ds1489 National Semiconductor Corporation, ds1489 Datasheet
ds1489
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ds1489 Summary of contents
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... DS1489/DS1489A Quad Line Receiver General Description The DS1489/DS1489A are quad line receivers designed to interface data terminal equipment with data communications equipment. They are constructed on a single monolithic sili- con chip. These devices satisfy the specifications of EIA Standard RS-232D. The DS1489/DS1489A meet and ex- ceed the specifications of MC1489/MC1489A and are pin-for-pin replacements ...
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AC Test Circuit and Voltage Waveforms www.national.com DS005777-3 DS005777-4 FIGURE 1. 2 ...
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... The table of “Electrical Characteristics” provides conditions for actual device operation. Note 3: Unless otherwise specified min/max limits apply across the 0˚C to +75˚C temperature range for the DS1489 and DS1489A. ...
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... Typical Characteristics FIGURE 2. Input Current FIGURE 3. DS1489 Input Threshold Voltage Adjustment FIGURE 4. DS1489A Input Threshold Voltage Adjustment www.national.com = 5.0V +25˚C unless otherwise noted DS005777-7 FIGURE 5. Input Threshold Voltage vs Temperature DS005777-8 FIGURE 6. Input Threshold vs Power Supply Voltage DS005777-9 FIGURE 7. Noise Rejection vs Capacitance for ...
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... Typical Application Information *Optional for noise filtering. Applications Using the Response Control Pin Noise Filter See Figure 7 DS005777-13 Application of DS1488, DS1489A and INS8250 Threshold Shift Noise Filter and Threshold Shift See Figures 3, 4 See Figures DS005777-14 DS005777-16 5 DS005777-5 DS005777-15 www.national.com ...
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... Physical Dimensions inches (millimeters) unless otherwise noted Order Number DS1489M or DS1489AM Order Number DS1489N or DS1489AN SO Package (M) NS Package Number M14A Molded Dual-In-Line Package (N) NS Package Number N14A 7 www.national.com ...
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LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DE- VICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMI- CONDUCTOR CORPORATION. As used herein: 1. Life support devices ...