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UJA1078A Datasheet High-speed CAN/dual LIN core system basis chip

Manufacturer: NXP Semiconductors

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General Description

The UJA1078A core System Basis Chip (SBC) replaces the basic discrete components commonly found in Electronic Control Units (ECU) with a high-speed Controller Area Network (CAN) and two Local Interconnect Network (LIN) interfaces.

The UJA1078A supports the networking applications used to control power and sensor peripherals by using a high-speed CAN as the main network interface and the LIN interfaces as local sub-busses.

The core SBC contains the following integrated devices: • High-speed CAN transceiver, inter-operable and downward compatible with CAN transceiver TJA1042, and compatible with the ISO 11898-2 and ISO 11898-5 standards • LIN transceivers compliant with LIN 2.1, LIN 2.0 and SAE J2602, and compatible with LIN 1.3 • Advanced independent watchdog (UJA1078A/xx/WD versions) • 250 mA voltage regulator for supplying a microcontroller;

Overview

UJA1078A High-speed CAN/dual LIN core system basis chip Rev.

2 — 28 January 2011 Product data sheet 1.

Key Features

  • 2.1 General.
  • Contains a full set of CAN and LIN ECU functions: ‹ CAN transceiver and two LIN transceivers ‹ Scalable 3.3 V or 5 V voltage regulator delivering up to 250 mA for a microcontroller and peripheral circuitry; an external PNP transistor can be connected for better heat distribution over the PCB ‹ Separate voltage regulator for the CAN transceiver (5 V) ‹ Watchdog with Window and Timeout modes and on-chip oscillator ‹ Serial Peripheral Interface (SPI) for communicating with th.

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