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參數(shù)資料
| 型號： | UJA1065 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | High-speed CAN/LIN fail-safe system basis chip |
| 中文描述： | 高速的CAN / LIN故障防護(hù)系統(tǒng)基礎(chǔ)芯片 |
| 文件頁數(shù)： | 14/67頁 |
| 文件大小： | 285K |
| 代理商： | UJA1065 |
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9397 750 14409
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Objective data sheet
Rev. 01 — 10 August 2005
14 of 67
Philips Semiconductors
UJA1065
High-speed CAN/LIN fail-safe system basis chip
In Standby and in Flash mode the nominal periods can be changed with any SPI access
to the Mode register.
Any illegal watchdog trigger code results in an immediate system reset, entering Start-up
mode.
6.4.4
Watchdog OFF behavior
In Standby and Sleep mode it is possible to switch off the watchdog entirely. For fail-safe
reasons this is only possible if the microcontroller has stopped program execution. To
ensure that there is no program execution, the V1 supply current is monitored by the SBC
while the watchdog is switched off.
When selecting the watchdog OFF code, the watchdog remains active until the
microcontroller supply current has dropped below the current monitoring threshold I
thL(V1)
.
After the supply current has dropped below the threshold, the watchdog stops at the end
of the watchdog period. In case the supply current does not drop below the monitoring
threshold, the watchdog stays active.
If the microcontroller supply current increases above I
thH(V1)
while the Watchdog is OFF,
the watchdog is restarted with the last used watchdog period time and a watchdog restart
interrupt is forced, if enabled.
In case of a direct mode change towards Standby Mode with watchdog OFF selected, the
longest possible watchdog period is used. It should be noted that in Sleep mode V1
current monitoring is not active.
Fig 5.
Watchdog triggering using Time-out mode
mce627
trigger
via SPI
earliest
possible
trigger
point
latest
possible
trigger
point
trigger restarts period
(with different duration if
desired)
new period
trigger range
trigger range
time-out
time-out
period
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UJA1065TW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:High-speed CAN/LIN fail-safe system basis chip |
| UJA1065TW/3V0 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC HI SPEED CAN SYSTEM RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| UJA1065TW/3V0,512 | 功能描述:CAN 接口集成電路 HI SPEED CAN SYSTEM RoHS:否 制造商:Texas Instruments 類型:Transceivers 工作電源電壓:5 V 電源電流: 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:SOIC-8 封裝:Tube |
| UJA1065TW/3V0,518 | 功能描述:網(wǎng)絡(luò)控制器與處理器 IC HI SPEED CAN SYSTEM RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| UJA1065TW/3V0512 | 制造商:NXP Semiconductors 功能描述:CONTROLLER SYS CAN/LIN 3V 32HTSSOP |
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