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FT232HQ-REEL Datasheet(PDF) 9 Page - List of Unclassifed Manufacturers |
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FT232HQ-REEL Datasheet(HTML) 9 Page - List of Unclassifed Manufacturers |
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9 / 66 page  Copyright © 2012 Future Technology Devices International Limited 9 Document No.: FT_000288 FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC Datasheet Version 1.8 Clearance No.: FTDI #199 3.3 Signal Description The operation of the following FT232H pins are the same regardless of the configured mode:- Pin No. Name Type Description 40 ** VREGIN POWER input +5.0V or 3V3 power supply input. 37 VCCA POWER output +1.8V output. Should not be used. 38 VCORE POWER output +1.8V output. Should not be used. 39 ** VCCD POWER output or input +3.3V output or input. 12, 24, 46 VCCIO POWER input +3.3V input. I/O interface power supply input 8 VPLL POWER Input +3.3V input. Internal PLL power supply input. It is recommended that this supply is filtered using an LC filter. (See figure 6.1) 3 VPHY POWER Input +3.3V input. Internal USB PHY power supply input. Note that this cannot be connected directly to the USB supply. A +3.3V regulator must be used. It is recommended that this supply is filtered using an LC filter.(See figure 6.1) 4,9,41 AGND POWER Input 0V Ground input. 10,11,22,23,35,36,47,48 GND POWER Input 0V Ground input. Table 3.1 Power and Ground ** If pin 40 (VREGIN) is +5.0V, pin 39 becomes an output and If pin 40 (VREGIN) is 3V3 pin 39 becomes an input. |
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