|
UJA1075 Datasheet, PDF (1/53 Pages) NXP Semiconductors – High-speed CAN/LIN core system basis chip | |||
|
UJA1075
High-speed CAN/LIN core system basis chip
Rev. 02 â 27 May 2010
Product data sheet
1. General description
The UJA1075 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 a Local Interconnect Network (LIN) interface.
The UJA1075 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
interface as a local sub-bus.
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 transceiver compliant with LIN 2.1, LIN 2.0 and SAE J2602, and compatible with
LIN 1.3
⢠Advanced independent watchdog (UJA1075/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 system start-up behavior
⢠Detailed status reporting on system and sub-system levels
The UJA1075 is designed to be used in combination with a microcontroller that
incorporates a CAN controller. The SBC ensures that the microcontroller always starts up
in a controlled manner.
|
▷ |