Description
The 74AHCT138 is an advanced high speed CMOS device that is designed to be pin compatable with 74LS low power Schottky types.

Features
• Supply Voltage Range from 4.5V to 5.5V
• Sinks or Sources 8mA at VCC = 4.5V
• CMOS Low Power Consumption
• Schmitt Trigger Action at All Inputs
• Inputs Accept up to 6.0V
• ESD Protection Tested per JESD 22
• Exceeds 200-V Machine Model (A115-A)
• Exceeds 2000-V Human Body Model (A114-A)
• Exceeds 1000-V Charged Device Model (C101C)
• Latch-Up Exceeds 250mA per JESD 78, Class II
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Note 3)

Applications
• Memory chip select decoding
• Demultiplexing
• Single line peripheral control
• Allow simple serial bit streams from a microcontroller to control as many peripheral lines as needed