전자부품 데이터시트 검색엔진 |
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SI845X 데이터시트(PDF) 9 Page - Silicon Laboratories |
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SI845X 데이터시트(HTML) 9 Page - Silicon Laboratories |
9 / 36 page Si8450/51/52/55 Rev. 1.5 9 Table 4. Electrical Characteristics (VDD1 = 3.3 V±10%, VDD2 = 3.3 V±10%, TA = –40 to 125 °C) Parameter Symbol Test Condition Min Typ Max Unit High Level Input Voltage VIH 2.0 — — V Low Level Input Voltage VIL —— 0.8 V High Level Output Voltage VOH loh = –4 mA VDD1,VDD2 –0.4 3.1 — V Low Level Output Voltage VOL lol = 4 mA — 0.2 0.4 V Input Leakage Current IL —— ±10 µA Output Impedance1 ZO —85 — Enable Input High Current IENH VENx = VIH —2.0 — µA Enable Input Low Current IENL VENx = VIL —2.0 — µA DC Supply Current (All inputs 0 V or at supply) Si8450Ax, Bx, Si8455Bx VDD1 VDD2 VDD1 VDD2 All inputs 0 dc All inputs 0 dc All inputs 1 dc All inputs 1 dc — — — — 1.6 2.9 7.0 3.1 2.4 4.4 10.5 4.7 mA Si8451Ax, Bx VDD1 VDD2 VDD1 VDD2 All inputs 0 dc All inputs 0 dc All inputs 1 dc All inputs 1 dc — — — — 2.0 3.0 6.0 4.1 3.0 4.5 9.0 6.2 mA Si8452Ax, Bx VDD1 VDD2 VDD1 VDD2 All inputs 0 DC All inputs 0 DC All inputs 1 DC All inputs 1 DC — — — — 2.3 2.7 5.4 4.7 3.5 4.1 8.1 7.1 mA 1 Mbps Supply Current (All inputs = 500 kHz square wave, CI = 15 pF on all outputs) Si8450Ax, Bx, Si8455Bx VDD1 VDD2 — — 4.3 3.5 6.5 5.3 mA Si8451Ax, Bx VDD1 VDD2 — — 4.1 4.0 6.2 6.0 mA Si8452Ax, Bx VDD1 VDD2 — — 4.1 4.0 6.2 6.0 mA Notes: 1. The nominal output impedance of an isolator driver channel is approximately 85 , ±40%, which is a combination of the value of the on-chip series termination resistor and channel resistance of the output driver FET. When driving loads where transmission line effects will be a factor, output pins should be appropriately terminated with controlled impedance PCB traces. 2. tPSK(P-P) is the magnitude of the difference in propagation delay times measured between different units operating at the same supply voltages, load, and ambient temperature. 3. See "3. Errata and Design Migration Guidelines" on page 26 for more details. 4. Start-up time is the time period from the application of power to valid data at the output. |
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