MC74LCX139DT

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The MC74LCX139DT is a 2-to-4 line decoder/demultiplexer device that converts the data from a 2-bit binary code to a 4-bit code output. It is part of the Low-Voltage CMOS logic family and is part of the Low-Voltage Low-Power CPU Ultra family. This device is ideal for applications that require signals to be distributed to multiple sources within a system. It can be used in applications such as communications systems, computers, point-of-sale systems, and surveillance systems, to name a few.The MC74LCX139DT is a dual-channel device that has two identical channels, each with two select lines and four outputs. It is a high-speed logic device that allows the user to select two input signals from two different sources and distribute them to four different output destinations. With the two select lines of the device, any two of the four outputs can be selected. It is also designed for a wide range of voltage and temperature ranges.The MC74LCX139DT has two input buffers, one for each of the two channels. Each input buffer is capable of decoding four different states and generating a corresponding logic “1” or “0”. The device operates at a voltage range of 2.5V to 5.5V and temperatures ranging from -40°C to +85°C. The outputs of the device are open drain outputs that can be wired to either DC/DC converters or LED arrays.The device uses two select lines to select which two of the four outputs are to be driven. When the two select lines, S1 and S2, are all “LOW”, then the four outputs are all “HIGH”. When S1 is “HIGH” and S2 is “LOW”, then the first two outputs are driven “LOW”, while the other two outputs remain “HIGH”. When S2 is “HIGH” and S1 is “LOW”, then the last two outputs are driven “LOW”, while the other two outputs remain “HIGH”. The outputs are all “LOW” when both select lines are “HIGH”.The MC74LCX139DT is a versatile device that can be used for a variety of applications. In communications systems, it can be used for selecting different frequencies for different transmitters and receivers. In computers, it can be used for selecting different data buses or address decoding. In point-of-sale systems, it can be used to drive multiple LEDs or panels. In surveillance systems, it can be used to drive multiple LEDs or cameras.The MC74LCX139DT provides a low-voltage, low-power, high-speed solution for distributing signals to multiple destinations within a system. It is a cost-effective and reliable way to ensure signals are distributed properly and accurately.

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