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參數資料

MC75172B MC75174B

MOTOROLA ANALOG IC DEVICE DATA

Figure 18. Typical EIA–485 System

NOTES:

1.Terminating resistors RT must be located at the physical ends of the cable.

2.Stubs should be as short as possible.

3.Circuit ground of all drivers and receivers must be connected via a dedicated wire within the cable.

Do not rely on chassis ground or power line ground.

TTL

5 “off” drivers (@ 0.06 U.L. each),

+8 receivers (@ 1.0 U.L. each) = 8.3 Unit Loads

RT = 120

at each end of the cable.

120

Twisted

Pair

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相關代理商/技術參數	參數描述
MC75174B	制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:QUAD EIA-485 LINE DRIVERS WITH THREE-STATE OUTPUTS
MC75174BDW	功能描述:RS-485接口IC Quad EIA-485 Line RoHS:否制造商:Texas Instruments 數據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC75174BDWG	功能描述:RS-485接口IC Quad EIA-485 Line Driver w/3 State Out RoHS:否制造商:Texas Instruments 數據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC75174BDWR2	功能描述:RS-485接口IC Quad EIA-485 Line RoHS:否制造商:Texas Instruments 數據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube
MC75174BDWR2G	功能描述:RS-485接口IC Quad EIA-485 Line Driver w/3 State Out RoHS:否制造商:Texas Instruments 數據速率:250 Kbps 工作電源電壓:3.3 V 電源電流:750 uA 工作溫度范圍:- 40 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube

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