RS-422

目录 RS-422的PDF下载 RS-422的特点(Features) RS-422的说明(Description) RS-422的用途(Applications) RS-422的技术参数(Specifications) RS-422的全国供应商 快速发布RS-422的紧急采购！-->

RS-422的特点(Features)

■  For Fault-Tolerant Applications      HWD3430: ±80V Fault-Protected, Fail-Safe, 1/4      Unit Load, +3.3V, RS-485 Transceiver      HWD3440E–HWD3444E: ±15kV ESD-Protected,      ±60V Fault-Protected, 10Mbps, Fail-Safe,      RS-485/J1708 Transceivers ■  For Space-Constrained Applications      HWD3460–HWD3464: +5V, Fail-Safe, 20Mbps,      Profibus RS-485/RS-422 Transceivers      HWD3362: +3.3V, High-Speed, RS-485/RS-422      Transceiver in a SOT23 Package      HWD3280E–HWD3284E: ±15kV ESD-Protected,      52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422,      True Fail-Safe Receivers      HWD3293/HWD3294/HWD3295: 20Mbps, +3.3V,      SOT23, RS-855/RS-422 Transmitters ■  For Multiple Transceiver Applications      HWD3030E–HWD3033E:  ±15kV ESD-Protected,      +3.3V, Quad RS-422 Transmitters ■   For Fail-Safe Applications       HWD3080–HWD3089: Fail-Safe, High-Speed       (10Mbps), Slew-Rate-Limited RS-485/RS-422       Transceivers ■   For Low-Voltage Applications       HWD3483E/HWD3485E/HWD3486E/HWD3488E/       HWD3490E/HWD3491E: +3.3V Powered, ±15kV       ESD-Protected, 12Mbps, Slew-Rate-Limited,       True RS-485/RS-422 Transceivers

RS-422的说明(Description)

These transceivers draw between 120µA and 500µA ofsupply current when unloaded or fully loaded with disabled drivers. Additionally, the HWD481, HWD483, and HWD487have a low-current shutdown modeinwhichtheyconsumeonly 0.1µA. All parts operate from a single 5V supply. Drivers are short-circuit current limited and are protectedagainst excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safefeaturethatguarantees a logic-high output if the input is open circuit. The HWD487 and HWD1487 feature quarter-unit-loadreceiver input impedance, allowing up to 128 HWD487/HWD1487 transceivers on the bus. Full-duplex communi-cations are obtained using the HWD488–HWD491, whilethe HWD481, HWD483, HWD485, HWD487, and HWD1487are designed for half-duplex applications.

RS-422的用途(Applications)

Low-Power RS-485 Transceivers Low-Power RS-422 Transceivers Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks

RS-422的技术参数(Specifications)

Supply Voltage (VCC) .............................................................12V Control Input Voltage (RE, DE)...................-0.5V to (VCC + 0.5V) Driver Input Voltage (DI)............................-0.5V to (VCC + 0.5V) Driver Output Voltage (A, B).................................. -8V to +12.5V Receiver Input Voltage (A, B).................................-8V to +12.5V Receiver Output Voltage (RO).....................-0.5V to (VCC +0.5V) Continuous Power Dissipation (TA = +70°C) 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C.. 800mW 8-Pin SO (derate 5.88mW/°C above +70°C)................471mW 14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW 8-Pin µMAX (derate 4.1mW/°C above +70°C) .............830mW 8-Pin CERDIP (derate 8.00mW/°C above +70°C).........640mW 14-Pin CERDIP (derate 9.09mW/°C above +70°C).......727mW Operating Temperature Ranges HWD4_ _C_ _/HWD1487C_ A ............................0°C to +70°C HWD4_ _E_ _/HWD1487E_ A.......................... -40°C to +85°C HWD4_ _MJ_/HWD1487MJA ........................  55°C to +125°C Storage Temperature Range ....................... 65°C to +160°C Lead Temperature (soldering, 10sec)  .......................+300°C

RS-422的全国供应商

	供应商	型号	厂家	封装	批号	数量	备注	诚信积分	日期
	香港天龙国际贸易有限公司  深圳 0755-82235138	RS-422/3				29		4545	2009-7-4 15:08:45