GD25Q256EYEGR

Memory IC Overview

The GD25Q256EYEGR is a 256M-bit (32M-byte) NOR flash memory device manufactured by GigaDevice. It supports standard, dual, and quad serial peripheral interface (SPI) protocols with clock frequencies up to 133MHz. The device features a uniform sector architecture of 4K-byte sectors and 32/64K-byte blocks. It operates on a single power supply voltage ranging from 2.7V to 3.6V. Key electrical characteristics include a typical standby current of 16μA and deep power-down current of 1μA. The memory organization consists of 32M pages of 256 bytes each.

Memory IC Feature Summary

• Supports standard SPI, Dual SPI, and Quad SPI interfaces for flexible data transfer rates.
• Includes advanced security features such as hardware/software write protection and unique identification.
• Features uniform sector and block architecture for consistent erase and program operations.
• Provides low power consumption modes including deep power-down.

Memory IC Applications

• Code storage in embedded systems requiring execute-in-place (XiP) capability.
• Data logging applications needing reliable non-volatile storage.
• Firmware storage for microcontrollers and system-on-chip (SoC) designs.
• Configuration parameter storage in industrial control devices.

Memory IC Procurement Notes

Verify the specific package variant, as the GD25Q256E series includes WSON8 (6x5mm), WSON8 (8x6mm), SOP16, and TFBGA-24 options. Confirm that the YEGR suffix corresponds to the required packaging and tape-and-reel specifications for your assembly line. Ensure compatibility with the host controller's SPI mode and voltage levels before integration.

Memory IC Selection Notes

Select this component when high-speed read performance via Quad SPI is required alongside robust data protection mechanisms. Consider the uniform sector size for simplified memory management compared to mixed-sector devices. Evaluate the operating temperature range and endurance requirements against the specified 100,000 program/erase cycles and 20-year data retention typical values.

Memory IC Part Context

The GD25Q256E belongs to the GD25Q family of dual and quad serial flash memories. It is designed to replace older density levels while offering improved speed and flexibility through multiple SPI modes. The device integrates a byte-addressable architecture suitable for direct code execution, reducing latency in boot processes and application loading scenarios.

Memory IC Replacement Considerations

GD25Q256DYIGR

Memory IC FAQ

How does the Quad Enable (QE) bit affect pin functionality?

When the QE bit is set to 1, the WP# and HOLD#/RESET# pins function as bidirectional I/O pins IO2 and IO3, enabling Quad SPI operation. If QE is 0, these pins retain their dedicated hardware functions.

What is the purpose of the Extended Address Register?

The Extended Address Register allows access to memory addresses beyond the 16MB limit of 3-byte addressing. It enables 4-byte address mode for accessing the full 32M-byte capacity of the device.