UJA1069(2007) Ver la hoja de datos (PDF) - NXP Semiconductors.

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componentes Descripción

Fabricante

UJA1069
(Rev.:2007)

LIN fail-safe system basis chip

NXP Semiconductors. 

NXP Semiconductors

UJA1069

LIN fail-safe system basis chip

2.4 Fail-safe features

I Safe and predictable behavior under all conditions

I Programmable fail-safe coded window and time-out watchdog with on-chip oscillator,

guaranteeing autonomous fail-safe system supervision

I Fail-safe coded 16-bit SPI interface for the microcontroller

I Global enable pin for the control of safety-critical hardware

I Detection and detailed reporting of failures:

N On-chip oscillator failure and watchdog alerts

N Battery and voltage regulator undervoltages

N LIN-bus failures (short-circuits)

N TXD and RXD clamping situations and short-circuits

N Clamped or open reset line

N SPI message errors

N Overtemperature warning

I Rigorous error handling based on diagnostics

I Supply failure early warning allows critical data to be stored

I 23 bits of access-protected RAM is available e.g. for logging of cyclic problems

I Reporting in a single SPI message; no assembly of multiple SPI frames needed

I Limp-home output signal for activating application hardware in case system enters

Fail-safe mode (e.g. for switching on warning lights)

I Fail-safe coded activation of Software development mode and Flash mode

I Unique SPI readable device type identification

I Software-initiated system reset

3. Ordering information

Table 1. Ordering information

Type number

Package

Name

UJA1069TW[1]

HTSSOP32

UJA1069TW24[2] HTSSOP24

Description

Version

plastic thermal enhanced thin shrink small outline package; 32 leads; SOT549-1

body width 6.1 mm; lead pitch 0.65 mm; exposed die pad

plastic thermal enhanced thin shrink small outline package; 24 leads; SOT864-1

body width 4.4 mm; lead pitch 0.65 mm; exposed die pad

[1] UJA1069TW/5V0 is for the 5 V version; UJA1069TW/3V3 is for the 3.3 V version; UJA1069TW/3V0 is for the 3 V version.

[2] UJA1069TW24/5V0 is for the 5 V version; UJA1069TW24/3V3 is for the 3.3 V version; UJA1069TW/3V0 is for the 3 V version.

UJA1069_3

Product data sheet

Rev. 03 — 10 September 2007

© NXP B.V. 2007. All rights reserved.

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