參數(shù)資料
型號(hào)： FT2232C
廠商： Electronic Theatre Controls, Inc.
英文描述： FT2232C Dual USB UART / FIFO I.C.
中文描述： FT2232C雙USB的UART / FIFO的集成電路
文件頁數(shù)： 30/51頁
文件大小： 907K
代理商： FT2232C
DS2232C Version 1.4
Future Technology Devices International Ltd. 2005 Page 30 of 54
FT2232C Dual USB UART / FIFO I.C.
Figure 15 illustrates how to connect the UART interfaces of the FT2232C to two TTL – RS422 Level Converter I.C.’s
to make a USB to dual port RS422 converter. There are many such level converter devices available – this example
uses two Sipex SP491 devices which have enables on both their transmitters and receivers. Because the transmitter
enables are active high, they are connected to the SLEEP# pins. The receiver enables are active low and are both
connected to the PWREN# pin. This ensures that both the transmitters and receivers are enabled when the device
is active, and disabled when the device is in USB suspend mode. If the design is USB BUS powered, it may be
necessary to use a P-Channel logic level MOSFET (controlled by PWREN#) in the VCC line of the SP491 devices to
ensure that the USB standby current of 500μA is met.
The SP491 is good for sending and receiving data at a rate of up to 5M Baud – in this case the maximum rate is
limited to 3M Baud by the FT2232C.
Figure 15 - USB <=> RS422 Converter Configuration
FT2232C
TXDM_A
RXDP_A
RTSP_A
CTSP_A
GND
VCC
SP491
5
4
12
9
3
11
2
10
14
7
6
D
R
5
4
12
9
3
11
2
10
14
7
6
D
R
SP491
VCC
120R
120R
TXDP_A
RXDM_A
RTSM_A
CTSM_A
SLEEP# (ACBUS1)
TXD (ADBUS0)
RXD (ADBUS1)
RTS# (ADBUS2)
CTS# (ADBUS3)
DTR# (ADBUS4)
DSR# (ADBUS5)
DCD# (ADBUS6)
RI# (ADBUS7)
13
TXDEN (ACBUS0)
24
23
22
21
20
19
17
16
15
PWREN#
41
SLEEP# (BCBUS1)
TXD (BDBUS0)
RXD (BDBUS1)
RTS# (BDBUS2)
CTS# (BDBUS3)
DTR# (BDBUS4)
DSR# (BDBUS5)
DCD# (BDBUS6)
RI# (BDBUS7)
29
TXDEN (BCBUS0)
40
39
38
37
36
35
33
32
30
TXDM_B
RXDP_B
RTSP_B
CTSP_B
GND
VCC
SP491
5
4
12
9
3
11
2
10
14
7
6
D
R
5
4
12
9
3
11
2
10
14
7
6
D
R
SP491
VCC
120R
120R
TXDP_B
RXDM_B
RTSM_B
CTSM_B
DB9-M
RS422 Channel B
DB9-M
RS422 Channel A
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FT2232C_04 制造商:FTDI 制造商全稱:FTDI 功能描述:Dual USB UART / FIFO I.C.
FT2232D 制造商:Future Technology Devices International 功能描述:UART 2-CH 3.3V/5V 48-Pin LQFP 制造商:Future Technology Devices International 功能描述:UART 2-CH 3.3V/5V 48-Pin LQFP Bulk 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB Full Speed to Dual Channel Serial UART/FIFO/JTAG/SPI/I2C IC - LQFP-48
FT2232D/TR 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB-UART/FIFO SMD 2232 LQFP48 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB-UART/FIFO, SMD, 2232, LQFP48 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB-UART/FIFO, SMD, 2232, LQFP48; USB Type:FIFO; USB Version:2.0; Supply Voltage Min:3V; Supply Voltage Max:5.25V; Digital IC Case Style:LQFP; No. of Pins:48; Data Rate:12Mbps; No. of Ports:2; Operating Temperature Min:-40C ;RoHS Compliant: Yes
FT2232D-REEL 功能描述:USB 接口集成電路 USB to Dual UART/ FIFO/SPI/JTAG/I2C 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
FT2232D-TRAY 制造商:Future Technology Devices International (FTDI Chip) 功能描述:DUAL USB TO SERIAL UART/FIFO IC
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