SN65LBC184D

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Half
Receiver Hysteresis:	70mV
Data Rate:	250kbps
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	SN65LBC184

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Introduction to SN65LBC184D

The SN65LBC184D is a low-power differential line transceiver designed for use as a full-duplex communication interface between two data buses. It operates over a wide range of supply voltages,from 3.0V to 5.5V and is IEEE 802.3 Compliant. The SN65LBC184D is used for transmitting and receiving parallel data over unshielded twisted-pair cables. It is ideal for digital instrumentation and data acquisition systems requiring good noise rejection.

Application Fields of SN65LBC184D

The SN65LBC184D transceiver is typically used in applications where its good noise immunity and full-duplex operation can replace digital data transmission systems over longer distances. Its low-power dissipation over a wide voltage range makes it an ideal solution for transmitting and receiving data within a computer system; connecting two computers; connecting two computers to a common network; and transmitting and receiving data over phone lines. The SN65LBC184D is also used in industrial control systems and medical equipment.

Working Principle of SN65LBC184D

The SN65LBC184D transceiver has two separate transmitter and receiver input buses. It uses a combination of differential signaling and common mode signaling as its physical layer to transmit and receive data. The transmitter is designed to select between its two input ports, allowing selective communication of data between two buses. When the transmitter is enabled, it monitors both its input buses for change in the data. If either input changes, the transmitter will drive its output lines to the same value. The receiver is enabled when the opposite device is transmitting data on its output lines. The receiver includes both a differential and a common-mode amplifier to reject noise and maintain its data integrity. During normal operation, the transceiver will detect a logic "high" in either its transmitter or receiver lines, and will then enable the opposite device for data transmission.

Conclusion

The SN65LBC184D is a low-power, high-performance differential line transceiver designed for full-duplex communication between two buses. It is used in applications where its good noise immunity and full-duplex operation can replace digital data transmission systems over longer distances, such as connecting two computers, connecting two computers to a common network, and transmitting and receiving data over phone lines. Its working principle relies on a combination of differential and common mode signaling to transmit and receive data.

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