HD74LS258

HD74LS258 Quadruple 2-line-to-1-line Data Selectors / Multiplexers (with three-state outputs) REJ03D0470–0300 Rev.3.00 Jul.15.2005 This multiplexer features three-state outputs that can interface directly with and drive data lines of bus-organized systems. With all but one of the common outputs disabled (at a high-impedance state) the low impedance of the single enabled output will drive the bus line to a high or low logic level. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the outputenable circuitry is designed such that the output disable times are shorter than the output enable times. Features Ordering Information Part Name Package Type HD74LS258FPEL SOP-16 pin (JEITA) Package Code (Previous Code) PRSP0016DH-B (FP-16DAV) Package Abbreviation FP Taping Abbreviation (Quantity) EL (2,000 pcs/reel) Pin Arrangement Select 1 1A Inputs 1B 2 3 Output 1Y 4 2A Inputs 2B 5 6 Output 2Y 7 GND 8 S 1A G 1B 4A 1Y ...