TJA1082TT,112

Specialized Overview

The TJA1082TT,112 is a FlexRay node transceiver compliant with the FlexRay electrical physical layer specification V2.1 Rev. B and incorporating features from V3.0.1. It supports data transfer rates of 2.5 Mbit/s, 5 Mbit/s, and 10 Mbit/s. The device operates within a supply voltage range of 4.75 V to 5.25 V for VCC and 2.7 V to 5.5 V for VIO. It is housed in a TSSOP14 plastic thin shrink small outline package (SOT402-1). The component is qualified according to AEC-Q100 Grade 1 standards and supports operation in 14 V and 42 V powered systems.

Specialized Feature Summary

• Optimized for time-triggered communication systems with compliance to FlexRay specifications
• Features low power management including Standby mode and remote wake-up capabilities
• Provides enhanced diagnosis through status register readout via SPI and simple error indication modes
• Offers robust protection against ESD, short circuits, and transients in automotive environments

Specialized Applications

• Electronic Control Unit (ECU) applications typically switched by ignition or activated by a dedicated wake-up line
• Communication systems operating at data rates between 2.5 Mbit/s and 10 Mbit/s
• FlexRay network interfaces requiring advanced protocol controller to physical bus connectivity

Specialized Procurement Notes

Verify the specific ordering suffix '112' against current NXP documentation to confirm packaging details such as tape and reel specifications. Ensure compatibility with existing board layouts using the TSSOP14 package. Confirm that the component meets the required AEC-Q100 Grade 1 qualification for your automotive application before finalizing procurement.

Specialized Selection Notes

Select the TJA1082TT,112 for ECUs that do not require enhanced power management beyond standard Standby mode. It is suitable for systems where the node is switched by ignition or a dedicated wake-up line. Consider this part if you need compliance with FlexRay V2.1 Rev. B and V3.0.1 features. Verify that the host controller can interface with the SPI diagnostic features if detailed error monitoring is required.

Specialized Part Context

The TJA1082 is part of NXP's FlexRay transceiver family, designed to provide an interface between the protocol controller and the physical bus. It is distinct from other variants like the TJA1080 or TJA1083 by its specific feature set optimized for ignition-switched ECUs. The TTJ suffix indicates the TSSOP14 package variant.

Specialized Replacement Considerations

Check NXP's official longevity program for recommended replacements if production continuity is a concern. The datasheet mentions the TJA1081G as a recommended part for new designs replacing the TJA1081B, but direct substitution for the TJA1082 requires verifying functional and pin compatibility with newer FlexRay transceivers.