CD74HC147MG4

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Logic - Signal Switches, Multiplexers, and Decoders are broadly used in numerous applications ranging from efficient home lighting to outdoor entertainment. Among the diverse selection of such devices are the CD74HC147MG4, a member of the high-speed CMOS HC logic family. The CD74HC147MG4 is a 4-bit priority encoder with an active LOW enable Pin and a 4:1 multiplexer. Each device can be used to encode up to 3 binary at most into one with an active LOW enable Pin, as well as to operate as a 4:1 multiplexer.

The CD74HC147MG4 has E1, E2, A0, A1, and A2 Input pins with a Y Output pin. The three input pins A0, A1, and A2 are used to select the signal to be multiplexed. The two enable inputs E1 and E2 are used for selecting one of two multiplexed outputs, with input E2 being dominant. The Y output is the selected output. For encoder operation, the input selected by A0, A1, and A2 are encoded by priority, with the highest precedence given to A0. If two or three inputs are LOW simultaneously, the output reflects the lower precedence inputs. Outputs are made LOW only if all of the inputs are LOW, and all of the enable inputs E1 and E2 are LOW, and in all other cases, the Y output pin is HIGH.

The CD74HC147MG4 operates with logic supply voltages (V CC ) of 4.5V to 5.5V and the effective total power dissipation is considerably low at 1/10th of a watt. Also, it is typically designed to report multiple bits of data, either in parallel or serial fashion. Parallel operates by sending multiple bits of data side by side and serial operates by sending multiple bits of data in single file, one after another. Both of the input current and output current for the CD74HC147MG4 device are typically low at 1µA and 10µA respectively.

The CD74HC147MG4 is used in a wide range of applications, such as providing data and address selection, data conversion, data storage, and motor control. Some of the features of the device include high-speed operation (with a maximum full-swing pulse rate up to 5MHz), low-power consumption (with a maximum I CC of 10µA), and relatively low cost, making the CD74HC147MG4 device an ideal choice for applications such as telecommunications and industrial process control.

In conclusion, the CD74HC147MG4 is a powerful logic chip with a broad applicability. It is equipped with Input pins and an enable/disable Pin to act as a priority encoder and a 4:1 multiplexer, along with a low-power consumption and a high-speed operation. This makes the CD74HC147MG4 a great selection for applications in controlling motors, data conversion, and address and data selection.

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