing |
| SO | Serial Data Output | Tri-state output; drives data on falling SCK edge; reconfigurable as RY/BY# during AAI mode for hardware busy signaling |
| WP# | Write Protect | Hardware lock-down control for STATUS register BPL bit - prevents accidental modification of block protection settings |
| VSS | Ground | Reference return path for all I/O and core circuitry - requires low-impedance PCB grounding |
| VDD | Power Supply | 2.7V–3.6V supply input - decoupling capacitor (0.1 µF) required near pin for noise immunity |
| HOLD# | Hold Control | Pauses ongoing SPI transaction without deselecting device - preserves address pointer and state across host interrupts |
| SCK | Serial Clock | Master-generated clock; rising edge latches SI, falling edge clocks SO - defines timing for all SPI operations |
| SI | Serial Data Input | Command/address/data input; sampled on rising SCK edge - supports daisy-chained or isolated SPI topology |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide tunneling injector delivers 100K-cycle endurance and >100-year retention - outperforms conventional NOR Flash in reliability-critical firmware storage |
| Auto Address Increment (AAI) | Reduces total programming time by eliminating address retransmission between sequential word writes - accelerates full-image updates in bootloaders |
| Dual End-of-Write Detection | Software (BUSY bit polling) and hardware (SO-as-RY/BY#) methods - gives designers flexibility to optimize CPU utilization vs. interrupt latency |
| Flexible Block Protection | BP1/BP0 bits configure 0–100% memory protection; TSP/BSP bits independently lock top/bottom sectors - enables secure bootloader + application partitioning |
| Industrial Temperature Range | –40°C to +85°C operation - validated for use in motor drives, HVAC controllers, and outdoor IoT gateways without derating |
| RoHS-Compliant Packaging | 8-lead SOIC (150 mil) with lead-free finish - meets global environmental compliance and simplifies PCB assembly |
Applications
| Secure Bootloader Storage | Firmware Over-the-Air (OTA) Update Buffer |
|---|---|
Use Scenario: Storing immutable bootloader code that validates digital signatures before loading application firmware. IC Role / Device Role / Timing Role: Nonvolatile code storage with hardware write-protection (WP# + BPL) and sector-level lockdown (TSP/BSP) to prevent corruption. Use Value: Prevents unauthorized firmware execution by enforcing cryptographic integrity checks and protecting critical startup vectors. | Use Scenario: Holding downloaded firmware images prior to validation and atomic swap into active memory space. IC Role / Device Role / Timing Role: High-speed, high-endurance buffer for temporary image storage - leverages 80 MHz read and AAI programming for rapid staging. Use Value: Enables zero-downtime updates by decoupling download, verify, and commit phases - supported by 100K-cycle endurance. |
| Industrial HMI Configuration Memory | Automotive Body Control Module (BCM) Parameter Storage |
Use Scenario: Retaining user-defined display themes, language settings, and calibration offsets across power cycles. IC Role / Device Role / Timing Role: Low-power, long-retention parameter store - uses 5 µA standby current and >100-year data retention. Use Value: Eliminates supercapacitor or battery backup while guaranteeing configuration persistence over product lifetime. | Use Scenario: Storing vehicle-specific configuration data (e.g., door lock behavior, mirror fold settings) tied to VIN. IC Role / Device Role / Timing Role: Automotive-grade nonvolatile memory operating at –40°C to +85°C - qualified per AEC-Q100 stress requirements. Use Value: Ensures consistent feature behavior across temperature extremes and 15+ year vehicle service life. |
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, 85 MHz max read, 2.7–3.6V, but uses different STATUS register layout and lacks AAI programming | No hardware-accelerated sequential programming - increases OTA update time in resource-constrained hosts | Choose when legacy Atmel toolchain support is required and AAI is not needed |
| W25Q20EWUXIE | 2 Mbit, 104 MHz read, 1.65–3.6V, supports Quad SPI and DTR mode - wider voltage range and faster interface | Requires Quad-capable controller and updated driver stack - not drop-in compatible with standard SPI-only hosts | Choose for next-gen designs needing higher bandwidth or ultra-low-voltage operation |
Compared with AT25DF021A-SSH-T and W25Q20EWUXIE, the SST25VF020B-80-4C-Q3AE offers unique AAI programming and industrial-grade HOLD#/WP# pin functionality ideal for deterministic embedded boot and update workflows - without requiring Quad SPI hardware or sacrificing voltage margin.
