AM26LV32E: Treatment for A , B input when they are not used

Hi,

I have additional question for AM26LV32E. Can it use with AM26LS31(driver)?

-> I just would like to confirm if user can use AM26LS31(driver) and AM26LV32E(reciever).

Regards,
Nagata.

Nagata,

You can leave the unused A/B pins of AM26LV32E open, which are internally biased (session 8.2 on the data sheet). If you want to add pull up or pull down, please add pull up on A pin and pull down on B pin.

AM26LS31 can work with AM26LV32E. Although the supply is different, the voltage on the bus are compliant with RS-485 standard.

Please let me know if you have more questions.

Regards,

Hao

Hao -san,

Thank you very much for your support. I would like to check about AM26LS32A, too.

The output of AM26LS32A is 2.5V or 2.7V as minimum in datasheet.

Do you have max value for the output of AM26LS32A? Is it almost VCC (=5V)?

Regards,
Nagata.

Hi, Hao -san,

I'm sorry to ask question frequently. But Let me confirm again. When the power source for AM26LM32E is the 3.3-V, is it possilbe the logic input to 5V?
Because datasheet explains that Accept 5-V Logic Inputs With 3.3-V Supply.

Regards,
Nagata.

Shunsuke-san,

Yes, the maximum output voltage would be close to Vcc, depending on the load condition.

Regards,

Hao