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SP483 Datasheet(PDF) 6 Page - Exar Corporation |
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SP483 Datasheet(HTML) 6 Page - Exar Corporation |
6 / 13 page 5 Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com SP483_SP485_0_0627 PARAMETERS MIN. TYP. MAX. UNITS CONDITIONS SP483 DRIVER AC Characteristics Maximum Date Rate 250 kbps Driver Input to Output, t PLH 250 800 2000 ns t PLH; RDIFF = 54Ω, CL = CL2 = 00pF, see figures 3 and 5 Driver Input to Output, t PHL 250 800 2000 ns t PHL; RDIFF = 54Ω, CL = CL2 = 00pF, see figures 3 and 5 Driver Skew 00 800 ns see figures 3 and 5, t SKEW = |tDPHL - tDPLH| Driver Rise or Fall Time 250 2000 ns From 0%-90%; R DIFF = 54Ω C L = CL2 = 00pF; see Figures 3 and 5 Driver Enable to Output High 250 2000 ns C L = 100pF, see figures 4 and 6, S 2 closed Driver Enable to Output Low 250 2000 ns C L = 100pF, see figures 4 and 6, S closed Driver Disable Time from High 300 3000 ns C L = 15pF, see figures 4 and 6, S 2 closed Driver Disable Time from Low 300 3000 ns C L = 15pF, see figures 4 and 6, S closed SP483 RECEIVER AC Characteristics Maximum Data Rate 250 kbps Receiver Input to Output 250 2000 ns t PLH, tPHL; Figures 3 and 7: R DIFF = 54Ω, CL = CL2 = 00pF Differential Receiver Skew |t PHL - tPLH| 00 ns R DIFF = 54Ω, CL = CL2 = 00pF, see Figures 3 and 7 Receiver Enable to Output Low 20 50 ns C RL = 5pF, Figures 2 and 8; S Closed Receiver Enable to Output High 20 50 ns C RL = 5pF, Figures 2 and 8; S 2 Closed Receiver Disable from LOW 20 50 ns C RL = 5pF, Figures 2 and 8; S Closed Receiver Disable from High 20 50 ns C RL = 5pF, Figures 2 and 8; S 2 Closed SP483 Shutdown Timing Time to Shutdown 50 200 600 ns RE = 5V, DE = 0V Driver Enable from Shutdown to Output High 2000 ns C L = 00pF; See Figures 4 and 6; S 2 Closed Driver Enable from Shutdown to Output Low 2000 ns C L = 00pF; See Figures 4 and 6; S Closed Receiver Enable from Shutdown to Output High 2500 ns C L = 5pF; See Figures 4 and 6; S 2 Closed Receiver Enable from Shutdown to Output Low 2500 ns C L = 5pF; See Figures 4 and 6; S Closed T MIN to TMAX and VCC = 5V +/-5% unless otherwise noted. ELECTRICAL CHARACTERISTICS |
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