74HC21

74HC21D

74HC21D,652

逻辑门 DUAL 4-INPUT NAND GATE

74HC21D,653

逻辑门 DUAL 4-INPUT NAND GATE

74HC21DB

逻辑门 DUAL 4-INPUT NAND GATE

74HC21DB,112

逻辑门 DUAL 4-INPUT NAND

74HC21DB,118

逻辑门 DUAL 4-INPUT NAND

74HC21DB-T

逻辑门 DUAL 4-INPUT NAND GATE

74HC21N

74HC21N,652

逻辑门 DUAL 4-INPUT NAND GATE

74HC21PW,112

逻辑门 DUAL 4-INPUT AND GATE

74HC21PW,118

逻辑门 AND 2CIRCUIT 6V

74HC221