Winbond Electronics Corporation W25Q64FVTBIP

Overview

W25Q64FVTBIP from Winbond is a 64M-bit (8MB) serial NOR flash memory IC designed for code storage and execution in space-constrained embedded systems. It supports Standard/Dual/Quad SPI and QPI interfaces, delivers up to 104 MHz clock rate (416 MHz equivalent Quad I/O), operates from 2.7V–3.6V, and features 4KB uniform sectors, 20-year data retention, and hardware write protection. It is used for XIP boot code storage in microcontroller-based IoT edge nodes.

For engineers reviewing the W25Q64FVTBIP datasheet, W25Q64FVTBIP pinout, W25Q64FVTBIP application, or W25Q64FVTBIP equivalent, key selection criteria include Quad SPI timing compliance, sector-erase flexibility for firmware OTA updates, JEDEC ID and SFDP register support for auto-configuration, and TFBGA-24 package compatibility with high-density PCB layouts.

Technical Context

The W25Q64FVTBIP implements a multi-mode serial interface controller supporting SPI Mode 0/3, Dual I/O, Quad I/O, and QPI protocols - all selectable via instruction set and QE bit configuration. Its internal architecture includes a 256-byte page buffer, sector/block erase logic with suspend/resume capability, and three 256-byte security registers with OTP locks.

It integrates hardware-level write protection using /WP and /HOLD pins (active-low), configurable via Status Register BP/TB/SEC bits and SRP lock bits. The device uses internal high-voltage generators for erase/program operations and supports continuous read mode with wrap lengths of 8/16/32/64 bytes - enabling true execute-in-place (XIP) operation without external buffering.

Key Specifications

Pinout & Package

W25Q64FVTBIP is packaged in a 24-ball TFBGA 8×6 mm (package code TB) with 5×5 ball array. Pin functions are defined per ball position; no NC balls are assigned to signal roles.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q64FVTBIP, MX25L6433FZNI-10G offers simpler SPI-only integration but sacrifices QPI efficiency and configurability, while S25FL164K0XMFI010 trades peak throughput for built-in ECC - making W25Q64FVTBIP optimal for high-speed, flexible, standards-compliant embedded code storage.

Availability

W25Q64FVTBIP is available at Aetrix Electronics and suitable for industrial HMI, automotive ADAS bootloaders, and medical diagnostic device designs requiring stable component supply, long lifecycle assurance, and TFBGA-24 footprint compatibility.

Supply support for W25Q64FVTBIP 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 memory solutions, including serial NOR/NAND flash, RAM, and mobile DRAM.

The W25Q series targets embedded systems requiring high-speed, secure, and flexible code storage - optimized for XIP, OTA updates, and industrial temperature operation with robust data integrity features.

FAQ

What is the package type and ball count for W25Q64FVTBIP?

W25Q64FVTBIP uses a 24-ball TFBGA package measuring 8 mm × 6 mm with a 5×5 ball array (package code TB). It is distinct from other variants like ZP (WSON 6×5 mm) or SF (16-pin SOIC), and its pinout is defined per ball position - B2=CLK, B3=GND, B4=VCC, C2=/CS, C4=/WP(IO2), D2=DO(IO1), D3=DI(IO0), D4=/HOLD(IO3).

Does W25Q64FVTBIP support execute-in-place (XIP) operation?

Yes, W25Q64FVTBIP supports true XIP via Continuous Read Mode with wrap lengths of 8/16/32/64 bytes and Quad SPI or QPI interfaces. Its 104 MHz clock (416 MB/s effective) and low instruction overhead enable deterministic code fetch latency - verified in ARM Cortex-M and RISC-V SoC reference designs using W25Q64FVTBIP as primary boot memory.

How does hardware write protection work on W25Q64FVTBIP?

W25Q64FVTBIP implements dual-layer hardware write protection: (1) the /WP pin (ball C4) disables Status Register writes when low (if QE=0), and (2) non-volatile BP/TB/SEC bits in Status Register-1 define protected memory ranges (4KB sectors to full array). Both layers must be configured correctly to lock bootloader regions - a common practice in automotive and medical firmware partitions.

What is the role of the QE bit in W25Q64FVTBIP's Status Register-2?

The Quad Enable (QE) bit in Status Register-2 controls pin multiplexing: when QE=0, balls C4 and D4 function as /WP and /HOLD respectively; when QE=1, they become IO2 and IO3 for Quad SPI/QPI operation. QE is non-volatile and must be set via Write Status Register (01h) instruction - failure to set it prevents Quad mode activation even with correct command sequences.

Can W25Q64FVTBIP be used in automotive applications?

W25Q64FVTBIP is rated for -40°C to +85°C operation and supports AEC-Q100 stress testing per Winbond qualification reports. Its hardware write protection, 64-bit unique ID, and OTP-locked security registers make it suitable for ASIL-B bootloader storage in ADAS ECUs - provided system-level functional safety requirements (e.g., error detection, redundancy) are implemented in the host MCU firmware.