GD25LQ20EKIGR

Memory IC Overview

The GD25LQ20EKIGR is a 2 Mbit Serial NOR Flash memory device manufactured by GigaDevice. It supports Standard, Dual, and Quad SPI interfaces with a maximum clock frequency of 133 MHz for fast read operations. The device operates on a single power supply voltage ranging from 1.65 V to 2.0 V. Memory organization consists of 256 K x 8 bits, arranged in uniform 4 K-byte sectors and 32/64 K-byte blocks. It features a typical standby current of 10 μA and deep power-down current of 1 μA.

Memory IC Feature Summary

• Supports Standard, Dual, and Quad SPI modes with data transfer rates up to 532 Mbits/s in Quad I/O mode.
• Provides flexible software and hardware write protection mechanisms including block protect and status register lock.
• Includes advanced security features such as a 128-bit Unique ID and three 512-byte Security Registers with OTP locks.
• Enables Execute In Place (XiP) operation with continuous read capabilities to reduce instruction fetch latency.

Memory IC Applications

• Code storage for microcontrollers and system-on-chips
• Firmware storage in consumer electronics
• Data logging and configuration storage in IoT devices

Memory IC Procurement Notes

Verify the specific package variant (USON8 or SOP8) required for the design, as the base part number covers multiple packages. Confirm that the 1.65V-2.0V operating voltage range aligns with the target system's power supply rails. Ensure the Quad Enable bit configuration matches the interface requirements if Quad SPI is utilized.

Memory IC Selection Notes

Select this component for applications requiring low-voltage operation between 1.65V and 2.0V. It is suitable for designs needing high-speed read performance via Quad SPI. Consider the available package options (USON8 or SOP8) based on board space constraints. Verify compatibility with the host controller's SPI interface modes.

Memory IC Part Context

This device belongs to the GD25LQ40E/20E series of Uniform Sector Dual and Quad Serial Flash memories. The series is designed for high-performance, low-power embedded applications. It shares architectural similarities with other GigaDevice SPI NOR Flash products but is distinguished by its specific low-voltage operating range and 2 Mbit density.

Memory IC Replacement Considerations

GD25LQ20ESIGR

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# pins function as bidirectional I/O pins (IO2 and IO3) to support Quad SPI operations. When QE is 0, these pins retain their dedicated Write Protect and Hold functions.

What is the purpose of the CMP bit in the Status Register?

The Complement Protect (CMP) bit works in conjunction with the Block Protect bits to provide flexible array protection. It allows for different protection schemes depending on whether the top or bottom portion of the memory is protected.