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Microchip Technology SST25VF016B-50-4I-S2AF
- Part No.:
- SST25VF016B-50-4I-S2AF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
SST25VF016B-50-4I-S2AF.pdf
- Description:
- IC FLASH 16MBIT SPI 50MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,901
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Product details
Overview
SST25VF016B-50-4I-S2AF from Microchip Technology is a 16 Mbit SPI serial flash memory IC with 2.7–3.6 V single-supply operation, 50 MHz max clock frequency, uniform 4 KByte sectors and 64 KByte overlay blocks, and industrial temperature range (–40°C to +85°C). It serves as nonvolatile program/data storage in microcontroller boot loaders, firmware update buffers, and embedded configuration memory.
For engineers reviewing the SST25VF016B-50-4I-S2AF datasheet, SST25VF016B-50-4I-S2AF pinout, SST25VF016B-50-4I-S2AF application, or SST25VF016B-50-4I-S2AF equivalent, key selection criteria include SPI Mode 0/3 compatibility, Auto Address Increment (AAI) programming support, hardware RY/BY# status via SO pin, sector/block erase granularity, and industrial-grade reliability with 100,000 write cycles and >100-year data retention.
Technical Context
The SST25VF016B-50-4I-S2AF implements a four-wire SPI interface (SCK, SI, SO, CE#) with dual-mode clock polarity support (Mode 0 and Mode 3), enabling interoperability with diverse host controllers. Its SuperFlash technology uses split-gate cells and thick-oxide tunneling injectors for enhanced endurance and reduced program/erase energy.
Internal architecture includes dedicated I/O buffers, address latches, X/Y decoders, and control logic managing byte-program, AAI-word-program, sector/block/chip-erase, and status register access. End-of-write detection is supported via software polling of BUSY bit or hardware RY/BY# output on SO during AAI mode after EBSY command.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized in uniform 4 KByte sectors, 32 KByte and 64 KByte overlay blocks |
| Supply Voltage | 2.7–3.6 V - enables direct interfacing with 3.3 V logic systems without level shifting |
| Max Clock Frequency | 50 MHz - supports high-speed High-Speed Read (0BH) and all write/erase commands at full rate |
| Write Endurance | 100,000 cycles (typical) - ensures long-term field reliability for firmware update partitions |
| Data Retention | >100 years - guarantees nonvolatile storage integrity across product lifecycle without refresh |
| Erase Times | Sector/Block-Erase: 18 ms (typ); Chip-Erase: 35 ms (typ) - enables rapid field updates and recovery sequences |
| Active/Standby Current | 10 mA (typ) read; 5 µA (typ) standby - minimizes power impact in battery-backed or low-power embedded systems |
Pinout & Package
Package: 8-contact WSON (6 mm × 5 mm), RoHS-compliant, moisture-sensitive level 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CE# | Chip Enable | Active-low device select; must remain low throughout command sequence; high-to-low transition initiates instruction acceptance |
| SO | Serial Data Output / RY/BY# | Standard SPI data output; reconfigurable as hardware busy indicator (0 = busy, 1 = ready) during AAI mode after EBSY command |
| WP# | Write Protect | Enables/disables BPL bit lock-down; controls software block protection enablement via status register |
| HOLD# | Hold | Suspends ongoing SPI transaction without deselecting device; maintains internal state and clock alignment |
| SCK | Serial Clock | Timing reference for SPI; rising edge samples SI, falling edge outputs SO; supports Mode 0 (idle low) and Mode 3 (idle high) |
| SI | Serial Data Input | Accepts opcodes, addresses, and data; MSB-first, sampled on SCK rising edge |
| VDD | Power Supply | 2.7–3.6 V supply input; powers core logic and memory array |
| VSS | Ground | Reference return path for all digital and analog circuitry |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces total programming time by eliminating repeated address transmission for sequential word writes |
| Hardware RY/BY# via SO Pin | Eliminates software polling overhead during AAI operations by providing real-time busy status on dedicated output pin |
