74HC21D,652

邏輯門 DUAL 4-INPUT NAND GATE

74HC21D,653

邏輯門 DUAL 4-INPUT NAND GATE

74HC21DB

邏輯門 DUAL 4-INPUT NAND GATE

74HC21DB,112

邏輯門 DUAL 4-INPUT NAND

74HC21DB,118

邏輯門 DUAL 4-INPUT NAND

74HC21DB-T

邏輯門 DUAL 4-INPUT NAND GATE

74HC21N

74HC21N,652

邏輯門 DUAL 4-INPUT NAND GATE

74HC21PW,112

邏輯門 DUAL 4-INPUT AND GATE

74HC21PW,118

邏輯門 AND 2CIRCUIT 6V

74HC221

74HC221AM