TCA39416: PIC list of AR3DPD - I3C TCA39416, I2C Alert TXB0104 schematic review and 74AVC4TD245GU replacement

Janet Lin

Intellectual 2500 points

Part Number: TCA39416
Other Parts Discussed in Thread: TXB0104, TXS0104E, LSF0204

Hi E2E,

Here's the PIC list of AR3DPD use level shifter or mux solution.

Could you kindly help to review the schematic? May I loop you in to mail to double check the total solution?

For "74AVC4TD245GU", is "SN74AVC4T774RSVR" Bom 2 Bom solution for replacement?

I3C TCA39416

I2C Alert TXB0104

UART , 74AVC4TD245GU

BR,

Janet

9 months ago

0 Tyler Townsend 9 months ago

TI__Guru 63538 points

Hi Janet,

I will respond back tomorrow morning.

Regards,

Tyler

0 Tyler Townsend 9 months ago in reply to Tyler Townsend

TI__Guru 63538 points

Hi Janet,

For the TCA39416 review, the schematic looks good. OE referenced to VCCA. VCCA = 1.0V, VCCB = 1.2V.

For TXB devices, I will tag Jack to answer.

Regards,

Tyler

0 Jack Guan 9 months ago in reply to Tyler Townsend

TI__Guru 60331 points

Hi Janet,

Can you confirm if the I2C alert signals are push-pull or open drain? If the signals are also open-drain driver based, then the TXS0104E should be recommended instead as the TXB0104 does not support open drain signals.

As for the cross to the NXP part, AVC4T774/AXC4T774 is compatible to replace here, though note that both these devices do not offer /OE configuration.

Regards,

Jack

0 Janet Lin 8 months ago in reply to Jack Guan

TI__Intellectual 2500 points

Hi Jack,

Is it can use LSF0204 to replace TXB0104? We need open drain support

BR,

Janet

0 Jack Guan 8 months ago in reply to Janet Lin

TI__Guru 60331 points

Hi Janet,

Yes LSF0204 can be used here to support the open drain driving/ level shifting.

Regards,

Jack

0 Tyler Townsend 8 months ago in reply to Janet Lin

TI__Guru 63538 points

Hi Janet,

We will respond soon.

Regards,

Tyler

0 Tyler Townsend 8 months ago in reply to Tyler Townsend

TI__Guru 63538 points

Hi Janet,

Please see Jack's response.

Regards,

Tyler

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TCA39416: PIC list of AR3DPD - I3C TCA39416, I2C Alert TXB0104 schematic review and 74AVC4TD245GU replacement