SN74LS151DRE4

Series:	74LS
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Multiplexer
Circuit:	1 x 8:1
Independent Circuits:	1
Current - Output High, Low:	400µA, 8mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	16-SOIC
Base Part Number:	74LS151

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The SN74LS151DRE4 is an extremely versatile integrated circuit commonly used as a logic switch, multiplexer, and decoder. Specifically, the SN74LS151DRE4 is a Quadruple 2-to-1 Multiplexer which allows simultaneous transfer of four bits of binary information from two sources. In other words, it is four separate two input multiplexers which allow the selection of one of two outputs (A0, A1) in response to two data input signals (B0, B1). The two data input signals determine which of the two information sources (data inputs I0, I1 and I2, I3) provide the output (A0, A1).The SN74LS151DRE4 is usually used to transfer data within a control circuit or to change the information from a single data line to multiple lines. The SN74LS151DRE4 can be used in multiplexing applications, in which a single input is used to select one of two signals, or vice versa. For example, the SN74LS151DRE4 could be used to combine the outputs of two analog to digital converters for a single address code.The SN74LS151DRE4 can also be used as a decoder. In its most basic sense, a decoder is a device that accepts N input signals (in this case 2) and produces M output signals (in this case 4). A decoder can create a combination of 0s and 1s in response to the input signals that can activate certain functions in a circuit. For example, the SN74LS151DRE4 could be used to detect a 1 or 0 on two digital lines to generate one of four resulting outputs.The SN74LS151DRE4 is a popular device in a variety of applications due to its versatility, ease of use and reliability. It is typically used in communication systems, computer systems, memory circuits and process control systems. The SN74LS151DRE4 is also commonly used in the automotive industry for speed sensing and the control of analog-to-digital and digital-to-analog data converters.The SN74LS151DRE4 operates on a single 5 V power supply, with TTL compatible inputs and outputs on each pin. The device has a propagation delay of 28 ns (typical), with a power dissipation of 1.2W. The SN74LS151DRE4 also has a partially shielded package to reduce the effects of external noise and a high-impedance output state when the control (select) inputs remain HIGH or LOW and permit the system flexibility to modify circuits or encode additional data.In conclusion, the SN74LS151DRE4 is an extremely versatile and reliable integrated circuit. It is commonly used as a logic switch, multiplexer, and decoder in a variety of applications, including communications systems, computer systems, memory circuits and process control systems. Its high-impedance output state gives it system flexibility, while its partially shielded package reduces the effects of external noise. The SN74LS151DRE4 is an invaluable tool for any engineer who needs to quickly and reliably transfer data or detect a 1 or 0 on two digital lines.

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