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NXP Semiconductors - FlexRay active star coupler

Numéro de référence TJA1085
Description FlexRay active star coupler
Fabricant NXP Semiconductors 
Logo NXP Semiconductors 





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TJA1085 fiche technique
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 Physicalhttp://www.DataSheet4U.net/ 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
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/

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