TI中文支持网Other Parts Discussed in Thread:TXS0102, LSF0102, TXB0104
好的！那我更有意向选TX0102（我们只需要两路），至少可以不用外接上拉电阻（其实我的项目需要PIN共用问题，就是这个PIN 既要作为SPI通讯用也要作为IIC,如果不需要上拉动作，也就不需要切换到SPI要求断开的额外操作），再说TXS0102 比较LSF0102更便宜。
另外能否顺便告诉下为什么TXB0104不能用于IIC，从规格书上的描述我还是没明白，另外IIC单端接上主设备（没接从设备的时候，看上去波形正常，但是接了从设备后就变得很奇怪了，附件有波形）
就是主控经过这个转换电压后的波形（低电压器件好多毛刺一样的）
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您好，
已经收到了您的案例，调查需要些时间，感谢您的耐心等待。
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由于转换器存在漏极开路驱动程序不兼容问题，I2C与TXB型转换器不兼容。 漏极开路输出太弱，无法驱动TXB输入太高(由于缺少PMOS驱动器和I/O处的内部4K系列电阻)，如果外部上拉电阻足够强，则TXB的输出太弱，无法覆盖它。
TRANSLATE with x
English
Arabic
Hebrew
PolishBulgarian
Hindi
PortugueseCatalan
Hmong Daw
RomanianChinese Simplified
Hungarian
RussianChinese Traditional
Indonesian
SlovakCzech
Italian
SlovenianDanish
Japanese
SpanishDutch
Klingon
SwedishEnglish
Korean
ThaiEstonian
Latvian
TurkishFinnish
Lithuanian
UkrainianFrench
Malay
UrduGerman
Maltese
VietnameseGreek
Norwegian
WelshHaitian Creole
PersianTRANSLATE with
COPY THE URL BELOW
BackEMBED THE SNIPPET BELOW IN YOUR SITE
Enable collaborative features and customize widget: Bing Webmaster Portal
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