max3232芯片手册
TheMAX3222/MAX3232/MAX3237/MAX3241transceivers
haveaproprietarylow-dropouttransmitteroutput
stageenablingtrueRS-232performancefroma
3.0Vto5.5Vsupplywithadualchargepump.The
devicesrequireonlyfoursmall0.1μFexternalchargepump
capacitors.TheMAX3222,MAX3232,and
MAX3241ar
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结果全是英文的……
一般的资料，英文的