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FT232R 데이터시트(PDF) 20 Page - Future Technology Devices International Ltd. |
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FT232R 데이터시트(HTML) 20 Page - Future Technology Devices International Ltd. |
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20 / 43 page ![]() Copyright © 2010 Future Technology Devices International Limited 20 Document No.: FT_000053 FT232R USB UART IC Datasheet Version 2.07 Clearance No.: FTDI# 38 Parameter Description Minimum Typical Maximum Units Conditions Voh Output Voltage High 2.1 2.6 2.8 V I source = 3mA Vol Output Voltage Low 0.3 0.4 0.6 V I sink = 8mA Vin Input Switching Threshold 1.0 1.2 1.5 V ** VHys Input Switching Hysteresis 20 25 30 mV ** Table 5.9 UART and CBUS I/O Pin Characteristics (VCCIO = +2.8V, High Drive Level) Parameter Description Minimum Typical Maximum Units Conditions Voh Output Voltage High 1.35 1.67 1.8 V I source = 0.4mA Vol Output Voltage Low 0.12 0.18 0.35 V I sink = 3mA Vin Input Switching Threshold 1.0 1.2 1.5 V ** VHys Input Switching Hysteresis 20 25 30 mV ** Table 5.10 UART and CBUS I/O Pin Characteristics (VCCIO = +1.8V, High Drive Level) ** Only input pins have an internal 200KΩ pull-up resistor to VCCIO Parameter Description Minimum Typical Maximum Units Conditions Vin Input Switching Threshold 1.3 1.6 1.9 V VHys Input Switching Hysteresis 50 55 60 mV Table 5.11 RESET# and TEST Pin Characteristics |
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