Device Overview
W25Q128JVSIQ is a Winbond W25Q-JV series 128 Mbit QSPI NOR flash orderable in a 208 mil 8-pin SOP package. It provides 16 MB of nonvolatile code/data storage through standard SPI, Dual I/O and Quad I/O interfaces.
Key Selection Information
| Parameter | Verified Information |
|---|---|
| Manufacturer | Winbond |
| Exact MPN | W25Q128JVSIQ |
| Memory type | QSPI NOR flash |
| Density | 128 Mbit / 16 MB |
| Operating voltage | 2.7 V to 3.6 V |
| STR clock frequency | Up to 133 MHz |
| Interface | Standard SPI / Dual / Quad I/O |
| Operating temperature | -40 °C to +85 °C |
| Package | SOP-8, 208 mil |
| SFDP | Version B listed in Winbond’s current product-selection guide |
| Manufacturer selection-guide status | Mass Production |
Engineering Selection Notes
This device is NOR flash, not serial NAND. Firmware can use NOR-style random reads and erase/program management rather than NAND bad-block and page-buffer handling, but erase-sector policy and power-fail behavior still need to be designed deliberately.
The 133 MHz figure is the serial clock ceiling for the listed STR interface. Effective read throughput depends on command type, dummy cycles, SPI versus Dual/Quad I/O mode and the host controller’s transaction overhead.
The exact SIQ orderable fixes the 128 Mbit density, -40 °C to +85 °C temperature grade and 208 mil SOP-8 package. Nearby W25Q128JV suffixes use different packages or temperature grades, so the family name alone is not enough for BOM substitution.
Official Engineering Resources
Quality & Verification Support
Third-party inspection or testing can be arranged according to customer requirements. Testing fees are borne by the buyer. Additional verification requirements can be discussed before shipment.
For this 128-Mbit W25Q128JV IQ memory in a wider leaded 300-mil SOIC-16 rather than the present 208-mil SOIC-8, review W25Q128JVFIQ. If a leadless 8 x 6 mm WSON-8 is preferred, compare W25Q128JVEIQ. Both are 2.7 to 3.6 V variants but require independent PCB footprint and assembly checks rather than assuming direct interchangeability.
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For W25Q128JVSIQ sourcing, provide the required quantity, destination, target Date Code if applicable, and any inspection or testing requirements.
