FT311D-32Q1C-T FTDI, FT311D-32Q1C-T Datasheet - Page 24

• Manufacturer Part Number: FT311D-32Q1C-T
• Description: USB Interface IC USB Android Host Controller IC QFN-32
• Manufacturer: FTDI

Specifications of FT311D-32Q1C-T

• Rohs: yes
• Product: USB 2.0
• Interface Type: I2C, UART, USB
• Operating Supply Voltage: 0 V to 3.63 V
• Operating Supply Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFN-32

8.2 USB to UART Converter
Figure 8.2 Application Example showing USB to UART Converter
This example shows the CNFGx pins set for mode 001 - UART.
The UART signals are at 3V3 level and may be used to drive directly into a FPGA or MCU with a 3V3
interface, or could be level shifted with an RS232, RS422 or RS485 transceiver. The UART_TX_ACTIVE
signal is used mostly with RS485 transceivers to enable the transmit drivers.
The unused pins may be left unterminated.
Power to the USB port is enabled by the VBUSCTRL# signal
5V
SHIELD
5
100nF
1
2
3
4
3V3
REGULATOR
Copyright © 2012 Future Technology Devices International Limited
3V3
+
GND
100nF
GND
4.7uF
Ferrite
3V3
Bead
47pF
5V_SW
GND
47pF
GND
27R
27R
3V3
10k
GND
DS
_FT311D
100nF
RESET#
USBDM
CNFG2
CNFG1
CNFG0
VREGOUT
VCCIO
USBDP
1V8 PLL VCC IN
VCC
FT311D
USB ANDROID HOST IC Datasheet
VBUSCTRL#
Document No.: FT_000660 Clearance No.: FTDI# 305
IOBUS7
IOBUS0
IOBUS1
IOBUS2
IOBUS3
IOBUS4
IOBUS5
IOBUS6
P Channel Power
UART_TX_ACTIVE
UART_TXD
UART_RXD
UART_RTS#
UART_CTS#
MOSFET
0.1uF
MCU/FPGA
Version 1.0
0.1uF
5V_SW
Switched 5V Power to
USB
24