GD25LB256EBIRY

Memory IC Overview

The GD25LB256EBIRY is a 256M-bit (32M x 8) Serial NOR Flash memory manufactured by GigaDevice. It operates within a voltage range of 1.65V to 2.0V and supports Standard SPI, Quad SPI, QPI, and DTR Quad I/O interfaces with a maximum clock frequency of 166 MHz. The device features a uniform sector architecture comprising 4K-byte sectors and 32/64K-byte blocks. It includes hardware write protection via the WP# pin, software block protection, and a dedicated RESET# pin for system reset functionality.

Memory IC Feature Summary

• Supports high-speed data transfer through Standard SPI, Quad SPI, QPI, and Double Transfer Rate (DTR) Quad I/O modes.
• Provides flexible memory protection including individual block locking, global sector protection, and hardware-protected status registers.
• Features a uniform sector architecture allowing efficient erase operations across 4K-byte sectors and larger blocks.
• Includes a dedicated hardware reset function accessible via the RESET# pin independent of device operation states.

Memory IC Applications

• Code storage in embedded systems requiring Execute-in-Place (XIP) capabilities
• Firmware storage for consumer electronics and industrial control devices
• Data logging applications utilizing non-volatile configuration registers
• Systems requiring hardware-level write protection for critical code segments

Memory IC Procurement Notes

Verify the specific suffix 'BIRY' against the manufacturer's official ordering guide to confirm package type and temperature grade. Ensure compatibility with 1.65V to 2.0V power supply rails. Confirm that the required interface modes (Standard, Quad, or DTR) are supported by the host controller. Check for availability of ECAD models if design integration is required.

Memory IC Selection Notes

Select this component when a 256M-bit density is required with support for high-speed DTR read operations. It is suitable for designs constrained to low voltage supplies between 1.65V and 2.0V. Consider the TFBGA-24 package if space efficiency is prioritized over standard SOP or WSON options. Ensure the application benefits from the uniform sector architecture for simplified memory management.

Memory IC Part Context

This part belongs to the GD25LB256E series of Uniform Sector Standard and Quad Serial Flash memories. The series is designed for high-performance applications requiring fast program and erase speeds alongside low power consumption. It integrates advanced security features and flexible protection schemes suitable for modern embedded storage needs.

Memory IC Replacement Considerations

GD25LB256EFIRR: Different package (SOP-16 vs TFBGA-24).

Memory IC FAQ

How does the DTR mode improve performance?

DTR Quad I/O mode transfers data on both rising and falling edges of the clock, effectively doubling the data rate compared to standard Quad SPI, supporting up to 832 Mbits/s.

What is the function of the RESET# pin?

The RESET# pin provides a dedicated hardware reset function. Pulling it low resets the device to standby mode and clears all volatile bits, regardless of the current operation state.