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SN65LBC172A Datasheet(PDF) 2 Page - Texas Instruments |
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SN65LBC172A Datasheet(HTML) 2 Page - Texas Instruments |
2 / 22 page SN65LBC172A, SN75LBC172A QUADRUPLE RS485 DIFFERENTIAL LINE DRIVERS SLLS447C − OCTOBER 2000 − REVISED AUGUST 2008 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) These devices are optimized for balanced multipoint bus transmission at signalling rates up to 30 million bits per second. The transmission media may be printed-circuit board traces, backplanes, or cables. The ultimate rate and distance of data transfer is dependent upon the attenuation characteristics of the media and the noise coupling to the environment. Each driver features current limiting and thermal-shutdown circuitry making it suitable for high-speed mulitpoint data transmission applications in noisy environments. These devices are designed using LinBiCMOS t, facilitating low power consumption and robustness. The G and G inputs provide driver enable control using either positive or negative logic. When disabled or powered off, the driver outputs present a high-impedance to the bus for reduced system loading. The SN75LBC172A is characterized for operation over the temperature range of 0 °C to 70°C. The SN65LBC172A is characterized over the temperature range from –40 °C to 85°C. AVAILABLE OPTIONS PACKAGE TA 16-PIN PLASTIC SMALL OUTLINE† (JEDEC MS-013) 20-PIN PLASTIC SMALL OUTLINE† (JEDEC MS-013) 16-PIN PLASTIC THROUGH-HOLE (JEDEC MS-001) 0 °C to 70°C SN75LBC172A16DW SN75LBC172ADW SN75LBC172AN 0 °C to 70°C Marked as 75LBC172A −40 °C to 85°C SN65LBC172A16DW SN65LBC172ADW SN65LBC172AN −40 °C to 85°C Marked as 65LBC172A † Add R suffix for taped and reeled version. FUNCTION TABLE (EACH DRIVER) INPUT ENABLES OUTPUTS A G G Y Z L H X L H L X L L H H H X H L H X L H L OPEN H X H L OPEN X L H L H OPEN X H L L OPEN X L H X L H Z Z X L OPEN Z Z H = high level, L = low level, X = irrelevant, Z = high impedance (off) |
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