Winbond Electronics Corporation W25Q128FVCJF TR

Overview

W25Q128FVCJF TR from Winbond is a 128M-bit (16MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at up to 104MHz clock frequency with 50MB/s continuous read throughput, 4KB uniform sector erase granularity, and single 2.7–3.6V supply - deployed for code storage, XIP execution, and firmware parameter retention in embedded microcontrollers and IoT edge devices.

For engineers reviewing the W25Q128FVCJF TR datasheet, W25Q128FVCJF TR pinout, W25Q128FVCJF TR application, or W25Q128FVCJF TR equivalent, key selection criteria include Quad Enable (QE) bit configuration, /HOLD vs /RESET pin behavior per package variant, 4KB sector protection granularity, and JEDEC SFDP register compatibility for auto-configuration.

Technical Context

The W25Q128FVCJF TR implements a 65,536-page (256-byte/page) memory array with four erase granularities: 4KB sector, 32KB block, 64KB block, and full chip. It supports volatile/non-volatile status register bits including Quad Enable (QE), Write Protect Selection (WPS), and HOLD/RST function control - enabling dynamic reconfiguration of IO2 (/WP) and IO3 (/HOLD or /RESET) pins in Quad SPI mode.

Its instruction set includes Fast Read Quad I/O (EBh), Word Read Quad I/O (E7h), and QPI mode entry (38h) with 2-clock-cycle instruction decoding, reducing overhead for high-speed sequential access. Erase/program suspend/resume (75h/7Ah) allows interleaving background operations with foreground reads.

Key Specifications

Pinout & Package

W25Q128FVCJF TR uses an 8-pin WSON 6×5-mm package (Package Code P), with exposed pad for thermal dissipation and no internal heatsink requirement. Pin functions are shared across SPI modes, with /WP and /HOLD repurposed as IO2 and IO3 when Quad Enable (QE) is active.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L12833FZC-10G and S25FL128SAGMFI000, the W25Q128FVCJF TR offers balanced performance with QPI acceleration, JEDEC SFDP auto-discovery, and flexible /HOLD–/RESET multiplexing - making it optimal for cost-sensitive, space-constrained industrial and IoT designs requiring firmware agility and security.

Availability

W25Q128FVCJF TR is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, IoT gateways, medical diagnostics equipment, and consumer electronics requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for W25Q128FVCJF 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 manufacturer specializing in specialty DRAM, mobile DRAM, and serial flash memory solutions since 1987.

The W25Q series targets embedded systems requiring high-speed, low-power, secure non-volatile storage - designed specifically for code shadowing, XIP execution, and firmware update resilience in resource-constrained environments.

FAQ

What is the package type and footprint of W25Q128FVCJF TR?

W25Q128FVCJF TR uses an 8-pin WSON 6×5-mm package (Package Code P) with exposed thermal pad. It has a 0.5 mm pitch, 2.1 mm × 1.9 mm body size, and complies with JEDEC MO-241AC. The footprint requires solder mask defined pads and stencil-applied solder paste per IPC-7351B.

Does W25Q128FVCJF TR support hardware reset, and how is it implemented?

W25Q128FVCJF TR does not include a dedicated /RESET pin. In its 8-pin WSON package, pin 7 functions as /HOLD or /RESET depending on the HOLD/RST bit in Status Register-3 - but only when Quad Enable (QE) = 0. When QE = 1, that pin becomes IO3, disabling both /HOLD and /RESET functionality. For guaranteed hardware reset, use the 16-pin SOIC variant (W25Q128FVFIQ).

How is Quad SPI mode enabled on W25Q128FVCJF TR?

Quad SPI mode on W25Q128FVCJF TR is enabled by setting the Quad Enable (QE) bit (bit 1 of Status Register-2) to '1' using instruction 31h. Once set, pins /WP and /HOLD become IO2 and IO3 respectively. The QE bit can be configured as volatile (cleared on power-up) or non-volatile (retained after power cycle) depending on SRP0/SRP1 settings.

What is the purpose of the 64-bit Unique ID in W25Q128FVCJF TR?

The 64-bit Unique ID in W25Q128FVCJF TR is factory-programmed and read-only via instruction 4Bh. It provides cryptographically verifiable device identity for secure boot binding, firmware licensing, anti-counterfeiting, and field unit traceability - each W25Q128FVCJF TR carries a globally unique value never repeated across Winbond's production.

Can W25Q128FVCJF TR be used for Execute-in-Place (XIP) applications?

Yes, W25Q128FVCJF TR supports true XIP via Continuous Read Mode and Fast Read Quad I/O (EBh) instructions. With as few as 8 clocks to initiate address fetch and 416 MHz effective bandwidth in Quad mode, it delivers deterministic latency for direct CPU instruction fetch - validated in ARM Cortex-M and RISC-V SoC reference designs with cache coherency maintained.