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W25Q32JVSSIQ

W25Q32JVSSIQ

Winbond
A lower-density 32 Mbit option in the same family if 64 Mbit is more than required and you want to save cost or board area.
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Overview

The W25Q32JVSSIQ is a 32 Mbit (4MB) non-volatile Serial Flash memory part that utilizes the SPI interface with support for Dual and Quad I/O modes. It operates on a standard voltage range of 2.7V to 3.6V and supports high-speed clock frequencies up to 133 MHz. This device is part of the SpiFlash family, offering a cost-effective alternative for designs that do not require the higher density of 64 Mbit or 128 Mbit components.

Why Choose This Part

The W25Q32JVSSIQ provides high-performance data transfer through its Quad SPI mode, effectively quadrupling standard SPI throughput. It features a space-efficient 8-pin SOIC package and is backward compatible with the older W25Q 'FV' family, easing the migration path for existing designs. Its 133 MHz clock speed allows for fast XIP (Execute-in-Place) operations directly from the flash memory.

Applications

Firmware Storage
Storing bootloader and application code for microcontrollers in embedded systems.
Parameter Logging
Saving configuration settings, calibration data, and user preferences that must persist through power cycles.
Asset Tracking
Providing localized data buffering for IoT trackers before syncing with a gateway or cloud service.
HMI Asset Management
Storing small fonts, icons, and menu structures for low-resolution graphical user interfaces.

Key Specifications

Technology FLASH - NOR
Memory Size 32Mbit
Memory Type Non-Volatile
Memory Format FLASH
Mounting Type Surface Mount
Package / Case 8-SOIC (0.209", 5.30mm Width)
Clock Frequency 133 MHz
Memory Interface SPI - Quad I/O
Voltage - Supply 2.7V ~ 3.6V
Memory Organization 4M x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-SOIC
Write Cycle Time - Word, Page 3ms

Getting Started

To interface with this memory, configure your microcontroller's SPI peripheral for Mode 0 or Mode 3. Ensure the QE (Quad Enable) bit is managed correctly if using Quad I/O modes, noting that this specific 'IQ' variant has QE=1 fixed in Status Register-2. Hardware prototyping can be simplified using an 8-pin SOIC to DIP adapter or by using standard SPI flash programmers like the Segger Flasher.

Also Consider

W25Q64JVSSIQ Winbond Electronics - Double the capacity (64 Mbit) in the same physical footprint for designs with expanding firmware requirements.
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