LMS485CM NSC [National Semiconductor], LMS485CM Datasheet
LMS485CM
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LMS485CM Summary of contents
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LMS485 5V Low Power RS-485 / RS-422 Differential Bus Transceiver General Description The LMS485 is a low power differential bus/line transceiver designed for high speed bidirectional data communication on multipoint bus transmission lines designed for balanced transmission lines. ...
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Connection Diagram Truth Table DRIVER SECTION RECEIVER SECTION Note Non Terminated, Open Input only X = Irrelevant Z = TRI-STATE H = High level L = Low level Pin ...
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... Ordering Information Package Part Number LMS485CM LMS485CMX 8-Pin SOIC LMS485IM LMS485IMX LMS485CNA 8-Pin DIP LMS485INA Package Marking Transport Media 95 Units/Rail LMS485CM 2.5k Units Tape and Reel 95 Units/Rail LMS485IM 2.5k Units Tape and Reel LMS485CNA 40 Units/Rail LMS485INA 40 Units/Rail 3 NSC Drawing M08A N08E www.national.com ...
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Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage, V (Note 2) CC Input Voltage, V (DI, DE, or RE) IN Voltage Range at Any Bus ...
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Electrical Characteristics Over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) Symbol Parameter V CMOS High-level Output OH Voltage V CMOS Low-level OL I Tristate Output Leakage OZR Current R Input Resistance IN Power Supply Current ...
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Typical Performance Characteristics Output Current vs. Receiver Output Low Voltage Receiver Output High Voltage vs. Temperature Driver Output Current vs. Differential Output Voltage www.national.com Output Current vs. Receiver Output High Voltage 20062613 Receiver Output Low-Voltage vs. Temperature 20062615 Driver Differential ...
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Typical Performance Characteristics Output Current vs. Driver Output Low Voltage Supply Current vs. Temperature (Continued) Output Current vs. Driver Output High Voltage 20062619 20062621 7 20062620 www.national.com ...
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Parameter Measuring Information FIGURE 3. Test Circuit for Driver Propagation Delay www.national.com FIGURE 1. Test Circuit for V and V OD FIGURE 2. Test Circuit for V FIGURE 4. Test Circuit for Driver Enable / Disable 8 20062603 OC 20062604 ...
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Parameter Measuring Information FIGURE 5. Test Circuit for Receiver Propagation Delay FIGURE 6. Test Circuit for Receiver Enable / Disable (Continued) 20062607 20062608 9 www.national.com ...
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Switching Characteristics FIGURE 7. Driver Propagation Delay, Rise / Fall Time FIGURE 8. Driver Enable / Disable Time www.national.com 20062609 FIGURE 9. Receiver Propagation Delay 20062610 FIGURE 10. Receiver Enable / Disable Time 10 20062611 20062612 ...
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Application Information POWER LINE NOISE FILTERING A factor to consider in designing power and ground is noise filtering. A noise filtering circuit is designed to prevent noise generated by the integrated circuit (IC) as well as noise entering the IC ...
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Physical Dimensions www.national.com inches (millimeters) unless otherwise noted 8-Pin SOIC NS Package Number M08A 8-Pin DIP NS Package Number N08E 12 ...
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LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support ...