Product Overview
Winbond 16M-Bit Serial Flash in an 8-Pin SOIC, Sold One Piece at a Time
Condition
Condition is New. We hold these deeper than one, so the chip in the photos is representative of the stock rather than the individual piece you will receive. In the frame the package body is uniform matte black, the laser marking is crisp and fully legible - a winbond logo over 25X16BVSIG over 0910 - and the pin-1 dimple is visible at the lower left corner. The eight gull-wing leads sit flat and evenly formed, and on the face turned toward the camera no bent leads, no solder wetting and no probe or fixture marks are visible. The same photo also frames a second 8-pin device whose visible top marking reads 6850 over 7950002; this listing sells the Winbond serial flash, one piece per unit. A pen tip sits in the frame for scale only, so no dimension quoted anywhere on this page comes from the photo.
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Product Overview
The W25X16BVSSIG is Winbond's 16M-bit serial flash memory, 2M-byte of nonvolatile storage reached over an ordinary SPI bus with an added dual output read mode that clocks data out on two pins instead of one for roughly twice the read throughput at the same clock. The array is organized in uniform 4KB sectors, which is why this family lands in designs that rewrite small blocks of configuration, calibration or code without erasing something large. The photographed piece is the 8-lead gull-wing small outline package, with the top mark abbreviated to 25X16BVSIG the way Winbond shortens its ordering codes for the marking area. Supply voltage range, maximum serial clock frequency, any block erase sizes above the 4KB sector, program and erase timing, endurance and retention figures, and the exact SOIC body width the ordering suffix designates are not confirmed here - verify against the Winbond W25X16BV datasheet before use, and confirm the footprint before you commit a layout.
Key Features
- 16M-bit serial flash memory, 2M-byte of nonvolatile storage
- Standard SPI interface with dual output read mode
- Uniform 4KB sectors
- 8-lead gull-wing small outline package, surface mount
- Top marking on the photographed piece: winbond, 25X16BVSIG, 0910
- Condition New, priced and sold per piece
Applications
- Board-level repair where the original 16M-bit SPI flash has been corrupted, erased or lifted, and a same-family part keeps the command set and the pinout familiar.
- Microcontroller projects that need 2M-byte of storage for logs, fonts, wavetables or firmware images over four wires instead of a parallel bus and twenty more traces.
- Boot and configuration storage for an FPGA or SoC design, provided the loader on your side already speaks the 25-series command set.
- A repair bench or small production run keeping two or three new spares in the drawer rather than ordering a reel every time one chip goes bad.
Frequently Asked Questions
What exactly ships as one unit?
One Winbond 16M-bit serial flash chip. The photographed piece is representative of stock, not the exact chip that will be picked for your order, and the second 8-pin device visible in the same photo carries a different marking and is not the part sold here.
What do the lines on the top of the chip mean?
The first line is the winbond logo, the second is 25X16BVSIG, the shortened form of the W25X16BVSSIG ordering code that fits the marking area, and the third is a four-digit factory code reading 0910 on that particular piece. We have not confirmed the decode of that code with Winbond, and other pieces in stock may carry different ones.
Is this a 3.3V part?
Not confirmed here. Nothing on the part or in the photo states an operating voltage, and we have not verified the supply range this ordering suffix carries. Check the Winbond W25X16BV datasheet for the operating voltage of this exact ordering code before you put it on a 1.8V, 3.3V or 5V bus.
Will it drop into a socket or footprint built for a different 25-series flash?
Often, but not automatically. The 25-series command sets are broadly similar across makers and generations while differing in the details, and SOIC-8 flash comes in more than one body width. Not confirmed here - verify the command set and the footprint against the datasheet before use.
Why buy three of these instead of a reel of a hundred somewhere else?
Because you can take the count the job actually calls for. A repair needs one chip and maybe a spare; a small run of boards needs a handful. Buy that number, leave the rest on our shelf, and skip paying for ninety-six pieces that will sit in a drawer until the decade turns over. Shipping is a flat $8 per order, free once the order passes $28, and orders leave our Idaho warehouse the same or next business day.
Two megabytes of memory in a package the pen tip in the photo could hide, doing the one job nobody thanks it for: remembering what the board is supposed to be the instant power comes back. Program it, solder it down, and let it go back to being the quiet part nobody thinks about.
