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参数资料
| 型号： | UM232H |
| 厂商： | FTDI, Future Technology Devices International Ltd |
| 文件页数： | 17/29页 |
| 文件大小： | 0K |
| 描述： | MOD USB HS FT232H EVAL |
| 标准包装： | 5 |
| 主要目的： | 接口，USB 2.0 至串行 FIFO 电桥 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | FT232H |
| 主要属性： | 高速（480Mbps）收发器 |
| 次要属性： | LED 状态指示器 |
| 已供物品： | 板 |
| 其它名称： | 768-1103 |
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Document Reference No.: FT_000367
UM232H Single Channel USB Hi-Speed FT232H Development Module Error!
Unknown document property name.
Datasheet Version 1.3
Clearance No.: FTDI# 198
7
Module Configurations
The UM232H Module can be configured as USB Bus-Powered or USB Self-Powered. This section describes
how to configure the UM232H for a number of different power supply arrangements.
7.1 BUS Powered Configuration
Bus powered configuration, where the +5V supply that powers the module is sourced from the USB bus,
and the 3V3 regulator output powers the core of the FT232H.
Figure 7.1 : Bus Powered Configuration
Figure 7.1 illustrates the UM232H in a typical USB bus powered design configuration, which consists of two
connections, a J1-2 to J1-3 connection and a J2-2 to J2-3 connection.
Connecting J1-2 (5V0) to J1-3 (USB) takes the power from the VBUS pin (J1-3) and supplies it to the on
chip voltage regulator input of the FT232H via pin 5V0 (J1-2).
Connecting J2-2 (VIO) (power input for core of the FT232H) and J2-3 (3V3) (power output from the
FT232H) powers the VCCIO, VPLL and VPHY pins of the FT232H chip.
A USB Bus Powered device gets its power from the USB bus. Basic rules for USB Bus power devices are as
follows –
i) On plug-in to USB, the device must draw no more than 100mA.
ii) On USB Suspend the device must draw no more than 500μA.
iii) A Bus Powered High Power USB Device (one that draws more than 100mA) should use PWREN# to keep
the current below 100mA on plug- in and 500μA on USB suspend.
iv) A device that consumes more than 100mA cannot be plugged into a USB Bus Powered Hub.
v) No device can draw more that 500mA from the USB Bus.
Interfacing the UM232H module to a microcontroller (MCU), or other logic for a bus powered design would
be done in exactly the same way as for Self-Powered designs (see Section 7.3), except that the MCU or
external logic would take its power supply from the USB bus (either the 5V on the USB pin, or 3.3V on the
3V3 pin).
16
? Copyright 2012 Future Technology Devices International Ltd
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相关代理商/技术参数 |
参数描述 |
|---|---|
| UM232H-B | 制造商:Future Technology Devices International (FTDI Chip) 功能描述:BRD BREAKOUT USB HS FT232H 制造商:Future Technology Devices International (FTDI Chip) 功能描述:Development Module for FT232H with a Female Connector |
| UM232H-B-01 | 功能描述:界面开发工具 USB to Serial/Paral. Break-out Board RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| UM232H-B-NC | 功能描述:界面开发工具 USB to Serial/Paral. Break Out Board RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| UM232H-B-WE | 功能描述:界面开发工具 USB to Serial/Paral. Break Out Board RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| UM232M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
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