SN74HC138DRE4

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The SN74HC138DRE4 is a high-performance, low-power hex-inverter buffer/driver device available in a wide range of standard logic packages. It is designed for fast, ascending-edge digital switching applications, and is ideal for address decoding and data selection. The SN74HC138DRE4 is especially useful in applications requiring multiple input lines and very low power dissipation. It can be programmed to handle any combination of logic signals including binary, ternary, quaternary, and octal.

The SN74HC138DRE4 belongs to the family of logic – signal switches, multiplexers, and decoders. It features six active-low inverting outputs, each feeding an individual latched output stage. Non-inverting inputs are available for both enable and reset routing. Output enable logic is tied to VDD, so the device is disabled when the voltage drops below the logic threshold. The SN74HC138DRE4 is robust and reliable, with an operating temperature range from -50°C to 125°C.

The SN74HC138DRE4 works using a three-line to eight-line decoder/demultiplexer. It converts three binary or three-state inputs into eight outputs. Each output represents an enable signal that can be routed to specific devices. This 8-bit device provides a versatile way to expand address and data lines by combining a logic controller with a octal buffer/driver. Spreading out the circuitry enables maximum speed and reduces power drain while providing real-time control information.

The SN74HC138DRE4’s logic levels are non-overlapping. This means that each output may only be enabled during one state at a time, allowing for a lower power dissipation and faster switching speeds. When enabled, each output will consume approximately 12 mA, depending on output load. The output can be enabled for a three- to five-volt range, providing flexibility for custom applications.

The SN74HC138DRE4 offers a wide range of applications and benefits when used in digital systems. It is designed to handle any type of logic switching, multiplexing, and decoding, including address decoding and data selection. Because of its low power dissipation, the device is ideal for applications where energy efficiency is essential. It is also well suited for high-speed bus systems, where fast response times are key.

The SN74HC138DRE4 is a versatile and robust IC offering high-speed, low-power logic solutions. It is designed to handle all types of digital switching, multiplexing, and decoding tasks. By combining a three-line to eight-line decoder/demultiplexer with an octal buffer/driver, this device offers improved signal routing for fast and efficient data processing. With its wide operating temperature range, robust construction, and low power dissipation, the SN74HC138DRE4 is an ideal choice for a wide range of digital logic applications.

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