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Microchip Technology SST25VF020B-80-4C-SAE
- Part No.:
- SST25VF020B-80-4C-SAE
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25VF020B-80-4C-SAE.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,004
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Product details
Overview
SST25VF020B-80-4C-SAE from Microchip Technology is a 2-Mbit SPI serial Flash memory IC with SuperFlash® technology, supporting 2.7V–3.6V single-supply operation, up to 80 MHz high-speed read (via 0BH command), and flexible 4-Kbyte/32-Kbyte/64-Kbyte erase granularity - deployed in embedded firmware storage for microcontroller boot code and configuration data.
For engineers reviewing the SST25VF020B-80-4C-SAE datasheet, SST25VF020B-80-4C-SAE pinout, SST25VF020B-80-4C-SAE application, or SST25VF020B-80-4C-SAE equivalent, key selection criteria include SPI Mode 0/3 compatibility, industrial temperature range (−40°C to +85°C), hardware/software write protection, Auto Address Increment (AAI) programming efficiency, and RoHS-compliant 8-lead SOIC packaging.
Technical Context
The SST25VF020B-80-4C-SAE 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. It uses a split-gate SuperFlash® cell architecture enabling 100,000 program/erase cycles and >100 years data retention.
Internal control logic includes dual software STATUS registers (RDSR/RDSR1), BUSY bit polling, and RY/BY# status output on SO during AAI programming when enabled via EBSY (70H). Write protection is enforced via WP# pin control of BPL bit and BP1/BP0 sector lock bits, plus independent TSP/BSP top/bottom sector flags.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as uniform 4-Kbyte sectors |
| Supply Voltage | 2.7V–3.6V - enables direct interfacing with 3.3V microcontrollers without level shifting |
| Max Clock Frequency | 80 MHz - achieved using High-Speed Read (0BH) instruction with dummy cycle |
| Endurance | 100,000 program/erase cycles - supports frequent firmware updates in field-deployed devices |
| Data Retention | Greater than 100 years - ensures long-term reliability in unpowered storage applications |
| Active Read Current | 10 mA (typical) - low power draw during active firmware fetch operations |
| Standby Current | 5 µA (typical) - minimizes quiescent power in battery-backed or energy-sensitive systems |
| Erase Time (Sector) | 18 ms (typical) - enables rapid partial reprogramming without full chip erase overhead |
Pinout & Package
Package: 8-Lead SOIC (150 mil), 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 to prevent premature termination |
| SO | Serial Data Output | Outputs data on falling SCK edge; reconfigurable as RY/BY# status indicator during AAI mode when EBSY issued |
| WP# | Write-Protect Input | Enables BPL lock-down of STATUS register; disables WRSR execution when low and BPL=1 |
| VSS | Ground | Reference return path for all digital and analog circuitry; requires low-impedance PCB connection |
| VDD | Power Supply | 2.7V–3.6V supply input; decoupling capacitor (0.1 µF) recommended near pin |
| HOLD# | Serial Interface Hold | Suspends ongoing SPI transaction without deselecting device; requires CE# low and synchronized SCK edge |
| SCK | Serial Clock | Provides timing reference; SI sampled on rising edge, SO driven on falling edge |
| SI | Serial Data Input | Accepts commands, addresses, and data MSb-first; latched on rising SCK edge |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell with thick-oxide tunneling injector delivers lower program current and faster erase vs. conventional Flash |
| Auto Address Increment (AAI) | Reduces total programming time by eliminating address retransmission between sequential word writes |
| Dual STATUS Registers | STATUS register (RDSR) provides BUSY/WEL/BP status; STATUS register 1 (RDSR1) adds independent TSP/BSP sector locks |
| Hardware End-of-Write Detection | EBSY (70H) command configures SO pin as real-time RY/BY# indicator during AAI, removing software polling overhead |
| Flexible Erase Granularity | Supports 4-Kbyte sector, 32-Kbyte block, and 64-Kbyte block erase - enables precise firmware partition management |
| Software Write Protection | BP1/BP0 bits define protected memory regions; TSP/BSP allow independent top/bottom sector locking |
Applications
| Firmware Boot Storage | Configuration Data Logging |
|---|---|
Use Scenario: Stores boot loader and application firmware for ARM Cortex-M or PIC32 microcontrollers in industrial controllers. IC Role / Device Role / Timing Role: Non-volatile code storage accessed via SPI during cold start; supports 80 MHz high-speed read for fast boot times. Use Value: Enables sub-100 ms firmware load with minimal CPU intervention and no external voltage translation. | Use Scenario: Logs sensor calibration parameters and runtime settings in smart meters and HVAC controllers. IC Role / Device Role / Timing Role: Parameter archive with sector-level erase isolation - preserves valid data while updating specific fields. Use Value: 4-Kbyte sector erase allows overwriting only changed configuration blocks, extending endurance beyond 100k cycles. |
| Firmware Field Updates | Secure Key Storage |
Use Scenario: Hosts downloadable firmware patches in networked IoT gateways requiring remote OTA updates. IC Role / Device Role / Timing Role: Dual-bank update buffer using AAI programming and hardware RY/BY# status for deterministic timing. Use Value: AAI reduces patch programming time by >40% vs. byte-by-byte writes; EBSY eliminates BUSY polling latency. | Use Scenario: Stores cryptographic keys and secure boot certificates in medical diagnostic equipment. IC Role / Device Role / Timing Role: Hardware-locked memory region via WP#-enabled BPL and BP1/BP0 bits preventing accidental overwrite. Use Value: Write-protection lock-down ensures keys remain immutable after initial provisioning, meeting IEC 62304 safety requirements. |
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 clock, 2.7–3.6 V, but uses different STATUS register layout and lacks AAI programming | No Auto Address Increment support - increases firmware update time; different WP#/HOLD# timing specs | Choose when maximum read speed is critical and AAI is unused; verify timing compliance with host controller |
| W25Q20EWUXIE | 2 Mbit, 133 MHz max clock, 1.65–3.6 V, Quad SPI capable, but requires QPI enable sequence and different protection model | Supports Quad I/O for higher throughput, but adds initialization complexity and lacks HOLD#/WP# pin-level compatibility | Choose when bandwidth >80 MB/s is required and host supports QPI; not drop-in for legacy SST25VF020B-80-4C-SAE designs |
Compared with AT25DF021A-SSH-T and W25Q20EWUXIE, the SST25VF020B-80-4C-SAE offers unique AAI programming acceleration and dual-status register flexibility for fine-grained sector protection - making it optimal for resource-constrained MCUs needing deterministic, low-overhead firmware updates without protocol extension.
