TJA1029T/20/1J

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Transceiver
Protocol:	LINbus
Number of Drivers/Receivers:	1/1
Duplex:	--
Receiver Hysteresis:	175mV
Data Rate:	--
Voltage - Supply:	5 V ~ 18 V
Operating Temperature:	-40°C ~ 150°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SO

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The TJA1029T/20/1J is an advanced physical layer transceiver developed by the electronic engineering company NXP Semiconductors, specifically designed for use in Automotive Local Interconnect Networks (LIN). LIN networks are used in vehicles to provide controllers and devices, such as lighting and climate control systems, with an efficient and reliable means of communication. The TJA1029T/20/1J offers superior performance and is optimized for applications such as interior lighting, infotainment and seat control systems. The transceiver’s primary function is to provide a physical layer, which serves as the basic conduit for communication between the bus nodes. It serves as an interface between the digital logic level and the physical layer of the LIN. The device is designed for use in environments where interference and noise are a concern, and supports a transmission rate up to 20Kbps. The TJA1029T/20/1J features two separate transceiver channels, transmitting and receiving, and four ports which are used to connect to the bus nodes. The transceiver has a dedicated 256 byte FIFO memory, providing a fast and efficient transfer of data, while ensuring data is not lost due to interference. It also features a large-scale configuration register, providing the user with enormous flexibility to configure the device for their exact application. The transceiver utilizes the LIN physical layer protocol to ensure reliable communication. The physical layer protocol is the most important component of the LIN network, specifying the physical connections and flow of data between nodes. The protocol consists of a bunch of predefined messages, which are sent by the master node. The slave nodes then respond to these messages. The protocol is designed to minimize communication latency and increase message reliability.The TJA1029T/20/1J is designed for easy implementation and minimal component count. The device can be simply connected to the LIN bus, via the four ports on the device, without needing any additional hardware. The device has an on-board clock oscillator, which reduces component costs and complexity. The device also provides fault-diagnostics capability and can detect bus-level conflict and other faults. This helps ensure the smooth communication between the nodes on the bus, while pinpointing any potential issues. The TJA1029T/20/1J is ideally suited for applications that must meet stringent requirements in terms of communication reliability and latency, such as automotive emergency systems, where response time and communication reliability are critical. It is ideal for applications where cost and space constraints need to be considered, such as in embedded systems. The TJA1029T/20/1J transceiver offers an efficient, reliable, and cost-effective solution for applications where communication reliability and latency are critical. Its physical layer protocol ensures robust communication between the nodes, while its flexible configuration register provides the user with a great deal of control over the device. The device’s easy implementation and fault diagnostics capabilities make it the ideal choice for automotive and embedded applications.

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