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ISO7841FDWW Datasheet(PDF) 11 Page - Texas Instruments |
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ISO7841FDWW Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 37 page  11 ISO7841, ISO7841F www.ti.com SLLSEM3F – NOVEMBER 2014 – REVISED APRIL 2016 Product Folder Links: ISO7841 ISO7841F Submit Documentation Feedback Copyright © 2014–2016, Texas Instruments Incorporated (1) Also known as pulse skew. (2) tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. (3) tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. 6.12 Switching Characteristics—5-V Supply VCC1 = VCC2 = 5 V ±10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH, tPHL Propagation delay time See Figure 7 6 11 16 ns PWD Pulse width distortion(1) |tPHL – tPLH| 0.55 4.1 ns tsk(o) Channel-to-channel output skew time(2) Same-direction channels 2.5 ns tsk(pp) Part-to-part skew time(3) 4.5 ns tr Output signal rise time See Figure 7 1.7 3.9 ns tf Output signal fall time 1.9 3.9 ns tPHZ Disable propagation delay, high-to-high impedance output See Figure 8 12 20 ns tPLZ Disable propagation delay, low-to-high impedance output 12 20 ns tPZH Enable propagation delay, high impedance-to-high output for ISO7841 10 20 ns Enable propagation delay, high impedance-to-high output for ISO7841F 2 2.5 μs tPZL Enable propagation delay, high impedance-to-low output for ISO7841 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7841F 10 20 ns tfs Default output delay time from input power loss Measured from the time VCC goes below 1.7 V. See Figure 9 0.2 9 μs tie Time interval error 216 – 1 PRBS data at 100 Mbps 0.90 ns (1) Also known as Pulse Skew. (2) tsk(o) is the skew between outputs of a single device with all driving inputs connected together and the outputs switching in the same direction while driving identical loads. (3) tsk(pp) is the magnitude of the difference in propagation delay times between any terminals of different devices switching in the same direction while operating at identical supply voltages, temperature, input signals and loads. 6.13 Switching Characteristics—3.3-V Supply VCC1 = VCC2 = 3.3 V ±10% (over recommended operating conditions unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH, tPHL Propagation delay time See Figure 7 6 10.8 16 ns PWD Pulse width distortion(1) |tPHL – tPLH| 0.7 4.2 ns tsk(o) Channel-to-channel output skew time(2) Same-direction channels 2.2 ns tsk(pp) Part-to-part skew time(3) 4.5 ns tr Output signal rise time See Figure 7 0.8 3 ns tf Output signal fall time 0.8 3 ns tPHZ Disable propagation delay, high-to-high impedance output See Figure 8 17 32 ns tPLZ Disable propagation delay, low-to-high impedance output 17 32 ns tPZH Enable propagation delay, high impedance-to-high output for ISO7841 17 32 ns Enable propagation delay, high impedance-to-high output for ISO7841F 2 2.5 μs tPZL Enable propagation delay, high impedance-to-low output for ISO7841 2 2.5 μs Enable propagation delay, high impedance-to-low output for ISO7841F 17 32 ns tfs Default output delay time from input power loss Measured from the time VCC goes below 1.7 V. See Figure 9 0.2 9 μs tie Time interval error 216 – 1 PRBS data at 100 Mbps 0.91 ns |
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