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ISO7421M Datasheet(PDF) 4 Page - Texas Instruments |
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ISO7421M Datasheet(HTML) 4 Page - Texas Instruments |
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4 / 20 page  ISO7420, ISO7420M ISO7421, ISO7421M SLLS984D – JUNE 2009 – REVISED JULY 2010 www.ti.com ELECTRICAL CHARACTERISTICS VCC1 and VCC2 at 5V ± 5%; TA = –40°C to 125°C for ISO742xM, TA = –40°C to 105°C for ISO742x PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IOH = –4 mA; see Figure 1. VCC – 0.8 4.6 VOH High-level output voltage V IOH = –20 mA; see Figure 1. VCC – 0.1 5 IOL = 4 mA; see Figure 1. 0.2 0.4 VOL Low-level output voltage V IOL = 20 mA; see Figure 1. 0 0.1 VI(HYS) Input threshold voltage hysteresis 400 mV IIH High-level input current 10 mA INx at 0 V or VCC IIL Low-level input current –10 mA CMTI Common-mode transient immunity VI = VCC or 0 V; see Figure 3. 25 50 kV/ms SUPPLY CURRENT (All inputs switching with square wave clock signal for dynamic ICC measurement) ISO7420 ICC1 Supply current for VCC1 0.4 1 DC to 1 Mbps VI = VCC or 0 V, 15 pF load mA ICC2 Supply current for VCC2 3 6 ISO7421 ICC1 Supply current for VCC1 2 4 DC to 1 Mbps VI = VCC or 0 V, 15 pF load mA ICC2 Supply current for VCC2 2 4 SWITCHING CHARACTERISTICS VCC1 and VCC2 at 5V ± 5%; TA = –40°C to 125°C for ISO742xM, TA = –40°C to 105°C for ISO742X PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH, tPHL Propagation delay time See Figure 1. 9 14 ns PWD(1) Pulse width distortion |tPHL – tPLH| 0.3 3.5 ns tsk(pp) Part-to-part skew time 4 ns tsk(o) Channel-to-channel output skew time 3.6 ns tr Output signal rise time See Figure 1. 1 ns tf Output signal fall time 1 ns tfs Fail-safe output delay time from input power loss See Figure 2. 6 ms (1) Also known as pulse skew. 4 Submit Documentation Feedback Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): ISO7420 ISO7420M ISO7421 ISO7421M |
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