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ISL3155EIUZ датащи(PDF) 1 Page - Intersil Corporation |
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ISL3155EIUZ датащи(HTML) 1 Page - Intersil Corporation |
1 / 22 page 1 ±16.5kV ESD, Large Output Swing, 5V, Full Fail-Safe, 1/8 Unit Load, RS-485/RS-422 Transceivers ISL3150E, ISL3152E, ISL3153E, ISL3155E, ISL3156E, ISL3158E The ISL315xE are IEC61000 ESD protected, 5V powered transceivers that meet the RS-485 and RS-422 standards for balanced communication. Driver outputs and receiver inputs are protected against ±16.5kV ESD strikes without latch-up. Transmitters in this family deliver exceptional differential output voltages (2.4V min), into the RS-485 required 54Ω load, for better noise immunity, or to allow up to eight 120Ω terminations in “star” topologies. These devices have very low bus currents so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers on the network without using repeaters. Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or on a terminated but undriven bus. Rx outputs feature high drive levels - typically 28mA @ VOL = 1V (to ease the design of optocoupled isolated interfaces). Half duplex (Rx inputs and Tx outputs multiplexed together) and full duplex pinouts are available. See Table 1 on page 2 for key features and configurations by device number. Features •High Driver VOD . . . . . . . 2.4V (Min) @ RD = 54Ω Better Noise Immunity, or Drive Up to 8 Terminations • ±16.5kV IEC61000 ESD Protection on I/O Bus Pins • High Transient Overvoltage Tolerance . . . . ±100V • Full Fail-safe (Open, Short, Terminated) Receivers •High Rx IOL for Opto-Couplers in Isolated Designs • Hot Plug Circuitry - Tx and Rx Outputs Remain Three-State During Power-up/Power-down • True 1/8 Unit Load for up to 256 Devices on the Bus • High Data Rates . . . . . . . . . . . . . . up to 20Mbps • Low Quiescent Supply Current . . . . . . . . . 600µA Ultra Low Shutdown Supply Current . . . . . . 70nA Applications*(see page 17) • Utility Meters/Automated Meter Reading Systems • High Node Count Systems • PROFIBUS® and Field Bus Networks, and Factory Automation • Security Camera Networks • Building Lighting and Environmental Control Systems • Industrial/Process Control Networks Exceptional Tx Drives Up To 8 Terminations While Still Delivering 1.5V VOD Large VOD Delivers Superior Signal At Cable End For Enhanced Noise Immunity DIFFERENTIAL OUTPUT VOLTAGE (V) 0 123 45 0 10 40 60 80 100 120 140 30 50 70 90 110 130 20 8 TERMS 6 TERMS 2 TERMS 1 TERM 1.5 20ns/DIV -3 -1 0 1 3 -2 2 20Mbps, 150’ UTP, DOUBLE 120Ω TERMS ISL3158E STANDARD 1.5V TX CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright © Intersil Americas Inc. 2006-2009 All Rights Reserved All other trademarks mentioned are the property of their respective owners. July 30, 2009 FN6363.2 |
Аналогичный номер детали - ISL3155EIUZ |
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Аналогичное описание - ISL3155EIUZ |
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