GD5F4GQ4UCYIGR

Memory IC Overview

The GD5F4GQ4UCYIGR is a non-volatile NAND flash memory integrated circuit manufactured by GigaDevice. It offers a storage capacity of 4 Gbit organized as 512M x 8 bits. The device utilizes an SPI interface with Quad I/O support and operates at a maximum clock frequency of 120 MHz. It functions within a supply voltage range of 2.7 V to 3.6 V and supports surface mount installation in an 8-WSON package measuring 6x8 mm.

Memory IC Feature Summary

• Non-volatile NAND flash technology for persistent data retention
• SPI interface with Quad I/O capability for high-speed data transfer
• Industrial temperature range operation from -40°C to +85°C

Memory IC Applications

• Embedded systems requiring compact non-volatile storage
• IoT devices needing reliable code execution space
• Consumer electronics firmware storage

Memory IC Procurement Notes

Verify the current manufacturing status before procurement, as this specific part number is listed as obsolete or end-of-life in distributor records. Confirm availability of recommended manufacturer substitutes such as the GD5F4GM8UEYIGR if active inventory is required. Ensure the replacement part matches the original pinout and electrical specifications to maintain system compatibility without redesign.

Memory IC Selection Notes

Select this component when a 4 Gbit density is required in an 8-pin WSON form factor. The Quad I/O SPI interface provides a balance between pin count efficiency and throughput. Verify that the host controller supports the necessary SPI modes and that the operating environment stays within the specified industrial temperature limits and voltage ranges for reliable performance.

Memory IC Part Context

This component belongs to the GD5F4GQ4 series of SPI NAND flash memories from GigaDevice. These devices are designed for applications demanding high density in small packages. The series typically includes variants with different packaging options and suffixes indicating specific revisions or environmental ratings, all sharing the core 4 Gbit architecture and SPI interface capabilities.

Memory IC Replacement Considerations

The GD5F4GM8UEYIGR is identified as a manufacturer-recommended substitute for the obsolete GD5F4GQ4UCYIGR. Engineers should verify that the physical dimensions and pin configuration of the replacement part are compatible with the existing PCB footprint to ensure seamless integration.