W25P16VSFIG

Memory IC Overview

The W25P16VSFIG is a 16M-bit (2M-byte) Serial Flash memory device manufactured by Winbond Electronics. It operates on a single 2.7V to 3.6V power supply and features a 4-pin SPI serial interface supporting clock rates up to 50MHz. The memory array is organized into 8,192 programmable pages of 256 bytes each, grouped into 32 erasable sectors of 64K-bytes. It includes a separate 256-byte Parameter Page for configuration data. The component supports hardware and software write protection mechanisms and is housed in a 16-pin SOIC package.

Memory IC Feature Summary

• Supports high-speed serial data transfers via a standard SPI bus compatible with Modes 0 and 3.
• Provides flexible write protection through hardware control pins and non-volatile status register bits.
• Includes a dedicated parameter page for storing ID numbers and configuration settings separately from the main array.

Memory IC Applications

• Controller-based serial code download systems
• Microcontroller systems requiring storage for voice, text, or data
• Battery-operated and portable products

Memory IC Procurement Notes

Verify the specific suffix against official documentation to confirm package dimensions and pinout compatibility. Ensure the operating voltage range aligns with system requirements. Confirm RoHS compliance status if environmental regulations apply. Check for any revision history updates that may affect electrical characteristics or instruction sets before finalizing procurement.

Memory IC Selection Notes

Select this component for applications requiring low power consumption and space-saving packaging. It is suitable for systems with limited pins where a simple serial interface is preferred over parallel buses. Consider the 16-pin SOIC form factor for board layout constraints. Evaluate the need for hardware write protection features when designing for data integrity in noisy environments.

Memory IC Part Context

This device belongs to the W25P80/16/32 family of Serial Flash memories, which are fully compatible with previous NexFlash NX25P80/16/32 products. The family offers varying densities to accommodate different storage needs while maintaining consistent interface and command structures. This specific model provides 16M-bit capacity within the series.

Memory IC Replacement Considerations

W25P80VSFIG

Memory IC FAQ

What is the function of the /HOLD pin?

The /HOLD pin allows the device operation to be paused while actively selected. When pulled low, the Serial Data Output goes to high impedance, and inputs on DI and CLK are ignored, preserving the current state until the signal returns high.

How does the Parameter Page differ from the main memory array?

The Parameter Page is a separate 256-byte section distinct from the main program memory array. It is designed for storing user data like IDs or configuration parameters and offers significantly faster erase times compared to sector erasing the main array.