FT311D-32L1C-R FTDI, FT311D-32L1C-R Datasheet - Page 13

• Manufacturer Part Number: FT311D-32L1C-R
• Description: USB Interface IC USB Android Host Controller IC LQFP32
• Manufacturer: FTDI

Specifications of FT311D-32L1C-R

• Rohs: yes
• Product: USB 2.0
• Data Rate: 12 Mbps
• Interface Type: I2C, UART, USB
• Operating Supply Voltage: 3.63 V
• Operating Supply Current: 25 mA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: LQFP-32
• Minimum Operating Temperature: - 40 C

5.2.1 UART Mode Signal Descriptions
The UART signals are fixed on the I/O pins. Table 5.1 UART Interface, details the pins for each of the
UART signals.
Table 5.1 UART Interface
5.3 Pulse Width Modulation
FT311D provides 4 Pulse Width Modulation (PWM) outputs. These can be used to generate PWM signals
which can be used to control motors, DC/DC converters, AC/DC supplies, etc. Further information is
available in an Application Note AN_140 -
The features of the PWM module are as follows:
5.4 I2C
I
open-drain wires called serial data (SDA) and serial clock (SCL). Common I²C bus speeds are the 100
kbit/s standard mode (SM), 400 kbit/s fast mode (FM), 1 Mbit/s Fast mode plus (FM+), and 3.4 Mbit/s
High Speed mode (HS)
An I
FT311D provides an I2C master interface for connection to other I2C Slave interfaces up to 125kbit/s.
The master is initially in master transmit mode by sending a start bit followed by the 7-bit address of the
slave it wishes to communicate with, which is finally followed by a single bit representing whether to
write(0) to, or read(1) from the slave.
2
C (Inter Integrated Circuit) is a multi-master serial bus invented by Philips. I
Pin No
23
24
25
26
29
-
-
-


2
C bus node can operate either as a master or a slave:
4 PWM outputs
Variable frequency
Variable duty cycle
Master node
Slave node
uart_tx_active
uart_cts#
uart_rts#
uart_txd
uart_rxd
Name
Copyright © 2012 Future Technology Devices International Limited
– issues the clock and addresses slaves
– receives the clock line and address.
Output
Output
output
Input
Input
Type
Transmit asynchronous data output
Transmit enable (typically used for
Vinculum-II PWM
Receive asynchronous data input
DS
Request to send control output
Clear to send control input
_FT311D
RS485 designs)
Description
USB ANDROID HOST IC Datasheet
Document No.: FT_000660 Clearance No.: FTDI# 305
Example.
2
C uses two bi-directional
Version 1.0
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