| Flexible Block Protection | Configurable software write protection across 8 levels (none to full array) using BP3–BP0 bits with optional BPL lock-down |
| Dual SPI Mode Support | Ensures compatibility with both Mode 0 and Mode 3 host controllers without hardware modification |
| Low-Power Standby | 5 µA typical current draw enables always-on storage in energy-constrained IoT endpoints and portable devices |
Applications
| Boot Code Storage | Firmware Update Buffer |
|---|---|
Use Scenario: Storing primary bootloader and application firmware images for microcontrollers requiring cold-start execution. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast random-access read capability and deterministic chip-select timing for XIP or copy-to-RAM boot flows. Use Value: Enables reliable, low-latency boot within 100 ms using High-Speed Read (0BH) at 50 MHz, leveraging uniform sector layout for atomic image swaps. | Use Scenario: Holding validated firmware patches prior to safe installation during maintenance windows or over-the-air updates. IC Role / Device Role / Timing Role: Dual-bank update buffer supporting background download while active firmware runs, with AAI programming minimizing patch commit time. Use Value: Reduces update downtime by 65% vs. byte-program via AAI; 18 ms sector erase allows rapid validation rollback on failure. |
| Configuration Parameter Storage | Industrial Sensor Calibration Data |
Use Scenario: Persisting user-configurable settings (network IDs, thresholds, calibration offsets) across power cycles in smart meters and HMI panels. IC Role / Device Role / Timing Role: Low-energy parameter archive with selective write protection to prevent accidental corruption of critical factory defaults. Use Value: Software block protection (BP bits) isolates factory-calibrated regions from field-modifiable zones, ensuring regulatory compliance and traceability. | Use Scenario: Storing sensor-specific linearization coefficients, temperature compensation tables, and NIST-traceable calibration metadata in environmental monitoring nodes. IC Role / Device Role / Timing Role: High-reliability data vault with >100-year retention and 100,000-cycle endurance for infrequent but mission-critical recalibration events. Use Value: Industrial temperature rating (–40°C to +85°C) and SuperFlash reliability guarantee data integrity in uncontrolled outdoor enclosures over 15+ year deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q16JVSSIQ | 16 Mbit, 3.3 V, 104 MHz Quad SPI; requires QSPI interface and different command set | Higher throughput in QSPI-capable hosts; not pin-compatible or command-compatible with SST25VF016B-50-4I-S2AF | Select when migrating to faster Quad I/O and host supports W25QxxJV instruction set |
| Macronix MX25L1606EM2I-12G | 16 Mbit, 3.3 V, 86 MHz standard SPI; identical pinout and command set per JEDEC JESD216B | Drop-in replacement with same 8-pin SOIC/WSON footprints and functional equivalence in legacy designs | Preferred for second-source assurance where identical timing, voltage, and instruction behavior are required |
Compared with Winbond W25Q16JVSSIQ, SST25VF016B-50-4I-S2AF offers simpler SPI-only integration and lower system-level validation effort; compared with Macronix MX25L1606EM2I-12G, it provides identical functionality with proven field reliability in industrial control applications but slightly higher typical active current (10 mA vs. 8 mA).
Availability
SST25VF016B-50-4I-S2AF is available at Aetrix Electronics and suitable for boot code storage, firmware update buffering, and industrial configuration parameter retention requiring stable component supply and long-term lifecycle support.
Supply support for SST25VF016B-50-4I-S2AF 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 memory solutions for industrial, automotive, and consumer markets.
The SST25VF016B-50-4I-S2AF belongs to Microchip's 25-series Serial Flash family, designed specifically for cost-sensitive, space-constrained embedded systems needing robust, low-pin-count nonvolatile storage with industrial-grade reliability.
FAQ
What is the operating voltage range for the SST25VF016B-50-4I-S2AF?
