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Microchip Technology SST25VF020B-80-4C-SAE-T
- Part No.:
- SST25VF020B-80-4C-SAE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SST25VF020B-80-4C-SAE-T.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,522
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Product details
Overview
SST25VF020B-80-4C-SAE-T from Microchip Technology is a 2-Mbit SPI serial Flash memory IC designed for embedded firmware storage and code execution in resource-constrained systems. It operates from a single 2.7V–3.6V supply, supports up to 80 MHz high-speed read, delivers 100,000 program/erase cycles, and retains data for >100 years - enabling reliable boot code and parameter storage in industrial controllers and IoT edge nodes.
For engineers reviewing the SST25VF020B-80-4C-SAE-T datasheet, SST25VF020B-80-4C-SAE-T pinout, SST25VF020B-80-4C-SAE-T application, or SST25VF020B-80-4C-SAE-T equivalent, key selection considerations include its 80 MHz read speed, 4-Kbyte sector/32-Kbyte & 64-Kbyte block erase granularity, Auto Address Increment (AAI) programming mode, HOLD#/WP# hardware control pins, and industrial temperature range (–40°C to +85°C).
Technical Context
The SST25VF020B-80-4C-SAE-T implements a four-wire SPI interface compliant with Mode 0 and Mode 3 timing, using CE#, SCK, SI, and SO signals for command, address, and data transfer. Its SuperFlash® split-gate CMOS technology enables faster erase (18 ms sector, 35 ms chip) and lower active current (10 mA typical) versus conventional NOR Flash.
It integrates dual software status registers: STATUS register (with BUSY, WEL, BP0/BP1, BPL bits) and STATUS register 1 (with TSP/BSP for top/bottom sector protection), supporting fine-grained, lockable write protection without external hardware. The HOLD# pin suspends ongoing SPI sequences while maintaining internal state, and WP# enables hardware lock-down of protection bits.
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 |
| Read Speed | Up to 80 MHz via High-Speed Read (0BH) instruction with dummy cycle; supports wrap-around addressing |
| Erase Performance | Sector Erase: 18 ms typical; Chip Erase: 35 ms typical; no partial-block restrictions |
| Programming Method | Byte Program (7 µs typical) and Auto Address Increment (AAI) Word Program for sequential multi-byte writes |
| Endurance & Retention | 100,000 program/erase cycles; >100 years data retention at +25°C |
| Supply Voltage | 2.7V–3.6V single supply; active read current 10 mA (typ), standby current 5 µA (typ) |
| Temperature Range | Industrial grade: –40°C to +85°C, RoHS-compliant |
Pinout & Package
Package: 8-Lead SOIC (150 mil), also available in 8-contact USON (3 mm × 2 mm) and WSON (6 mm × 5 mm); this variant SST25VF020B-80-4C-SAE-T uses the SOIC package.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low during full command sequence; high-to-low transition initiates operation |
| SO | Serial Data Output | Outputs read data on falling SCK edge; reconfigurable as RY/BY# busy indicator during AAI mode when EBSY issued |
| WP# | Write Protect | Hardware enable/disable for STATUS register lock-down (BPL bit); low = BPL functional, high = BPL disabled |
| VSS | Ground | Reference ground for all I/O and core logic; decoupling capacitor required near pin |
| VDD | Power Supply | 2.7V–3.6V supply input; must be stable during all operations including erase/program |
| HOLD# | Hold Control | Pauses SPI communication without resetting clock or address pointer; requires CE# low and synchronized SCK edge |
| SCK | Serial Clock | Timing reference for SI/SO; rising edge latches input, falling edge shifts out output; supports Mode 0 (idle low) and Mode 3 (idle high) |
| SI | Serial Data Input | Accepts opcodes, addresses, and data MSb-first on rising SCK edge; high-impedance when CE# high |
Key Features
| Feature | Design Value |
|---|---|
| SuperFlash® Technology | Split-gate cell architecture reduces program/erase time and total energy consumption vs. standard NOR Flash |
| Flexible Erase Granularity | Independent 4-Kbyte sector, 32-Kbyte block, and 64-Kbyte block erase - enables efficient firmware patching and log management |
| Auto Address Increment (AAI) | Eliminates repeated address transmission during sequential word programming, cutting host CPU overhead and total write time |
| Dual Status Registers | STATUS register controls BP0/BP1/BPL; STATUS register 1 adds independent top/bottom sector lock (TSP/BSP) - enabling secure bootloader + application partitioning |
| HOLD# and WP# Hardware Pins | Allow real-time SPI transaction suspension and hardware-enforced write lock-down - critical for fail-safe field updates |
Applications
| Boot Code Storage | Firmware Over-the-Air (FOTA) |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image in microcontroller-based industrial PLCs where power loss during update must not corrupt boot integrity. IC Role / Device Role / Timing Role: Non-volatile code storage with fast 80 MHz read access and hardware write protection (WP#/BPL) to prevent accidental overwrite during reset sequences. Use Value: Ensures deterministic boot recovery after brown-out; 100,000-cycle endurance supports frequent firmware validation cycles in production test. | Use Scenario: Hosting field-upgradable application firmware in battery-powered smart meters, where wireless update windows are short and energy budget is constrained. IC Role / Device Role / Timing Role: Dual-sector protected storage: bottom sector holds validated firmware, top sector receives new image; TSP/BSP bits enforce atomic swap. Use Value: Enables safe A/B firmware partitioning with hardware-enforced isolation - eliminates risk of bricking due to interrupted OTA writes. |
| Configuration Parameter Storage | Real-Time OS Kernel Image |
