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ISO1541DR Datasheet(PDF) 11 Page - Texas Instruments |
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ISO1541DR Datasheet(HTML) 11 Page - Texas Instruments |
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11 / 34 page  11 ISO1540, ISO1541 www.ti.com SLLSEB6D – JULY 2012 – REVISED DECEMBER 2016 Product Folder Links: ISO1540 ISO1541 Submit Documentation Feedback Copyright © 2012–2016, Texas Instruments Incorporated (1) This parameter does not apply to the ISO1541 SCL1 line as it is unidirectional. 6.12 Switching Characteristics over recommended operating conditions, unless otherwise noted PARAMETER TEST CONDITIONS MIN TYP MAX UNIT 3 V ≤ VCC1, VCC2 ≤ 3.6 V tf1 Output Signal Fall Time (SDA1, SCL1) See Figure 19 R1 = 953 Ω, C1 = 40 pF 0.7 × VCC1 to 0.3 × VCC1 8 17 29 ns 0.9 × VCC1 to 900 mV 16 29 48 tf2 Output Signal Fall Time (SDA2, SCL2) See Figure 19 R2 = 95.3 Ω, C2 = 400 pF 0.7 × VCC2 to 0.3 × VCC2 14 23 47 ns 0.9 × VCC2 to 400 mV 35 50 100 tpLH1-2 Low-to-High Propagation Delay, Side 1 to Side 2 See Figure 19 R1 = 953 Ω, R2 = 95.3 Ω, C1, C2 = 10 pF 0.55 V to 0.7 × VCC2 33 65 ns tPHL1-2 High-to-Low Propagation Delay, Side 1 to Side 2 0.7 V to 0.4 V 90 181 ns PWD1-2 Pulse Width Distortion |tpHL1-2 – tpLH1-2| 55 123 ns tPLH2-1 (1) Low-to-High Propagation Delay, Side 2 to Side 1 0.4 × VCC2 to 0.7 × VCC1 47 68 ns tPHL2-1 (1) High-to-Low Propagation Delay, Side 2 to Side 1 0.4 × VCC2 to 0.9 V 67 109 ns PWD2-1 (1) Pulse Width Distortion |tpHL2-1 – tpLH2-1| 20 49 ns tLOOP1 (1) Round-trip propagation delay on Side 1 See Figure 20; R1 = 953 Ω, C1 = 40 pF R2 = 95.3 Ω, C2 = 400 pF 0.4 V to 0.3 × VCC1 100 165 ns 4.5 V ≤ VCC1, VCC2 ≤ 5.5 V tf1 Output Signal Fall Time (SDA1, SCL1) See Figure 19 R1 = 1430 Ω, C1 = 40 pF 0.7 × VCC1 to 0.3 × VCC1 6 11 20 ns 0.9 × VCC1 to 900 mV 13 21 39 tf2 Output Signal Fall Time (SDA2, SCL2) See Figure 19 R2 = 143 Ω, C2 = 400 pF 0.7 × VCC2 to 0.3 × VCC2 10 18 35 ns 0.9 × VCC2 to 400 mV 28 41 76 tpLH1-2 Low-to-High Propagation Delay, Side 1 to Side 2 See Figure 19 R1 = 1430 Ω, R2 = 143 Ω, C1,2 = 10 pF 0.55 V to 0.7 × VCC2 31 62 ns tPHL1-2 High-to-Low Propagation Delay, Side 1 to Side 2 0.7 V to 0.4 V 70 139 ns PWD1-2 Pulse Width Distortion |tpHL1-2 – tpLH1-2| 38 80 ns tPLH2-1 (1) Low-to-high propagation delay, side 2 to side 1 0.4 × VCC2 to 0.7 × VCC1 55 80 ns tPHL2-1 (1) High-to-low propagation delay, Side 2 to side 1 0.4 × VCC2 to 0.9 V 47 85 ns PWD2-1 (1) Pulse Width Distortion |tpHL2-1 – tpLH2-1| 8 21 ns tLOOP1 (1) Round-trip propagation delay on side 1 See Figure 20; R1 = 1430 Ω, C1 = 40 pF R2 = 143 Ω, C2 = 400 pF 0.4 V to 0.3 × VCC1 110 180 ns |
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