Product Overview MC74LCX139: Dual Low Voltage CMOS 2-of-4 Decoder/Demultiplexer For complete documentation, see the data sheet Product Description The MC74LCX139 is a high performance, 2-of-4 decoder/ demultiplexer operating from a 2.3 to 3.6 V supply. High impedance TTL compatible inputs significantly reduce current loading to input drivers while TTL compatible outputs offer improved switching noise performance. A VI specification of 5.5 V allows MC74LCX139 inputs to be safely driven from 5 V devices. The MC74LCX139 is suitable for memory address decoding and other TTL level bus oriented applications. The MC74LCX139 high-speed 2-of-4 decoder/demultiplexer accepts two binary weighted inputs (A0, A1) and, when enabled, provides four mutually exclusive active-LOW outputs. The LCX139 features an active low Enable input. All outputs will be HIGH unless En is LOW. The LCX139 can be used as an 8-output demultiplexer by using one of the active-LOW Enable inputs as the data input and the other Enable input as a strobe. The Enable inputs which are not used must be permanently tied to ground. Current drive capability is 24mA at the outputs. Features • • • • • • • • • Designed for 2.3 to 3.6V VCC Operation 5V Tolerant Inputs - Interface Capability With 5V TTL Logic LVTTL Compatible LVCMOS Compatible 24mA Balanced Output Sink and Source Capability Near Zero Static Supply Current (10µA) Substantially Reduces System Power Requirements Latchup Performance Exceeds 500mA ESD Performance: Human Body Model >2000V; Machine Model >200V Pb-Free Packages are Available* Part Electrical Specifications Product MC74LCX139DG Compliance Status Channels VCC Min (V) VCC Max (V) tpd Max (ns) IO Max (mA) Package Type Pb-free ProductPre view 2 2 3.6 6.2 24 SOIC-16 Active 2 2 3.6 6.2 24 SOIC-16 Active 2 2 3.6 6.2 24 TSSOP-16 Active 2 2 3.6 6.2 24 TSSOP-16 Halide free MC74LCX139DR2G Pb-free Halide free MC74LCX139DTG Pb-free Halide free MC74LCX139DTR2G Pb-free Halide free For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016