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XR3072XED-F Datasheet(PDF) 6 Page - Exar Corporation |
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XR3072XED-F Datasheet(HTML) 6 Page - Exar Corporation |
6 / 24 page XR3070-78X 6 LOW POWER 18V TOLERANT RS-485/RS-422 +3.3V TRANSCEIVERS REV. 1.0.2 DRIVER AC CHARACTERISTICS XR3070X, XR3071X and XR3072X (250kbps) tDPLH Driver Prop. Delay (Low to High) 250 1500 ns CL = 50pF, RL = 54, Figure 7 tDPHL Driver Prop. Delay (High to Low) 250 1500 ns |t DPLH-tDPHL| Differential Driver Output Skew 20 200 ns tDR, tDF Driver Differential Output Rise or Fall Time 350 1600 ns Maximum Data Rate 250 kbps 1/tUI, Duty Cycle 40 to 60% tDZH Driver Enable to Output High 200 2500 ns CL = 50pF, RL = 500, Figure 8 tDZL Driver Enable to Output Low 200 2500 ns tDHZ Driver Disable from Output High 6 100 ns tDLZ Driver Disable from Output Low 6 100 ns tDZH(SHDN) Driver Enable from Shutdown to Output High 5500 ns CL = 50pF, RL = 500, Figure 8 tDZL(SHDN) Driver Enable from Shutdown to Output Low 5500 ns tSHDN Time to Shutdown 50 200 600 ns Notes 3 and 4 RECEIVER AC CHARACTERISTICS XR3070X, XR3071X and XR3072X (250kbps) tRPLH Receiver Prop. Delay (Low to High) 200 ns CL = 15pF, VID = ±2V, VID Rise and Fall times < 15ns Figure 9 tRPHL Receiver Prop. Delay (High to Low) 200 ns |t RPLH-tRPHL| Receiver Propagation Delay Skew 30 ns Maximum Data Rate 250 kbps 1/tUI, Duty Cycle 40 to 60% tRZH Receiver Enable to Output High 50 ns CL = 15pF, RL = 1k, Figure 10 tRZL Receiver Enable to Output Low 50 ns tRHZ Receiver Disable from Output High 50 ns tRLZ Receiver Disable from Output Low 50 ns tRZH(SHDN) Receiver Enable from Shutdown to Output High 3500 ns CL = 15pF, RL = 1k, Figure 10 tRZL(SHDN) Receiver Enable from Shutdown to Output Low 3500 ns tSHDN Time to Shutdown 50 200 600 ns Notes 3 and 4 Unless otherwise noted: VCC = +3.3V ±10%, TA = TMIN to TMAX. Typical values are at VCC = 3.3V, TA = +25°C. SYMBOL PARAMETERS MIN.TYP.MAX.UNITS CONDITIONS |
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