Winbond Electronics Corporation W25N01GVSFIG TR

Overview

W25N01GVSFIG TR from Winbond is a 1G-bit (128MB) Serial SLC NAND Flash Memory with Dual/Quad SPI interface, organized into 65,536 pages of 2,048 bytes each and 1,024 uniform 128KB erasable blocks. It supports 104MHz SPI clocking, delivers up to 50MB/s continuous read throughput in Continuous Read Mode, and operates from 2.7V–3.6V with 25mA active and 10µA standby current. It is used for code shadowing, XIP execution, and firmware/data storage in space-constrained embedded systems.

For engineers reviewing the W25N01GVSFIG TR datasheet, W25N01GVSFIG TR pinout, W25N01GVSFIG TR application, or W25N01GVSFIG TR equivalent, key selection considerations include its BUF=1 default power-up mode (Buffer Read), on-chip 1-bit ECC, hardware/software write protection via /WP and /HOLD, JEDEC ID support, and compatibility with standard, dual, and quad I/O SPI command sets.

Technical Context

The W25N01GVSFIG TR implements a serial SLC NAND architecture with internal 2,048-byte page buffer and configurable read modes: Buffer Read (default at power-up) and Continuous Read (enabled by clearing BUF bit in Status Register-2). Its command set includes standard SPI instructions plus extended dual/quad I/O variants supporting up to 416MHz equivalent bandwidth via Quad I/O Fast Read.

It integrates volatile and OTP-configurable registers for block protection (BP3–BP0, TB), ECC enable (ECC-E), buffer mode control (BUF), and OTP access (OTP-E, OTP-L). Hardware write protection is activated when WP-E=1, disabling all program/erase operations and quad reads; /WP then functions as dedicated active-low protect input rather than I/O2.

Key Specifications

Pinout & Package

W25N01GVSFIG TR is packaged in an 8-pad WSON 8×6-mm (package code ZE), with exposed thermal pad. This RoHS-compliant, surface-mount package supports automated reflow assembly and provides optimal signal integrity for high-speed SPI interfaces.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NAND flash applications.

Compared with MX35LF1GE4AB, W25N01GVSFIG TR delivers higher bandwidth and integrated ECC; compared with MT29F1G01ABAGDWB-IT, it eliminates NAND controller dependency and reduces BOM count via SPI simplicity - making it optimal for MCU-based edge devices.

Availability

W25N01GVSFIG TR is available at Aetrix Electronics and suitable for industrial HMI, medical diagnostics, smart metering, automotive telematics, and embedded IoT gateway applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for W25N01GVSFIG TR 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 global semiconductor manufacturer specializing in specialty memory solutions, including NOR/NAND flash, SRAM, and mobile DRAM.

The W25N SpiFlash family was designed to bring NAND density and cost-efficiency to SPI-based microcontroller platforms - bridging the gap between traditional SPI NOR and parallel NAND in resource-constrained embedded systems.

FAQ

What is the default read mode for W25N01GVSFIG TR at power-up?

The W25N01GVSFIG TR powers up in Buffer Read Mode (BUF = 1) by default, meaning each page read requires an explicit "Page Data Read" instruction before accessing data. This behavior is defined in the Configuration Register (Status Register-2) and differs from the Continuous Read Mode (BUF = 0), which allows seamless sequential access across pages with a single Read command.

Does W25N01GVSFIG TR support Quad SPI commands, and what pins are used?

Yes, W25N01GVSFIG TR supports Quad SPI commands including Fast Read Quad I/O (EBh) and Quad Load Program Data (32h). It uses IO0 (DI), IO1 (DO), IO2 (/WP), and IO3 (/HOLD) as bidirectional data lines - but only when WP-E = 0. When WP-E = 1, /WP and /HOLD become dedicated control inputs and Quad SPI is disabled.

How does hardware write protection work on W25N01GVSFIG TR?

Hardware write protection on W25N01GVSFIG TR is activated by setting WP-E = 1 in the Protection Register and grounding the /WP pin. This disables all program, erase, and status register write operations - rendering the entire memory array, OTP pages, and registers read-only. Quad SPI read commands are also blocked in this mode to prevent unauthorized data extraction.

What is the purpose of the BBM Look-Up Table in W25N01GVSFIG TR?

The BBM Look-Up Table (LUT) in W25N01GVSFIG TR stores addresses of factory-marked and field-detected invalid blocks. Host firmware accesses it via the A5h instruction to identify defective regions before programming. This eliminates the need for external bad-block scanning logic and ensures deterministic wear leveling across the 1,024-block array.

Can W25N01GVSFIG TR be used for Execute-in-Place (XIP) applications?

Yes, W25N01GVSFIG TR supports XIP via Dual/Quad SPI Fast Read instructions (e.g., 3Bh, 6Bh, EBh), enabling direct code execution from flash without shadowing to RAM. Its 104MHz clock and 50MB/s continuous read rate in Continuous Read Mode make it suitable for real-time firmware execution in Cortex-M and RISC-V microcontrollers.