The GD5F1GM9RE is a 1Gb SLC Quad SPI NAND flash memory chip introduced by GigaDevice, supporting low-voltage operation at 1.7V-2.0V with a typical 1.8V supply, targeting low-power applications. The chip features a maximum clock speed of 166MHz, is compatible with 4-wire SPI and DTR double-rate transfer, and has a page size of 2KB without built-in hardware ECC, requiring host software verification. It includes a deep power-down mode for energy savings. Available in WSON8 and TFBGA24 package options, it offers commercial-grade and industrial-wide temperature ranges, suitable for data storage in smart wearables and low-voltage IoT portable devices but does not support execute-in-place (XIP).