Winbond Electronics Corporation W25Q16DVZPIG

Overview

W25Q16DVZPIG from Winbond is a 16 M-bit (2 MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 104 MHz clock capability, 4 KB uniform sector erase granularity, and XIP-capable continuous read mode - deployed in embedded boot code storage, firmware update partitions, and parameter retention in industrial microcontroller systems.

For engineers reviewing the W25Q16DVZPIG datasheet, W25Q16DVZPIG pinout, W25Q16DVZPIG application, or W25Q16DVZPIG equivalent, key selection criteria include Quad SPI enable (QE bit), 4 KB sector protection granularity, 2.7–3.6 V single-supply operation, and compatibility with SPI Mode 0/3 timing for MCU host interface integration.

Technical Context

The W25Q16DVZPIG implements a SPI-compatible command set with hardware- and software-based write protection, including top/bottom block protect bits (TB, BP2–BP0), security register locks (LB3–LB1), and volatile/non-volatile status register control. Its architecture supports erase/program suspend/resume for concurrent background operations.

It features JEDEC-standard manufacturer/device ID (9Fh), 64-bit unique serial number (4Bh), SFDP register (5Ah) for discoverable parameters, and configurable Quad Enable (QE) bit in Status Register-2 - enabling IO2 (/WP) and IO3 (/HOLD) reassignment only when QE=1, preserving hardware write-protect functionality in standard/Dual SPI modes.

Key Specifications

Pinout & Package

W25Q16DVZPIG uses an 8-pad WSON 6×5 mm package (package code ZP), with exposed pad for thermal dissipation and no internal heatsink requirement in typical PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q16DVZPIG, MX25L1606EZN-12G offers lower cost but sacrifices Quad SPI throughput and security features, while S25FL116K0XMFI011 adds reset control at the expense of /HOLD pin availability - making W25Q16DVZPIG optimal for balanced performance, flexibility, and feature completeness in resource-constrained embedded designs.

Availability

W25Q16DVZPIG is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ECU boot code, medical device parameter retention, IoT edge node OTA storage, and consumer electronics BIOS/UEFI modules requiring stable component supply across multi-year production cycles.

Supply support for W25Q16DVZPIG 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 SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.

The W25Q series was designed to replace parallel NOR flash in space-constrained embedded systems, delivering high-speed Quad SPI performance, robust security features, and industrial-grade reliability for code storage and firmware update applications.

FAQ

What is the package type and lead count of W25Q16DVZPIG?

W25Q16DVZPIG uses an 8-pad WSON 6×5 mm package (ZP code) with gull-wing leads and an exposed thermal pad. It has no leads in the traditional sense - the eight copper pads serve as electrical and thermal interfaces, requiring solder paste stencil design per IPC-7351B for reliable reflow attachment.

Does W25Q16DVZPIG support execute-in-place (XIP) operation?

Yes, W25Q16DVZPIG supports true XIP via its Continuous Read Mode, which reduces instruction overhead to as few as 8 clock cycles per address access. When paired with a host MCU that supports external memory mapping (e.g., ARM Cortex-M7 with FMC), W25Q16DVZPIG enables direct code execution without copying to RAM.

How is Quad SPI enabled on W25Q16DVZPIG?

Quad SPI is enabled on W25Q16DVZPIG by 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 respectively - this change is non-volatile and persists across power cycles unless explicitly cleared.

What write protection mechanisms does W25Q16DVZPIG provide?

W25Q16DVZPIG provides layered write protection: hardware-level via active-low /WP pin (when QE=0), software-level via Block Protect (BP2–BP0), Top/Bottom (TB), Sector Protect (SEC), and Complement Protect (CMP) bits, plus OTP-locked security registers. All protections are configurable independently per 4 KB sector.

Is W25Q16DVZPIG compatible with SPI Mode 3 (CPOL=1, CPHA=1)?

Yes, W25Q16DVZPIG fully supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1). The device samples input on the falling edge and drives output on the rising edge in Mode 3, matching standard MCU SPI peripherals such as STM32 and NXP Kinetis without protocol translation.