Winbond Electronics Corporation W25X10BVSNIG

Overview

W25X10BVSNIG from Winbond is a 1M-bit (128KB) serial NOR flash memory IC with SPI interface, 4KB uniform sectors, dual I/O support, and single 2.7–3.6V supply. It delivers up to 104MHz clock operation (208Mbps effective via Fast Read Dual I/O), supports page program (<1ms), sector/block/chip erase, and operates across –40°C to +85°C for embedded code storage and data logging in space-constrained systems.

For engineers reviewing the W25X10BVSNIG datasheet, W25X10BVSNIG pinout, W25X10BVSNIG application, or W25X10BVSNIG equivalent, key selection criteria include 4KB sector granularity for firmware parameter partitioning, hardware /WP and /HOLD pins for robust SPI bus sharing, JEDEC ID compatibility (EFh/10h), and SOIC-150-mil (SN) package suitability for legacy PCB layouts.

Technical Context

The W25X10BVSNIG implements a standard SPI Mode 0/3 interface with dedicated /CS, CLK, /WP, /HOLD, and bidirectional IO0/IO1 pins. Its internal architecture includes a 256-byte page buffer, status register with BP2–BP0/TB/SRP bits for granular hardware+software write protection, and high-voltage generators enabling erase/program without external VPP.

It supports three instruction modes: standard single-I/O (e.g., Read Data 03h), Fast Read Dual Output (3Bh), and Fast Read Dual I/O (BBh), with auto-increment addressing and Continuous Read Mode reducing instruction overhead for XIP-capable sequential access. All erase operations (sector/32KB block/64KB block/chip) are internally timed and verified.

Key Specifications

Pinout & Package

W25X10BVSNIG is packaged in an 8-pin SOIC 150-mil (package code SN), with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC compliance. The body dimensions are 3.90 mm × 4.90 mm × 1.75 mm (L × W × H).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash memory applications.

Compared with AT25DF041A-SSHN-B, W25X10BVSNIG provides higher bandwidth via Dual I/O and tighter sector granularity; versus S25FL032P0XMFI001, it maintains pin compatibility and lower power (1µA vs. 5µA deep power-down) at the cost of density.

Availability

W25X10BVSNIG is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration logging, and automotive body control module boot code requiring stable component supply, long-lifecycle support, and SOIC-150-mil footprint compatibility.

Supply support for W25X10BVSNIG 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 DRAM, mobile DRAM, and serial flash memory solutions since 1987.

The W25X series was designed specifically for cost-sensitive, space-constrained embedded systems requiring reliable code storage, fast read performance, and flexible hardware/software write protection-targeting consumer, industrial, and automotive applications.

FAQ

What is the exact memory organization of the W25X10BVSNIG?

The W25X10BVSNIG contains 1 M-bit (131,072 bytes) of NOR flash memory, organized into 512 programmable pages of 256 bytes each and 32 uniform 4KB erasable sectors. Its address space spans 000000h to 01FFFFh, with sector boundaries aligned every 4KB (e.g., Sector 0: 000000h–000FFFh). This structure is confirmed in the "General Description" and "Block Diagram" sections of the August 2009 datasheet.

Does the W25X10BVSNIG support Quad SPI mode?

No, the W25X10BVSNIG does not support Quad SPI. It supports only Standard SPI (single I/O), Fast Read Dual Output (3Bh), and Fast Read Dual I/O (BBh) modes, as explicitly stated in Section 1 ("General Description") and Section 2 ("Features"). Quad SPI capability was introduced in later Winbond families (e.g., W25Q series), not the W25X BV generation.

What is the function of the /HOLD pin on the W25X10BVSNIG?

The /HOLD pin on the W25X10BVSNIG pauses ongoing SPI transactions while /CS remains asserted (low), placing DO in high-impedance state and ignoring CLK/DIO signals. This allows safe bus sharing with other SPI peripherals-e.g., during interrupt-driven priority transfers-without resetting internal state. Its behavior is fully defined in Section 6.5 and Section 8.1.3 of the datasheet.

How is write protection implemented on the W25X10BVSNIG?

W25X10BVSNIG implements layered write protection: hardware-level via the active-low /WP pin (locking status register writes when SRP=1), software-level via Block Protect (BP2–BP0) and Top/Bottom (TB) bits in the status register, and instruction-level via Write Enable/Disable commands. These mechanisms are detailed in Sections 8.2 and 9.1.3–9.1.6, with factory defaults of BP2–BP0=000 and SRP=0.

Is the W25X10BVSNIG RoHS compliant and halogen-free?

Yes, the W25X10BVSNIG is RoHS compliant and halogen-free. This is confirmed by Winbond's official product change notices and packaging documentation for the SN (SOIC-150-mil) variant, which states compliance with JEDEC J-STD-609A Class 1 for moisture sensitivity and IPC/JEDEC J-STD-020D for lead-free reflow, consistent with RoHS Directive 2011/65/EU and IEC 61249-2-21:2012.