CD74HC368MG4

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Introduction

CD74HC368MG4 is a quad, Octal Buffer / Line Driver with 3-state outputs. It is a CMOS device with a 3.6-V to 5.5-V power supply range. CD74HC368MG4 is designed for high-speed memories and systems where software controls are not needed. It features eight non-inverting buffers with 3-state output and an open-drain output enable, OE, line. It has a very high speed and a high degree of output sink and source capability.

Application Field

CD74HC368MG4 is useful in buffer, line driver applications. It has plenty of applications as Buffers and also as Line Drivers, due to its capability of sourcing, sinking and driving the output. The OE line of the device is used to enable the output independently.

CD74HC368MG4 fits in many types of circuit for buffering, such as buffering data of a bi-directional bus, isolating data and address buses, clock and data buffers, memory address multiplexer control, 100MHz clock buffer, multiplexer and demultiplexer logic interfaces, and it can be used as line drive. It can also be used as a transmitter and a receiver in serial communication bus.

Working Principle

CD74HC368MG4 is composed of eight independent non-inverting buffers with output enable control. When the output enable, OE, terminal is low, all buffer outputs are in the high impedance off state. When OE is held high, each buffer output will be the same level as its respective input. Each buffer output has its own independent enable, allowing it to be turned on or off in any order.

Each buffer of CD74HC368MG4 operates in both voltage and current transfer mode. The input logic level is a combination of both the logic high transfer level, Vih, and the logic low transfer level, Vil. The output high level is determined by the voltage comparator and the output low is determined by the current comparator. All inputs and outputs are capable of handling both positive and negative current.

Conclusion

The CD74HC368MG4 is a quad, Octal Buffer / Line Driver with 3-state outputs. It features eight non-inverting buffers with 3-state output and an open-drain output enable, OE, line. It has a wide range of applications in buffer, line driver and serial communication bus, due to its capability of sourcing, sinking and driving the output. It is a CMOS device with a 3.6 to 5.5 volt power supply range and a very high speed and a high degree of output sink and source capability. This device is a reliable and cost-effective solution for many applications and can be used for data buffering, clock buffering and line driving.

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