参数资料
型号: FT232HL-REEL
厂商: FTDI, Future Technology Devices International Ltd
文件页数: 48/65页
文件大小: 0K
描述: IC HS USB TO UART/FIFO 48LQFP
应用说明: FT1248 Application Note
标准包装: 1
通道数: 1,UART
FIFO's: 4kb
规程: RS232,RS422,RS485
电源电压: 1.62 V ~ 1.98 V,2.97 V ~ 3.63 V
带并行端口:
带故障启动位检测功能:
带调制解调器控制功能:
安装类型: 表面贴装
封装/外壳: 48-LQFP
供应商设备封装: 48-LQFP(7x7)
包装: 标准包装
其它名称: 768-1101-6
Copyright 2012 Future Technology Devices International Limited
52
Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.8
Clearance No.: FTDI #199
6.2 USB Self Powered Configuration
Self Powered application example 1: Self powered configuration running on 5V.
Figure 6.2 Self Powered Configuration Example 1
Figure 6.2 illustrates the FT232H in a typical USB self powered configuration. A USB self powered device
gets its power from its own external power supply which is connected to VREGIN. In this application the
VREGIN is the +5V input to the on chip +3.3V/1.8V regulator. The output of the on chip LDO regulator
(+1.8V) drives pin 38, VCORE and pin 37, VCCA. The output of the on chip LDO regulator (3.3V) supplies
3.3V to the VCCIOs, VPLL and VPHY through VCCD.
Please note that when the FT232H running on +5V (VREGIN), the VCCD becomes an output.
Note that in this set-up, the EEPROM should be configured for self-powered operation and the option
“suspend on ACBUS7 low” is enabled in FT_Prog. This configuration uses the ACBUS7 pin, when this
function is enabled ACBUS7 should not be used as a GPIO in MPSSE mode.
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