Reducing current draw on using CMOS logic gates

Other Hardware General Electronics
14

Grumpy_Mike:
What makes you think the current is low?

the info from this page ?

Output current is 5mA to 10mA (for the 4000 series CMOS chips)

Grumpy_Mike:
You are putting a very big load on a logic gate and could cause trouble, you ALWAYS need a resistor or some other current limiting device with an LED.

i suppose chaining FOUR ICs might be a different case...

but i actually built this circuit with the 4026;



which says;

Resistors are not required for the LEDs because the 4026 IC limits the current to about 5mA for each LED.

and it seems to run okay.