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Microchip Technology SST25VF020B-80-4C-Q3AE-T
- Part No.:
- SST25VF020B-80-4C-Q3AE-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
SST25VF020B-80-4C-Q3AE-T.pdf
- Description:
- IC FLASH 2MBIT SPI 80MHZ 8USON
- Quantity:
- Payment:
- Shipping:
Inventory:2,096
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Product details
Overview
SST25VF020B-80-4C-Q3AE-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 storage in industrial controllers and IoT edge nodes.
For engineers reviewing the SST25VF020B-80-4C-Q3AE-T datasheet, SST25VF020B-80-4C-Q3AE-T pinout, SST25VF020B-80-4C-Q3AE-T application, or SST25VF020B-80-4C-Q3AE-T equivalent, key selection considerations include SPI Mode 0/3 compatibility, 4-Kbyte sector + 32/64-Kbyte block erase granularity, Auto Address Increment (AAI) programming efficiency, HOLD#/WP# hardware control, and commercial temperature range (0°C to +70°C) compliance.
Technical Context
The SST25VF020B-80-4C-Q3AE-T 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 SuperFlash® split-gate CMOS technology enables fast byte programming (7 µs typical) and chip erase (35 ms typical), while reducing total energy per operation versus conventional Flash.
It integrates dual software status registers: STATUS Register (with BUSY, WEL, BP0/BP1, BPL, AAI bits) and STATUS Register 1 (with TSP/BSP for top/bottom sector protection). Hardware end-of-write detection is supported via EBSY/DBSY commands that reconfigure SO as RY/BY# during AAI programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Mbit (262,144 bytes), organized as uniform 4-Kbyte sectors, 32-Kbyte blocks, and 64-Kbyte blocks |
| Supply Voltage | 2.7V–3.6V single supply - eliminates need for voltage translation in 3.3V systems |
| Max Clock Frequency | 80 MHz for High-Speed Read (0BH command + dummy byte) - enables fast code fetch in XIP applications |
| Endurance | 100,000 program/erase cycles - sufficient for firmware update logging and parameter storage in field-deployed devices |
| Data Retention | Greater than 100 years at +25°C - ensures long-term reliability without refresh in battery-free or low-power systems |
| Active Read Current | 10 mA typical at 80 MHz - balances speed and power for intermittent read-heavy workloads |
| Standby Current | 5 µA typical - minimizes quiescent power in sleep-mode microcontrollers and sensors |
Pinout & Package
Package: 8-Lead SOIC (150 mil), RoHS-compliant, commercial temperature grade (0°C to +70°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence - enables multi-device SPI bus sharing |
| SO | Serial Data Output | Outputs data on falling SCK edge; configurable as RY/BY# status pin during AAI programming via EBSY/DBSY |
| WP# | Write-Protect Input | Enables lock-down of Block Protection Lock (BPL) bit; when low, prevents modification of BP0/BP1/BPL and TSP/BSP bits |
| SI | Serial Data Input | Accepts commands, addresses, and data on rising SCK edge - supports standard SPI master interface |
| SCK | Serial Clock | Provides synchronous timing; sampling and output edges defined per SPI Mode 0/3 - ensures interoperability with diverse MCUs |
| HOLD# | Hold Control | Suspends ongoing SPI transaction without deselecting device - preserves internal state during interrupt-driven host operations |
| VDD | Power Supply | 2.7V–3.6V input - compatible with standard 3.3V LDOs and avoids level-shifting circuitry |
| VSS | Ground | Reference return path for all I/O and core logic - requires low-impedance PCB connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces total programming time by eliminating address retransmission for sequential word writes - critical for efficient firmware patching |
| Dual Status Registers | STATUS Register (BUSY/WEL/BP/BPL/AAI) + STATUS Register 1 (TSP/BSP) enable granular, independent protection of top/bottom memory regions |
| Hardware End-of-Write Detection | EBSY/DBSY commands repurpose SO as RY/BY# pin during AAI - removes polling overhead and simplifies real-time host scheduling |
