TXU0104-Q1: B side supports TTL?

Jerry Chen

Expert 5110 points

Part Number: TXU0104-Q1
Other Parts Discussed in Thread: SN74LS00,

Hi team,

I think B side can support TTL when VCCB=5V. Correct?

Thanks.

over 2 years ago

+1 Dylan Hubbard over 2 years ago

TI__Mastermind 42600 points

Hey Jerry,

By TTL are you just meaning 5 V signals? What are you using to determine TLL compatibility?

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

TI__Expert 5110 points

Hi Dylan,

Yes, it is 5V.

+1 Emrys Maier over 2 years ago in reply to Jerry Chen

TI__Guru* 96591 points

Hey Jerry,

I think what Dylan was getting at is that TTL and CMOS 5V are not the same thing:

The 5-V TTL standard is used to interface with older bipolar logic devices (for example, SN74LS00). Note that the threshold is much lower relative to the supply when compared to the threshold for the 5-V CMOS or 3.3-V LVTTL standard.

If you're just using TXU0104-Q1 to interface with a 5V CMOS system, then it will work fine, however if you need something to interface with the TTL standard, then a 3.3V supply would work better.

0 Jerry Chen over 2 years ago in reply to Emrys Maier

TI__Expert 5110 points

Hi Emrys,

Customer need to convert 3.3V CMOS input (A side) to 5V TTL output (B side). I think the 5V CMOS(B side) output of TXU0104-Q1 can be compatible to the downstream 5V TTL input. Am I correct? Or, do we have other automotive grade device can support this application?

Thanks.

+1 Dylan Hubbard over 2 years ago in reply to Jerry Chen

TI__Mastermind 42600 points

Hey Jerry,

Yes, this device will work for this application.

Logic

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TXU0104-Q1: B side supports TTL?