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SN75LBC187 Datasheet(PDF) 4 Page - Texas Instruments |
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SN75LBC187 Datasheet(HTML) 4 Page - Texas Instruments |
4 / 12 page SN75LBC187 MULTICHANNEL EIA-232 DRIVER/RECEIVER WITH CHARGE PUMP SLLS130C – SEPTEMBER 1991 – REVISED MAY 1995 4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 switching characteristics over recommended operating conditions, TA = 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN MAX UNIT tPLH Propagation delay time low to high level output Receiver RL = 5 kΩ, See Figure 1 CL = 50 pF, 1.25 µs tPLH Propagation delay time, low- to high-level output Driver RL = 3 kΩ, See Figure 2 CL = 1200 pF, 1.25 µs tPHL Propagation delay time high to low level output Receiver RL = 5 kΩ, See Figure 1 CL = 50 pF, 1.25 µs tPHL Propagation delay time, high- to low-level output Driver RL = 3 kΩ, See Figure 2 CL = 1200 pF, 1.25 µs t Rise time driver output RL = 3 kΩ, VO = – 3 V to 3 V, CL = 50 pF, See Note 2 200 ns tr Rise time, driver output RL = 3 kΩ, VO = – 3.3 V to 3.3 V, CL = 2500 pF, See Note 3 1.5 µs tf Fall time driver output RL = 3 kΩ, VO = 3 V to – 3 V CL = 50 pF, 200 ns tf Fall time, driver output RL = 3 kΩ, CL = 2500 pF, 15 µs L VO = 3.3 V to – 3.3 V L 1.5 µs NOTES: 2. The 200 ns for the output to change from – 3 V to 3 V (or vice versa) corresponds to the 30 V/ µs maximum slew rate of EIA/TIA-232-E, EIA/TIA-562, and ITU Recommendation V.28. 3. The more stringent requirement for transition times comes from the EIA/TIA-562, which requires the rise and fall times to be measured from 3.3 V. |
Similar Part No. - SN75LBC187_08 |
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Similar Description - SN75LBC187_08 |
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