SN74AXCH8T245: SN74AXC8T245 & SN74AXCH8T245

James Chen

Prodigy 40 points

Part Number: SN74AXCH8T245
Other Parts Discussed in Thread: SN74AXC8T245, , SN74AVCH8T245

Dear Sir:

The current system uses SN74AXC8T245 as the I2S&SPDIF buffer.

Because SN74AXC8T245 is out of stock recently, can I use SN74AXCH8T245 instead?

Best Regards.

James Chen

over 2 years ago

0 Dylan Hubbard over 2 years ago

TI__Mastermind 42670 points

Hey James,

I'm sure you can, they are p2p devices with the only difference being the "H" indicating that it has Bus-hold. Functionally, they are the same.

0 James Chen over 2 years ago

Prodigy 40 points

Dear Sir:

Our application is to use two SN74AVCH8T245, respectively connect to different I2S signal sources, and then connect the outputs of the two SN74AXCH8T245 together. Will there be a problem with this circuit?

(Only one SN74AXCH8T245 output is valid at the same time)

Best Regards.

James

0 Dylan Hubbard over 2 years ago in reply to James Chen

TI__Mastermind 42670 points

Hey James,

I see no issue with this, but I will mention that this leaves risk for bus contention so be very careful to only have one device enabled at a time.

Logic

Logic forum

SN74AXCH8T245: SN74AXC8T245 & SN74AXCH8T245