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FT231XS-R Datasheet(PDF) 8 Page - Future Technology Devices International Ltd. |
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FT231XS-R Datasheet(HTML) 8 Page - Future Technology Devices International Ltd. |
8 / 44 page Copyright © 2013 Future Technology Devices International Limited 8 FT231X USB TO FULL HANDSHAKE UART IC Datasheet Version 1.2 Document No.: FT_000565 Clearance No.: FTDI# 261 Pin No. Name Type Description 9 USBDM INPUT USB Data Signal Minus. 8 USBDP INPUT USB Data Signal Plus. 11 RESET# INPUT Reset input (active low). Table 3.2 Common Function pins Pin No. Name Type Description 17 TXD Output Transmit Asynchronous Data Output. 1 RXD Input Receiving Asynchronous Data Input. 19 RTS# Output Request to Send Control Output / Handshake Signal. 6 CTS# Input Clear To Send Control Input / Handshake Signal. 18 DTR# Output Data Terminal Ready Control Output / Handshake Signal. 4 DSR# Input Data Set Ready Control Input / Handshake Signal. 5 DCD# Input Data Carrier Detect Control Input. 2 RI# Input Ring Indicator input for remote wake up. 15 CBUS0 I/O Configurable CBUS I/O Pin. Function of this pin is configured in the device MTP memory. The default configuration is TXDEN. See CBUS Signal Options, Table 3.7. 14 CBUS1 I/O Configurable CBUS I/O Pin. Function of this pin is configured in the device MTP memory. The default configuration is RXLED#. See CBUS Signal Options, Table 3.7. 7 CBUS2 I/O Configurable CBUS I/O Pin. Function of this pin is configured in the device MTP memory. The default configuration is TXLED#. See CBUS Signal Options, Table 3.7. 16 CBUS3 I/O Configurable CBUS I/O Pin. Function of this pin is configured in the device MTP memory. The default configuration is SLEEP#. See CBUS Signal Options, Table 3.7. Table 3.3 UART Interface and CBUS Group (see note 1) Notes: 1 When used in Input Mode, the input pins are pulled to VCCIO via internal 75kΩ (approx) resistors. These pins can be programmed to gently pull low during USB suspend (PWREN# = “1”) by setting an option in the MTP memory. |
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