Winbond Electronics Corporation W25Q257FVFIG TR

Overview

W25Q257FVFIG TR from Winbond is a 256M-bit (32MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at up to 104 MHz clock rate with 50 MB/s continuous read throughput. It features uniform 4KB sectors (8,192 total), 64KB blocks (512 total), 1–256-byte page programming, and supports execute-in-place (XIP) operation for embedded code storage and boot code execution in space-constrained systems.

For engineers reviewing the W25Q257FVFIG TR datasheet, W25Q257FVFIG TR pinout, W25Q257FVFIG TR application, or W25Q257FVFIG TR equivalent, key selection considerations include 4-byte addressing support, Quad Enable (QE) bit configuration, /HOLD vs /RESET pin behavior in WSON-8 vs SOIC-16 packages, and hardware write protection via /WP and status register BP bits.

Technical Context

The W25Q257FVFIG TR implements a flexible SPI-compatible command set with three address modes (3-byte default, 4-byte enabled via B7h/E9h), dual/quad I/O data paths requiring QE=1 in Status Register-2, and QPI mode entered via 38h instruction. Its architecture includes a 256-byte page buffer, sector/block/chip erase hierarchy, and volatile/non-volatile status register control over protection, driver strength, and HOLD/RESET function mapping.

It integrates JEDEC-compliant manufacturer/device ID (90h/9Fh), SFDP register (5Ah), 64-bit unique serial number (4Bh), and three 256-byte one-time-programmable (OTP) security registers. Power-down current is <1 µA (typ.), and it operates across –40°C to +85°C on a single 2.7–3.6 V supply.

Key Specifications

Pinout & Package

W25Q257FVFIG TR is supplied in an 8-pad WSON 8×6-mm package (Package Code E), with exposed thermal pad. Pin functions are defined per JEDEC MS-012AC and Winbond specification, and support both standard SPI and quad I/O operation depending on status register configuration.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L25735FMI-10G and S25FL256SAGMFI000, the W25Q257FVFIG TR offers broader interface flexibility (QPI + SFDP), higher sustained read bandwidth (50 MB/s), and finer-grained hardware protection - making it optimal for XIP-based embedded Linux and safety-certified firmware storage where configurability and performance are prioritized over on-die ECC.

Availability

W25Q257FVFIG TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, medical imaging configuration, and edge AI gateway firmware requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for W25Q257FVFIG 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 Corporation is a Taiwan-based semiconductor company specializing in specialty DRAM, mobile DRAM, and serial flash memory solutions since 1987.

The W25Q series is designed for high-performance, space-constrained embedded systems requiring reliable code storage, execute-in-place capability, and robust security features - targeting industrial, automotive, and medical applications with extended temperature and long-lifecycle requirements.

FAQ

What is the maximum clock frequency supported by W25Q257FVFIG TR in Quad SPI mode?

The W25Q257FVFIG TR supports up to 104 MHz clock frequency in Quad SPI mode. When using Fast Read Quad I/O (EBh) or Word Read Quad I/O (E7h), this yields an effective data transfer rate of 416 MB/s (104 MHz × 4 I/O lines). This value is specified under AC Electrical Characteristics (Section 9.6) and validated across –40°C to +85°C at VCC = 2.7–3.6 V.

Does W25Q257FVFIG TR support 4-byte addressing, and how is it enabled?

Yes, W25Q257FVFIG TR supports 4-byte addressing. It is enabled by issuing the Enter 4-Byte Address Mode instruction (B7h), which sets the ADP bit (bit 0 of Status Register-3) non-volatilely. The Exit 4-Byte Address Mode instruction (E9h) clears ADP. Both instructions require Write Enable (06h) first. The ADP bit defaults to 0 (3-byte mode) after power-up.

How does the /HOLD pin function differ between Standard SPI and Quad SPI operation on W25Q257FVFIG TR?

In Standard SPI (QE=0), /HOLD is an active-low pause control that places DO/IOx in high-impedance state while /CS remains low. In Quad SPI (QE=1), the /HOLD pin becomes IO3 - a bidirectional data line - and its hold function is disabled. This behavior is controlled solely by the QE bit in Status Register-2 and is independent of package type.

What packaging options are available for W25Q257FVFIG TR, and what is the meaning of 'FIG' in the part number?

W25Q257FVFIG TR is offered in 8-pad WSON 8×6-mm (Package Code E). The 'FIG' suffix denotes Industrial Grade (–40°C to +85°C), RoHS-compliant, halogen-free, and tape-and-reel packaging (TR). It does not indicate SOIC-16; that variant uses 'F' or 'FA' suffixes and includes a dedicated /RESET pin.

Can W25Q257FVFIG TR be used for execute-in-place (XIP) applications, and what conditions must be met?

Yes, W25Q257FVFIG TR supports true XIP operation. Required conditions: use of Continuous Read Mode (e.g., Fast Read Quad I/O EBh), 4-byte addressing enabled if memory map exceeds 16 MB, Quad Enable (QE=1) set in Status Register-2, and host controller capable of issuing wrap-mode read commands. Verified performance: ≤8 clock overhead per address setup enables deterministic instruction fetch timing.