SN74LVC4245A: SN74LVC4245A

Does the new device actually work as a transceiver (i.e., DIR switches directions)?

It might be possible that the new device implements I_off, i.e., only active outputs driving high enable the diode.

Thank you Clemens Ladisch.

But, given than:

- unfortunately Ioff is not present in the datasheet

-In datasheet 6.3 ESD Ratings,  it is written 2000V robust for Human body model (HBM), per ANSI/ESDA/JEDEC JS-001, all pins.

All I/O must have ESD protections diode don't you think?

For pins without a clamping diode to V_CC, ESD protection for positive overvoltage is implemented with (the equivalent of) Zener diodes.

very interesting Clemens, but in order not to deviate from my objective, how can I justify without ambiguity that it is normal not to have esd protection diodes on vcc, with date code 2442 while they are present on datecode 1731?Because without official documentation explaining this difference, this kind of difference can immediately make one think of counterfeiting...

Clemens, it isvery useful, thank you for your precise information and your state of mind about this change that you would not have expected either :)