Product Overview MC74LCX257: Low Voltage CMOS Quad 2-Input Multiplexer For complete documentation, see the data sheet Product Description The MC74LCX257 is a high performance, quad 2-input multiplexer with 3-state outputs operating from a 2.3 to 3.6V supply. High impedanceTTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5V allows MC74LCX257 inputs to be safely driven from 5.0V devices. Four bits of data from two sources can be selected using the Select input. The four outputs present the selected data in the true(noninverted) form. The outputs may be switched to a high impedance state by placing a logic HIGH on the Output Enable (OEbar) input. Current drive capability is 24mA at the outputs. Features • • • • • • • • Designed for 2.3 to 3.6V VCC Operation 5V Tolerant - Interface Capability With 5V TTL Logic Supports Live Insertion and Withdrawal IOFF Specification Guarantees High Impedance When VCC = 0V LVTTL Compatible LVCMOS Compatible 24mA Balanced Output Sink and Source Capability Near Zero Static Supply Current in All Three Logic States (10<FONT FACE=SYMBOL>m</font>A) Substantially Reduces System Power Requirements • Latchup Performance Exceeds 500mA • ESD Performance: Human Body Model >2000V; Machine Model >200V For more features, see the data sheet Part Electrical Specifications Product Compliance Status Channels VCC Min (V) VCC Max (V) tpd Max (ns) IO Max (mA) Package Type MC74LCX257DR2G Pb-free Active 4 2 3.6 6 24 SOIC-16 Active 4 2 3.6 6 24 TSSOP-16 Active 4 2 3.6 6 24 TSSOP-16 Halide free MC74LCX257DTG Pb-free Halide free MC74LCX257DTR2G Pb-free Halide free For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016