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TJA1085 Dataheets PDF



Part Number TJA1085
Manufacturers NXP Semiconductors
Logo NXP Semiconductors
Description FlexRay active star coupler
Datasheet TJA1085 DatasheetTJA1085 Datasheet (PDF)

TJA1085 FlexRay active star coupler Rev. 1 — 23 October 2012 Product data sheet 1. General description The TJA1085 is a FlexRay active star coupler that can connect up to 4 branches of a FlexRay network. The TJA1085 is compliant with the FlexRay electrical physical layer specification V3.0.1 (see Ref. 1). Several TJA1085 devices can be connected via their TRXD0/1 interfaces to increase the number of branches in the network. A dedicated Communication Controller (CC) interface allows for integrat.

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TJA1085 FlexRay active star coupler Rev. 1 — 23 October 2012 Product data sheet 1. General description The TJA1085 is a FlexRay active star coupler that can connect up to 4 branches of a FlexRay network. The TJA1085 is compliant with the FlexRay electrical physical layer specification V3.0.1 (see Ref. 1). Several TJA1085 devices can be connected via their TRXD0/1 interfaces to increase the number of branches in the network. A dedicated Communication Controller (CC) interface allows for integration into an ECU. The TJA1085 supports low-power management by offering bus wake-up capability along with battery supply and voltage regulator control. The TJA1085 meets industry standards for EMC/ESD performance and provides enhanced bus error detection, low current consumption and unmatched asymmetric delay performance. The TJA1085 also fulfills the JASPAR requirements as defined by the Japanese car industry. 2. Features and benefits 2.1 General         Compliant with FlexRay Electrical Physical Layer specification V3.0.1. Fulfills JASPAR requirements 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 voltage Low-power management for battery-supplied ECUs Very low current consumption in AS_Sleep mode Leadless HVQFN44 package with improved Automated Optical Inspection (AOI) capability http://www.DataSheet4U.net/ 2.2 Functional  Supports autonomous active star operation independent of the host ensuring the TJA1085 remains active even if the host fails or is switched off  Branches can be independently configured  Branch extension via TRXD0/1 inner star interface  16-bit bidirectional SPI interface up to 2 Mbit/s for host communication  Full host control over branch status  Enhanced wake-up capability:  Remote wake-up via wake-up pattern and dedicated FlexRay data frames datasheet pdf - http://www.DataSheet4U.net/ NXP Semiconductors TJA1085 FlexRay active star coupler        Local wake-up via pin LWU  Wake-up source recognition  configurable per branch Enhanced supply voltage monitoring on VIO, VCC, VBUF and VBAT Auto I/O level adaptation to host controller supply voltage VIO Can be used in 14 V, 24 V and 48 V powered systems Enhanced bus error detection - detects short-circuit conditions on the bus Instant transmitter shut-down interface (BGE pin) Selective branch shut-down (partial networking) 2.3 Robustness  Bus pins protected against 8 kV ESD pulses according to HBM and 6 kV ESD pulses according to IEC61000-4-2  All pins protected against 1000 V ESD according to CDM  All pins protected against 200 V ESD according to MM  No reverse currents from the digital input pins to VIO or VCC when the TJA1085 is not powered up  Bus pins short-circuit proof to battery voltage (14 V, 24 V or 48 V) and ground  Overtemperature detection and protection  Bus pins protected against transients in automotive environment (.


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