Availability
SST25VF020B-80-4C-Q3AE is available at Aetrix Electronics and suitable for industrial control systems, automotive body electronics, and IoT edge devices requiring stable component supply, long-lifecycle assurance, and RoHS-compliant manufacturing.
Supply support for SST25VF020B-80-4C-Q3AE 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 microcontrollers, analog components, and Flash memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing infrastructure.
The SST25VF020B-80-4C-Q3AE belongs to Microchip's 25-series Serial Flash family, engineered specifically for cost-sensitive, space-constrained embedded systems needing robust, high-speed nonvolatile storage with industrial temperature resilience and simplified SPI integration.
FAQ
What is the maximum clock frequency supported by SST25VF020B-80-4C-Q3AE for read operations?
The SST25VF020B-80-4C-Q3AE 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 reduces instruction fetch latency in real-time microcontroller applications and is enabled by Microchip's SuperFlash® process optimization and low-capacitance SOIC package routing.
Does SST25VF020B-80-4C-Q3AE support both SPI Mode 0 and Mode 3?
Yes, SST25VF020B-80-4C-Q3AE is fully compatible with SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). The device samples SI on the rising edge of SCK and drives SO on the falling edge in both modes. This dual-mode support allows seamless integration with diverse host controllers - including legacy 8-bit MCUs and modern ARM-based SoCs - without requiring hardware redesign.
How does the HOLD# pin function in SST25VF020B-80-4C-Q3AE during an active SPI transaction?
The HOLD# pin in SST25VF020B-80-4C-Q3AE suspends an ongoing SPI sequence without resetting the internal address pointer or command state. When HOLD# is asserted low while CE# is active, SO enters high-impedance and communication pauses; resuming requires de-asserting HOLD# while CE# remains low. This enables deterministic interruption handling in multitasking RTOS environments and avoids reinitialization overhead during host context switches.
What write protection mechanisms are implemented in SST25VF020B-80-4C-Q3AE?
SST25VF020B-80-4C-Q3AE implements three-tiered write protection: (1) hardware via WP# pin enabling BPL lock-down of STATUS register bits, (2) software via BP1/BP0 bits defining protected memory regions (0–100%), and (3) independent top/bottom sector locks (TSP/BSP) in STATUS Register 1. These layers allow secure bootloader partitioning, field-upgrade isolation, and factory calibration locking - all configurable without external components.
Is SST25VF020B-80-4C-Q3AE suitable for automotive applications?
Yes, SST25VF020B-80-4C-Q3AE is rated for the industrial temperature range (–40°C to +85°C) and is RoHS-compliant, making it suitable for under-hood and cabin automotive applications such as body control modules, lighting controllers, and infotainment subsystems. While not AEC-Q100 certified as a standalone part, its qualification profile aligns with Tier-2 automotive requirements when used within properly designed systems meeting ISO 16750 environmental stress limits.
SST25VF020B-80-4C-Q3AE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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-USON (3x2)
SST25VF020B-80-4C-Q3AE FAQ
1.How can I place an order for SST25VF020B-80-4C-Q3AE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF020B-80-4C-Q3AE 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-Q3AE reliable?
The price and inventory of SST25VF020B-80-4C-Q3AE 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-Q3AE is usually 5 days.
3.What payment methods are accepted for SST25VF020B-80-4C-Q3AE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF020B-80-4C-Q3AE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF020B-80-4C-Q3AE?
SST25VF020B-80-4C-Q3AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF020B-80-4C-Q3AE 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-Q3AE?
For technical support, including SST25VF020B-80-4C-Q3AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF020B-80-4C-Q3AE requirements.
6.How does Aetrix verify that SST25VF020B-80-4C-Q3AE is sourced from the original manufacturer or authorized distributors?
All SST25VF020B-80-4C-Q3AE 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-Q3AE meets industry standards.
7.What is the process for return or replacement of SST25VF020B-80-4C-Q3AE?
All SST25VF020B-80-4C-Q3AE units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF020B-80-4C-Q3AE, 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-Q3AE part is unused and in its original packaging.
Return procedure for SST25VF020B-80-4C-Q3AE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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