Winbond Electronics Corporation W25Q16JVSNIM TR

Overview

W25Q16JVSNIM TR from Winbond is a 16 M-bit (2 MB) serial NOR flash memory IC supporting Dual/Quad SPI, QPI, and DTR read modes. It operates from 2.7V to 3.6V, delivers up to 133 MHz SPI clock frequency (532 MHz equivalent in Quad I/O), and features uniform 4 KB sectors, 100K program-erase cycles, and >20-year data retention. It serves as non-volatile code storage and XIP (execute-in-place) memory in microcontroller boot systems.

For engineers reviewing the W25Q16JVSNIM TR datasheet, W25Q16JVSNIM TR pinout, W25Q16JVSNIM TR application, or W25Q16JVSNIM TR equivalent, key selection criteria include Quad Enable (QE) bit configuration, /HOLD vs /RESET pin behavior in 8-pin packages, DTR timing compliance, and sector protection granularity for firmware integrity.

Technical Context

The W25Q16JVSNIM TR implements a flexible SPI-compatible interface with mode-selectable operation: Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3), and QPI (all four IOs for instruction + data). Its architecture supports both volatile and non-volatile status register bits-including Quad Enable (QE), Block Protect (BP2–BP0), and Security Register Lock (LB1–LB3)-enabling hardware- and software-based memory protection.

It integrates JEDEC-standard SFDP register, 64-bit unique ID, three 256-byte security registers with OTP locks, and supports Erase/Program Suspend & Resume. The device uses continuous read mode with wrap lengths of 8/16/32/64 bytes and requires only 8 clocks to address memory-critical for low-overhead XIP execution.

Key Specifications

Pinout & Package

W25Q16JVSNIM TR is supplied in an 8-pin SOIC 150-mil package (package code SN), with lead-free, RoHS-compliant construction and surface-mount compatibility.

Key Features

Applications

Equivalent & Alternatives

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

Compared with MX25L1606EM1I-12G and S25FL116K0XMFI041, the W25Q16JVSNIM TR uniquely combines QPI instruction compression, DTR timing, JEDEC SFDP auto-configuration, and 64-bit unique ID-making it optimal for modern XIP-capable SoCs requiring both speed and identity-aware firmware management.

Availability

W25Q16JVSNIM TR is available at Aetrix Electronics and suitable for industrial automation, automotive infotainment, and medical diagnostics applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.

Supply support for W25Q16JVSNIM 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 memory solutions, including serial NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.

The W25Q series was designed specifically for high-performance, space-constrained embedded systems requiring reliable code storage, fast XIP execution, and robust security features-targeting microcontroller-based applications from edge sensors to automotive ECUs.

FAQ

What is the package type and lead count of the W25Q16JVSNIM TR?

The W25Q16JVSNIM TR uses an 8-pin SOIC 150-mil (0.150 inch wide) surface-mount package with gull-wing leads, designated by Winbond package code SN. It is RoHS-compliant, halogen-free, and rated for industrial temperature range (−40°C to +85°C). This package matches footprint compatibility with legacy SPI flash devices while supporting all W25Q16JV interface modes.

Does the W25Q16JVSNIM TR support Quad Peripheral Interface (QPI) mode, and how is it enabled?

Yes, the W25Q16JVSNIM TR supports QPI mode, which reduces instruction overhead by transmitting opcodes across all four IO lines simultaneously. To enable QPI, the non-volatile Quad Enable (QE) bit in Status Register-2 must first be set using Write Status Register-2 (31h) instruction. Then, the Enter QPI (38h) command switches the device into QPI mode. The W25Q16JVSNIM TR remains in QPI until Exit QPI (FFh) is issued or a hardware reset occurs.

How does the /HOLD pin function differ between Standard SPI and Quad SPI modes on the W25Q16JVSNIM TR?

In Standard SPI mode (QE = 0), pin 7 functions as /HOLD: pulling it low pauses ongoing read/write operations while /CS remains active. In Quad SPI or QPI mode (QE = 1), pin 7 becomes IO3 and the /HOLD function is disabled. For 8-pin packages like the W25Q16JVSNIM TR, /RESET functionality is only available when QE = 0 and configured via Status Register; it is not accessible when QE = 1.

What is the significance of the "DTR" designation in W25Q16JVSNIM TR, and which instructions use it?

The "DTR" in W25Q16JVSNIM TR stands for Double Transfer Rate, a feature allowing address and data to be latched on both rising and falling edges of the serial clock-doubling effective throughput without raising CLK frequency. DTR is used in instructions including DTR Fast Read (0Dh), DTR Fast Read Dual I/O (BDh), DTR Fast Read Quad I/O (EDh), and DTR Burst Read with Wrap (0Eh). These require proper setup of DTR-specific timing parameters in the device's configuration registers.

Can the W25Q16JVSNIM TR be used for secure firmware updates, and what hardware features support this?

Yes, the W25Q16JVSNIM TR supports secure firmware updates via multiple hardware features: individual 4 KB sector lock (via 32-bit security registers), top/bottom array protection (TB bit), complement protect (CMP), and 64-bit unique ID (read via 4Bh). Its three 256-byte security registers include OTP lock bits (LB1–LB3), preventing reprogramming of cryptographic keys or signature verification constants once written-ensuring immutable root-of-trust for signed OTA updates.