Winbond Electronics Corporation W25Q64FVZPJQ TR

Overview

W25Q64FVZPJQ TR from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, operating at up to 104 MHz clock frequency with 50 MB/s continuous read throughput, organized into 32,768 × 256-byte pages and 2,048 uniform 4KB sectors - used for code storage, XIP execution, and firmware parameter retention in embedded microcontroller systems.

For engineers reviewing the W25Q64FVZPJQ TR datasheet, W25Q64FVZPJQ TR pinout, W25Q64FVZPJQ TR application, or W25Q64FVZPJQ TR equivalent, key selection criteria include quad I/O support with QE bit enablement, hardware write protection via /WP and /HOLD pins, JEDEC ID and SFDP register compliance, and compatibility with industrial temperature range (-40°C to +85°C) designs requiring >100,000 program/erase cycles and 20-year data retention.

Technical Context

The W25Q64FVZPJQ TR implements a multi-mode serial interface: Standard SPI uses unidirectional DI/DO; Dual/Quad SPI repurposes pins as bidirectional IO0–IO3 upon Quad Enable (QE) bit setting in Status Register-2; QPI mode enables 2-clock instruction cycle operation with reduced overhead. All modes share the same CLK, /CS, and power domain.

Its internal architecture includes a 256-byte page buffer, sector/block erase logic (4KB/32KB/64KB), three 256-byte security registers with OTP locks, and dual status registers with volatile/non-volatile bits for BP, TB, SEC, CMP, SRP, and SUS control - enabling fine-grained memory protection and suspend/resume during erase/program operations.

Key Specifications

Pinout & Package

W25Q64FVZPJQ TR is packaged in an 8-pin SOIC 208-mil (package code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD (IO3), pin 8 = VCC. Pin functions are mode-dependent: /WP and /HOLD become IO2 and IO3 respectively when Quad Enable (QE) bit is set.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q64FVZPJQ TR, MX25L6433FZNI-10G offers simpler command compatibility but sacrifices QPI efficiency and SFDP-driven initialization, while S25FL164K0XMFI010 adds ECC and Octal DTR at the cost of higher pin count and voltage requirements - making W25Q64FVZPJQ TR optimal for cost-sensitive, space-constrained industrial and medical designs needing balanced performance, security, and configurability.

Availability

W25Q64FVZPJQ TR is available at Aetrix Electronics and suitable for industrial HMI firmware storage, automotive ADAS boot code, and IoT edge node OTA storage requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across manufacturing lots.

Supply support for W25Q64FVZPJQ 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 serial flash, mobile DRAM, and code storage products for embedded and industrial markets.

The W25Q64FV series belongs to Winbond's SpiFlash family, designed specifically for code execution, firmware storage, and secure parameter retention in resource-constrained microcontroller-based systems demanding high reliability and low power.

FAQ

What interface modes does the W25Q64FVZPJQ TR support, and how is Quad SPI enabled?

The W25Q64FVZPJQ TR supports Standard SPI, Dual SPI, Quad SPI, and QPI. Quad SPI operation requires setting the Quad Enable (QE) bit in Status Register-2 using the Write Status Register (01h) instruction. Once QE=1, pins /WP and /HOLD become IO2 and IO3, enabling four-line data transfer. The W25Q64FVZPJQ TR datasheet specifies that QE is non-volatile and persists across power cycles unless explicitly cleared.

Does the W25Q64FVZPJQ TR support execute-in-place (XIP) operation, and what conditions are required?

Yes, the W25Q64FVZPJQ TR supports true XIP via Continuous Read Mode and QPI. It requires host MCU SPI controller support for wrap-length configuration (8/16/32/64 bytes) and proper timing alignment. The W25Q64FVZPJQ TR achieves this with only 8 clocks of instruction overhead per memory access and sustained 50 MB/s throughput - eliminating need for RAM shadowing in many real-time applications.

How is hardware write protection implemented on the W25Q64FVZPJQ TR?

Hardware write protection on the W25Q64FVZPJQ TR uses the /WP pin (active-low) in conjunction with status register bits BP2–BP0, TB, SEC, and CMP. When /WP is held low and Block Protect bits are set, writes to corresponding memory regions are blocked. Protection granularity ranges from single 4KB sectors to full array. Note that /WP functionality is disabled when QE=1, as the pin becomes IO2.

What is the purpose and structure of the Security Registers in the W25Q64FVZPJQ TR?

The W25Q64FVZPJQ TR includes three 256-byte Security Registers, each independently lockable via OTP fuses. These registers store sensitive data such as cryptographic keys, calibration coefficients, or device-specific identifiers - physically isolated from main memory array and inaccessible via standard read commands unless unlocked. Their use is documented in W25Q64FVZPJQ TR application notes for secure boot and anti-cloning implementations.

Is the W25Q64FVZPJQ TR compatible with JEDEC-standard SFDP, and how is it used?

Yes, the W25Q64FVZPJQ TR implements JEDEC JESD216-compliant SFDP (Serial Flash Discoverable Parameters) in a dedicated register accessible via instruction 5Ah. This allows host bootloaders to automatically detect timing parameters, erase block sizes, and feature flags without hardcoded values - simplifying portability across W25Q64FVZPJQ TR revisions and reducing firmware maintenance effort.