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Introduction to Microcontroller Programming

About PICmicro Chips

Clocking Your PICmicro Devices

E-Blocks

Flowcode Step By Step

PICmicro Projects

Labs

Current Limits

<^< Outputting Data | Course Index | Memory >^>

At some stage you will become interested in the specification of each of the pins of the PICmicro when they are used as digital inputs, analogue inputs, or as digital outputs. It is quite important to be aware of the limitations of the device when used for switching output devices. You should be aware of these limitations at all times. Exceeding these values even for a short time may cause permanent damage to the PICmicro.

Maximum current sunk/sourced by any I/O pin25mA
Maximum current sunk by all ports200mA
Maximum current sourced by all ports140mA
Maximum current out of VSS (Gnd) pin95mA
Maximum current into VDD (5V) pin70mA

Fortunately the E-blocks you will use on this course all have current limiting resistors which will protect your PICmicro device. When using the prototype or patch board you will have no such protection and care must be taken not to damage your device.

<^< Outputting Data | Course index | Memory >^>

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Page last modified on January 30, 2012, at 02:40 PM