25Q80BSIG FEATURES ◆ 8M-bit Serial Flash -1024K-byte -256 bytes per programmable page Standard, Dual, Quad SPI -Standard SPI: SCLK, CS#, SI, SO, WP#, HOLD# -Dual SPI: SCLK, CS#, IO0, IO1, WP#, HOLD# -Quad SPI: SCLK, CS#, IO0, IO1, IO2, IO3 High Speed Clock