CD4556BMG4

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The CD4556BMG4 is a high-speed CMOS multiplexer/demultiplexer and data selector/data multiplexer, which is available in a 14-pin dual-in-line plastic package. It is an integrated circuit device employed in a wide range of applications, including logic control, signal switching, multiplexing, decoding, and data processing.

The device provides two independent multiplexers with individual enable inputs, as well as an additional select input that allows users to select between the two multiplexers. The multiplexers are capable of selecting signals among 4 bits of data. Each multiplexer consists of a four-line-to-one-line data selector and a one-line-to-one-line data multiplexer with the output inverter available for both. The device also provides two additional select lines, which further facilitate the selection of any two or all four of the data input lines for routing toward the multiplexers for selection.

The CD4556BMG4 works off of a single +5 Volt power supply and features low power consumption, standby currents of about 80 µA, and higher operating current of about 200 µA.The device has both HIGH and LOW logic levels that are compatible with the most popular logic families, including the CMOS input levels, the TTL input levels and ECL logic levels. In addition, the device offers very short propagation delays and high noise immunity. This device is also highly reliable with a maximum power dissipation of 500mW at 125°C, a maximum junction temperature of 150°C, and a high operating temperature range of -55°C to 125°C.

In terms of general application areas, the CD4556BMG4 is mainly used in data transmission, switching, multiplexing, data routing, and logic control. The device is especially well-suited for applications that require high-speed, low-power operations and reliability. The device is also used in audio and video applications, including digital audio/video data streaming, broadcast signal distribution, digital audio mixers and processors, as well as digital signal routing and distribution. It is also commonly used in communication systems and computer networks for signal multiplexing, switching, and routing. Finally, the CD4556BMG4 is also employed in display systems, including high-definition television, digital displays, and projectors.

The working principle of the CD4556BMG4 can be summarized in two short steps: Firstly, data is applied to the four data input lines and the appropriate select inputs S0, S1, and S2 are asserted. Depending on the status of the select inputs, the CD4556BMG4 will select one of the four data bits. Secondly, the resulting data bit is then routed to the appropriate output through the enable inputs ENa and ENb. When ENa or ENb is low, the data bit is routed to the respective output line. When both ENa and ENb are low, both outputs ONO and ON1 are activated and the output levels are determined by the select inputs.

In summary, the CD4556BMG4 is a versatile device that is suitable for a wide range of signal switching, multiplexing, and logic control applications. The device features a wide operating range, low power consumption, fast switching speeds, and high noise immunity. Additionally, the device offers two independent multiplexers, which can be used to select among up to 4 bits of input data by using the corresponding select inputs. The device is primarily used in data and signal transmission, switching, multiplexing, and routing applications. Finally, the working principle of the CD4556BMG4 can be summarized in two steps: firstly, data is applied to the four data input lines and the appropriate select inputs are asserted, and secondly, the resulting data is then routed to the appropriate output through the enable inputs.

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