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ISO7421 データシート(PDF) 6 Page - Texas Instruments |
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ISO7421 データシート(HTML) 6 Page - Texas Instruments |
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6 / 19 page  ISO7420, ISO7420M ISO7421, ISO7421M SLLS984A – JUNE 2009 – REVISED DECEMBER 2009 www.ti.com ELECTRICAL CHARACTERISTICS VCC1 at 3.3 V ±10%, VCC2 at 5 V ±10%; TA = –55°C to 125°C for ISO7421M, TA = –40°C to 105°C for ISO7421 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT IOH = –4 mA; ISO7421 (3.3-V side) VCC – 0.4 see Figure 1. VOH High-level output voltage V IOH = –20 μA; see Figure 1. VCC – 0.1 IOL = 4 mA; see Figure 1. 0.4 VOL Low-level output voltage V IOL = 20 μA; see Figure 1. 0 0.1 VI(HYS) Input threshold voltage hysteresis 400 mV IIH High-level input current 10 μA IN from 0 V or VCC IIL Low-level input current –10 μA CI Input capacitance to ground IN at VCC, VI = 0.4 sin (4E6πt) 1 pF CMTI Common-mode transient immunity VI = VCC or 0 V; see Figure 3. 25 40 kV/ μs SUPPLY CURRENT ISO7420 Quiescent 0.2 0.5 25 Mbps 0.8 1.3 ICC1 Supply current for VCC1 VI = VCC or 0 V, no load mA 100 Mbps 2.1 3.5 200 Mbps 4 7 Quiescent 2.7 4.5 25 Mbps 3.8 6 ICC2 Supply current for VCC2 VI = VCC or 0 V, no load mA 100 Mbps 7 11 200 Mbps 15 20 ISO7421 Quiescent 1.5 2.5 25 Mbps 2.2 3.5 ICC1 Supply current for VCC1 VI = VCC or 0 V, no load mA 100 Mbps 4.2 6 200 Mbps 7.2 9 Quiescent 2 3 25 Mbps 3.5 5 ICC2 Supply current for VCC2 VI = VCC or 0 V, no load mA 100 Mbps 7.5 11 200 Mbps 12 17 SWITCHING CHARACTERISTICS VCC1 at 3.3 V ±10%, VCC2 at 5 V ±10%, TA = –55°C to 125°C for ISO7421M, TA = –40°C to 105°C for ISO7421 PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tPLH, tPHL Propagation delay time See Figure 1. 10 15 ns PWD(1) Pulse duration distortion |tPHL – tPLH| 0.5 2 ns tsk(pp) Part-to-part skew time 3 ns tsk(o) Channel-to-channel output skew time 2 ns tr Output signal rise time See Figure 1. 2 ns tf Output signal fall time 2 ns tfs Fail-safe output delay time from input power loss See Figure 2. 6 μs tui Input pulse duration 10 5 ns 1 / tui Signaling rate 0 200 100 Mbps (1) Also known as pulse skew. 6 Submit Documentation Feedback Copyright © 2009, Texas Instruments Incorporated Product Folder Link(s): ISO7420, ISO7420M ISO7421, ISO7421M |
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