Low−Voltage CMOS 3−to−8 Decoder/Demultiplexer With 5 V−Tolerant Inputs

The MC74LCX138 is a high performance, 1–of–8 decoder/demultiplexer operating from a 2.7 to 3.6V 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 5.5V allows MC74LCX138 inputs to be safely driven from 5V devices. The MC74LCX138 is suitable for memory address decoding and other TTL level bus oriented applications.

Current drive capability is 24mA at the outputs.

• Designed for 2.7 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