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Microchip Technology SST25VF016B-50-4C-QAF-T
- Part No.:
- SST25VF016B-50-4C-QAF-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25VF016B-50-4C-QAF-T.pdf
- Description:
- IC FLASH 16MBIT SPI 50MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,038
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Product details
Overview
SST25VF016B-50-4C-QAF-T from Microchip Technology is a 16 Mbit SPI serial flash memory IC with SuperFlash technology, supporting 50 MHz high-speed read, 2.7–3.6 V single-supply operation, and uniform 4 KByte/32 KByte/64 KByte erase granularity. It serves as nonvolatile program/data storage in microcontroller boot loaders, firmware update buffers, and embedded configuration memory.
For engineers reviewing the SST25VF016B-50-4C-QAF-T datasheet, SST25VF016B-50-4C-QAF-T pinout, SST25VF016B-50-4C-QAF-T application, or SST25VF016B-50-4C-QAF-T equivalent, key selection criteria include SPI Mode 0/3 compatibility, hardware/software end-of-write detection, sector/block/chip erase flexibility, low active current (10 mA), and industrial temperature range (–40°C to +85°C).
Technical Context
The SST25VF016B-50-4C-QAF-T implements a four-wire SPI interface with CE#, SCK, SI, and SO pins, supporting both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). Its internal architecture features a split-gate SuperFlash memory cell enabling 100,000 program/erase cycles and >100 years data retention.
It integrates dual end-of-write detection: software polling of BUSY bit in status register (bit 0), and hardware RY/BY# output on SO pin during AAI programming when enabled via EBSY (70H) command. Write protection is implemented via WP# pin control of BPL bit and software-configurable BP3–BP0 bits for granular memory locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized as uniform 4 KByte sectors, 32 KByte blocks, and 64 KByte blocks |
| Max Clock Frequency | 50 MHz for High-Speed Read and all Erase/Program operations - enables fast firmware loading and OTA update throughput |
| Supply Voltage | 2.7–3.6 V single supply - compatible with 3.3 V logic systems without level shifting |
| Endurance & Retention | 100,000 program/erase cycles typical; >100 years data retention - suitable for field-updatable embedded devices |
| Active/Standby Current | 10 mA typical active read current; 5 µA typical standby current - reduces power budget in battery-backed or energy-sensitive designs |
| Operating Temperature | –40°C to +85°C industrial grade - validated for automotive body control, industrial HMIs, and outdoor IoT gateways |
| Erase Times | 18 ms typical sector/block erase; 35 ms typical chip erase - enables rapid reconfiguration without long system downtime |
Pinout & Package
Package: 8-contact WSON (6 mm × 5 mm, QAF suffix), RoHS-compliant, moisture sensitivity level 3.
| 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 latch |
| SCK | Serial Clock | Timing reference for SPI; rising edge latches SI input; falling edge outputs SO data; supports Mode 0 and Mode 3 |
| SI | Serial Data Input | Command, address, and data input path; MSB-first, synchronized to SCK rising edge |
| SO | Serial Data Output / RY/BY# | Read data output or hardware busy status indicator during AAI mode when configured via EBSY (70H) |
| WP# | Write Protect | Enables/disables BPL bit lock-down; low = BPL controls BP3–BP0 writability; high = BP bits freely configurable |
| HOLD# | Hold Control | Suspends ongoing SPI transaction without deselecting device; preserves internal state and clock alignment |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; decoupling capacitor required per datasheet layout guidelines |
| VSS | Ground | Reference return path for all signals and power; requires low-impedance connection to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces total programming time by eliminating repeated address transmission for sequential word writes |
| Hardware End-of-Write Detection | SO pin outputs real-time RY/BY# status during AAI mode, removing software polling overhead and improving deterministic timing |
| Flexible Block Protection | Four BP bits enable software-selectable protection of memory regions from 1/32 to full array - supports secure bootloader partitioning |
| Uniform Erase Architecture | Coexistence of 4 KByte sectors, 32 KByte blocks, and 64 KByte blocks allows optimal erase granularity for code vs. config data |
| SuperFlash Technology | Split-gate cell design delivers lower program/erase voltage, reduced current draw, and higher endurance than standard NOR flash |
Applications
| Boot Code Storage | Firmware Update Buffer |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image executed at MCU power-on reset. IC Role / Device Role / Timing Role: Nonvolatile storage for executable code; accessed via SPI during cold start before RAM initialization. Use Value: Fast 50 MHz High-Speed Read ensures sub-100 ms boot latency; 100,000-cycle endurance supports field firmware patching over product lifetime. | Use Scenario: Holding validated new firmware images prior to atomic swap and reset in OTA update workflows. IC Role / Device Role / Timing Role: Dual-bank staging area; one bank active, one bank receiving download via UART/USB/Ethernet. Use Value: Chip-erase (35 ms) and block-erase (18 ms) enable rapid preparation of update region; WP#/status register protection prevents accidental overwrite during transfer. |
| Configuration Parameter Storage | Industrial HMI Display Assets |
Use Scenario: Persisting calibration coefficients, user preferences, and network settings across power cycles in PLCs and sensors. IC Role / Device Role / Timing Role: Byte-programmable NV storage; updated infrequently but requiring high reliability and data integrity. Use Value: 4 KByte sector erase isolates config updates from code regions; >100-year data retention eliminates need for battery-backed SRAM. | Use Scenario: Hosting bitmap fonts, UI icons, and localized language strings for touch-based HMIs in factory automation panels. IC Role / Device Role / Timing Role: Read-mostly graphics resource cache; accessed sequentially during screen render via DMA-capable SPI controller. Use Value: 50 MHz read speed sustains >20 MB/s throughput for high-resolution asset streaming; industrial temp rating ensures stable operation in uncooled enclosures. |
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 |
|---|---|---|---|
| Winbond W25Q16JVSSIQ | 16 Mbit, 133 MHz max clock, Quad SPI support, 1.65–1.95 V / 2.7–3.6 V dual supply option | Higher bandwidth for XIP or parallel-read use cases; lacks HOLD# pin and AAI programming | Select when needing Quad SPI or faster random access; verify absence of HOLD# and AAI does not impact suspend/resume logic. |
| Cypress S25FL116K0XMFI010 | 16 Mbit, 85 MHz max clock, 2.7–3.6 V, supports SFDP and 4-byte addressing | Includes Serial Flash Discoverable Parameters table for auto-configuration; no hardware RY/BY# on SO pin | Prefer for systems requiring standardized JEDEC SFDP enumeration; confirm software polling suffices for write completion detection. |
Compared with SST25VF016B-50-4C-QAF-T, W25Q16JVSSIQ offers higher speed and quad interface but removes HOLD# and AAI - critical for low-latency suspend and efficient sequential programming. S25FL116K0XMFI010 adds SFDP compliance and faster clock but omits hardware RY/BY# output, increasing CPU load during programming.