| Flexible Erase Architecture | Uniform 4-Kbyte sectors + 32/64-Kbyte overlay blocks allow optimal partitioning for bootloader, app code, and configuration data |
| Low-Power Standby Mode | 5 µA typical current draw - extends battery life in portable medical monitors and wireless sensor nodes |
Applications
| Industrial PLC Firmware Storage | IoT Edge Device Configuration |
|---|---|
Use Scenario: Storing and updating ladder logic firmware in programmable logic controllers operating in factory environments with ambient temperatures up to +70°C. IC Role / Device Role / Timing Role: Non-volatile code storage with fast 80 MHz read access for XIP execution and robust 100,000-cycle endurance for over-the-air updates. Use Value: Eliminates external level shifters (2.7V–3.6V supply), reduces board space vs. parallel Flash, and ensures >100-year data retention without backup power. | Use Scenario: Holding calibrated sensor offsets, network credentials, and device-specific parameters in battery-powered environmental sensors deployed for multi-year field monitoring. IC Role / Device Role / Timing Role: Low-power configuration memory with 5 µA standby current and hardware write protection (WP# + BPL) to prevent accidental corruption during brown-out events. Use Value: Enables secure, field-upgradable settings storage with sector-level locking - preventing overwrite of critical calibration data during firmware updates. |
| Consumer Electronics Bootloader | Medical Diagnostic Instrument Code |
Use Scenario: Hosting primary bootloader code in smart home hubs requiring fast cold-boot response and immunity to power interruption during firmware upgrades. IC Role / Device Role / Timing Role: SPI-connected boot memory supporting High-Speed Read (0BH) at 80 MHz and AAI programming for rapid recovery image loading. Use Value: Achieves sub-100ms boot time via high-speed read, while HOLD# pin allows safe interruption of SPI transfers during system reset sequences. | Use Scenario: Storing FDA-cleared diagnostic algorithms and calibration tables in portable ultrasound units where data integrity and long-term reliability are mandated. IC Role / Device Role / Timing Role: Certified non-volatile storage with >100-year data retention, 100,000-cycle endurance, and dual-status register protection for audit-trail-critical firmware sections. Use Value: Meets IEC 62304 Class C software requirements through deterministic erase/write timing (35 ms chip erase) and hardware-enforced write lockdown (WP# + BPL). |
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 |
|---|---|---|---|
| AT25DF021-SSH-T | 2-Mbit density, 85 MHz max clock, 100,000 cycles, but uses different status register layout and lacks AAI programming | Requires modified driver for status polling and no hardware RY/BY# support on SO pin | Choose if higher clock speed is prioritized and AAI is not required; verify software compatibility with STATUS register mapping |
| W25Q20EWUXIE | 2-Mbit density, 133 MHz max clock, Quad SPI support, but requires 1.65V–1.95V or 2.7V–3.6V dual supply options | Enables faster throughput via Quad I/O mode but adds complexity in pin routing and initialization sequence | Choose if Quad SPI bandwidth is needed and board layout accommodates extra I/O lines; not drop-in compatible due to pinout and command set differences |
Compared with AT25DF021-SSH-T and W25Q20EWUXIE, the SST25VF020B-80-4C-Q3AE-T offers unique AAI programming and hardware RY/BY# signaling on SO - reducing host CPU load in update-intensive applications - while maintaining full SPI Mode 0/3 interoperability and simpler driver integration than Quad-capable alternatives.
Availability
SST25VF020B-80-4C-Q3AE-T is available at Aetrix Electronics and suitable for industrial PLC firmware storage, IoT edge device configuration, consumer electronics bootloaders, and medical diagnostic instrument code requiring stable component supply and long-lifecycle support.
Supply support for SST25VF020B-80-4C-Q3AE-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 components, and memory solutions, with a focus on embedded control and connectivity.
