How many milliamperes does a GPIO pin of the MCU draw minimum and maximum? Where can I look in the datasheet. _________________ Best Regards...
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jeremiah
Joined: 20 Jul 2010 Posts: 1368
Posted: Wed Aug 17, 2022 8:23 am
The electrical characteristics section of the data sheet tends to have all that info
Ttelmah
Joined: 11 Mar 2010 Posts: 19655
Posted: Wed Aug 17, 2022 8:37 am
It's more complex than on the simpler chips.
15mA max on any four pins.
25mA max on a group of 8.
MCUprogrammer
Joined: 08 Sep 2020 Posts: 221
Posted: Wed Aug 17, 2022 8:43 am
So where is it written? Can you share an example? _________________ Best Regards...
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dyeatman
Joined: 06 Sep 2003 Posts: 1946 Location: Norman, OK
Posted: Wed Aug 17, 2022 10:26 am
As jeremiah said above, you need to read the datasheet Electrical Characteristics section (use the datasheet index).
Absolute Maximum Ratings
Ambient temperature under bias..........-40°C to +125°C
Storage temperature ...................... -65°C to +150°C
Voltage on V DD with respect to V SS -0.3V to +4.0V
Voltage on any pin that is not 5V tolerant with respect to V SS(3)... -0.3V to (VDD + 0.3V)
Voltage on any 5V tolerant pin with respect to V SS when VDD 3.0V(3). ... -0.3V to +5.5V
Voltage on any 5V tolerant pin with respect to Vss when V DD < 3.0V(3) .... -0.3V to +3.6V
Maximum current out of VSS pin .........................................300 mA
Maximum current into V DD ................................................300 mA
Maximum current sunk/sourced by any 4x I/O ........................15 mA Maximum current sunk/sourced by any 8x I/O pin ...................25 mA
Maximum current sunk by a group of I/Os between two VSS pins(4)...200 mA
Maximum current sourced by a group of I/Os between two VDD pins(4) ....200 mA _________________ Google and Forum Search are some of your best tools!!!!
MCUprogrammer
Joined: 08 Sep 2020 Posts: 221
Posted: Thu Aug 18, 2022 12:57 am
thanks... _________________ Best Regards...
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