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TP3420A ISDN Substitute

Dan LaChance

Expert 1770 points

Customer is looking at TI’s TP3420A ISDN S/T device but it’s NRND from TI. http://www.ti.com/product/tp3420a

I can't find another ISDN equivalent device from TI. Can you help?

over 12 years ago

0 Jeffery Pfarr over 12 years ago

TI__Genius 14317 points

I don't see an alternative ISDN S/T Transceiver in our portfolio.

0 LeonardEllis over 12 years ago

TI__Guru 71526 points

Hi Dan,

Although the TP3420A is NRND, it is still a valid device to use in a design. TI obsolescence policy states basically that as long as a device is still being purchased by customers, it will not be obsoleted (see Quality Manual: http://focus.ti.com/quality/docs/gencontent.tsp?templateId=5909&navigationId=11224&contentId=5020#obsolescence .)

The TPA3420A is the only ISDN Interface device we have available.

-Leonard