SN74LVCH244ADWG4

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The SN74LVCH244ADWG4 belongs to TI’s high-performance LVCH family, which provides high overdrive capability. This device is referred to as a low-voltage hex buffer and line driver with 3-state outputs. It is typically used as a level- translation device between various devices in the logic family, such as between the LVTTL, LVCMOS, and FAST families. The SN74LVCH244ADWG4 can be used in a variety of logic applications such as receivers, transceivers, drivers, and buffers.

The SN74LVCH244ADWG4 operates from a single 2.5 V to 3.6 V power supply. It features 24 rad-hard output buffers that provide high drive current with noise immunity (i.e. ESD). Furthermore, the SN74LVCH244ADWG4 is characterized for operation over the extended temperature range of −55°C to 125°C.

The SN74LVCH244ADWG4 consists of three groupings of logic gates: a driver group, a receiver group, and a transceiver group. Each group can be used independently of the other two. The driver group consists of six independent, non-inverting 3-state buffers. The receiver group is composed of six buffers, each having two inputs and one output. The transceiver group is made up of three transistors each with push-pull output. The SN74LVCH244ADWG4 has active-low-enable inputs for each driver, receiver, and transceiver to inhibit the outputs if desired.

The application fields of SN74LVCH244ADWG4 are mainly in the fields of networking, multimedia, consumer electronics, communications and other embedded systems. The buffers and drivers can be used for level shifting, connecting cores and memories, and for switching digital signals in/out of a system. , This device can also be found in consumer applications, such as gaming systems, set-top boxes, and portable electronic devices.

The working principle of the SN74LVCH244ADWG4 is based on the 3-state concept. A 3-state buffer uses two inputs, an active input and a control input. The control input determines the output state: active, high-impedance, or inactive. If the buffer is set to the active state, the output will follow the logic level of the active input. If the buffer is set to the inactive state, the output will be forced to the logic level of the inactive input. The high-impedance state allows for another device to take control of the output.

In conclusion, the SN74LVCH244ADWG4 is a low-voltage hex buffer and line driver with 3-state outputs and is suitable for use in LVTTL, LVCMOS, and FAST logic families. It is a rad-hard device, suitable for use in a wide range of applications, from networking and consumer electronics to embedded systems. Its 3-state outputs offer quick and reliable data transmission, making it an ideal choice for multiple logic applications.

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