參數(shù)資料
型號(hào): FT232HL-REEL
廠商: FTDI, Future Technology Devices International Ltd
文件頁數(shù): 48/65頁
文件大?。?/td> 0K
描述: IC HS USB TO UART/FIFO 48LQFP
應(yīng)用說明: FT1248 Application Note
標(biāo)準(zhǔn)包裝: 1
通道數(shù): 1,UART
FIFO's: 4kb
規(guī)程: RS232,RS422,RS485
電源電壓: 1.62 V ~ 1.98 V,2.97 V ~ 3.63 V
帶并行端口:
帶故障啟動(dòng)位檢測(cè)功能:
帶調(diào)制解調(diào)器控制功能:
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 標(biāo)準(zhǔn)包裝
其它名稱: 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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