TM4C1294NCPDT: GPIO voltage

Connie Lu1

Intellectual 2080 points

Part Number: TM4C1294NCPDT

Hi team,

The old datasheet (attached) says the GPIO is 5V tolerant when configured as inputs (page 738). This datasheet is dated 12/12/2013.

The updated data sheet (dated 2014 and link below) says all pins are only 3.3V tolerant with a maximum voltage of 4V on the GPIO.

https://www.ti.com/lit/ds/symlink/tm4c1294ncpdt.pdf?ts=1617650064611&ref_url=https%253A%252F%252Fwww.google.com%252F

Some of my customer's designs might have 5V on certain pins. Could you clarify if the part is 5V tolerant or 3.3V? Could you also clarify where there is a change in GPIO tolerant voltage?

329-024-1_TexasInstruments_TM4C1294NCPDT.pdf

Thanks,

Connie

over 3 years ago

0 Ralph Jacobi over 3 years ago

TI__Guru*** 128125 points

Hello Connie,

The attach Datasheet was an Advance Information version. See the following note:

ADVANCE INFORMATION concerns new products in the sampling or preproduction phase of development. Characteristic data and other specifications are subject to change without notice.

TM4C129x is 3.3V tolerant with a maximum voltage of 4V on the GPIO as stated on the production release datasheet.

0 Connie Lu1 over 3 years ago in reply to Ralph Jacobi

TI__Intellectual 2080 points

Thank you Ralph!

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TM4C1294NCPDT: GPIO voltage