SN74LS298DG4

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Logic - Signal Switches, Multiplexers, Decoders have been widely applied in many fields. One of the most common in-use logic-signal switch employed today is the SN74LS298DG4. Let’s have a look at its application and working principle.

SN74LS298DG4 is a high-speed quad 2-input multiplexer and dual 4-line-to-1-line data selector/multiplexer. It has two data select control inputs (S0 and S1), two 1-bit address inputs (A and B), and two 4-bit data inputs (D0-D3 and D4-D7). It utilizes CMOS Analog Multiplexer Technology for minimal power dissipation and for high speed operation.

The SN74LS298DG4 is mainly used for applications that need high speed and/or low power. It is widely used in electronic circuits, automotive, industrial and communication applications such as data acquisition, motor control systems, network switching, robotics and telecommunication systems.

As for its working principle, the SN74LS298DG4 uses the coaxial pair of address inputs A and B to select between 2x2, 2x4, 4x1, and 4x2 multiplexer configurations. The selected multiplexer outputs are connected to the common outputs. The multiplexer also uses a second coaxial pair of address inputs (S0 and S1) to select bits of data from the 32x32 bit data sets. Data input on the selected lines (D0-D3 and D4-D7) is then passed to the outputs.

The SN74LS298DG4 employs an internal 6-gate CMOS Analog Multiplexer which allows the multiplexer to operate at speeds of up to 8MHz. It also utilizes a 4b-active low control input, a 32x32 bit wide data set (D0-D3 and D4-D7) as its primary input, as well as two sets of two coaxial address inputs for multiplexers of different sizes. This makes the SN74LS298DG4 suitable for applications that require substantial memory and/or high speed.

In conclusion, SN74LS298DG4 is widely used in applications that require high speed and/or low power, such as automotive, industrial and communication applications. It has a 6-gate CMOS Analog Multiplexer, which allows it to operate at speeds of up to 8MHz. Furthermore, its two sets of coaxial address inputs allow for multiplexers of different sizes, making it a highly versatile logic-signal switch for project design.

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