74hc138 datasheet

The 74HC138 is a high-speed Si-gate CMOS device that performs as a 3-to-8 line decoder/demultiplexer. This integrated circuit features three enable inputs (E1, E2, and E3), which control the operation of the device. The 74HC138 is designed to decode three binary weighted address inputs (A0, A1, and A2) to an active low output, providing eight mutually exclusive outputs. It also includes a NAND gate to enable the 74HC138 to function as an active-low demultiplexer by using one of the enable inputs as a data input. This versatile device operates over a wide voltage range (2V to 6V), making it suitable for a wide range of applications. The 74HC138 is commonly used in microprocessor systems, address decoding, memory decoding, and various other digital systems. Its high speed, low power consumption, and wide operating voltage range make it a popular choice for design engineers seeking a reliable and versatile decoder/demultiplexer solution.