My Inquiry
My Account
Winbond Electronics Corporation W25Q16VSFIG
- Part No.:
- W25Q16VSFIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q16VSFIG.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,753
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W25Q16VSFIG from Winbond is a 16 M-bit (2 MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces. It features 8,192 × 256-byte programmable pages, 4 KB uniform sectors, and operates on a single 2.7–3.6 V supply with 4 mA active current and <1 µA power-down current. It enables XIP (execute-in-place) code execution in embedded microcontrollers for boot code storage.
For engineers reviewing the W25Q16VSFIG datasheet, W25Q16VSFIG pinout, W25Q16VSFIG application, or W25Q16VSFIG equivalent, key selection considerations include Quad SPI timing (up to 80 MHz clock / 320 MHz equivalent), hardware write protection via /WP and /HOLD pins, JEDEC ID and 64-bit unique serial number support, and compatibility with industrial temperature range (–40°C to +85°C).
Technical Context
The W25Q16VSFIG implements a SPI command-set architecture with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where Quad mode requires non-volatile QE bit (Status Register-2, bit 1) to be set. Its internal block diagram includes a 256-byte page buffer, column/row decode logic, high-voltage generators, and status register control for erase/write sequencing.
Write protection combines software (SRP0/SRP1, BP2–BP0, TB, SEC bits) and hardware (/WP pin active-low, functional only in Standard/Dual SPI), while /HOLD provides bus arbitration pause capability - both disabled when QE=1. Erase granularity supports 4 KB sectors, 32 KB blocks, 64 KB blocks, and full-chip erase, with ≥100,000 program/erase cycles and >20-year data retention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 × 256-byte pages |
| SPI Interface Modes | Standard (4-wire), Dual I/O (4-wire), Quad I/O (6-wire); QE bit required for Quad |
| Max Clock Frequency | 80 MHz; enables 160 MHz dual-output or 320 MHz quad-output effective throughput |
| Erase Granularity | 4 KB sectors (512 total), 32 KB blocks (64 total), 64 KB blocks (32 total), chip-erase |
| Supply Voltage | 2.7 V to 3.6 V; supports single-rail operation in battery-powered and industrial systems |
| Operating Temperature | –40°C to +85°C; qualified for industrial-grade embedded applications |
| Power Consumption | 4 mA typical active current; <1 µA typical power-down current for low-energy standby |
| Data Retention | Greater than 20 years at +85°C; validated for long-life firmware storage |
Pinout & Package
W25Q16VSFIG is packaged in an 8-pin SOIC 208-mil (package code SS), with gull-wing leads and standard surface-mount footprint. Pin 1 is marked by a beveled corner or dot; device is lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; places DO in high-impedance state when deasserted; must transition high→low after power-up before instruction acceptance |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; used for read data and status feedback |
| 3 /WP (IO2) | Hardware Write Protect / Bidirectional I/O | Active-low hardware lock for Status Register; repurposed as IO2 in Quad SPI when QE=1 |
| 4 GND | Ground Reference | Primary signal and power return path; requires low-impedance PCB connection to minimize noise coupling |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; carries instructions, addresses, and write data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports SPI Modes 0 and 3; max 80 MHz frequency with defined setup/hold timing |
| 7 /HOLD (IO3) | Hold Control / Bidirectional I/O | Active-low bus arbitration pause; disables DI/CLK sampling and tri-states DO; repurposed as IO3 in Quad SPI when QE=1 |
| 8 VCC | Power Supply | Single 2.7–3.6 V rail; requires local 0.1 µF ceramic decoupling capacitor placed near pin |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP operation with ≤8-clock instruction overhead per 24-bit address access, reducing CPU wait states |
| Quad SPI Enable (QE bit) | Non-volatile configuration bit (Status Register-2, bit 1) enabling 4-line I/O for 4× bandwidth increase over Standard SPI |
| Flexible Protection Scheme | Combines hardware /WP pin, software-configurable BP2–BP0 + TB + SEC bits, and SRP0/SRP1 lock-down for multi-layer security |
| Unique Device Identification | Factory-programmed 64-bit serial number accessible via Read Unique ID (4Bh) instruction for secure provisioning and traceability |
| JEDEC Compliance | Supports standard Manufacturer ID (90h), Device ID (90h), and JEDEC ID (9Fh) commands for universal toolchain recognition |
Applications
| Boot Code Storage | Firmware Update Storage |
|---|---|
Use Scenario: Storing primary bootloader and application firmware for ARM Cortex-M or RISC-V microcontrollers during cold start. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling direct execution without RAM copy. Use Value: Reduces system BOM by eliminating external RAM for boot staging; supports deterministic startup timing via 320 MHz equivalent read throughput. | Use Scenario: Holding field-upgradable firmware images in industrial gateways and IoT edge nodes. IC Role / Device Role / Timing Role: Dual-bank or A/B partitioned storage for atomic firmware swaps with rollback capability. Use Value: Enables safe over-the-air updates using 4 KB sector erase granularity and hardware write protection to prevent corruption during power loss. |
| Configuration & Calibration Data | Audio/Log Buffer Storage |
