Winbond Electronics Corporation W25Q16JVUUIQ TR

Overview

W25Q16JVUUIQ TR from Winbond is a 16 Mbit (2 MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with up to 133 MHz clock frequency, 4 KB uniform sector architecture, and hardware/software write protection. It operates from 2.7–3.6 V, consumes <1 µA in power-down mode, and targets embedded boot code storage and XIP execution in space-constrained industrial and consumer systems.

For engineers reviewing the W25Q16JVUUIQ TR datasheet, W25Q16JVUUIQ TR pinout, W25Q16JVUUIQ TR application, or W25Q16JVUUIQ TR equivalent, key selection considerations include Quad SPI timing compliance (QE bit configuration), /HOLD vs. /RESET pin availability per package, 4 KB sector erase granularity, JEDEC ID and SFDP register support, and OTP-locked security register capability.

Technical Context

The W25Q16JVUUIQ TR implements a flexible SPI-compatible interface with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where Quad mode requires non-volatile QE bit = 1 in Status Register-2. Its memory array comprises 8,192 × 256-byte pages organized into 512 erasable 4 KB sectors and 32 erasable 64 KB blocks.

It integrates volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP, SRP, WPS), three 256-byte one-time-programmable (OTP) security registers, and a 64-bit unique ID. Write protection combines hardware (/WP pin active-low), software (status register bits), and individual block/sector lock mechanisms - all configurable without external components.

Key Specifications

Pinout & Package

W25Q16JVUUIQ TR uses an 8-pin USON 2×3 mm package (Package Code UX), with exposed pad for thermal dissipation and no internal die attach pad. Pin functions are identical across SOIC, WSON, XSON, and USON variants per datasheet Section 3.3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L1606EZUI-12G and S25FL116K0XMFI011, W25Q16JVUUIQ TR delivers higher throughput (133 MHz vs ≤104 MHz), integrated SFDP for plug-and-play initialization, and dedicated OTP security registers - making it optimal for new designs requiring XIP, secure boot, and future-proof configurability.

Availability

W25Q16JVUUIQ TR is available at Aetrix Electronics and suitable for industrial PLCs, IoT edge gateways, medical displays, automotive HMIs, and consumer electronics requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for W25Q16JVUUIQ 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, serial flash, and mobile DRAM solutions since 1987.

The W25Q series was designed for high-reliability embedded systems requiring fast, secure, and space-efficient code and data storage - with emphasis on Quad SPI performance, robust write protection, and industrial temperature operation.

FAQ

What is the package type and lead count of W25Q16JVUUIQ TR?

W25Q16JVUUIQ TR uses an 8-pin USON (Ultra Thin Small Outline No-lead) package measuring 2 mm × 3 mm × 0.6 mm (Package Code UX). It has no leads - solder pads are located on the bottom perimeter, and the package includes an exposed thermal pad. This compact footprint supports high-density PCB layouts in portable and space-constrained applications.

Does W25Q16JVUUIQ TR support hardware reset via /RESET pin?

No, W25Q16JVUUIQ TR does not include a dedicated hardware /RESET pin. The /HOLD pin (Pin 7) serves as /HOLD in Standard/Dual SPI mode and becomes IO3 in Quad SPI mode when QE=1. Hardware reset is only available on SOIC-16 and TFBGA packages per Winbond documentation - the USON 2×3-mm variant relies solely on software reset (66h + 99h instructions).

How is Quad SPI mode enabled on W25Q16JVUUIQ TR?

Quad SPI mode on W25Q16JVUUIQ TR is enabled by setting the Quad Enable (QE) bit in Status Register-2. This bit is non-volatile and must be written using Write Status Register-2 (31h) instruction. Once QE=1, pins /WP (Pin 3) and /HOLD (Pin 7) become IO2 and IO3 respectively, allowing four-bit-wide data transfers using instructions like Fast Read Quad I/O (EBh).

What write protection mechanisms does W25Q16JVUUIQ TR provide?

W25Q16JVUUIQ TR provides layered write protection: hardware-level via active-low /WP pin, software-level via status register bits (BP2–BP0, TB, SEC, CMP), and OTP-level via individual block/sector lock bits. The WPS bit in Status Register-3 selects between status-register-based or individual-lock-based schemes. All methods operate concurrently and require explicit unlock sequences before modification.

Is W25Q16JVUUIQ TR compatible with JEDEC-standard SFDP?

Yes, W25Q16JVUUIQ TR fully supports the JEDEC JESD216 standard Serial Flash Discoverable Parameters (SFDP) register, accessible via instruction 5Ah. This enables automatic detection of memory size, erase block structure, timing parameters, and feature support - simplifying driver development and eliminating hardcoded configuration in host firmware.