SN74LS258B

SN74LS257B, SN74LS258B Quad 2−Input Multiplexer with 3−State Outputs The LSTTL / MSI SN74LS257B and the SN74LS258B are Quad 2-Input Multiplexers with 3-state outputs. Four bits of data from two sources can be selected using a Common Data Select input. The four outputs present the selected data in true (non-inverted) form. The outputs may be switched to a high impedance state with a HIGH on the common Output Enable (EO) Input, allowing the outputs to interface directly with bus oriented systems. It is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all ON Semiconductor TTL families. Schottky Process For High Speed Multiplexer Expansion By Tying Outputs Together Non-Inverting 3-State Outputs Input Clamp Diodes Limit High Speed Termination Effects Special Circuitry Ensures Glitch Free Multiplexing ESD > 3500 Volts GUARANTEED OPERATING RANGES Symbol Parameter Min Typ Max Unit VCC Supply Voltage TA Operating Ambient Temperature Range 4.75 5.0 5.25 V 0 25 70 °C IOH Output Current − High IOL Output Current − Low −2.6 mA 24 mA http://onsemi.com LOW POWER SCHOTTKY 16 1 PLASTIC N SUFFIX CASE 648 16 1 SOIC D SUFFIX CASE 751B 16 1 SOEIAJ M SUFFIX CASE 966 © Semiconductor Components Industries, LLC, 2006 July, 2006 − Rev. 8 ORDERING INFORMATION Device Package Shipping SN74LS257BN 16 Pin DIP 2000 Units/Box SN74LS257BD SOIC−16 38 Units/Rail SN74LS257BDR2 SOIC−16 2500/Tape & Reel SN74LS2...