MC75174BDWG

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Driver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	4/0
Duplex:	--
Data Rate:	10Mbps
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	20-SOIC
Base Part Number:	MC75174B

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Introduction to MC75174BDWG - Drivers, Receivers, Transceivers

The MC75174BDWG is an integrated circuit (IC) from NXP Semiconductors which combines three functions in a single device. This chip is an integrated physical interface device which features a driver, a receiver, and a transceiver. It is designed to accommodate point-to-point communications between physical interfaces, such as RS-485 or RS-232, without significant additional external components.

Basic Features

The MC75174BDWG contains an integrated transimpedance amplifier and a bus-connected differential driver and receiver, which makes it particularly suitable for applications requiring extended communication distances. The driver, receiver and transceiver are designed to provide high noise immunity, fast data transmission and robust voltage-level shifting. All inputs and outputs have TTL/CMOS compatible logic levels which greatly improve the flexibility of this device. Additionally, the input stage has a low-signal threshold for easy integration with other ICs.

Applications

The MC75174BDWG can be used in a variety of applications where it is necessary to interface a point-to-point physical interface. These include serial communication systems such as RS-232, RS-485, CAN bus, and MIL-STD-1553. It can also be used for local area networks, high speed industrial and commercial systems, fieldbuses for automation, and automotive applications.The MC75174BDWGis also popular for point-to-point applications such as Ethernet data communication. It allows for data transmissions of up to 10 Mbps and offers extensive protection against electromagnetic interference.

Working Principle

The MC75174BDWG integrates a driver, a receiver, and a transceiver. The driver is used to convert logic signals into the voltage levels necessary for data transmission on the physical interface. The receiver is used to convert the data signals back into logic levels. The transceiver is used to perform the necessary voltage level conversion between the communication interface and the MC75174BDWG itself.The transceivers also offer differential input and output lines with a separate common mode reference line that is used to set the common mode voltage level between the transmission mode and the receiving mode. This allows for the voltage level transformation to be made accurately and reliably, ensuring high accuracy and low distortion in data transmissions.The driver is capable of delivering data rates up to 10 Mbps and has the ability to provide a high noise margin for reliable operation. It also features a low-signal-threshold input stage to reduce power consumption and improve response time.

Conclusion

The MC75174BDWG is a great choice when looking for an integrated circuit designed for point-to-point communication between physical interfaces. It provides an efficient way to interface various point-to-point physical interfaces such as RS-232, RS-485, CAN bus, and MIL-STD-1553, making it suitable for applications such as Ethernet data communication and fieldbuses for automation. Its integrated driver, receiver, and transceiver offer excellent noise immunity and robust voltage-level shifting to ensure reliable data transmission.

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