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SI844X Folha de dados(PDF) 10 Page - Silicon Laboratories |
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SI844X Folha de dados(HTML) 10 Page - Silicon Laboratories |
10 / 32 page Si844x/5x QSOP 10 Rev. 1.2 Table 5. Electrical Characteristics1 (VDD1 = 2.70 V, VDD2 = 2.70 V, 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 2.3 — V Low Level Output Voltage VOL lol = 4 mA — 0.2 0.4 V Input Leakage Current IL —— ±10 µA Output Impedance2 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) 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 Si8442Bx VDD1 VDD2 VDD1 VDD2 All inputs 0 DC All inputs 0 DC All inputs 1 DC All inputs 1 DC — — — — 2.3 2.3 4.5 4.5 3.5 3.5 6.8 6.8 mA 1 Mbps Supply Current (All inputs = 500 kHz square wave, CI = 15 pF on all outputs) Si8455Bx VDD1 VDD2 — — 4.3 3.5 6.5 5.3 mA Si8442Bx VDD1 VDD2 — — 3.6 3.6 5.4 5.4 mA 10 Mbps Supply Current (All inputs = 5 MHz square wave, CI = 15 pF on all outputs) Si8455Bx VDD1 VDD2 — — 4.3 4.8 6.5 6.7 mA Si8442Bx VDD1 VDD2 — — 4.2 4.2 5.9 5.9 mA Notes: 1. Specifications in this table are also valid at VDD1 = 2.6 V and VDD2 = 2.6 V when the operating temperature range is constrained to TA = 0 to 85 °C. 2. 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. 3. 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. 4. Start-up time is the time period from the application of power to valid data at the output. |
Nº de peça semelhante - SI844X |
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Descrição semelhante - SI844X |
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