CD74HC244M96E4

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CD74HC244M96E4 (HC244) is a high-speed CMOS Logic octal buffer / line driver / line receiver designed in a small 20-lead MSE package. It is ideal for a variety of applications such as power-up reset, bus structure, data bus and address bus line drive, waveform shaping, sample and hold circuit, interface circuit, and waveform shaping. HC244 is a high-performance logic device that can drive data into a system without any extra buffering or decoding. It is suitable for wide data transmission applications in digital systems.

Application Field of CD74HC244M96E4

CD74HC244M96E4 contains octal (38-bit, 8-bit) line buffers, drivers and receivers. In particular, it is suitable for driving large amounts of data in high frequency digital circuits. It is important for use in data transmission, waveform shaping and sample-hold circuits, application circuitry, and switching circuits. They are also used in transmission lines and busses, as well as in multiplexers, circuits, and power down/power saving designs. The device is available in a 20-lead MSE package and it has low power consumption and temperature stability. HC244 can be used to design a bus structure Data bus, address bus drive and waveform shaping circuits.

Working Principle of CD74HC244M96E4

CD74HC244M96E4 is an octal buffer and line driver designed to provide a high drive capability and provide the flexibility to meet a wide range of applications. This device is specially designed for applications with multiple pins and data lines in high frequency systems. It is for driving large amounts of data in high frequency digital systems, such as driving transmission lines and busses, multiplexers, application circuits, switching circuits, as well as power down and power saving devices.

The device uses a Pseudo Open Drain Buffer design with symmetrical active high outputs. The included pull-up resistors allow the device to drive up to 10mA with a maximum data rate of 8MHz. The internal pull-ups are of various gate sizes and are activated when the output is High. The output can be put into high impedance (3-state) when the respective control input is Low.

The HC244 contains 38 buffers/drivers, 8 receivers and two power supply pins (Vcc and Gnd). The Vcc range is from 2.0V to 6.0V. Pin 1 is the most negative pin, and pin 20 is the most positive pin. A high input signal is recognized as logic 0 and a low input is recognized as logic 1. The output drivers have hysteresis to prevent unknown data. When pins 1 and 20 are shorted together, the octal buffer runs at twice the data rate compared to when they are open.

Conclusion

CD74HC244M96E4 (HC244) is a high-speed CMOS Logic octal buffer / line driver / line receiver designed in a small 20-lead MSE package. It is specifically designed for applications with multiple pins and data lines in high frequency systems. HC244 is suitable for wide data transmission applications in digital systems, such as transmission lines and busses, multiplexers, application circuits, switching circuits, as well as power down and power saving devices. The device employs a Pseudo Open Drain Buffer design with symmetrical active high outputs and low power consumption. This high speed device is ideal for a variety of applications such as power-up reset, bus structure, data bus and address bus line drive, waveform shaping, sample and hold circuit, interface circuit, and waveform shaping.

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