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FT232HQ-REEL Datasheet(PDF) 50 Page - Future Technology Devices International Ltd. |
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FT232HQ-REEL Datasheet(HTML) 50 Page - Future Technology Devices International Ltd. |
50 / 66 page Copyright © Future Technology Devices International Limited 50 Document No.: FT_000288 FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC Datasheet Version 1.82 Clearance No.: FTDI #199 The I/O pins are +3.3v cells, which are +5V tolerant (except the USB PHY pins). Parameter Description Minimum Typical Maximum Units Conditions Voh Output Voltage High 2.4 VCCIO VCCIO V Ioh = +/-2mA I/O Drive strength* = 4mA 2.4 VCCIO VCCIO V I/O Drive strength* = 8mA 2.4 VCCIO VCCIO V I/O Drive strength* = 12mA 2.4 VCCIO VCCIO V I/O Drive strength* = 16mA Vol Output Voltage Low 0 0.4 V Iol = +/-2mA I/O Drive strength* = 4mA 0 0.4 V I/O Drive strength* = 8mA 0 0.4 V I/O Drive strength* = 12mA 0 0.4 V I/O Drive strength* = 16mA Vil Input low Switching Threshold 0.8 V LVTTL Vih Input High Switching Threshold 2.0 V LVTTL Vt Switching Threshold 1.5 V LVTTL Vt- Schmitt trigger negative going threshold voltage 0.8 1.1 V Vt+ Schmitt trigger positive going threshold voltage 1.6 2.0 V Rpu Input pull-up resistance 40 75 190 KΩ Vin = 0 Rpd Input pull-down resistance 40 75 190 KΩ Vin =VCCIO Iin Input Leakage Current -10 +/-1 10 μA Vin = 0 Ioz Tri-state output leakage current -10 +/-1 10 μA Vin = 5.5V or 0 Table 5.3 I/O Pin Characteristics VCCIO = +3.3V (except USB PHY pins) * The I/O drive strength and slow slew-rate are configurable in the EEPROM. |
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