74LVTH245SJX

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The 74LVTH245SJX is an 8-bit bidirectional bus transceiver that belongs to the logic - buffers, drivers, receivers, and transceivers category. With the capability to transmit asynchronous communications between two buses, it is ideal for bus-oriented applications such as data latching, memory expansion, and computer control.

The 74LVTH245SJX is specifically designed as a high-speed single 3-state buffer IC, providing high-speed data transfer between various points in a digital system. Its function is to provide high-speed I/O isolation between the two transceiving buses. Its 3-state logic allows it to be configured as a receiver or an open-collector bus driver, thus providing the capability for true high-speed data transfer.

As far as its application field, the 74LVTH245SJX can be used in various applications such as control or clock buffers, memory expansion, system control, and various data transfer circuits. In addition, it offers an integrated level-shifting function which, when combined with an IC of the same family, allows for high-speed data transmission between two buses of different logic families (for example, a 3.3V bus and a 5V bus).

The 74LVTH245SJX is an inverting buffer. It operates with two independent buses, which are referred to as the A bus and the B bus. The A and B buses are composed of 8 bit lines each and are connected to 8-pin terminals called A and B respective. This means that data from the A bus can be transferred to the B bus, while data from the B bus can be transferred to the A bus. The output of each buffer is also coupled to an output enable pin (OE) which is used to isolate the buffer output from the load.

The working principle of the 74LVTH245SJX involves the transfer of data between the A and B buses via the OE pin. When the OE pin is ‘high’ the buffer is enabled, which allows data to be transferred between the A and B buses. As the data is transferred, the OE pin is automatically returned to ‘low’, which effectively isolates the data from the bus. This ensures that there is no feedback or interference between the buses.

When the OE pin is ‘low’, the buffer is disabled and no data can be transferred between the A and B buses. In addition, the output of the buffer is inhibited and no output is generated from the buffer until the OE pin is ‘high’ again. This prevents any false logic levels from being generated at the output of the buffer.

The 74LVTH245SJX is thus an ideal logic IC for transferring data between two buses. It offers a high-speed data transfer rate and a 3-state logic that allows it to be configured as an open-collector or driver. Its integrated level-shifting capability also makes it an ideal choice for transferring data between two buses of different logic families. By leveraging its 8-bit bidirectional capabilities and 3-state logic, the 74LVTH245SJX can effectively transmit async communications between two buses, making it ideally suited for bus-oriented applications such as data latching, memory expansion, and computer control.

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