GPIO maximam current of i.MX6DL.

[takashitakahash]

Hi community.

Our customer has question below.

I have a question about the GPIO of the maximum output current of i.MX6DL .

Would you like to what mA GPIO of the maximum output current.

Also GPIO of the current provisions are listed anywhere in the data sheet or RM .

[igorpadykov · Accepted solution]

Hi Takashi

GPIO maximum output current is not defined by datasheet,

however limitation may be by max. temperature defined in

Table 6. Operating Ranges datasheet and Output Driver

Impedance given in Table 33,34.

http://cache.freescale.com/files/32bit/doc/data_sheet/IMX6DQCEC.pdf

Best regards

igor

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[takashitakahash]

Dear igor

Our customer has question below .would please advise.

I checked IBIS model.

Q1,

The absolute maximum rating of the output current of the GPIO?

Is to destroy and too much current through CMOS transistors?

Q2,

My understanding is correct ? The output current is
limited by the VOH/VOL and the DSE.

The examples listed below.

Design examples)OVDD=3.3V and DSE:111 = 20 Ω than
(Table36 of IMX6SDLAEC ), VOH=2.64V, VOL=0.66V design.

Ioh = (OVDD-VOH) / 20 Ω = (3.3-2.64) / 20 = 33 mA

IOL = Ω = 0.66 VOL 20 / 20 = 33 mA

Therefore, less than 33 mA output current in order to satisfy the VOH/VOL.

Q3,

For our specific use cases.

May be used currently in our system GPIO ports up to 1.3
mA (only one port. Others are used in less than 1 mA).

At this time, the VOH output of 3.3 V. But we would not
be able to destroy ?.

[BiyongSUN]

Please check

Freescale Semiconductor, Inc.
Data Sheet: Technical Data
Document Number: IMX6SDLIEC
Rev. 5, 06/2015

i.MX 6Solo/6DualLite
Applications Processors
for Industrial Products