PCA9539: Can PCA9539PWR replace TCA9539PWR directly?

Jimmy WANG

Genius 4035 points

Part Number: PCA9539
Other Parts Discussed in Thread: TCA9539

HI team,

Besides the VCC input range being different, Can PCA9539PWR replace TCA9539PWR directly?

thx

over 3 years ago

0 Chris Ayoub over 3 years ago

TI__Genius 15345 points

Jimmy,

There are also two erratas on the PCA9539 that the TCA9539 does not have. If your device is facing those issues you will have to work around these erratas to make sure the device is operational.

Best,

Chris

0 Jimmy WANG over 3 years ago in reply to Chris Ayoub

Genius 4035 points

Hi team,

Is it possible to provide which side can find these two erratas? thx

0 Clemens Ladisch over 3 years ago in reply to Jimmy WANG

Guru 316440 points

See sections 8.2.1.1 and 8.2.4.1 of the PCA9539 datasheet.

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PCA9539: Can PCA9539PWR replace TCA9539PWR directly?