SN74AVC16T245: Power up sequence between VCCA and VCCB

Hirotaka Matsumoto

Part Number: SN74AVC16T245
Other Parts Discussed in Thread: SN74AVCA164245, , SN74AXC8T245

Hi all

Would you mind if we ask SN74AVC16T245 and SN74AVCA164245?

Do SN74AVC16T245 and SN74AVCA164245 have power up sequence between VCCA and VCCB?

We recognize that VCCA should be up before VCCB for the ALVC164245 at follows URL,
https://e2e.ti.com/support/logic/f/151/t/616807?tisearch=e2e-sitesearch&keymatch=SN74ALVC164245%20sequence

Kind regards,

Hirotaka Matsumoto

over 6 years ago

0 ShreyasRao over 6 years ago

TI__Guru 62600 points

Hi Hirotaka -san,

Please read the FAQ on power sequencing for the TI translation.

Please let me know if you have any question after that.

I can see if the FAQ can be made more effecient with your feedback.

0 ShreyasRao over 6 years ago in reply to ShreyasRao

TI__Guru 62600 points

Hi Hirotaka -san,

Would you consider using the newly released SN74AXC8T245 device instead of the SN74AVC16T245?
The RHL package is small enough to replace the 16 channel device and gives more routing flexibility. This device doesnt have any power sequencing requirements and any power supply can be ramped in any order at any rate.

0 Hirotaka Matsumoto over 6 years ago in reply to ShreyasRao

Guru 27585 points

ShreyasRao san

Thank you so much for your help!

The customer looks for the replacement for TC74VCX163245FT.
And then, they would like to use without power sequence.
It requires full compatible(pin and PKG size).

Kind regards,

Hirotaka Matsumoto

0 ShreyasRao over 6 years ago in reply to Hirotaka Matsumoto

TI__Guru 62600 points

I pulled up the cross reference tool and found the replacement below:
SN74ALVC164245DGG

www.ti.com/.../universalsearch.tsp

0 Hirotaka Matsumoto over 6 years ago in reply to ShreyasRao

Guru 27585 points

ShreyasRao san

Thank you for your reply.

I pulled up the cross reference tool and found the replacement below:
SN74ALVC164245DGG
www.ti.com/.../universalsearch.tsp
->Therefore, we confirmed whether other devices have power up sequence or not.

Kind reggards,

Hirotaka Matsumoto

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SN74AVC16T245: Power up sequence between VCCA and VCCB