型号：HD74LS257
厂商：HITACHI[Hitachi Semiconductor]
大小：69.11 Kbytes
页数：共6页
功能：Quadruple 2-line-to-1-line Data Selectors/Multiplexers(with non inverted 3-state outputs)
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：83.69 Kbytes
功能：Quadruple 2-line-to-1-line Data Selectors / Multiplexers (with not inverted 3-state outputs)
型号：HD74LS257FPEL
型号：HD74LS257P
