Winbond Electronics Corporation W25Q128BVFJP

Overview

W25Q128BVFJP from Winbond is a 128M-bit (16MB) serial NOR flash memory with Dual/Quad SPI interface, organized into 65,536 pages of 256 bytes each and supporting 4KB sector, 32KB block, 64KB block, and chip erase. It operates on a single 2.7–3.6V supply, draws 4mA active current and <1µA in power-down mode, and delivers up to 35MB/s continuous read throughput via Fast Read Quad I/O (EBh). It is used for code shadowing, XIP execution, and firmware storage in embedded microcontrollers.

For engineers reviewing the W25Q128BVFJP datasheet, W25Q128BVFJP pinout, W25Q128BVFJP application, or W25Q128BVFJP equivalent, key selection considerations include Quad SPI timing compliance (70MHz clock, 280MHz equivalent), hardware write protection via /WP and /HOLD pins, JEDEC ID and SFDP register support, and compatibility with standard, dual, and quad SPI instruction sets including suspend/resume functionality.

Technical Context

The W25Q128BVFJP implements a flexible SPI command architecture supporting Standard (Mode 0/3), Dual Output/I/O, and Quad Output/I/O protocols - with IO0–IO3 enabled only when the non-volatile Quad Enable (QE) bit in Status Register-2 is set. Its internal block diagram integrates a 256-byte page buffer, sector/block erase logic, security registers (3×256-byte OTP-locked), and SFDP register for discoverable parameters.

It features programmable write protection using both software (BP2–BP0, TB, SEC, CMP, SRP0/SRP1) and hardware (/WP pin active-low) methods, plus /HOLD pin for bus arbitration during active selection. Erase/program suspend and resume (75h/7Ah) enable interrupt handling without data corruption, and a 64-bit unique serial number supports device traceability.

Key Specifications

Pinout & Package

W25Q128BVFJP uses the 8-pad WSON 8×6-mm package (Package Code E), surface-mount, lead-free, moisture-sensitive level 3. Pin functions are defined for Standard/Dual SPI and reconfigured for Quad SPI when QE=1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L12833F and S25FL128S, the W25Q128BVFJP offers optimal balance of Quad SPI speed (70 MHz), integrated SFDP, ultra-low power-down current (<1 µA), and compact WSON packaging - making it especially suitable for space-constrained, battery-aware, and auto-configuring embedded designs.

Availability

W25Q128BVFJP is available at Aetrix Electronics and suitable for industrial HMI, automotive ADAS, IoT gateway, medical device, and consumer electronics applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.

Supply support for W25Q128BVFJP 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 W25Q series was designed specifically for embedded systems needing high-speed, low-power, and secure code/data storage with seamless SPI protocol interoperability - targeting microcontroller-based applications from wearables to automotive control units.

FAQ

What is the package type and footprint of the W25Q128BVFJP?

The W25Q128BVFJP uses an 8-pad WSON (Wafer-Level Small Outline No-Lead) package measuring 8 mm × 6 mm with exposed pad. It is RoHS-compliant, halogen-free, and rated at Moisture Sensitivity Level 3. The pinout matches Winbond's standard WSON layout for the W25Q128BV family, enabling drop-in replacement within same-package variants.

Does the W25Q128BVFJP support execute-in-place (XIP) operation?

Yes, the W25Q128BVFJP supports true XIP via Fast Read Quad I/O (instruction EBh) and Continuous Read Mode, achieving ≤8-clock instruction overhead for address setup. This enables direct code execution from flash by compatible microcontrollers (e.g., STM32, NXP i.MX RT, Renesas RA), reducing external RAM dependency and boot latency.

How is Quad SPI mode enabled on the W25Q128BVFJP?

Quad SPI mode is enabled by setting the Quad Enable (QE) bit in Status Register-2 using the Write Status Register (01h) instruction. Once QE = 1, the /WP and /HOLD pins become IO2 and IO3 respectively. The change is non-volatile and persists across power cycles unless explicitly cleared.

What write protection mechanisms does the W25Q128BVFJP provide?

The W25Q128BVFJP provides layered write protection: hardware via the active-low /WP pin (locks status register), software via BP2–BP0, TB, SEC, and CMP bits, and non-volatile SRP0/SRP1 bits that lock protection configuration. All methods can be combined to protect individual 4KB sectors or the entire array.

Is the W25Q128BVFJP compatible with JEDEC-standard identification and configuration?

Yes, the W25Q128BVFJP fully complies with JEDEC standards: it responds to Read JEDEC ID (9Fh), supports Manufacturer/Device ID reads (90h/92h/94h), and implements the SFDP register (5Ah) per JESD216B. This enables automatic detection and configuration by modern boot ROMs and flash programming tools.