74F245SJ

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Logic - Buffers, Drivers, Receivers, Transceivers

The 74F245SJ is an octal transceiver device which is designed to operate with the digital logic families of Intel\'s high performance MCS-48 family of microcontroller systems. It is a non-inverting octal bus transceiver and it is used to provide bidirectional data flow between the microcontroller and the development board. The device is available in a 14-pin DIP package.

The 74F245SJ has eight bidirectional buffers that are each configured as three-state output buffers. It is designed to perform the following functions: receive data from the microcontroller, drive data to the development board, and provide a three-state output. It also has five active low control inputs: three enable inputs (OUTPEN, DAEN and BAIEN) and two clear inputs (A-Clear and B-Clear).

Working Principle

The 74F245SJ is an asynchronous circuit, which means that the input and output do not have to be synchronized in order for it to work. The device works as a dual 3-state buffer circuit with both inputs and outputs active. The two enable inputs, Output Enable (OUTPEN) and Data Enable (DAEN) control the data flow. OUTPEN controls the output of the 74F245SJ, and DAEN selects the input to the device. When OUTPEN is high, the 74F245SJ provides uninterrupted bidirectional data flow between the microcontroller and the development board. When OUTPEN is low, the outputs of the 74F245SJ are placed in a high-impedance state, which prevents them from loading the data bus. When DAEN is low, data is received from the microcontroller, and when DAEN is high, data is sent to the microcontroller. Both the A and B sides of the 74F245SJ have active low BAIEN and AClear/BClear inputs which, when asserted, will force the corresponding outputs to their “off” state.

Application Field

The 74F245SJ is widely used in various applications and can be implemented in many different fields. It is commonly used to provide bidirectional data flow between the microcontroller and development boards, and is also used in logic and clock distribution systems, as well as in communication systems. The device is also used in asynchronous and synchronous peripheral buses, such as I2C and SPI, and is used in systems that require data transmission over long distances. The 74F245SJ can also be used in embedded systems and can be easily integrated into the system since it is available in a 14-pin DIP package.

Thanks to its low power consumption and fast switching speeds, the 74F245SJ is suitable for use in high-speed designs. It is capable of handling up to eight channels of data and is also electrical overstress (EOS) protected, which makes it reliable in a variety of applications. Additionally, the device is designed to mitigate the effects of electromagnetic interference (EMI).

The 74F245SJ is an extremely useful and versatile device that is used in a wide range of applications. It can be used to provide bidirectional data flow between the microcontroller and the development board, and can be easily integrated into the system by using its 14-pin DIP package. The device is capable of handling up to eight channels of data and is also protected against EMI, making it a suitable choice for use in high-speed and long-distance systems.

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