GD25Q20CEIGR [GigaDevice]

The GD25Q20C is a 2M-bit (256K-byte) serial flash memory supporting standard SPI, Dual SPI, and Quad SPI interfaces. It features fast read speeds up to 120MHz, low power consumption (1μA deep power down and standby), and flexible architecture with uniform 4K-byte sectors and 32/64K-byte blocks. The device supports software and hardware write protection, advanced security features including a 128-bit unique ID and 4x256-byte OTP security registers, and allows XIP (execute in place) operation. It offers fast program/erase times (0.6ms page program, 45ms sector erase) and high endurance (100,000 cycles) with 20-year data retention.