GD25WQ128H GigaDevice Wide-Voltage Low-Power SPI NOR Flash I. Core Basic Parameters Memory Capacity: 128Mbit = 16MB (16M×8bit) Voltage Specifications (Core Differentiation WQ Series) Wide Voltage: 1.65V ~ 3.6V, compatible with 1.8V/2.5V/3.3V systems, ideal for battery-powered IoT Communication Interface Standard SPI / Dual SPI / Quad SPI (4-wire high-speed); supports QPI Single/Dual/Quad normal read: up to 104MHz Quad DTR double-rate read: 66MHz, higher throughput Power Consumption (Ultra-Low Power Series) Deep sleep current: ≈0.1μA Standby and read currents significantly lower than standard GD25Q series, suitable for wearables and portable devices Lifespan & Data Retention Sector erase cycles: 100,000 times Data retention: 20 years Temperature Grades (Three Options) Commercial: -40℃ ~ +85℃ Extended Industrial: -40℃ ~ +105℃ High-Temp Industrial: -40℃ ~ +125℃ II. Hardware Functional Features Hardware reset pin H/W RESET, write protection WP#, hold HOLD# Erase suspend/resume (Suspend), supports interrupting read/write operations OTP security register + unique 64-bit device ID, firmware encryption, anti-cloning Uniform 4KB sectors, 32KB/64KB blocks, flexible partitioning; supports global/block/sector erase Software/hardware dual write protection to prevent accidental firmware erasure III. Mainstream Packages (GD25WQ128H Compatible) SOP8 150mil (narrow-body 8-pin) SOP8 208mil USON8 4×4mm, WSON8 6×5mm / 8×6mm SOP16 300mil, TFBGA24 (miniaturized high-density) IV. Model Suffix Meanings (Distinguishing Versions/Packages/Temperature) H: New-generation wide-voltage low-power version (compared to older GD25WQ128E, optimized for power and stability) MP: Mass production official version Ending YIGR/QIGR: Package + reel packaging code V. Same Series / Compatible Alternatives Comparison In-House GigaDevice Replacements GD25WQ128E: Previous model, similar functionality, H is the upgraded version with optimized power GD25Q128H: Standard 2.3~3.6V, not directly replaceable, voltage incompatible with 1.8V devices GD25LW128: Pure 1.8V narrow voltage, narrower voltage range Directly Compatible Competitors (Pin/Command Universal) Winbond W25Q128JW (1.7~3.6V wide voltage) Macronix MX25L12835F ISSI IS25LP128 VI. Typical Application Scenarios Wearable devices, Bluetooth earphones, smart bands (low power + wide 1.8V supply) Battery-powered IoT sensors, portable medical devices Smart home modules, low-power MCU firmware storage (ideal for GD32 pairing) Industrial handheld devices, instruments (extended temperature versions) VII. Key Advantages Summary 1.65~3.6V ultra-wide voltage, single component compatible with multi-voltage platforms, reducing material variety Industry-leading ultra-low sleep power, significantly extending lithium battery life Quad high-speed SPI, supports XIP for direct program execution without copying to RAM Original GigaDevice supply, stable availability, high cost-performance alternative to imported Flash