參數(shù)資料
型號(hào): TJA1050
廠商: NXP Semiconductors N.V.
英文描述: CAN High-Speed Transceiver(CAN高速收發(fā)器)
中文描述: CAN高速收發(fā)器(的CAN高速收發(fā)器)
文件頁(yè)數(shù): 25/31頁(yè)
文件大小: 254K
代理商: TJA1050
TJA1050 - CAN High-Speed Transceiver
Application Note
AN00020
Philips Semiconductors
25
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Because of a general pin and functional compatibility an easy migration of existing PCA82C250
applications towards the TJA1050 is possible. Using the TJA1050 instead of the PCA82C250 in existing
bus systems needs consideration of two different aspects: Interoperability and compatibility.
Interoperability means the ability of the PCA82C250 and the TJA1050 to work together in the same bus
network, while the term compatibility includes issues like pinning, operation modes, supply voltage range,
interfacing to the bus and to the CAN-controller, external circuits etc.
Since both, the PCA82C250 and TJA1050, are compatible with the ISO11898 standard, it is guaranteed
that both transceivers are interoperable and thus are able to work together in the same bus network.
Compatibility issues are discussed in the following subchapters.
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The PCA82C250 and TJA1050 have the same pinning. Thus PCBs which had been initially developed for
the PCA82C250 can be used in most cases for the TJA1050 as well.
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Both transceivers use pin 8 for mode selection. The slope control mode of the PCA82C250 is not
supported by the TJA1050. A resistor at pin 8 formerly used in PCA82C250 applications to adjust the
slope is not needed any more. A HIGH signal at pin 8 activates the standby mode in case of the
PCA82C250 with reduced current consumption [4]. Similar to this standby mode, now the silent mode of
the TJA1050 offers the possibility to disable the transmitter but without reducing the current
consumption. It will be selected in the same way with a HIGH at pin 8. Both transceivers are set into
high-speed mode with a LOW at pin 8.
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Whether the slope control resistor has to be removed depends on the application. There are two different
cases:
1. If the slope resistor is directly connected to GND, this resistor does not need to be removed.
2. If the slope resistor is connected to an output port of the microcontroller allowing the previous
application to switch between slope control and standby mode (with the PCA82C250), this resistor
has to be removed in order to allow switching between high-speed and silent mode (with the
TJA1050).
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The interfacing to the controller is performed as usual via the serial digital input TxD and the output
RxD. Notice that the TxD and pin "S" input thresholds have been decreased in order to guarantee that
3,3V supplied controllers are able to drive the inputs of the TJA1050. Conventional 5V supplied
controllers are supported as usual.
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相關(guān)代理商/技術(shù)參數(shù)
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TJA1050T 制造商:NXP Semiconductors 功能描述: 制造商:NXP Semiconductors 功能描述:LAN Transceiver, Single, 8 Pin, Plastic, SOP
TJA1050T/CM,118 功能描述:CAN 接口集成電路 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
TJA1050T/H/V,112 功能描述:網(wǎng)絡(luò)控制器與處理器 IC CAN 1MBd Silent 5V 8-Pin 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
TJA1050T/H/V,118 功能描述:網(wǎng)絡(luò)控制器與處理器 IC CAN 1MBd Silent 5V 8-Pin 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
TJA1050T/N,112 功能描述:網(wǎng)絡(luò)控制器與處理器 IC HIGH SPEED CAN TRANSCEIVER 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