Availability
SST25VF016B-50-4C-QAF-T is available at Aetrix Electronics and suitable for industrial HMIs, automotive telematics modules, and IoT edge gateways requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SST25VF016B-50-4C-QAF-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 manufacturer specializing in microcontrollers, analog devices, and memory solutions, with emphasis on reliability, longevity, and embedded system integration.
The SST25VF016B-50-4C-QAF-T belongs to Microchip's 25-series Serial Flash family, designed specifically for cost-sensitive, space-constrained embedded applications requiring robust nonvolatile storage with SPI simplicity and SuperFlash endurance.
FAQ
What is the maximum operating frequency of the SST25VF016B-50-4C-QAF-T?
The SST25VF016B-50-4C-QAF-T supports up to 50 MHz for High-Speed Read, Sector-Erase, Block-Erase, Chip-Erase, Byte-Program, and AAI-Word-Program operations. This is confirmed in the "Features" section and Table 4-4 of DS20005044C, where all timing-critical instructions list "50 MHz" under Maximum Frequency. The "-50" in the part number explicitly denotes this 50 MHz rating.
Does the SST25VF016B-50-4C-QAF-T support both SPI Mode 0 and Mode 3?
Yes, the SST25VF016B-50-4C-QAF-T explicitly supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as stated in the "Features" list and Section 4.0 "Device Operation". The device samples SI on the rising edge and drives SO on the falling edge in both modes, differing only in idle SCK polarity - enabling interoperability with diverse host controllers.
How does hardware end-of-write detection work on the SST25VF016B-50-4C-QAF-T?
Hardware end-of-write detection on the SST25VF016B-50-4C-QAF-T uses the SO pin as a real-time RY/BY# indicator during AAI programming. After issuing the EBSY (70H) command, SO outputs '0' while busy and '1' when ready. This eliminates software polling of the BUSY bit, reducing CPU overhead and improving deterministic timing - a feature documented in Sections 4.4.6 and Figure 4-6 of DS20005044C.
What package type does the SST25VF016B-50-4C-QAF-T use?
The SST25VF016B-50-4C-QAF-T uses an 8-contact WSON package measuring 6 mm × 5 mm, identified by the "QAF" suffix per Microchip's naming convention and confirmed in the "Packages Available" feature list and Figure 2-1 of DS20005044C. This compact, leadless package supports automated assembly and provides thermal performance suitable for industrial environments.
Can the SST25VF016B-50-4C-QAF-T be used in industrial temperature applications?
Yes, the SST25VF016B-50-4C-QAF-T is rated for the industrial temperature range of –40°C to +85°C, as specified in the "Features" section and Section 1.0 of DS20005044C. This rating applies to the QAF package variant and is validated across all electrical parameters including read/write timing, endurance, and data retention - making it suitable for factory automation, transportation, and outdoor infrastructure deployments.
SST25VF016B-50-4C-QAF-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not 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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
SST25VF016B-50-4C-QAF-T FAQ
1.How can I place an order for SST25VF016B-50-4C-QAF-T through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF016B-50-4C-QAF-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 SST25VF016B-50-4C-QAF-T reliable?
The price and inventory of SST25VF016B-50-4C-QAF-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SST25VF016B-50-4C-QAF-T is usually 5 days.
3.What payment methods are accepted for SST25VF016B-50-4C-QAF-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF016B-50-4C-QAF-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF016B-50-4C-QAF-T?
SST25VF016B-50-4C-QAF-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF016B-50-4C-QAF-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 SST25VF016B-50-4C-QAF-T?
For technical support, including SST25VF016B-50-4C-QAF-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF016B-50-4C-QAF-T requirements.
6.How does Aetrix verify that SST25VF016B-50-4C-QAF-T is sourced from the original manufacturer or authorized distributors?
All SST25VF016B-50-4C-QAF-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 SST25VF016B-50-4C-QAF-T meets industry standards.
7.What is the process for return or replacement of SST25VF016B-50-4C-QAF-T?
All SST25VF016B-50-4C-QAF-T units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF016B-50-4C-QAF-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 SST25VF016B-50-4C-QAF-T part is unused and in its original packaging.
Return procedure for SST25VF016B-50-4C-QAF-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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