SN65HVD23D

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Half
Receiver Hysteresis:	130mV
Data Rate:	25Mbps
Voltage - Supply:	4.5 V ~ 5.5 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:	SN65HVD23

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SN65HVD23D Application Field and Working Principle

The SN65HVD23D is an integrated circuit used for interfacing between digital controller peripherals and communication lines. It is a cost-effective transceiver device that provides an effective isolated digital logic interface on multidrop communication lines.The SN65HVD23D is an IC for introducing digital isolators used in systems to optimize robustness against line disturbances such as voltage transients and power supply noise. It can also be used for connecting digital controllers to asynchronous serial data interfaces for applications such as the full-duplex RS-485 and RS-422 networks.

Features

The main features of the SN65HVD23D include:• Low-power operation – The SN65HVD23D has a low-power mode to reduce power consumption during idle periods.• Multidrop capability – The device supports up to 32 nodes on a single communication line.• Isolation – The device provides an effective isolated digital logic interface on multidrop communication lines.• Short-circuit protection – The device can eliminate the need for termination resistors by using a built-in short-circuit protection.• Data Rate – The device supports a wide range of data rates from 10 Kbps to 2 Mbps.• Fault Detection – The device includes a fault detection circuit which can detect communication line failures and shut off the interface.• Automatic skew compensation – The device includes an automatic skew compensation circuit which minimizes the effects of signal delays on the communication line.• Broad operating temperature range – The device has an operating temperature range of -40°C to +85°C.

Working Principle

The SN65HVD23D is a transceiver device that provides an effective isolated digital logic interface for communication on multidrop communication lines.The SN65HVD23D is composed of two main parts, the transmitter and the receiver. The transmitter receives digital data and encodes it into a differential signal suitable for transmission on a multidrop communication line. At the receiver, an equalizer and a differential decoder takes the received differential signal and converts it back into digital data.The SN65HVD23D is designed to provide a robust and reliable link on a multidrop communication line. It employs several features to ensure successful data transmission and reception.

Isolation

The SN65HVD23D provides an isolated barrier between the transmitter and the receiver. This isolation feature helps to improve the robustness of the communication link by preventing data errors due to noise, transients or interference.

Fault Detection

The fault detection circuit can detect communication line failures or disturbances and shut off the interface to prevent data errors.

Automatic skew compensation

The SN65HVD23D includes an automatic skew compensation circuit which compensates for signal delays on the communication line and ensures that the data is received correctly.

Conclusion

The SN65HVD23D is an integrated circuit used for interfacing between digital controllers and communication lines. It is designed to provide an effective isolated digital logic interface on multidrop communication lines, while providing robust and reliable link mechanisms. The device can also be used for connecting digital controllers to asynchronous serial data interfaces for applications such as full-duplex RS-485 and RS-422 networks.

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