SN75155PG4

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS232
Number of Drivers/Receivers:	1/1
Duplex:	Full
Receiver Hysteresis:	600mV
Data Rate:	--
Voltage - Supply:	4.5 V ~ 15 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	SN75155

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SN75155PG4 Application Field and Working PrincipleThe SN75155PG4 is an integrated circuit controller manufactured by Texas Instruments. It is part of the Group of Drivers, Receivers, Transceivers and serves as an interface between microcontrollers and peripheral devices. This device is a half-duplex MOSFET transmitter with output and logic control functions that allow serial data transfer.The SN75155PG4 serves as an interface in serial communication lines and can be used to transfer data between electronic devices. It works with both TTL and CMOS logic levels and operates over a wide temperature range. This device is widely used in applications such as microprocessor systems, automotive, industrial networks, and data acquisition.The SN75155PG4 can drive up to three A-type or B-type transceivers. It has a data output rate of up to 5 Mbps and contains two outputs, one for the A-type transceivers, and the second for the B-type ones. It uses three bits for control input, DIR, /RD, and /WR to configure the interface for either receiving or transmitting data. It also has an input for the Clock signal which is used to synchronize the data transfer. It provides open-drain outputs for the data line and the Clock line.The SN75155PG4 works by receiving two data bits from the A-type transceiver, with the output logic levels being determined by the logic values of the control inputs. When the /RD control input is HIGH, the received data is passed to the data output. When the /WR control input is HIGH, the data output is driven by the data input.The SN75155PG4 contains many protection features such as a current limiter for controlling the sink/source current, input overload protection, thermal overload protection, and ESD protection. It also has a built-in fault detector which can be used to detect any faults in the communication link.The SN75155PG4 is a highly reliable and provides a cost-effective solution for interfacing peripheral devices with microcontrollers in various applications. It is easy to use, has low power consumption, and provides high performance while ensuring long-term reliability.

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