GD25Q256EWJGR

Memory IC Overview

The GD25Q256EWJGR is a 256M-bit (32M x 8) Serial NOR Flash memory device manufactured by GigaDevice. It supports Standard, Dual, and Quad SPI interfaces with a maximum clock frequency of 133 MHz. The device operates on a single power supply voltage ranging from 2.7V to 3.6V. It features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. The component is housed in an 8-WSON package measuring 5x6 mm.

Memory IC Feature Summary

• Supports standard, dual, and quad serial peripheral interface modes for flexible data transfer rates.
• Includes advanced security features such as hardware/software write protection and unique identification.
• Provides high-speed read capabilities with continuous read wrap functionality to reduce latency.
• Features low power consumption with typical standby and deep power-down currents.

Memory IC Applications

• Code storage for embedded systems requiring execute-in-place operation.
• Firmware storage for consumer electronics and industrial control devices.
• Data logging and configuration storage in IoT applications.

Memory IC Procurement Notes

Verify the specific suffix 'WJGR' against the manufacturer's official ordering guide to confirm the exact package dimensions and temperature range. Ensure compatibility with the host system's voltage levels and SPI command set before integration. Cross-reference the datasheet revision date to confirm current feature availability.

Memory IC Selection Notes

Select this component when a 256M-bit capacity is required with a compact 8-WSON footprint. It is suitable for designs needing high-speed Quad SPI access up to 133 MHz. Consider the industrial temperature range if operating in extreme environments. Verify that the host controller supports the necessary dummy cycle configurations for optimal performance at higher frequencies.

Memory IC Part Context

This part belongs to the GD25Q256E series of Dual and Quad Serial Flash memories. The series offers uniform sector architecture and supports various address modes. It is designed for high-reliability applications requiring fast program and erase speeds with long data retention capabilities.

Memory IC Replacement Considerations

GD25Q256EYIGR

Memory IC FAQ

What is the function of the HOLD#/RESET# pin?

The function depends on the HOLD/RST bit in Status Register No. 3. When cleared, it acts as a HOLD pin to pause communication. When set, it functions as a dedicated RESET pin to reset the device logic.

How is Quad SPI mode enabled?

Quad SPI mode is enabled by setting the Quad Enable (QE) bit to 1 in the Status Register. This reconfigures the WP# and HOLD#/RESET# pins as bidirectional I/O2 and I/O3 lines.