| ■ 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 |
| 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. |
| Low-Power RS-485 Transceivers Low-Power RS-422 Transceivers Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks |
| 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 |
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| 厂家 | ETC [ETC] |
| 简要 描述 |
RS-422 AND RS-485 APPLICATION NOTE |
| A | B | C | D | E | F | G | H | I | J |
| K | L | M | N | O | P | Q | R | S | T |
| U | V | W | X | Y | Z | 0 | 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | 9 |
| HLMP-AL16-QRRxx |
| EFRRxxxx |
| HLMP-AL16-QRRYY |
| HLMP-AL16-QRRZZ |
| RS-485 |
| RS-0505/H2 |
| RS-0505/H3 |
| RS-0505D/H2 |