【NXP Semiconductors】74HC20D,652,IC DUAL 4-IN NAND GATE 14-SOIC
【NXP Semiconductors】74HC20D,653,IC DUAL 4-IN NAND GATE 14SOIC
【NXP Semiconductors】74HC20DB,门（与/非与/或/非或） DUAL 4-INPUT NAND GATE
【NXP Semiconductors】74HC20DB,112,IC DUAL 4-IN NAND GATE 14-SSOP
【NXP Semiconductors】74HC20DB,118,IC DUAL 4-IN NAND GATE 14SSOP
