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ISL3259EIUZ датащи(PDF) 1 Page - Intersil Corporation |
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ISL3259EIUZ датащи(HTML) 1 Page - Intersil Corporation |
1 / 16 page 1 ® FN6587.1 ISL3259E ±15kV ESD Protected, 100Mbps, 5V, PROFIBUS®, Full Fail-safe, RS-485/RS-422 Transceivers Intersil’s ISL3259E is a ±15kV IEC61000 ESD Protected, 5V powered, single transceiver that meets both the RS-485 and RS-422 standards for balanced communication. It also features the larger output voltage and higher data rate (up to 100Mbps) required by high speed PROFIBUS applications. The low bus currents (+220µA/-150µA) present a “1/5 unit load” to the RS-485 bus, thus allowing up to 160 transceivers on the network without violating the RS-485 specification’s load limit, and without using repeaters. This transceiver requires a 5V supply, and delivers at least a 2.1V differential output voltage. This translates into better noise immunity (data integrity), longer reach, or the ability to drive up to six 120 Ω terminations in “star” or other non-standard bus topologies. SCSI applications benefit from the ISL3259’s low receiver and transmitter part-to-part skews, which make it perfect for high speed parallel applications where large numbers of bits must be simultaneously captured. The low bit-to-bit skew eases the timing constraints on the data latching signal. Receiver (Rx) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or terminated but undriven. Rx outputs feature high drive levels (typically >30mA @ VOL = 1V) to ease the design of optically isolated interfaces. Hot Plug circuitry ensures that the Tx and Rx outputs remain in a high impedance state while the power supply stabilizes. Driver (Tx) outputs are short circuit protected, even for voltages exceeding the power supply voltage. Additionally, on-chip thermal shutdown circuitry disables the Tx outputs to prevent damage if power dissipation becomes excessive. Features • IEC61000 ESD Protection on RS-485 I/O Pins . . . ±15kV - Class 3 HBM ESD Level on all Other Pins . . . . . . >9kV • Large Differential VOUT . . . . . . . . . . . . . . . 2.8V into 54Ω Better Noise Immunity, or Drive up to 6 Terminations • Very High Data Rate . . . . . . . . . . . . . . . . up to 100Mbps • 11/13ns (Max) Tx/Rx Propagation Delays; 1.5ns (Max) Skew • 1/5 Unit Load Allows up to 160 Devices on the Bus • Full Fail-Safe (Open, Shorted, Terminated/Undriven) Receiver • High Rx IOL to Drive Opto-Couplers for Isolated Applications • Hot Plug - Tx and Rx Outputs Remain Three-State During Power-Up • Low Quiescent Supply Current . . . . . . . . . . . . . . . . . 4mA • Low Current Shutdown Mode. . . . . . . . . . . . . . . . . . . 1µA • -7V to +12V Common Mode Input Voltage Range • Three-State Rx and Tx Outputs • Operates from a Single +5V Supply • Current Limiting and Thermal Shutdown for Driver Overload Protection • Pb-Free (RoHS Compliant) Applications •PROFIBUS® DP and FMS Networks • SCSI “Fast 40” Drivers and Receivers • Motor Controller/Position Encoder Systems • Factory Automation • Field Bus Networks • Security Networks • Building Environmental Control Systems • Industrial/Process Control Networks Data Sheet February 18, 2008 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. 2007, 2008. All Rights Reserved All other trademarks mentioned are the property of their respective owners. |
Аналогичный номер детали - ISL3259EIUZ |
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Аналогичное описание - ISL3259EIUZ |
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