The SST25VF020B-80-4C-Q3AE-T belongs to Microchip's 25-series Serial Flash family, engineered for cost-sensitive, space-constrained embedded systems needing reliable, low-power, high-speed SPI-based non-volatile storage.
FAQ
What is the maximum clock frequency supported by the SST25VF020B-80-4C-Q3AE-T for read operations?
The SST25VF020B-80-4C-Q3AE-T supports up to 80 MHz for High-Speed Read operations using the 0BH command with a dummy byte. Standard Read (03H) is rated up to 33 MHz. This 80 MHz capability enables fast code execution in XIP configurations and reduces boot latency in microcontroller-based systems using the SST25VF020B-80-4C-Q3AE-T.
Does the SST25VF020B-80-4C-Q3AE-T support both SPI Mode 0 and Mode 3?
Yes, the SST25VF020B-80-4C-Q3AE-T 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, ensuring seamless integration with a wide range of microcontrollers and FPGAs without requiring protocol translation. This dual-mode support is explicitly confirmed in the SST25VF020B-80-4C-Q3AE-T datasheet Section 4.0.
How does the HOLD# pin function on the SST25VF020B-80-4C-Q3AE-T?
The HOLD# pin on the SST25VF020B-80-4C-Q3AE-T suspends an active SPI transaction without deselecting the device or resetting internal state. When asserted low while CE# is active, it places SO in high-impedance and pauses clock synchronization - allowing the host MCU to service interrupts or perform other tasks. Communication resumes upon de-asserting HOLD# while CE# remains low. This behavior is documented in SST25VF020B-80-4C-Q3AE-T datasheet Figure 4-2 and Section 4.1.
What erase granularities are available on the SST25VF020B-80-4C-Q3AE-T?
The SST25VF020B-80-4C-Q3AE-T supports three erase granularities: uniform 4-Kbyte sectors (20H command), uniform 32-Kbyte overlay blocks (52H command), and uniform 64-Kbyte overlay blocks (D8H command). These options allow precise allocation of memory regions for bootloader, application code, and configuration data - minimizing erase time and wear in targeted updates. All erase operations are hardware self-timed and report completion via the BUSY bit in the SST25VF020B-80-4C-Q3AE-T STATUS register.
Is the SST25VF020B-80-4C-Q3AE-T RoHS compliant and what temperature range does it support?
Yes, the SST25VF020B-80-4C-Q3AE-T is RoHS compliant and specified for commercial temperature operation from 0°C to +70°C. This rating is indicated by the "C" suffix in the part number and confirmed in the "Temperature Ranges" section of the official Microchip datasheet DS20005054D. The device is packaged in an 8-Lead SOIC (150 mil) and meets lead-free soldering requirements per JEDEC J-STD-020.
SST25VF020B-80-4C-Q3AE-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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-T FAQ
1.How can I place an order for SST25VF020B-80-4C-Q3AE-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF020B-80-4C-Q3AE-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-Q3AE-T reliable?
The price and inventory of SST25VF020B-80-4C-Q3AE-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-Q3AE-T is usually 5 days.
3.What payment methods are accepted for SST25VF020B-80-4C-Q3AE-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF020B-80-4C-Q3AE-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF020B-80-4C-Q3AE-T?
SST25VF020B-80-4C-Q3AE-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF020B-80-4C-Q3AE-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-Q3AE-T?
For technical support, including SST25VF020B-80-4C-Q3AE-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-Q3AE-T requirements.
6.How does Aetrix verify that SST25VF020B-80-4C-Q3AE-T is sourced from the original manufacturer or authorized distributors?
All SST25VF020B-80-4C-Q3AE-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-Q3AE-T meets industry standards.
7.What is the process for return or replacement of SST25VF020B-80-4C-Q3AE-T?
All SST25VF020B-80-4C-Q3AE-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF020B-80-4C-Q3AE-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-Q3AE-T part is unused and in its original packaging.
Return procedure for SST25VF020B-80-4C-Q3AE-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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