GD25LQ128DYIGR

Memory IC Overview

The GD25LQ128DYIGR is a 128M-bit (16M x 8) NOR flash memory IC manufactured by GigaDevice. It operates on a single 1.65V to 2.0V power supply and supports Standard, Dual, Quad SPI, and QPI interfaces with a maximum clock frequency of 120 MHz. The device features uniform sector architecture with 4K-byte sectors and 32/64K-byte blocks. It includes hardware and software write protection, a 128-bit unique ID, and security registers. Packaged in an 8-WSON (6x8mm) surface-mount format, it ensures data retention for up to 20 years and withstands at least 100,000 program/erase cycles.

Memory IC Feature Summary

• Supports standard, dual, quad SPI, and QPI modes for flexible interface options
• Includes advanced security features such as hardware/software write protection and OTP lockable security registers
• Features a 128-bit unique identifier for device authentication
• Provides execute-in-place (XIP) capability with continuous read wrap functions

Memory IC Applications

• Code storage for microcontrollers and system-on-chips
• Embedded systems requiring non-volatile data retention
• Consumer electronics firmware storage
• Industrial control applications

Memory IC Procurement Notes

Verify the specific package variant matches the required footprint, as the GD25LQ128D series offers multiple packages including WSON-8 (6x8), WSON-8 (5x6), SOP-8, and VSOP-8. Confirm that the voltage range of 1.65V to 2.0V aligns with the target system's power supply rails. Check for automotive-grade requirements, as this specific part number is not explicitly listed as AEC-Q100 qualified in the provided documentation.

Memory IC Selection Notes

Select this component when a low-voltage (1.8V class) operation is required for the memory subsystem. Ensure the design accommodates the 8-WSON (6x8mm) package dimensions. Consider the 120 MHz speed limit if higher throughput is needed, or opt for the 3V family if voltage compatibility is a constraint. Verify that the system supports the necessary SPI command sets for dual and quad operations.

Memory IC Part Context

This device belongs to the GD25LQ128D series of 1.8V Uniform Sector Dual and Quad Serial Flash memories. It is designed for applications demanding high performance and low power consumption within a compact form factor. The series shares architectural similarities with other GigaDevice NOR flash products but is distinct in its specific voltage operating range and package offerings.

Memory IC Replacement Considerations

GD25LQ128DWIGR (WSON-8 5x6mm package)

Memory IC FAQ

What is the default state of the Quad Enable (QE) bit upon power-up?

The Quad Enable (QE) bit defaults to 0 upon power-up, which disables Quad I/O operations on the WP# and HOLD# pins.

How is the status register protected from unintended writes?

Protection can be achieved via software using the SRP bits, hardware by pulling the WP# pin low, or through power-supply lock-down and one-time programmable settings.