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FT232H Datasheet(PDF) 10 Page - Future Technology Devices International Ltd. |
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FT232H Datasheet(HTML) 10 Page - Future Technology Devices International Ltd. |
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10 / 65 page ![]() Copyright © 2014 Future Technology Devices International Limited 10 Document No.: FT_000288 FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC Datasheet Version 1.81 Clearance No.: FTDI #199 Pin No. Name Type Description 1 OSCI INPUT Oscillator input. 2 OSCO OUTPUT Oscillator output. 5 REF INPUT Current reference – connect via a 12KΩ resistor @ 1% to GND. 6 DM I/O USB Data Signal Minus. 7 DP I/O USB Data Signal Plus. 42 TEST INPUT IC test pin – for normal operation must be connected to GND. 34 RESET# INPUT Reset input (active low). 31 PWRSAV# INPUT USB Power Save input. This is an EEPROM configurable option which is set using a ’Suspend on DBus7 Low’ bit on FT_PROG . This option is available when the FT232H is on a self powered mode and is used to prevent forcing current down the USB lines when the host or hub is powered off. PWRSAV# = 1 : Normal Operation PWRSAV# = 0 : FT232H forced into SUSPEND mode. PWRSAV# can be connected to VBUS of the USB connector (via a 39KΩ resistor). When this input goes high, then it indicates to the FT232H that it is connected to a host PC. When the host or hub is powered down then the FT232H is held in SUSPEND mode. Table 3.2 Common Function pins |
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