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W25Q128JVSIQ Winbond Electronics Memory IC image
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Winbond Electronics W25Q128JVSIQ

Manufacturer
Winbond Electronics
Mfr. Part #
W25Q128JVSIQ
WLX Part #
A2351800173
Package
SOIC-8_208mil
Datasheet
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W25Q128JVSIQ Parameter Description

The W25Q128JVSIQ is a high-performance, low-power 128-Megabit (16-Megabyte) Serial NOR Flash memory solution engineered by Winbond Electronics. Designed to meet the storage demands of complex, space-constrained embedded platforms, it supports flexible Standard, Dual, and Quad SPI communication interfaces. Operating at a maximum clock frequency of 133 MHz, this non-volatile memory chip achieves an equivalent throughput of up to 532 MHz when used in Quad SPI mode. This rapid bandwidth makes it optimized for execute-in-place (XIP) configurations, allowing direct execution of boot codes and micro-kernels. Housed in an industry-standard 8-pin SOIC (208-mil) package and rated for industrial-temperature operation (-40°C to 85°C), it ensures long-term deployment reliability across diverse environments.


Technical Highlights & Architectural Merits


* Expanded Storage Density: Provides a robust 128M-bit (16MB) hardware footprint, offering double the memory architecture capacity of standard 64M-bit (8 MB) variants to support multi-layer security stacks and extensive local data logging.

* Blistering Quad SPI Bandwidth: Clocked at 133MHz to deliver massive data transfer rates up to 50MB/s under Quad I/O settings, drastically accelerating system boot execution timelines.

* Flexible Sector Architecture: Features a uniform 4KB sector-erase structural layout, coupled with 32KB and 64KB block-erase capabilities, providing embedded software developers maximum efficiency for precise firmware updates.

* Advanced Code Protection Guardrails: Outfitted with software/hardware block write-protection mechanics alongside three 256-byte Security Registers featuring permanent OTP (One-Time Programmable) locks to isolate boot code regions from unexpected corruption.


Typical Applications


* Advanced Network Communications: Storing complex firmware, core routing operating systems, and encrypted profiles in industrial 5G modems, smart meters, and enterprise routers.

* Automotive Telematics & Safety Systems: Retaining high-resolution sensor calibration metrics, ADAS operational maps, and real-time electronic control unit logs.

* Smart Grid & Automation Controllers: Providing reliable, long-lifecycle storage for programmable logic controllers (PLCs) and HMI (Human-Machine Interface) edge terminals.


Cross-Reference & Sourcing Alternatives

Part Number
Manufacturer
Match Type
Sourcing Note & Structural Advantages
W25Q128JVFIQ
WinbondPackage Variant
Identical 128Mb Quad-SPI silicon but housed in a larger SOIC-16 (300mil) package. Crucial for matching retrofitted board layouts.
GD25Q128ESIG
GigaDeviceCross-BrandA highly compatible, industrial 128Mb Quad-SPI NOR Flash drop-in alternative sharing the exact SOIC-8 208mil footprint.
MX25L12833FM2I-10G
MacronixCross-BrandMulti-I/O high-speed 128Mb Serial NOR Flash in a SOIC-8 208mil case. Review exact AC clock margins prior to drop-in substitution.

Purchase Guide

1. Send Enquiry
You can send an inquiry by email, or add the item to the RFQ list and submit it to us.
Tell us the model and quantity you need, our sales staff will reply the price in time.

sales@welllinkchips.com




2. Receive a quote
You will receive an email with the price, quantity and delivery date of the product you need

3. Payment
You can pay the orders by wire transfer offline. We support: Paypal,VISA.
Please fill the shipping address and express information when placing your order. We support: UPS,DHL,Fedex,SF


Shipping & Delivering

1. Shipping & Delivering
After receiving your payment, we will ship the goods for you within the delivery period and send the shipping number by email

2. Shipping cost already shown on the quote, please check your email.

3.We will evaluate the shipping cost according to the price of the product you purchased and the shipping address. If you need to specify the shipping method, you can notify us by email.

4. We support DHL, FedEx, UPS, SF to ship your goods by default



5.Regarding in stock parts, orders can generally be ready to ship within 4 hours.
We ship daily at 5pm.（UTC/GMT+8）
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose:
FedEx International, 5-7 business days.
DHL Express, 5-7 business days.

The following are some common countries' logistic time.



Note: 

The above table is for reference only, there may will have some delay for the uncontrollable factors.




Refund & Return
Refund
Refunds are normally accepted within 30 days from the date of the parcel delivered. Please contact our support team for any issues immediately once you receive your parcels includes but is not limited to below reasons:
Not received the parcel normally
Yes, we guarantee a refund or to resend your order if you haven't received the parcel beyond the regular shipping days, except the case which customer takes the responsibility for the unsuccessful delivery such as providing an incorrect shipping address, can not complete the customs clearance due to customer's reason, etc. Note: If the following issues occurs: extreme weather, post office delay, customs clearance, local protest, etc. In this case, we are incapable of guaranteeing on-time delivery, but we'll try our best to support you,thanks.
Some items missing from my shipment
First, check that you've received all the boxes associated with your order. Then fully empty each box you received, sometimes small parts get caught in crevices or in packing material. If you still can't find your item, please email customer service right away. Include a description of the missing quantities and pictures of the whole parcel. We'll forward them to our warehouse to check the monitor records and the packing pictures records. Steps:
1. Send email to support team for authorization.
2. We'll check and verify the issues.
3. Offer solutions to customer case by case.
Return
By returning products to WELL LINK CHIPS, the Customer certifies that the products were purchased from WELL LINK CHIPS and there has been no substitution in whole or part of the same product from another supplier, distributor or other such sources of the product. The return should be in the original packaging and in unused condition (except defective). ESD or moisture-sensitive products should not be opened except under controlled conditions. General Rules: Returns are normally accepted within 365 days from the date of the parcel delivered. When a customer requests a return due to 'non-original/fake/quality problems', a valid quality report from a third-party authoritative organization recognized by our company is required for the return and exchange. Any charges from customs and other fees should be paid by customers if the return reason is customers' reason, such as buy parts mistakenly,etc. Return Freight charges must be prepaid; we will not accept COD shipments.
  • *
SUBMIT
Welllink Chips’ quality control process is carried out in strict accordance with the ISO9001 international quality management system, and quality risks are controlled and reduced through strict supplier control measures + quality testing and other measures.
Supplier level control (Qualified suppliers, provisional suppliers and blacklisted suppliers)
Graded
management
Regular
assessment
Dynamic
management
  • Qualified suppliers
  • Original manufacturers, authorised agents, suppliers without quality incidents.
  • Provisional suppliers
  • Upgrade only if suppliers have passed the profile audit and have worked together 3 times or more without quality incidents.
  • Blacklisted suppliers
  • There is the sale of counterfeit and refurbished parts and the defaulting supplier will be permanently blacklisted.
Quality testing (QC process according to international standards to guarantee product quality)
Testing process:
Primary testing
Labels and outer packaging
Secondary testing
Appearance and electrical properties
Tertiary testing
Slicing, open cap, solderability, ambient temperature, ageing, X-RAY, ultrasound

  • External Visual Inspection

  • Electrical performance testing

  • Key functional testing

  • Key functional testing

  • Slice testing

  • X-RAY Inspection

Stock: 94186 PCS PCS

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