TJA1080TS,112

Specialized Overview

The TJA1080TS,112 is a FlexRay transceiver compliant with the FlexRay electrical physical layer specification V2.1 Rev. A. It provides an advanced interface between the protocol controller and the physical bus in a FlexRay network, supporting data transfer rates from 1 Mbit/s to 10 Mbit/s. The device can be configured as either an active star transceiver or a node transceiver. It features differential transmit and receive capabilities, excellent EMC performance, and high ESD protection. The operating supply voltage range on pin VBAT is 6.5 V to 60 V, while VCC and VIO operate within 4.75 V to 5.25 V and 2.2 V to 5.25 V respectively. The virtual junction temperature rating extends from -40 °C to +150 °C.

Specialized Feature Summary

• Configurable for both node and active star topologies
• Integrated low power management with multiple sleep modes
• Comprehensive system diagnosis including overtemperature and short-circuit detection
• High electromagnetic immunity and electrostatic discharge protection

Specialized Applications

• Time-triggered communication systems
• Vehicle networking in electrification and powertrain applications
• FlexRay networks requiring active star coupler functionality

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product status documentation. Confirm that the package type matches the required SSOP20 footprint and ensure compliance with automotive qualification standards such as AEC-Q100 before finalizing procurement decisions.

Specialized Selection Notes

Select this component when designing FlexRay networks requiring support for both linear passive bus and active star topologies. Ensure the host controller supports the mode control signals compatible with NXP CAN transceivers. Verify that the system power architecture accommodates the specified VBAT and VIO operating ranges for reliable operation.

Specialized Part Context

The TJA1080 series belongs to NXP Semiconductors' portfolio of FlexRay transceivers designed for automotive applications. It complements other NXP interface solutions by providing specialized connectivity for high-speed, deterministic vehicle communication protocols used in safety-critical systems.

Specialized Replacement Considerations

Public confirmed substitute part numbers include TJA1080ATS/1 and TJA1080TS/N. Verify functional compatibility and pinout alignment before substitution.

Specialized FAQ

How is the transceiver configured as a node versus a star?

Configuration is determined during power-on by connecting pins TRXD0 and TRXD1 to ground for node configuration, or connecting pin TRXD0 or TRXD1 to VBUF for star configuration.

What mechanisms allow the TJA1080 to wake up from low power modes?

Wake-up can be triggered via a wake-up symbol on the bus lines (remote), a negative edge on the WAKE pin (local), or a positive edge on the STBN pin if VIO is present.

Does the TJA1080 support external voltage regulator control?

Yes, the device includes two inhibit switch outputs, INH1 and INH2, which can be used to switch external voltage regulators to manage power consumption.