型号：HD74LS21
厂商：HITACHI[Hitachi Semiconductor]
大小：43.05 Kbytes
页数：共5页
功能：Dual 4-input Positive AND Gates
大小：6854.82 Kbytes
页数：共274页
功能：Ouadruple 2-input Positive NAND Gates
厂商：RENESAS[Renesas Technology Corp]
大小：55.42 Kbytes
型号：HD74LS21FPEL
型号：HD74LS21P
