數(shù)字電子技朮
標(biāo)簽：
上傳時間： 2013-10-09
上傳用戶：1101055045
Linear Technology offers a variety of devices that simplifyconverting power from a USB cable, but the LTC®3455represents the highest level of functional integration yet. The LTC3455 seamlessly manages power flowbetween an AC adapter, USB cable and Li-ion battery,while complying with USB power standards, all from a4mm × 4mm QFN package. In addtion, two high efficiencysynchronous buck converters generate low voltage railswhich most USB-powered peripherals require. TheLTC3455 also provides power-on reset signals for themicroprocessor, a Hot SwapTM output for poweringmemory cards as well as an uncommitted gain blocksuitable for use as a low-battery comparator or an LDOcontroller. The PCB real estate required for the entire USBpower control circuit and two DC/DC converters is only225mm2.
上傳時間： 2013-11-02
上傳用戶：名爵少年
The LTC®4099 high effi ciency USB power manager andLi-Ion/Polymer battery charger seamlessly managespower distribution from multiple sources in portableapplications. It is differentiated from other USB powermanagers by its bidirectional I2C port that allows the hostmicroprocessor to control and monitor all aspects of theUSB power management and battery charging processes.In addition, a programmable interrupt generation functionalerts the host microprocessor to changes in device statusand provides unprecedented control of power managementfunctions. This high degree of confi gurability allowspost-layout changes in operation, even changes in thefi eld, and it allows a single qualifi ed device to be usedin a variety of products, thus reducing design time andeasing inventory management.
上傳時間： 2013-10-22
上傳用戶：18602424091
USB轉(zhuǎn)CAN上位機軟件
上傳時間： 2013-10-24
上傳用戶：1214209695
USB總線轉(zhuǎn)接芯片CH341中文手冊
上傳時間： 2014-01-25
上傳用戶：Zero_Zero
1. 支持USB1.1或USB2.0通信； 2. 全面支持WIN98、WINME、WIN2000、WINXP、VISTA、WIN7等操作系統(tǒng)； 3. 采用USB口供電，板內(nèi)帶有500mA自恢復(fù)保險絲或保險電阻，保護電腦主板不被意外燒毀； 4. 在對芯片編程時可以使用目標(biāo)系統(tǒng)本身電源，也可以使用編程器從USB口取電供給目標(biāo)板，但應(yīng)保證目標(biāo)標(biāo)電流不大于500mA，以免不能正常編程； 5. 編程完成不影響目標(biāo)板的程序運行； 6. 支持STC全系列芯片燒錄； 7. 編程器提供3.3V與5V的電壓輸出接口； 8. 速度比并口編程更快更穩(wěn)定，更方便筆記本電腦用戶使用； 9. 采用進口原裝芯片，能進行高速穩(wěn)定編程；
標(biāo)簽： USB-TTL STC 新思科電子 單片機燒錄
上傳時間： 2013-11-06
上傳用戶：新手無憂
關(guān)于STM32的USB應(yīng)用方面的知識
上傳時間： 2013-11-10
上傳用戶：wojiaohs
USB接口波形發(fā)生器
上傳時間： 2013-11-20
上傳用戶：jackandlee
STM32 USB Mass Storage學(xué)習(xí)資料.pdf
標(biāo)簽： Storage Mass STM USB
上傳時間： 2013-10-31
上傳用戶：gxmm
單片機讀寫usb、sd卡技術(shù)參考資料
標(biāo)簽： usb 單片機 讀寫 技術(shù)參考
上傳時間： 2013-10-19
上傳用戶：松毓336
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