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SMC032BFY6 数据表(PDF) 23 Page - STMicroelectronics |
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SMC032BFY6 数据表(HTML) 23 Page - STMicroelectronics |
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23 / 91 page ![]() SMCxxxBF Electrical interface 23/91 4.4 Additional requirements for CompactFlash Advanced Timing mode When operating in a CompactFlash Advanced timing mode, the following conditions must be respected: ● Only one CompactFlash Card must be connected to the CompactFlash bus. ● The load capacitance (cable included) for all signals must be lower than 40pF. ● The cable length must be lower than 0.15m (6inches). The cable length is measured from the Card connector to the host controller. 0.46m (18inches) cables are not supported. Table 13. Input Characteristics Type Parameter Symbol Min. Typ. Max. Min. Typ. Max. Units VCC = 3.3V VCC = 5.0V 1 Input Voltage CMOS VIH 2.4 3.3 V VIL 0.6 0.8 2 Input Voltage CMOS VIH 1.5 2.0 V VIL 0.6 0.8 3 Input Voltage CMOS Schmitt Trigger VTH 1.8 2.8 V VTL 1.0 2.0 Table 14. Output Drive Type(1) 1. x refers to the characteristics described in Table 15 For example, OT3 refers to totem pole output with a type 3 output drive characteristic. Type Output Type Valid Conditions OTx Totempole IOH & IOL OZx Tri-State N-P Channel IOH & IOL OPx P-Channel Only IOH Only ONx N-Channel Only IOL Only Table 15. Output Drive Characteristics Type Parameter Symbol Conditions Min. Typ. Max. Units 1 Output Voltage VOH IOH = -4mA VCC − 0.8V V VOL IOL = 4mA Gnd + 0.4V 2 Output Voltage VOH IOH = -4mA VCC − 0.8V V VOL IOL = 4mA Gnd + 0.4V 3 Output Voltage VOH IOH = -4mA VCC − 0.8V V VOL IOL = 4mA Gnd + 0.4V X Tri-State Leakage Current IOZ VOL = Gnd –10 10 µA VOH = VCC |
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