GD25Q40CIGR in Macronix MX25 / GigaDevice GD25 SPI Flash Family
The GD25Q40CIGR is a member of the GigaDevice GD25Q series of 4 Megabit SPI NOR Flash memory components. Manufactured using a high-performance CMOS process, these chips utilize a standard Serial Peripheral Interface (SPI) supporting Single, Dual, and Quad I/O modes. They are primarily used as non-volatile storage for firmware, boot code, and critical system data in resource-constrained embedded systems where a small footprint and low pin count are essential requirements for the design.
Variants within the GD25Q40 sub-family primarily differ by package type and temperature qualification. The 'IGR' suffix typically denotes a 1.27mm pitch SOP8 package with an industrial temperature range of -40 to 85 degrees Celsius. Other versions may offer USON8 or WSON8 footprints for space-sensitive designs, or 'extended' temperature ratings for more demanding automotive or outdoor environments. Performance characteristics like clock frequency and power consumption remain consistent across these physical variants.
