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Microchip Technology SST25VF016B-50-4I-QAF
- Part No.:
- SST25VF016B-50-4I-QAF
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
SST25VF016B-50-4I-QAF.pdf
- Description:
- IC FLASH 16MBIT SPI 50MHZ 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:561
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Product details
Overview
SST25VF016B-50-4I-QAF 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-based embedded systems requiring fast, reliable, low-power firmware updates.
For engineers reviewing the SST25VF016B-50-4I-QAF datasheet, SST25VF016B-50-4I-QAF pinout, SST25VF016B-50-4I-QAF application, or SST25VF016B-50-4I-QAF equivalent, key selection criteria include SPI Mode 0/3 compatibility, hardware/software write protection granularity, AAI programming efficiency, and WSON-8 (6 mm × 5 mm) package suitability for space-constrained PCB layouts.
Technical Context
The SST25VF016B-50-4I-QAF implements a four-wire SPI interface 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 to achieve 100,000 program/erase cycles and >100 years data retention.
Internal architecture includes dedicated I/O buffers, address latches, X/Y decoders, and control logic managing sector/block/chip erase, byte-program, and Auto Address Increment (AAI) word-program operations. End-of-write detection is supported via software polling of the BUSY bit or hardware RY/BY# status output on SO during AAI mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 MByte) organized as uniform 4 KByte sectors, 32 KByte and 64 KByte overlay blocks |
| Supply Voltage | 2.7–3.6 V - enables direct connection to 3.3 V logic rails without level shifting |
| Max Clock Frequency | 50 MHz - supports high-speed read via High-Speed Read (0BH) instruction with dummy cycle |
| Erase/Program Speed | Chip-Erase: 35 ms typ; Sector-Erase: 18 ms typ; Byte-Program: 7 µs typ - reduces firmware update latency |
| Endurance & Retention | 100,000 cycles typ endurance; >100 years data retention - suitable for long-life industrial deployments |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
| Power Consumption | Active read current: 10 mA typ; Standby current: 5 µA typ - optimized for battery-backed or low-power systems |
Pinout & Package
Package: 8-contact WSON (6 mm × 5 mm), RoHS-compliant, moisture sensitivity level (MSL) 3 per JEDEC 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 latch |
| SO | Serial Data Output / RY/BY# (reconfigurable) | Outputs read data on falling SCK edge; reconfigured as hardware busy indicator during AAI programming when EBSY (70H) issued |
| WP# | Write Protect | Enables/disables Block-Protection-Lock (BPL) bit; low state locks BP3–BP0 bits in status register against modification |
| HOLD# | Hold | Suspends ongoing SPI transaction without deselecting device; maintains internal state and clock alignment |
| SCK | Serial Clock | Timing reference; data latched on rising edge (SI), shifted out on falling edge (SO); 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 |
| VDD | Power Supply | 2.7–3.6 V supply input; powers all internal circuitry including SuperFlash array and interface logic |
| VSS | Ground | Reference ground for all digital and analog functions; requires low-impedance PCB return path |
Key Features
| Feature | Design Value |
|---|---|
| Auto Address Increment (AAI) Programming | Reduces total programming time by eliminating repeated address transmission for sequential word writes |
| Flexible Erase Granularity | Supports 4 KByte sector, 32 KByte block, 64 KByte block, and full-chip erase - enables precise firmware partitioning and field updates |
| Dual SPI Mode Support | Compatible with both Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) - simplifies integration with varied MCU SPI peripherals |
| Hardware End-of-Write Detection | SO pin outputs real-time RY/BY# status during AAI programming (enabled via 70H command), eliminating software polling overhead |
| Software Write Protection | Configurable block protection via BP3–BP0 bits in status register, with lock-down capability via BPL bit and WP# pin |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing boot loader and application firmware in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Nonvolatile code storage with deterministic read latency (<100 ns access time implied by 50 MHz interface) and robust erase/write reliability under thermal cycling. Use Value: Enables field firmware upgrades without hardware replacement; 100,000-cycle endurance supports decades of maintenance cycles in unattended installations. |
Use Scenario: Holding certified boot code and calibration data in portable diagnostic equipment requiring regulatory-compliant data integrity and long-term retention. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage with software-configurable block protection to prevent accidental overwrite of critical medical parameters. Use Value: Meets IEC 62304 requirements for safe firmware storage; >100-year data retention ensures calibration validity across product lifetime without recalibration infrastructure. |
| Automotive Infotainment UI Assets | Smart Meter Firmware & Logs |
Use Scenario: Caching graphical assets, fonts, and localization strings in automotive head units where rapid UI rendering and over-the-air (OTA) updates are required. IC Role / Device Role / Timing Role: High-bandwidth serial flash supporting 50 MHz reads to feed display controller DMA engines with minimal CPU intervention. Use Value: Reduces OTA update time via AAI programming and fast sector erase; industrial temp rating ensures operation in parked vehicle cabin environments. |
Use Scenario: Logging energy consumption data and storing firmware in utility smart meters installed in outdoor enclosures subject to extended temperature exposure. IC Role / Device Role / Timing Role: Low-power nonvolatile memory with 5 µA standby current and –40°C to +85°C operation for multi-year battery-powered deployments. Use Value: Extends battery life beyond 10 years; uniform 4 KByte sectors allow efficient wear leveling across logging partitions without external controller overhead. |
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, 1.65–3.6 V supply, 104 MHz dual/quad SPI, no HOLD#/WP# pins in SOIC-8 variant; different status register map | Higher bandwidth but requires quad-SPI host support; lacks hardware RY/BY# on SO pin | Prefer for designs needing faster throughput and quad-SPI capability; verify pin compatibility and status register initialization sequence |
| Macronix MX25L1606EM2I-12G | 16 Mbit, 2.7–3.6 V, 80 MHz max clock, same 8-pin SOIC/WSON packages, supports SPI Mode 0/3, but no AAI programming | Higher clock speed but lacks Auto Address Increment - increases firmware update time for large binaries | Choose when maximum read speed is prioritized over programming efficiency; confirm absence of AAI does not impact field update SLA |
Compared with SST25VF016B-50-4I-QAF, W25Q16JVSSIQ offers higher bandwidth at the cost of interface complexity and missing hardware busy signaling, while MX25L1606EM2I-12G trades AAI acceleration for raw clock speed - making SST25VF016B-50-4I-QAF optimal for balanced, low-overhead firmware storage in resource-constrained industrial hosts.
