参数资料
型号: FT232HL-REEL
厂商: FTDI, Future Technology Devices International Ltd
文件页数: 51/65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
55
Document No.: FT_000288
FT232H SINGLE CHANNEL HI-SPEED USB TO MULTIPURPOSE UART/FIFO IC
Datasheet Version 1.8
Clearance No.: FTDI #199
7
EEPROM Configuration
7.1 EEPROM Interface
The FT232H uses configuration data from an external EEPROM. The EEPROM must be 16 bits wide
(93LC56B) and powered from the same net as the core supply of +2.97 to +3.63 volts. Adding an
external (93LC56B) EEPROM allows the chip to be configured as a serial UART (RS232 mode), parallel
FIFO (245) mode, FT1248, fast serial (opto isolation) or CPU-Style FIFO.
Figure 7.1 EEPROM Interface
The external EEPROM can also be used to customise the USB VID, PID, Serial Number, Product
Description Strings and Power Descriptor value of the FT232H for OEM applications. Other parameters
controlled by the EEPROM include Remote Wake Up, Soft Pull Down on Power-Off and I/O pin drive
strength.
If the FT232H is used without an external EEPROM the chip defaults to a USB to asynchronous serial
UART (RS232 mode) port device. If no EEPROM is connected (or the EEPROM is blank), the FT232H uses
its built-in default VID (0403), PID (6014) Product Description and Power Descriptor Value. In this case,
the device will not have a serial number as part of the USB descriptor.
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