【NXP Semiconductors】74HC20PW,门（与/非与/或/非或） DUAL 4-INPUT NAND GATE
【NXP Semiconductors】74HC20PW,112,IC DUAL 4-IN NAND GATE 14TSSOP
【NXP Semiconductors】74HC20PW,118,IC DUAL 4-IN NAND GATE 14TSSOP
【NXP Semiconductors】74HC20PW-T,门（与/非与/或/非或） DUAL 4-INPUT NAND GATE
【NXP Semiconductors】74HC21D,652,IC DUAL 4-IN AND GATE 14SOIC
【NXP Semiconductors】74HC21D,653,IC DUAL 4-IN AND GATE 14SOIC
