SN74ABT162245DGGR

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1 Introduction

SN74ABT162245DGGR is a dual bus transceiver designed to allow data to be flowed from one of the transceiver ports to the other through a 3-state buffer. It belongs to the family of Buffer, Drivers, Receivers, Transceivers under Logic. It is designed to buffer 8-bit wide data paths in asynchronous communication systems that transfer data in both directions simultaneously. Characterized by two separate clock inputs and a bidirectional data bus, these transceivers offer the capability of providing asynchronous handshaking protocol of data transfer between two buses.

2 Application Field

The SN74ABT162245DGGR is mainly used in systems that require several boards in a computer to communicate with each other and the disk drives. Its most common uses are to transfer data between a Pentium processor-based box and a disk array, and to connect a mainframe computer to its disk drives. It can also be used to interface with a PC motherboard and peripheral devices. Moreover, it is used in medical imaging systems and industrial control systems. It is well-suited to data transfer applications where 8-bit data is simultaneously transferred in both directions asynchronously.

3 Working Principle

The SN74ABT162245DGGR transceiver operates in three modes. In the receive mode, the device generates an acknowledgement (ACK) signal, indicating that it has received data sent on a separate data line. In the transmit mode, the device generates an acknowledgement (ACK) signal, indicating that it has acknowledged the data sent by its counterpart. Finally, in the bidirectional mode, the device can be used to transfer data in both directions.

The SN74ABT162245DGGR transceiver operates asynchronously, which means that its clock frequency and phase can be different from its counterpart\'s. As a result, it will generate and accept valid data packets at different times. The device generates the appropriate acknowledge signals at the correct moments, and it will hold off transmission until it is given permission to transmit. It will also guarantee that the data sent and received is in full compliance with the criteria.

The SN74ABT162245DGGR is a dual-port transceiver, which means that two data ports are used for data flow and controlling. Each port has two 8-bit buffers—a transmit (Tx) buffer and a receive (Rx) buffer. To ensure the data transfer integrity, all received data is compared to the transmitted data byte by byte and the output signals of the transceiver reflect the result of the comparison.

4 Conclusion

The SN74ABT162245DGGR is a dual bus transceiver designed to allow data to be flowed from one of the transceiver ports to the other through a 3-state buffer. It is mainly used for data transfer applications where 8-bit data is simultaneously transferred in both directions asynchronously. The device works asynchronously, generating the appropriate acknowledge signals at the correct times, and it will hold off transmission until it is given permission to transmit. As a result, it guarantees that the data sent and received is in full compliance with the criteria.

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