- 您现在的位置：买卖IC网 > PDF目录1251 > UM245R (FTDI, Future Technology Devices International Ltd)MOD USB PARALLEL FIFO DEV FT245R PDF资料下载
参数资料
| 型号： | UM245R |
| 厂商： | FTDI, Future Technology Devices International Ltd |
| 文件页数： | 19/27页 |
| 文件大小： | 0K |
| 描述： | MOD USB PARALLEL FIFO DEV FT245R |
| 产品培训模块： | USB Introduction |
| 产品目录绘图： | UM245R |
| 标准包装： | 5 |
| 主要目的： | 接口，USB 2.0 至并行 FIFO 电桥 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | FT245R |
| 主要属性： | 300kBps 到 1MBps USB 至并行 FIFO，通过 4 线接口连接 |
| 次要属性： | 免版税驱动器 |
| 已供物品： | 板 |
| 产品目录页面： | 633 (CN2011-ZH PDF) |
| 相关产品： | 768-1012-6-ND - IC USB TO PARALLEL FIFO 32-QFN 768-1011-6-ND - IC USB TO PARALLEL FIFO 28-SSOP 768-1012-1-ND - IC USB TO PARALLEL FIFO 32-QFN 768-1011-1-ND - IC USB TO PARALLEL FIFO 28-SSOP 768-1012-2-ND - IC USB TO PARALLEL FIFO 32-QFN 768-1011-2-ND - IC USB TO PARALLEL FIFO 28-SSOP |
| 其它名称： | 768-1020 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页当前第19页第20页第21页第22页第23页第24页第25页第26页第27页
Document Reference No.: FT_000202
UM245R USB - Parallel FIFO Development Module Datasheet Version 1.04
Clearance No.: FTDI# 124
7
Module Configurations
7.1 BUS Powered Configuration
Figure 7.1 Bus Powered Configuration
Figure 7.1 illustrates the UM245R in a typical USB bus powered design configuration. This can easily be
done by fitting the jumper link on J2, as shown above. The UM245R is supplied in this configuration by
default. 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 dev ice must draw no more than 500μA (2.5mA if remote wake-up is
enabled).
iii) A Bus Powered High Power USB Device (one that draws more than 100mA) should use the
PWREN# pin to keep the current below 100mA on plug- in and 500μA /2.5mA 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 UM245R module to a microcontroller (MCU), or other logic for a bus powered design
would be done in exactly the same way as for a self powered design (see Section 7.2 ), except that the
MCU would take its power supply from the USB bus (either the 5V on the USB pin, or the 3.3V on the 3V3
pin).
? Copyright 2009 Future Technology Devices International Ltd
18
相关PDF资料 |
PDF描述 |
|---|---|
| UMTS 2 | FUSE 2A 250V TLAG IEC SMD |
| UPG1-4-61-303-01 | MAGNETIC CIRC BRKR SP 30A TOG SW |
| UPL111-1-60-503 | MAGNETIC CIRCUIT PROTECTOR 50A |
| UPL2000-D1/B | BNC PLUG CRIMP STR 7538CBL 50/PK |
| UPL2000-D20/B | BNC PLUG CRIMP STR 1505F 50/PK |
相关代理商/技术参数 |
参数描述 |
|---|---|
| UM246 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| UM246M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| UM247 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| UM247M | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
| UM248 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Analog IC |
发布紧急采购，3分钟左右您将得到回复。