UJA1078A

UJA1078A High-speed CAN/dual LIN core system basis chip Rev. 2 — 28 January 2011 Product data sheet 1. 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; extendable with external PNP transistor for increased current capability and dissipation distribution Separate voltage regulator for supplying the on-board CAN transceiver Serial Peripheral Interface (SPI) (full duplex) 2 local wake-up input ports Limp home output port In addition to the advantages gained from integrating these common ECU functions in a single package, the core SBC offers an intelligent combination of system-specific functions such as: Advanced low-power concept Safe and controlled sy...