型号：HD74LS642-1
厂商：HITACHI[Hitachi Semiconductor]
大小：52.51 Kbytes
页数：共4页
功能：Octal Bus Transceivers(inverted open-collector outputs)
大小：6854.82 Kbytes
页数：共274页
功能：Ouadruple 2-input Positive NAND Gates
