Winbond Electronics Corporation W25N01JWSFIG TR

Overview

W25N01JWSFIG TR from Winbond is a 1.8V, 1G-bit Serial SLC NAND Flash memory with Dual/Quad SPI and DTR interface support, organized as 65,536 × 2,048-byte pages and 1,024 × 128KB erasable blocks. It delivers up to 80MB/s continuous read throughput in Continuous Read Mode (BUF=1 default), features on-chip 1-bit ECC, programmable write protection, and operates across –40°C to +85°C for embedded code storage and firmware update applications.

For engineers reviewing the W25N01JWSFIG TR datasheet, W25N01JWSFIG TR pinout, W25N01JWSFIG TR application, or W25N01JWSFIG TR equivalent, key selection criteria include its 166MHz STR / 80MHz DTR timing, buffer vs. continuous read mode behavior, WSON-8 package footprint, 100,000 program/erase cycles, and JEDEC-compliant ID/OTP/BBM register access.

Technical Context

The W25N01JWSFIG TR implements a standard SPI command set extended with Dual/Quad I/O and DTR modes, enabling address/data transfers on both clock edges. Its architecture supports two distinct read modes-Buffer Read (default at power-up) and Continuous Read-each with unique instruction sequences and timing requirements.

Internal management includes configurable ECC enablement (ECC-E bit), Bad Block Management via LUT access (A5h), Data Learning Pattern (DLP) for DTR optimization, and volatile/OTP-lockable status registers (SR1–SR4) governing write protection, quad enable, driver strength, and reset behavior.

Key Specifications

Pinout & Package

W25N01JWSFIG TR is packaged in an 8-pad WSON 8×6-mm (Package Code ZE) with wettable flank profile, suitable for automated optical inspection and high-density PCB layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar Serial NAND Flash applications.

Compared with MT29F1G08ABAEAH4-IT:E and GD5F1GQ4UCYIGR, the W25N01JWSFIG TR uniquely combines 166MHz STR + 80MHz DTR, on-chip ECC, and 100K-cycle endurance in a WSON-8 package - delivering higher bandwidth, lower system-level design effort, and longer field life for industrial firmware storage.

Availability

W25N01JWSFIG TR is available at Aetrix Electronics and suitable for industrial HMI firmware storage, edge gateway boot image hosting, medical device parameter logging, and automotive infotainment OS partitioning requiring stable component supply and long-term lifecycle assurance.

Supply support for W25N01JWSFIG 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 semiconductor company specializing in specialty memory solutions, including NOR/NAND flash, SRAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.

The W25N SpiFlash family targets space- and power-constrained embedded systems needing NAND density with SPI simplicity - designed specifically to replace parallel NAND and legacy SPI NOR in boot code and firmware storage roles.

FAQ

What is the default read mode for W25N01JWSFIG TR at power-up?

The W25N01JWSFIG TR powers up in Buffer Read Mode (BUF=1) as indicated by its "G" suffix. This mode uses the Read Data (03h) instruction and requires explicit Page Data Read (13h) before each new page access. Continuous Read Mode (BUF=0) is enabled by writing 0 to the BUF bit in Status Register-2 (Bxh), and is the default only for "T"-suffix variants.

Does W25N01JWSFIG TR support Quad SPI and DTR simultaneously?

Yes, W25N01JWSFIG TR supports Quad I/O with DTR in instructions such as DTR Fast Read Quad I/O (EDh). In this mode, both address and read data are transferred on both clock edges using all four I/O lines, achieving up to 640 Mbps effective bandwidth at 80 MHz DTR clock - confirmed in Section 8.2.35 of the datasheet.

How is Bad Block Management implemented in W25N01JWSFIG TR?

W25N01JWSFIG TR implements hardware-assisted BBM using a Look-Up Table (LUT) stored in dedicated reserved blocks. The A5h instruction reads the LUT contents, while A1h manages invalid block marking. This eliminates the need for host-based scanning and allows deterministic bad block replacement during program/erase operations.

What are the OTP capabilities of W25N01JWSFIG TR?

W25N01JWSFIG TR includes ten 2,048-byte One-Time Programmable (OTP) pages accessible only when OTP-E=1. Once programmed, OTP pages cannot be erased or rewritten. They are commonly used for storing cryptographic keys, calibration data, or secure boot parameters - verified in Sections 7.2.2 and 8.2.37 of the datasheet.

Is W25N01JWSFIG TR pin-compatible with other Winbond W25N family members?

W25N01JWSFIG TR shares identical pinout and package dimensions (WSON-8, ZE code) with other W25N01JW variants (e.g., W25N01JWSFIF TR, W25N01JWTAIG TR), enabling drop-in replacement within the same package type. However, functional differences - such as BUF default state, DTR support, or OTP page count - require firmware validation per variant.