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rs485协议、电路详解(保姆级)
485总线负载电阻Rload不能大于375欧姆。 通常是用单位负载来衡量RS485总线驱动能力的,单位负载的定义则是根据标准的485总线接收器的输入阻抗(12KΩ ...
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今日热点
WH pulls nomination
HHS plans 10,000 job cuts
Announces $1M for WI voter
3 USPS workers charged
Targets 'improper ideology'
Maui doctor charged
Prosecutors seek 7-yrs in jail
To retest 4,000 DNA samples
Sue Trump over dismissals
Congress questions agencies
Saldívar denied parole
Alleged arson attack arrest
Moved to OK prison facility
Court blocks funding freeze
NY official rejects motion
Released from hospital
ICE detains doctoral student
Amsterdam stabbing
Mortgage rates fall
Ordered to preserve chat
Wildfires continue to burn
Handed five-year sentence
Weekly jobless claims fall
Charged in dogfighting case
Tostitos chips recalled
Considers merging ATF, DEA
Flyers fire coach
ACM Awards nominations
Bacteria exposure recall?
US economy grew 2.4%
Ends UT mail ballot system
Relocating to Colorado
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