UJA1069TW PHILIPS [NXP Semiconductors], UJA1069TW Datasheet

UJA1069TW

Manufacturer Part Number

UJA1069TW

Description

LIN fail-safe system basis chip

Manufacturer

PHILIPS [NXP Semiconductors]

Datasheet

1.UJA1069TW.pdf (64 pages)

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1. General description

The UJA1069 fail-safe System Basis Chip (SBC) replaces basic discrete components

which are common in every Electronic Control Unit (ECU) with a Local Interconnect

Network (LIN) interface. The fail-safe SBC supports all networking applications which

control various power and sensor peripherals by using LIN as a local sub-bus. 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 UJA1069 is designed to be used in combination with a microcontroller and a LIN

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 the microcontroller

function for as long as possible, to provide full monitoring and software driven fall-back

operation.

The UJA1069 is designed for 14 V single power supply architectures and for 14 V and

42 V dual power supply architectures.

•

UJA1069

LIN fail-safe system basis chip

Rev. 02 — 5 March 2007

LIN transceiver compliant with LIN 2.0 and SAE J2602, and compatible with LIN 1.3

Advanced independant watchdog

Dedicated voltage regulator for microcontroller

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 sub-system levels

Preliminary data sheet

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