Use Scenario: Persisting calibration data, network credentials, and user settings in medical diagnostic equipment requiring regulatory traceability and long-term data retention. IC Role / Device Role / Timing Role: Low-power non-volatile storage with 5 µA standby current and >100-year retention; sector-locked to prevent runtime corruption. Use Value: Meets IEC 62304 data persistence requirements; 4-Kbyte sector erase allows granular updates without disturbing adjacent configuration banks. | Use Scenario: Executing RTOS kernel code directly from Flash (XIP) in automotive body control modules with strict ASIL-B timing constraints. IC Role / Device Role / Timing Role: High-speed 80 MHz read interface with wrap-around addressing and zero wait-state access for deterministic interrupt latency. Use Value: Reduces external RAM footprint and boot time; uniform 4-Kbyte sectors align with MMU page tables for secure memory mapping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI serial Flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q20EW | 2 Mbit density, 104 MHz max read, Quad SPI support, 1.65V–1.95V/2.7V–3.6V dual supply | Supports QSPI x4 mode for higher bandwidth; lacks HOLD# pin and AAI programming | Choose for systems needing faster read throughput or QSPI interface compatibility; not drop-in due to pinout and command set differences. |
| Macronix MX25L2006E | 2 Mbit density, 80 MHz max read, standard SPI only, 2.7V–3.6V supply, 100K endurance | Identical pinout (SOIC-8), same command set (including AAI), but no STATUS register 1 or TSP/BSP bits | Choose for direct replacement where top/bottom sector protection is not required; verified pin-compatible and functionally aligned for basic boot storage. |
Compared with SST25VF020B-80-4C-SAE-T, the W25Q20EW offers higher read bandwidth but requires PCB redesign and firmware adaptation for QSPI, while the MX25L2006E provides mechanical and electrical drop-in capability at the cost of reduced security features for sector-level firmware partitioning.
Availability
SST25VF020B-80-4C-SAE-T is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, and automotive body electronics requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for SST25VF020B-80-4C-SAE-T 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 reliability, longevity, and embedded system integration.
The SST25VF020B-80-4C-SAE-T belongs to Microchip's 25-series Serial Flash product line, engineered for cost-sensitive, space-constrained embedded applications demanding high endurance, low power, and robust SPI interface compliance across extended temperature ranges.
FAQ
What is the maximum clock frequency supported by the SST25VF020B-80-4C-SAE-T during read operations?
The SST25VF020B-80-4C-SAE-T supports up to 80 MHz during High-Speed Read operations using the 0BH opcode with a dummy cycle. Standard Read (03H) is rated to 33 MHz. This 80 MHz capability enables low-latency XIP (execute-in-place) execution in real-time embedded systems without external cache.
Does the SST25VF020B-80-4C-SAE-T support hardware write protection beyond software status bits?
Yes, the SST25VF020B-80-4C-SAE-T includes two dedicated hardware control pins: WP# enables lock-down of the Block Protection Lock (BPL) bit in the STATUS register, and HOLD# suspends ongoing SPI transactions without resetting internal state. These pins provide deterministic, glitch-immune protection independent of firmware execution.
How does Auto Address Increment (AAI) programming improve efficiency in the SST25VF020B-80-4C-SAE-T compared to standard Byte Program mode?
AAI programming in the SST25VF020B-80-4C-SAE-T eliminates the need to resend the address for each subsequent word, reducing host CPU overhead and total programming time. After issuing ADH + address + first word, each additional ADH + next word auto-increments the address - enabling efficient firmware image loading with minimal SPI bus occupancy.
What erase options are available on the SST25VF020B-80-4C-SAE-T, and how do they map to memory layout?
The SST25VF020B-80-4C-SAE-T supports three erase granularities: 4-Kbyte sector erase (20H), 32-Kbyte block erase (52H), and 64-Kbyte block erase (D8H). The full 2-Mbit array is divided into thirty-two 4-Kbyte sectors; eight 32-Kbyte blocks; and four 64-Kbyte blocks - allowing precise wear leveling and incremental firmware updates.
Is the SST25VF020B-80-4C-SAE-T compatible with both SPI Mode 0 and Mode 3, and how does that affect system integration?
Yes, the SST25VF020B-80-4C-SAE-T is fully compatible with SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). This dual-mode support simplifies integration with diverse host processors - such as ARM Cortex-M MCUs (often Mode 0) and certain DSPs or FPGAs (often Mode 3) - without requiring level-shifting or protocol translation.
SST25VF020B-80-4C-SAE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for SST25VF020B-80-4C-SAE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF020B-80-4C-SAE-T 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-T reliable?
The price and inventory of SST25VF020B-80-4C-SAE-T 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-T is usually 5 days.
3.What payment methods are accepted for SST25VF020B-80-4C-SAE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF020B-80-4C-SAE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF020B-80-4C-SAE-T?
SST25VF020B-80-4C-SAE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF020B-80-4C-SAE-T 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-T?
For technical support, including SST25VF020B-80-4C-SAE-T 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-T requirements.
6.How does Aetrix verify that SST25VF020B-80-4C-SAE-T is sourced from the original manufacturer or authorized distributors?
All SST25VF020B-80-4C-SAE-T 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-T meets industry standards.
7.What is the process for return or replacement of SST25VF020B-80-4C-SAE-T?
All SST25VF020B-80-4C-SAE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF020B-80-4C-SAE-T, 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-T part is unused and in its original packaging.
Return procedure for SST25VF020B-80-4C-SAE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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