Availability
SST25VF020B-80-4C-SAE is available at Aetrix Electronics and suitable for industrial automation controllers, medical device firmware storage, and automotive telematics modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for SST25VF020B-80-4C-SAE 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 non-volatile memory solutions with emphasis on industrial and automotive reliability.
The SST25VF020B-80-4C-SAE belongs to Microchip's 25-series Serial Flash product line, designed specifically for cost-sensitive, space-constrained embedded systems requiring robust, low-power, SPI-compatible code and data storage.
FAQ
What is the operating temperature range for SST25VF020B-80-4C-SAE?
The SST25VF020B-80-4C-SAE is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the official Microchip datasheet DS20005054D, page 1, under "Temperature Ranges" - denoted by the "I" suffix in the part number and validated for use in programmable logic controllers, motor drives, and outdoor telemetry equipment.
Does SST25VF020B-80-4C-SAE support both SPI Mode 0 and Mode 3?
Yes, SST25VF020B-80-4C-SAE supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as explicitly stated in the "Features" section of DS20005054D. The device samples SI on the rising edge and drives SO on the falling edge of SCK in both modes, with only the idle SCK state differing - enabling interoperability with diverse host controllers including STM32, NXP Kinetis, and Renesas RA series.
How does the Auto Address Increment (AAI) feature work in SST25VF020B-80-4C-SAE?
The SST25VF020B-80-4C-SAE implements AAI via the ADH (1010 1101b) command, allowing sequential word programming without retransmitting addresses. After initial address and two data bytes, subsequent AAI commands auto-increment the address pointer. Completion is verified via BUSY bit polling or hardware RY/BY# on SO - reducing firmware update time by eliminating address overhead per word.
What write protection mechanisms are available on SST25VF020B-80-4C-SAE?
SST25VF020B-80-4C-SAE provides three-tiered write protection: (1) hardware via WP# pin controlling BPL lock-down, (2) software via BP1/BP0 bits defining protected memory regions (none to full array), and (3) independent top/bottom sector locks via TSP/BSP bits in STATUS register 1 - all documented in Tables 4-1 through 4-4 of DS20005054D.
Is SST25VF020B-80-4C-SAE RoHS compliant and what package does it use?
Yes, SST25VF020B-80-4C-SAE is RoHS compliant per datasheet footnote on page 1, and is supplied in an 8-Lead SOIC (150 mil) package - confirmed in the "Packages" section of DS20005054D. The "SAE" suffix denotes this specific SOIC industrial-grade variant with exposed pad not present; no lead-free exemptions apply.
SST25VF020B-80-4C-SAE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- 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-SOIC
SST25VF020B-80-4C-SAE FAQ
1.How can I place an order for SST25VF020B-80-4C-SAE through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF020B-80-4C-SAE 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-SAE reliable?
The price and inventory of SST25VF020B-80-4C-SAE 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-SAE is usually 5 days.
3.What payment methods are accepted for SST25VF020B-80-4C-SAE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF020B-80-4C-SAE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF020B-80-4C-SAE?
SST25VF020B-80-4C-SAE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF020B-80-4C-SAE 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-SAE?
For technical support, including SST25VF020B-80-4C-SAE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF020B-80-4C-SAE requirements.
6.How does Aetrix verify that SST25VF020B-80-4C-SAE is sourced from the original manufacturer or authorized distributors?
All SST25VF020B-80-4C-SAE 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-SAE meets industry standards.
7.What is the process for return or replacement of SST25VF020B-80-4C-SAE?
All SST25VF020B-80-4C-SAE units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF020B-80-4C-SAE, 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-SAE part is unused and in its original packaging.
Return procedure for SST25VF020B-80-4C-SAE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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