uja1066 NXP Semiconductors, uja1066 Datasheet
uja1066
Manufacturer Part Number
uja1066
Description
High-speed Can Fail-safe System Basis Chip
Manufacturer
NXP Semiconductors
Datasheet
1.UJA1066.pdf
(69 pages)
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1. General description
The UJA1066 fail-safe System Basis Chip (SBC) replaces basic discrete components
which are common in every Electronic Control Unit (ECU) with a Controller Area Network
(CAN) interface. The fail-safe SBC supports all networking applications that control
various power and sensor peripherals by using high-speed CAN as the main network
interface. The fail-safe SBC contains the following integrated devices:
In addition to the advantages of integrating these common ECU functions in a single
package, the fail-safe SBC offers an intelligent combination of system-specific functions
such as:
The UJA1066 is designed to be used in combination with a microcontroller that
incorporates a CAN controller. The fail-safe SBC ensures that the microcontroller is
always started up in a defined manner. In failure situations, the fail-safe SBC will maintain
microcontroller functionality for as long as possible to provide a full monitoring and
software-driven fallback operation.
The UJA1066 is designed for 14 V single power supply architectures and for 14 V and
42 V dual power supply architectures.
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UJA1066
High-speed CAN fail-safe system basis chip
Rev. 02 — 5 May 2009
High-speed CAN transceiver, interoperable and downward compatible with CAN
transceiver TJA1041 and TJA1041A, and compatible with the ISO 11898-2 standard
and the ISO 11898-5 standard (in preparation)
Advanced independent watchdog
Dedicated voltage regulators for microcontroller and CAN transceiver
Serial peripheral interface (full duplex)
Local wake-up input port
Inhibit/limp-home output port
Advanced low-power concept
Safe and controlled system start-up behavior
Advanced fail-safe system behavior that prevents any conceivable deadlock
Detailed status reporting on system and subsystem levels
Product data sheet
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