The SST25VF016B-50-4I-S2AF operates from 2.7 V to 3.6 V. This single-supply range aligns with standard 3.3 V logic interfaces and eliminates the need for external voltage translation. Operation outside this range may cause unreliable read/write behavior or permanent damage. The SST25VF016B-50-4I-S2AF datasheet specifies that all electrical characteristics-including timing, endurance, and retention-are guaranteed only within this voltage window.
Does the SST25VF016B-50-4I-S2AF support both SPI Mode 0 and Mode 3?
Yes, the SST25VF016B-50-4I-S2AF fully supports 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. Idle SCK state differs-low in Mode 0, high in Mode 3-but internal logic adapts automatically. This dual-mode capability ensures interoperability with a wide range of microcontroller SPI peripherals without hardware redesign. The SST25VF016B-50-4I-S2AF does not require configuration to enable either mode.
How does hardware end-of-write detection work on the SST25VF016B-50-4I-S2AF?
Hardware end-of-write detection on the SST25VF016B-50-4I-S2AF uses the SO pin as a real-time RY/BY# indicator during Auto Address Increment (AAI) programming. After issuing the EBSY command (70H), the SO pin outputs '0' while busy and '1' when ready-eliminating software polling. CE# assertion makes the status visible; de-assertion returns SO to high-impedance. To exit, issue WRDI followed by DBSY (80H). This feature is exclusive to AAI mode and is documented in the SST25VF016B-50-4I-S2AF datasheet Section 4.4.6.
What package type is used for the SST25VF016B-50-4I-S2AF?
The SST25VF016B-50-4I-S2AF uses an 8-contact WSON package measuring 6 mm × 5 mm. It is RoHS-compliant and rated MSL-3 per J-STD-020. This leadless, surface-mount package reduces PCB area versus SOIC while maintaining thermal and mechanical robustness for reflow assembly. Pin assignments match the 8-lead SOIC variant electrically, but footprint and soldering requirements differ. The SST25VF016B-50-4I-S2AF part number suffix "S2AF" explicitly denotes this WSON packaging.
Can the SST25VF016B-50-4I-S2AF be used in industrial temperature environments?
Yes, the SST25VF016B-50-4I-S2AF is rated for the industrial temperature range of –40°C to +85°C. All specifications-including 50 MHz operation, 100,000 write cycles, and >100-year data retention-are guaranteed across this full range. The device undergoes extended burn-in and characterization at temperature extremes to validate performance in programmable logic controllers, motor drives, and outdoor instrumentation. This industrial qualification is confirmed in the SST25VF016B-50-4I-S2AF datasheet Section 1.2 and ordering information table.
SST25VF016B-50-4I-S2AF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 50 MHz
- Write Cycle Time - Word, Page:
- 10µs
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SST25VF016B-50-4I-S2AF FAQ
1.How can I place an order for SST25VF016B-50-4I-S2AF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF016B-50-4I-S2AF 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 SST25VF016B-50-4I-S2AF reliable?
The price and inventory of SST25VF016B-50-4I-S2AF are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF016B-50-4I-S2AF is usually 5 days.
3.What payment methods are accepted for SST25VF016B-50-4I-S2AF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF016B-50-4I-S2AF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF016B-50-4I-S2AF?
SST25VF016B-50-4I-S2AF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF016B-50-4I-S2AF 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 SST25VF016B-50-4I-S2AF?
For technical support, including SST25VF016B-50-4I-S2AF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF016B-50-4I-S2AF requirements.
6.How does Aetrix verify that SST25VF016B-50-4I-S2AF is sourced from the original manufacturer or authorized distributors?
All SST25VF016B-50-4I-S2AF 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 SST25VF016B-50-4I-S2AF meets industry standards.
7.What is the process for return or replacement of SST25VF016B-50-4I-S2AF?
All SST25VF016B-50-4I-S2AF units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF016B-50-4I-S2AF, 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 SST25VF016B-50-4I-S2AF part is unused and in its original packaging.
Return procedure for SST25VF016B-50-4I-S2AF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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