TUSB320: What's the difference between TUSB320 and TUSB320I?

Harson

Part Number: TUSB320

Hi, Team

I'm confused between the 2 parts.

It looks like in the datasheet of TUSB320, very little information about TUSB320i except the temperature range.

But it described in page 7 about I2C_EN, tusb320 is EN_N, TUSB320i is EN, but no pin description shows this difference.

If customer uses TUSB320i, what's the logic of this pin? No sufficient information can be found to guide customer how to tell it.

I also see a lot of TUSB320xx, some are HI, some are LI, HAI, LAI.

Is there a document to explain the difference?

0 Brian Zhou over 6 years ago

"I" means industry temperature range.

0 Harson over 6 years ago in reply to Brian Zhou

Hi, Brian

Can you confirm that's the only difference?

As I said in page 7 of the datasheet, the enable function by pin, TUSB320 & TUSB320I has different name, one is EN, another is EN_N.

It has opposite polarity.

Can you please check the enable function logic?

0 Brian Zhou over 6 years ago in reply to Harson

for TUSB320, it only use EN_N active low for enable.

for I version , It has TUSB320HAI and TUSBLAI, HAI is active H for enable, LAI is active L for enable.

0 Harson over 6 years ago in reply to Brian Zhou

Brian,

TUSB320HAI/LAI are another two different parts in ti.com, they have other product folder and datasheets.

TUSB320 product folder in TI.COM contains two orderable parts:

These two parts shares the same datasheet document.

My question is if TUSB320RWBR use EN_N active low for enable, does TUSB320IRWBR use EN active High for enable?

There is no information in datasheet shows this difference. It may lead customer design a wrong schematic.

TUSB320

TUSB320I

0 Brian Zhou over 6 years ago in reply to Harson

for TUSB320RWBR and B320IRWBR, only difference is temperature. they both use EN_N active low for enable.

Regards,

Brian

Interface forum