Answered

• RE: SN75C189: About relation between Response and Threshold Control Inputs and threshold voltage

  

  Masanori Tachibana

  Resolved

  Hello Max-san, Thank you for confirming by the experiment. And I'm sorry to trouble you. However, I do not understand the principle of operation well. I want to know more concrete numerical values and formulas. Is the division ratio “2.67” the result…

  • over 8 years ago
  • Interface
  • Interface forum
Answered

• RE: TRS3122E: Looking for RS232 Transceiver with Hi-Z Input

  

  Hao L

  Resolved

  Antonio, You can take a look at DS14C89A, MC1489A, SN75C189. They are receivers only without internal pulldown resistors. Regards, Hao

  • over 6 years ago
  • Interface
  • Interface forum

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