Availability
SST25VF016B-50-4I-QAF is available at Aetrix Electronics and suitable for industrial PLCs, medical diagnostics, automotive infotainment, smart metering, and IoT edge gateways requiring stable component supply and long-term lifecycle assurance.
Supply support for SST25VF016B-50-4I-QAF 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 global provider of microcontrollers, analog components, and Flash memory solutions, emphasizing reliability, longevity, and design-in support for industrial and automotive markets.
The SST25VF016B-50-4I-QAF belongs to Microchip's 25-series Serial Flash family, engineered specifically for cost-sensitive, space-constrained embedded systems needing robust, low-power, SPI-compatible nonvolatile storage with industrial-grade qualification.
FAQ
What is the operating voltage range for the SST25VF016B-50-4I-QAF?
The SST25VF016B-50-4I-QAF operates from 2.7 V to 3.6 V. This single-supply range allows direct interfacing with standard 3.3 V logic families without level-shifting circuitry. Operation outside this range may cause unreliable read/write behavior or permanent damage. The SST25VF016B-50-4I-QAF is not rated for 1.8 V or 5 V operation.
Does the SST25VF016B-50-4I-QAF support both SPI Mode 0 and Mode 3?
Yes, the SST25VF016B-50-4I-QAF explicitly supports both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as confirmed in the official Microchip datasheet DS20005044C. This dual-mode capability ensures compatibility with a broad range of microcontroller SPI peripherals without requiring hardware modifications. The SST25VF016B-50-4I-QAF detects mode automatically based on SCK idle state.
What package type is used for the SST25VF016B-50-4I-QAF?
The SST25VF016B-50-4I-QAF is packaged in an 8-contact WSON (6 mm × 5 mm) with exposed pad, per the "QAF" suffix designation. This RoHS-compliant, surface-mount package provides thermal and electrical performance advantages over SOIC in dense layouts. The SST25VF016B-50-4I-QAF is not offered in SOIC-8 for this specific ordering option.
How does Auto Address Increment (AAI) programming improve efficiency in the SST25VF016B-50-4I-QAF?
AAI programming in the SST25VF016B-50-4I-QAF eliminates the need to resend the address for each subsequent word write, reducing instruction overhead and total programming time for contiguous data. After initial ADH command and address, only two data bytes per cycle are required. This feature directly lowers firmware update duration compared to standard byte-program mode. The SST25VF016B-50-4I-QAF supports AAI up to its highest unprotected address without wraparound.
What is the endurance and data retention specification for the SST25VF016B-50-4I-QAF?
The SST25VF016B-50-4I-QAF guarantees 100,000 program/erase cycles typical and greater than 100 years of data retention at +25°C, as specified in Microchip's DS20005044C datasheet. These values are measured using SuperFlash technology and apply across the full industrial temperature range (–40°C to +85°C). The SST25VF016B-50-4I-QAF meets long-life deployment requirements for infrastructure and medical equipment.
SST25VF016B-50-4I-QAF Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- SST25
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- 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:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
SST25VF016B-50-4I-QAF FAQ
1.How can I place an order for SST25VF016B-50-4I-QAF through Aetrix?
Please submit a Request for Quotation (RFQ) for SST25VF016B-50-4I-QAF 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-QAF reliable?
The price and inventory of SST25VF016B-50-4I-QAF 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-QAF is usually 5 days.
3.What payment methods are accepted for SST25VF016B-50-4I-QAF?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SST25VF016B-50-4I-QAF transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SST25VF016B-50-4I-QAF?
SST25VF016B-50-4I-QAF orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SST25VF016B-50-4I-QAF 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-QAF?
For technical support, including SST25VF016B-50-4I-QAF datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SST25VF016B-50-4I-QAF requirements.
6.How does Aetrix verify that SST25VF016B-50-4I-QAF is sourced from the original manufacturer or authorized distributors?
All SST25VF016B-50-4I-QAF 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-QAF meets industry standards.
7.What is the process for return or replacement of SST25VF016B-50-4I-QAF?
All SST25VF016B-50-4I-QAF units undergo pre-shipment inspection (PSI). If there is an issue with SST25VF016B-50-4I-QAF, 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-QAF part is unused and in its original packaging.
Return procedure for SST25VF016B-50-4I-QAF:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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