TCA9539-Q1: SDA SCL pull up to5v

Raymond He

Expert 1990 points

Part Number: TCA9539-Q1

dear

TCA9539-Q1 VCC=3.3V and SDA SCL pull up to5v as the mcu work at 5v power sullpy，and TCA9539-Q1 DS shoews I/O port voltage can work 5v， is it correct？thanks

over 2 years ago

0 Clemens Ladisch over 2 years ago

Guru 319520 points

Correct. Also see footnote (1) in section 6.3.

0 Jack Guan over 2 years ago

TI__Mastermind 46821 points

Hey Raymond,

As Clemens' mentioned, this configuration is supported by the device.

Let us know if you have any further questions.

Regards,

Jack

Interface

Interface forum

TCA9539-Q1: SDA SCL pull up to5v