參數(shù)資料
型號(hào)： FT232RL
廠商： Electronic Theatre Controls, Inc.
英文描述： Incorporating Clock Generator Output and FTDIChip-ID Security Dongle
中文描述： 納入時(shí)鐘發(fā)生器輸出和FTDIChip標(biāo)識(shí)安全適配器
文件頁數(shù)： 23/29頁
文件大?。?/td> 471K
代理商： FT232RL
FT232R USB UART I.C. Datasheet Version 1.04
Future Technology Devices International Ltd. 2005
Page 23
8. Example Interface Configurations
As in the Device Configurations section, please note that pin numbers on the FT232R chip in this section have
deliberately been left out as they vary between the FT232RL and FT232RQ versions of the device. All of these
configurations apply to both package options for the FT232R device. Please refer to
Section 4
for the package option
pin-out and signal descriptions.
8.1 USB to RS232 Converter Configuration
Figure 15 - Example USB to RS232 Converter Configuration
Figure 15 illustrates how to connect an FT232R as a USB to RS232 converter. A TTL – RS232 Level Converter I.C. is
used on the serial UART of the FT232R to make the RS232 level conversion. This, for example can be done using the
popular “213” series of TTL to RS232 level converters. These devices have 4 transmitters and 5 receivers in a 28-LD
SSOP package and feature an in-built voltage converter to convert the 5V (nominal) VCC to the +/- 9 volts required by
RS232. An important feature of these devices is the SHDN# pin which can power down the device to a low quiescent
current during USB suspend mode.
An example of a device which can be used for this is a Sipex SP213EHCA which is capable of RS232 communication
at up to 500k baud. If a lower baud rate is acceptable, then several pin compatible alternatives are available
such as the Sipex SP213ECA , the Maxim MAX213CAI and the Analog Devices ADM213E, which are all good for
communication at up to 115,200 baud. If a higher baud rate is desired, use a Maxim MAX3245CAI part which is
capable of RS232 communication at rates of up to 1M baud. The MAX3245 is not pin compatible with the 213 series
devices, also its SHDN pin is active high, so connect it to PWREN# instead of SLEEP#.
In the above example CBUS0 and CBUS1 have been configured as TXLED# and RXLED#, and are being used to
drive two LEDs.
FT232R
A
G
N
D
G
N
D
G
N
D
G
N
D
T
E
S
T
100nF
3V3OUT
VCCIO
NC
RESET#
NC
+
100nF
10nF
Vcc
TXD
RXD
RTS#
CTS#
DTR#
DSR#
DCD#
RI#
CBUS0
CBUS3
CBUS2
CBUS1
GPIO2
GPIO3
USBDP
USBDM
VCC
1
2
3
4
5
OSCI
OSCO
CBUS4
SLEEP#
Ferrite
Bead
+
4.7uF
Vcc
Vcc
270R
270R
SHIELD
5
9
4
8
3
7
2
6
1
TXDCTS
RXDDSR
DTR
DCD
RI
SHIELD
GND
10
DB9M
R
C
TXDATA
RXDATA
RTS
CTS
DTR
DSR
DCD
RI
TXD
RXD
RTS#
CTS#
DTR#
DSR#
DCD#
RI#
TXLED#
RXLED#
SHDN#
Vcc
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FT232RL R 制造商:Future Technology Devices International Ltd 功能描述:UART, 28 Pin, Plastic, SSOP
FT232RL-2000 制造商:FTDI 制造商全稱:FTDI 功能描述:USB UART IC - Single chip USB to asynchronous serial data transfer interface
FT232RL-BO 功能描述:界面開發(fā)工具 FT232RL USB to UART Breakout Board RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V
FT232RL-R 制造商:Future Technology Devices International Ltd 功能描述:UART, 28 Pin, Plastic, SSOP
FT232RL-REEL 功能描述:USB 接口集成電路 USB to Serial UART Enhanced IC SSOP-28 RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
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