TJA1081B FlexRay node transceiver Rev. 1 4 June 2012 Product data sheet 1. General description The TJA1081B is a FlexRay node transceiver that is fully compliant with the FlexRay electrical physical layer specification V3.0.1 (see Ref. 1). In order to meet the JASPAR-specific requirements, it implements the Bu s driver increased voltage amplitude transmitter functional class. It is primarily intended for communication systems from 2.5 Mbit/s to 10 Mbit/s and provides an advanced interface between the protocol controller and the physical bus in a FlexRay network. The TJA1081B features enhanced low-power modes, optimized for ECUs that are permanently connected to the battery. The TJA1081B provides differential transmit capability to the network and differential receive capability to the FlexRay controller. It offers excellent EMC performance as well as effective ESD protection. The TJA1081B actively monitors system performance using dedicated error and status information (that can be read by any microcontroller), along with internal voltage and temperature monitoring. The TJA1081B supports mode control as used in the TJA1080A (see Ref. 3) and is fully function and footprint compatible with the TJA1081 (see Ref. 2). 2. Features and benefits 2.1 Optimized for time triggered communication systems Compliant with FlexRay electrical physical layer specification V 3.0.1 (see Ref. 1) Meets JASPAR requirements a s described in the B u s d ri ver i nc rea s ed voltag e amp litu de tran smitte r f un cti o nal cl ass Automotive product qualification in accordance with AEC-Q100 Data transfer rates from 2.5 Mbit/s to 10 Mbit/s Supports 60 ns minimum bit time at 400 mV differential input voltage Very low ElectroMagnetic Emissions (EME) to support unshielded cable, meeting latest industry standards Differential receiver with wide common-mode range for high ElectroMagnetic Immunity (EMI), meeting latest industry standards Auto I/O level adaptation to host controller supply voltage V IO Can be used in 14 V, 24 V and 48 V powered systems Instant transmitter shut-down interface (via BGE pin) Independent power supply ramp-up for V , V and V BAT CC IOTJA1081B NXP Semiconductors FlexRay node transceiver 2.2 Low-power management Low-power management including inhibit switch Very low current in Sleep and Standby modes V operating range: 4.75 V to 60 V BAT Gap-free specification Local and remote wake-up Supports remote wake-up via dedicated data frames Wake-up source recognition 2.3 Diagnosis (detection and signaling) Enhanced supply monitoring of V , V and V BAT CC IO Overtemperature detection Short-circuit detection on bus lines V power-on flag (first battery connection and cold start) BAT Clamping diagnosis on pin TXEN BGE status feedback 2.4 Protection Bus pins protected against 6 kV ESD pulses according to IEC61000-4-2 and HBM Pins V and WAKE protected against 6 kV ESD pulses according to IEC61000-4-2 BAT Bus pins protected against transients in automotive environment (according to ISO 7637 class C) Bus pins short-circuit proof to battery voltage (14 V, 24 V and 48 V) and ground Fail-silent behavior in the event of an undervoltage on pins V , V or V BAT CC IO Passive behavior of bus lines while the transceiver is not powered No reverse currents from the digital input pins to V or V when the transceiver is not IO CC powered 2.5 Functional classes according to FlexRay electrical physical layer specification (see Ref. 1) Bus driver voltage regulator control Bus driver - bus guardian interface Bus driver logic level adaptation Bus driver remote wake-up Bu s driver increased voltage amplitude transmitter (JASPAR) 3. Ordering information Table 1. Ordering information Type number Package Name Description Version TJA1081BTS SSOP16 SSOP16: plastic shrink small outline package 16 leads body width 5.3 mm SOT338-1 TJA1081B All information provided in this document is subject to legal disclaimers. NXP B.V. 2012. All rights reserved. Product data sheet Rev. 1 4 June 2012 2 of 45