MC74LCX139

双路低电压CMOS 2至4解码器/多路解复用器，具有5V容限输入 Dual Low−Voltage CMOS 2−to−4 Decoder/Demultiplexer With 5V−Tolerant Inputs

The 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

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Designed for 2.3 to 3.6V VCC Operation

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5V Tolerant Inputs - Interface Capability With 5V TTL Logic

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LVTTL Compatible

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LVCMOS Compatible

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24mA Balanced Output Sink and Source Capability

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Near Zero Static Supply Current 10µA Substantially Reduces System Power Requirements

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Latchup Performance Exceeds 500mA

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ESD Performance: Human Body Model >2000V; Machine Model >200V

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Pb-Free Packages are Available*