M74HC151B1R

Series:	74HC
Packaging:	Tube
Part Status:	Obsolete
Type:	Multiplexer
Circuit:	1 x 8:1
Independent Circuits:	1
Current - Output High, Low:	5.2mA, 5.2mA
Voltage Supply Source:	Single Supply
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-DIP
Base Part Number:	74HC151

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M74HC151B1R is a high-speed CMOS 8-input multiplexer and is typically used as an 8-bit digital multiplexer and demultiplexer. It is designed to operate with a supply voltage ratings ranging from 2.0V to 6.0V, with frequency of the clock input not exceeding 10MHz with VCC of 6.0V. It belongs to the Logic - Signal Switches, Multiplexers and Decoders category and is commonly used as a data selector.The M74HC151B1R is a 8-input multiplexer which allows 8-bit parallel data to be multiplexed onto a single output line. The device consists of two independent 8-channel multiplexers which can control the selection of the desired 8-bit data. It can be used to route a single bit in an 8-bit serial data stream to one of 8 data output registers.The multiplexer has 4 address inputs, A0, A1, A2 and A3, which select one of 16 channels of data. Data at the selected address is then outputted on the Y output. The A0 and A1 address inputs are fed to the respective address inputs of both the multiplexers within the M74HC151B1R, and the A2 and A3 control the respective enabling inputs of the multiplexers.The multiplexer has an active-low enable input, EN. The EN input when active low sets all multiplexer outputs to low. A high level on the enable sets the multiplexer to its normal operating state; in this mode, the data information flowing through the channels is enabled to be outputted on the Y output.The M74HC151B1R utilizes advanced silicon gate CMOS technology and has superior noise-immunity characteristics. The logic level threshold voltage of the input is compatible with TTL and ECL family logic and does not require Schmitt trigger like apoaches for noise immunity of the input.The M74HC151B1R is used in many applications and can be used to provide single path data transmission from a shared resource or processor through a multi-channel bus or from multiplexed bus interfaces. It can also be used to control or route 8-bit data over multiple independent data paths. Moreover, the M74HC151B1R can be used as a data multiplexer to select between different data lines for one common data output line.In conclusion, the M74HC151B1R is a versatile 8-input multiplexer which can be used as an 8-bit digital multiplexer and demultiplexer in a broad range of applications. It has superior noise-immunity characteristics and is compatible with TTL and ECL family logic. Due to its multiplexer and demultiplexer capabilities, the M74HC151B1R can be used to route a single bit in an 8-bit serial data stream, control or route 8-bit data over multiple independent data paths, and select between different data lines for one common data output line.

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