Use Scenario: Persisting sensor calibration coefficients, network credentials, and device-specific settings in medical or test equipment. IC Role / Device Role / Timing Role: Parameter storage with byte-level random access and 100,000+ endurance cycles for frequent rewrites. Use Value: Eliminates need for separate EEPROM; leverages 4 KB sector erase to isolate parameter regions from firmware, preventing accidental overwrite. | Use Scenario: Capturing audio snippets or diagnostic logs in voice-controlled devices and predictive maintenance sensors. IC Role / Device Role / Timing Role: Circular buffer storage with fast sequential writes via Page Program (02h) and Quad Input Page Program (32h). Use Value: Achieves sustained 40 MB/s read transfer rate and efficient 256-byte page programming for real-time streaming capture. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606E/MX25L1633F | Same density (16 M-bit), SPI-only (no native Quad I/O); requires external QPI emulation; lower max clock (75 MHz) | Lacks native Quad SPI and Continuous Read Mode; not suitable for XIP-critical designs requiring >300 MHz effective bandwidth | Select only if legacy SPI-only controller compatibility is mandatory and bandwidth headroom exists. |
| S25FL116K | 16 M-bit, supports Quad SPI and XIP; includes built-in ECC and sector lockdown; higher write latency (tPP = 3 ms vs. 2.5 ms) | Better data integrity for safety-critical logging; tighter security controls but larger die size and cost premium | Prefer when end-equipment requires ASIL-B compliance or certified secure storage beyond basic write protection. |
Compared with MX25L1606E and S25FL116K, the W25Q16VSFIG delivers optimal balance of Quad SPI performance, industrial temperature support, and cost-effective 4 KB sector flexibility - making it ideal for resource-constrained embedded systems requiring reliable, high-speed code and data storage without ECC or safety certification overhead.
Availability
W25Q16VSFIG is available at Aetrix Electronics and suitable for boot code storage, firmware update storage, and configuration data retention requiring stable component supply across industrial, automotive, and consumer electronics programs.
Supply support for W25Q16VSFIG 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
Winbond Electronics is a Taiwan-based semiconductor manufacturer specializing in specialty memory solutions, including NOR/NAND flash, RAM, and mobile DRAM.
The W25Q series was designed specifically for embedded systems needing high-speed, low-power, and flexible serial flash - targeting code shadowing, XIP execution, and robust firmware/data storage in space-constrained designs.
FAQ
What is the package type and lead count for W25Q16VSFIG?
W25Q16VSFIG uses an 8-pin SOIC 208-mil package (package code SS) with gull-wing leads. It is RoHS-compliant, lead-free, and compatible with standard reflow soldering profiles. This package matches industry-standard footprints for ease of PCB layout and assembly.
Does W25Q16VSFIG support Quad SPI mode out of the box?
No - W25Q16VSFIG requires the Quad Enable (QE) bit in Status Register-2 to be set via Write Status Register (01h) instruction before Quad SPI operation is enabled. By default, QE=0; Standard SPI is active on power-up. The /WP and /HOLD pins become IO2 and IO3 only after QE is programmed and verified.
How does hardware write protection work on W25Q16VSFIG?
Hardware write protection on W25Q16VSFIG is implemented via the active-low /WP pin, which prevents Status Register modification when asserted. This function is only available in Standard and Dual SPI modes; it is disabled in Quad SPI because /WP is repurposed as IO2. Protection remains effective even if software write-enable is active.
What is the maximum continuous read data rate achievable with W25Q16VSFIG?
W25Q16VSFIG achieves up to 40 MB/s continuous read data rate using Fast Read Quad I/O (EBh) instruction at 80 MHz clock. This equates to 320 MHz effective throughput (4 bits/cycle × 80 MHz), exceeding standard parallel flash performance while using only six signal lines.
Can W25Q16VSFIG be used for execute-in-place (XIP) applications?
Yes - W25Q16VSFIG supports true XIP via Continuous Read Mode, which minimizes instruction overhead to as few as 8 clocks per 24-bit address. When paired with a host MCU supporting Quad SPI and memory-mapped interface, W25Q16VSFIG allows direct code execution without copying to RAM, reducing boot time and memory footprint.
W25Q16VSFIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 80 MHz
- Write Cycle Time - Word, Page:
- 50µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
W25Q16VSFIG FAQ
1.How can I place an order for W25Q16VSFIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16VSFIG 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 W25Q16VSFIG reliable?
The price and inventory of W25Q16VSFIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16VSFIG is usually 5 days.
3.What payment methods are accepted for W25Q16VSFIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16VSFIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16VSFIG?
W25Q16VSFIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16VSFIG 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 W25Q16VSFIG?
For technical support, including W25Q16VSFIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16VSFIG requirements.
6.How does Aetrix verify that W25Q16VSFIG is sourced from the original manufacturer or authorized distributors?
All W25Q16VSFIG 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 W25Q16VSFIG meets industry standards.
7.What is the process for return or replacement of W25Q16VSFIG?
All W25Q16VSFIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16VSFIG, 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 W25Q16VSFIG part is unused and in its original packaging.
Return procedure for W25Q16VSFIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16VSFIG Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
