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UM491EESE Datasheet(PDF) 5 Page - Union Semiconductor, Inc. |
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UM491EESE Datasheet(HTML) 5 Page - Union Semiconductor, Inc. |
5 / 17 page ________________________________________________________________________ http://www.union-ic.com Rev.04 Aug.2013 5/17 UM488/UM491 Switching Characteristics (VCC = +5V ± 5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) Parameter Symbol Test Conditions Min Typ Max Unit Driver Input-to-Output t DPLH Figures 5 and 7, R DIFF = 54Ω, C L1 = CL2 = 100pF 10 30 60 ns t DPHL 10 30 60 Driver Output Skew | tDPLH - tDPHL | tDSKEW Figures 5 and 7, R DIFF = 54Ω, C L1 = CL2 = 100pF 5 10 ns Driver Rise or Fall Time t DR, tDF Figures 5 and 7, R DIFF = 54Ω, C L1 = CL2 = 100pF 5 15 25 ns Maximum Data Rate f MAX 2.5 Mbps Driver Enable to Output High t DZH Figures 6 and 8, C L = 100pF, S2 closed 40 70 ns Driver Enable to Output Low t DZL Figures 6 and 8, C L = 100pF, S1 closed 40 70 ns Driver Disable Time from Low t DLZ Figures 6 and 8, C L = 15pF, S1 closed 40 70 ns Driver Disable Time from High t DHZ Figures 6 and 8, C L = 15pF, S2 closed 40 70 ns Receiver Input to Output t RPLH, t RPHL Figures 9 and 11; | VID | ≥2.0V; rise and fall time of V ID≤15ns 20 90 150 ns | tRPLH - tRPHL | Differential Receiver Skew t RSKD Figures 9 and 11; | VID | ≥2.0V; rise and fall time of V ID≤15ns 13 ns Receiver Enable to Output Low t RZL Figures 4 and 10, C L = 100pF, S1 closed 20 50 ns Receiver Enable to Output High t RZH Figures 4 and 10, C L = 100pF, S2 closed 20 50 ns Receiver Disable Time from Low t RLZ Figures 4 and 10, C L = 100pF, S1 closed 20 50 ns Receiver Disable Time from High t RHZ Figures 4 and 10, C L = 100pF, S2 closed 20 50 ns Time to Shutdown t SHDN (Note 4) 50 200 600 ns Driver Enable from Shutdown to Output High t DZH(SHDN ) Figures 6 and 8, C L = 15pF, S2 closed 40 100 ns Driver Enable from Shutdown to Output Low t DZL(SHDN) Figures 6 and 8, C L = 15pF, S1 closed 40 100 ns Receiver Enable from Shutdown- to-Output High t RZH(SHDN) Figures 4 and 10, C L = 100pF, S2 closed 300 1000 ns Receiver Enable from Shutdown- to-Output Low t RZL(SHDN) Figures 4 and 10, C L = 100pF, S1 closed 300 1000 ns Note 4: The device is put into shutdown by bringing RE _______ high and DE low. If the enable inputs are in this state for less than 50ns, the device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 600ns, the device is guaranteed to have entered shutdown. |
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