SN74LVC1T45: What is the difference between SN74LVC1T45YZPR and SN74LVC1T45YZPRB

Kailun Liu

Expert 3003 points

Part Number: SN74LVC1T45

Tool/software:

Hi Team,

Customer is asking:

What is the difference between SN74LVC1T45YZPR and SN74LVC1T45YZPRB?

6 months ago

0 Clemens Ladisch 6 months ago

Guru 316470 points

Probably a different reel, or a different orientation in the reel; you'd have to look at that old revision of the datasheet.

0 Joshua Salinas 6 months ago

TI__Mastermind 22000 points

Hello Kailun,

Where is the customer seeing SN74LVC1T45YZPRB? I've checked down to Rev. K (released in 2014) and don't see any mention of LVC1T45YZPRB.

Like Clemens mentioned, most likely it's a different reel or device orientation in the reel.

Regards,

Josh

0 Kailun Liu 6 months ago in reply to Clemens Ladisch

TI__Expert 3003 points

Hi Clemens, Josh,

Thanks for your reply. Customer saw it in the label of reel.

0 Clemens Ladisch 6 months ago in reply to Kailun Liu

Guru 316470 points

In revision G of the datasheet, the package option addendum is dated 2006-07-31 and has no information about the -B variant. I have not been able to find revision F.

So by now, nobody knows.

Check the pin 1 marker in the reel. Other possible changes might be a different ball material (but lead got a different package code, so it's certainly lead free) or a wider temperature range.