topic Re: LPC54628 5v tolerant? in LPC Microcontrollers

LPC54628 5v tolerant?

mspenard603 — Tue, 12 Mar 2019 18:37:54 GMT

Hi All,

Does the LPC54628 have 5v tolerant IO?

Looking at the line-card, and while some LPCs explicitly state 5v tolerant IO the LPC54000 doesn't say either way.

https://www.nxp.com/docs/en/product-selector-guide/LPCMICROLNCD.pdf

Re: LPC54628 5v tolerant?

Sabina_Bruce — Wed, 13 Mar 2019 18:55:28 GMT

Hello!

In reference to the manual the I/O pins are typically 5V tolerant. The footnotes for Table 4, specify the different configurations for different pins in the LPC546XX datasheet. In addition you can refer to page 83 of the same document for the limiting values on the pins. It is always recommended to work slightly below the limits.

For specific pin configurations which can allow for 5V, please refer to the LPC546XX datasheet:

https://www.nxp.com/docs/en/data-sheet/LPC546XX.pdf

For general information regarding these pins functions, refer to the LPC546XX manual:

https://www.nxp.com/webapp/Download?colCode=UM10912

Hope this helps!

Re: LPC54628 5v tolerant?

mspenard603 — Wed, 13 Mar 2019 20:16:26 GMT

Thank you sir.

I've been trying to verify this with the iMX RT1062 as well. I've read through all the available docs here, but can't seem to find a mention:

i.MX RT1060 MCU/Applications Crossover Processor | Arm® Cortex®-M7 @600 MHz, 1MB SRAM | NXP

Re: LPC54628 5v tolerant?

Sabina_Bruce — Fri, 15 Mar 2019 17:45:03 GMT

Hi Mike,

Could you please post your new question in the i.MX RT space (link), so the correct person can help you out.

Thank you!

Sabina