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  • TI Thinks Resolved

MAX232: MAX232x Dual EIA-232 Drivers/Receivers

Intellectual 540 points

Replies: 2

Views: 232

Part Number: MAX232

It says we can connect C3 to both Vcc and GND. What difference does it make in the working of the total system?

  • Genius 17605 points

    Shibin,

    Theoretically connecting C3 to Vcc or GND doesn't have any impact on the system. The reason is the charge pump output is the same by either way. You can refer to this blog for the details of the charge pump. The comments about C3 connection can be found in the paragraph between equation (2) and (3).

    Please let me know if you have more questions.

    Regards,

    Hao

  • In reply to Hao L:

    thank you @Hao

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