Winbond Electronics Corporation W25Q16JVBYIQ TR

Overview

W25Q16JVBYIQ TR from Winbond is a 16 M-bit (2 MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with up to 133 MHz clock rate, 4 KB uniform sector architecture, and industrial temperature range (–40°C to +85°C). It enables XIP (execute-in-place) code execution, firmware storage, and parameter retention in space-constrained embedded systems.

For engineers reviewing the W25Q16JVBYIQ TR datasheet, W25Q16JVBYIQ TR pinout, W25Q16JVBYIQ TR application, or W25Q16JVBYIQ TR equivalent, key selection considerations include Quad SPI bandwidth (532 MHz equivalent), hardware /WP and /HOLD pins, JEDEC ID/SFDP compliance, 100K program-erase cycles per sector, and WLCSP-8 (BY) package compatibility with high-density PCB layouts.

Technical Context

The W25Q16JVBYIQ TR implements a flexible SPI interface with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where Quad mode requires non-volatile QE bit (Status Register-2) configuration. 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 for block protection (BP2–BP0, TB, SEC, CMP), write protection lock-down, erase/program suspend/resume, and three 256-byte OTP-locked security registers. The /HOLD pin supports multi-device bus arbitration in Standard/Dual mode but functions as IO3 in Quad mode; hardware /RESET is not present in WLCSP-8 (BY) package.

Key Specifications

Pinout & Package

W25Q16JVBYIQ TR uses an 8-ball WLCSP (Wafer-Level Chip-Scale Package) with 0.4 mm pitch, marked "BY" per Winbond ordering codes. This package provides minimal footprint (2.1 × 2.1 mm) and low profile (0.45 mm max height), optimized for high-density portable and IoT applications.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, W25Q16JVBYIQ TR uniquely combines WLCSP-8 packaging, 133 MHz Quad SPI, JEDEC SFDP, and 64-bit UID in a single industrial-grade device-enabling compact, secure, and auto-configurable firmware storage without layout or driver overhaul.

Availability

W25Q16JVBYIQ TR is available at Aetrix Electronics and suitable for industrial PLCs, IoT edge nodes, medical UIs, automotive ADAS modules, and portable instrumentation requiring stable component supply, long-term lifecycle support, and validated WLCSP-8 sourcing.

Supply support for W25Q16JVBYIQ 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 global semiconductor manufacturer specializing in specialty DRAM, mobile DRAM, and serial flash memory solutions since 1987.

The W25Q series targets high-performance, space-constrained embedded systems requiring reliable code storage, XIP capability, and advanced security-designed specifically for industrial, automotive, and networking applications demanding robustness and feature-rich SPI interfaces.

FAQ

Does W25Q16JVBYIQ TR support hardware reset via /RESET pin?

No, W25Q16JVBYIQ TR does not include a dedicated hardware /RESET pin. The /HOLD pin (B1) serves only as a hold signal in Standard/Dual mode and functions as IO3 in Quad mode. Hardware reset is available only on SOIC-16 and TFBGA packages-not on the WLCSP-8 (BY) variant. System-level reset must be implemented via software sequence (66h + 99h) or power-cycle.

What is the exact package dimension and ball pitch of W25Q16JVBYIQ TR?

W25Q16JVBYIQ TR uses an 8-ball WLCSP package with dimensions of 2.1 mm × 2.1 mm and a ball pitch of 0.4 mm. The package height is ≤0.45 mm, and the top-side marking includes "BY" per Winbond's ordering code specification. This matches the "Package Code BY" defined in Section 11.8 of the datasheet.

Can W25Q16JVBYIQ TR operate in Quad SPI mode immediately after power-up?

No, W25Q16JVBYIQ TR requires explicit configuration of the Quad Enable (QE) bit in Status Register-2 before Quad SPI operation. By default, QE = 0; the host must issue Write Status Register-2 (31h) with QE = 1. Once set, QE is non-volatile and persists across power cycles-unless cleared by a subsequent write to Status Register-2.

Is the 64-bit Unique ID accessible through standard SPI commands?

Yes, the 64-bit Unique ID in W25Q16JVBYIQ TR is read using the standard Read Unique ID Number instruction (4Bh), which outputs 8 bytes of factory-programmed, globally unique data. This command operates in Standard SPI mode and does not require QE bit setting or special voltage conditions.

How does write protection work on W25Q16JVBYIQ TR when both /WP pin and status register bits are active?

On W25Q16JVBYIQ TR, hardware /WP pin protection and status register-based protection (BP2–BP0, TB, SEC, CMP) operate independently but concurrently. When /WP is low, Status Register writes are blocked regardless of SRP/SRL settings. When /WP is high, status register bits govern protection granularity. Both mechanisms must be considered in system-level security design.