GD25LQ16CTIG

Memory IC Overview

The GD25LQ16CTIG is a 16M-bit (2M x 8) Serial NOR Flash memory manufactured by GigaDevice. It operates on a single 1.65V to 2.1V power supply and supports Standard, Dual, and Quad SPI interfaces with a clock frequency up to 104MHz. 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 three 512-byte security registers with OTP lock capabilities.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI interfaces for flexible data transfer rates.
• Features uniform sector architecture allowing granular erase operations.
• Includes advanced security mechanisms such as hardware/software write protection and OTP-locked security registers.
• Provides a 128-bit unique identifier for each individual device.

Memory IC Applications

• Code storage in embedded systems requiring Execute In Place (XIP).
• Consumer electronics utilizing low-voltage operation.
• Industrial applications demanding wide temperature range stability.
• IoT devices needing compact surface-mount packaging.

Memory IC Procurement Notes

Verify the specific package variant (SOP8 150mil) against the design footprint. Confirm voltage compatibility within the 1.65V to 2.1V range. Ensure the industrial temperature grade (-40°C to +85°C) meets environmental requirements. Check RoHS compliance status for regulatory adherence.

Memory IC Selection Notes

Select this component when a 16M-bit density is required with strict low-voltage constraints. It is suitable for designs needing uniform sector erasing and robust data protection features. Consider the SOP8 package dimensions for PCB layout. Verify interface speed requirements against the 104MHz limit.

Memory IC Part Context

This part belongs to the GD25LQ16C family of 1.8V Uniform Sector Dual and Quad Serial Flash memories. It shares core architectural features with other members of the series but differs in package type and specific ordering suffixes that denote temperature grades or packaging formats.

Memory IC Replacement Considerations

GD25LQ16ETIGR

Memory IC FAQ

What is the default state of the Quad Enable (QE) bit?

The QE bit defaults to 0, which enables the WP# and HOLD# pins for their standard functions rather than Quad I/O operations.

How is the Status Register protected from unintended writes?

Protection is managed via SRP1 and SRP0 bits, allowing for software, hardware (via WP#), power-supply lockdown, or one-time programmable modes.