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M75179P Datasheet(PDF) 4 Page - Mitsubishi Electric Semiconductor |
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M75179P Datasheet(HTML) 4 Page - Mitsubishi Electric Semiconductor |
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4 / 9 page  4 MITSUBISHI 〈DIGITAL ASSP〉 M75176P, M75177P M75178P, M75179P RS-485 TRANSCEIVER SWITCHING CHARACTERISTICS (Driver) (VCC = 5V, Ta=25 °C) Parameter Differential output delay time Differential output transition time Output “L - H” propagation delay time Output “H - L” propagation delay time “H” enable time “L” enable time “H” disable time “L” disable time Symbol tDD tTD tPLH tPHL tPZH tPZL tPHZ tPLZ Max. 25 25 25 25 35 35 25 35 Typ. 13 11 15 12 23 16 11 22 Min. Unit ns ns ns ns ns ns ns ns Limits Test conditions RL=54 Ω CL=50pF RL=27 Ω CL=50pF RL=110 Ω CL=50pF ELECTRICAL CHARACTERISTICS (Receiver) (VCC = 5V ± 5%, Ta = –20 ~ 75°C, unless otherwise noted) Parameter High threshold voltage Low threshold voltage Hysteresis width (Note 4) Enable input clamp voltage “H” output voltage “L” output voltage Off-state output current Line input current “H” enable input current “L” enable input current Input resistance Output short-circuit current Supply voltage Symbol VTH VTL VT+ - VT– VIK VOH VOL IOZ II IIH IIL ri IOS ICC Max. 0.2 –1.5 0.45 0.5 ±20 –400 20 1 –0.8 20 –100 –400 –85 48 48 Typ.* 50 3.6 0.23 0.30 Min. –0.2 2.7 12 –15 Unit V V mV V V V mA mA mA mA k Ω mA mA Limits Test conditions VO=2.7V, IO=–0.4mA VO=0.5V, IO=16mA II=–18mA VID=0.2V, IOH=–0.4mA VID=–0.2V VO=0.4 ~ 2.4V VO=0.4V VO=2.4V Other input 0V VIH=2.7V VIL=0.4V VO=0V No output load See Fig. 2. See Fig. 3. See Figs. 4 & 5. IOL=8mA IOL=16mA VO=12V VO=–7V Output enable Output disable 75176 75177/178 75176/177/178 75176 75177/178 *: The standard value is given on the condition of VCC = 5V and Ta = 25 °C. Note 4: The hysteresis width is the difference between positive threshold voltage VT+ and negative threshold voltage VT–. SWITCHING CHARACTERISTICS (Receiver) (VCC = 5V, Ta=25 °C) Parameter Output “L - H” propagation delay time Output “H - L” propagation delay time “H” enable time “L” enable time “H” disable time “L” disable time Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ Max. 35 35 20 20 35 35 Typ. 22 19 9 11 17 22 Min. Unit ns ns ns ns ns ns Limits Test conditions CL=15pF CL=15pF CL=15pF See Fig. 6. See Fig. 7. See Fig. 7. |
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