参数资料
型号: FT232HL-REEL
厂商: FTDI, Future Technology Devices International Ltd
文件页数: 47/65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
51
Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.8
Clearance No.: FTDI #199
6
FT232H Configurations
The following section illustrates possible USB power configurations for the FT232H.
All USB power configurations illustrated apply to both package options for the FT232H device
6.1 USB Bus Powered Configuration
Bus Powered Application example 1: Bus powered configuration running on +5V
Figure 6.1 Bus Powered Configuration Example 1
Figure 6.1 illustrates the FT232H in a typical USB bus powered design configuration. A USB bus powered
device gets its power from the VBUS (+5V) 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 pin
39, VCCD. Please note that when the FT232H running on +5V (VREGIN), the VCCD becomes an output.
Note:
1. In this application, pin 40 (VREGIN) is the +5V input to the on chip +3.3V/1.8V regulator.
Since the VREGIN is +5.0V, pin 39 (VCCD) becomes 3V3 output and supplies 3.3V to the
VCCIOs, VPLL and VPHY.
2. The output of the on chip LDO +3.3V/1.8V regulator (+1.8V) drives pin 38, the FT232H core
supply (VCORE) and pin 37, the VCCA.
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