these two pins are biasing pins of ICs.
7408 is an active componet that need power supply to work otherwise it wont work
it have 40 pins 1st one is ground and last one is Vcc. Itplh = 450
just conect gnd to the vcc
um66 is a melody generator cmos ic it is a three terminal ic pin no: 1 is set to ground, and pin 2 is Vdd pin 3 is the output melody signal this ic generally operates from 1.5 to 5 volts it is generally used in toys, bells etc................
pin tetel
7408 is an active componet that need power supply to work otherwise it wont work
555 timer is used to generate clock signals in the ic 555 timer the pin no 8 is represents vcc
You might hav connected pins 3 and 12 both to the ground or vcc.... connect 3 to vcc and 12 to ground....:-)
it have 40 pins 1st one is ground and last one is Vcc. Itplh = 450
just conect gnd to the vcc
when the dc supply given, dc load line lies in the Ic and Vcc. when the AC supply given, AC load line lies in the Ic and Vcc.
yes u can use.... ground is the closed loop connection(it is introduced for the circuit not to be open circuit condition).....if the vcc supply is dc input
um66 is a melody generator cmos ic it is a three terminal ic pin no: 1 is set to ground, and pin 2 is Vdd pin 3 is the output melody signal this ic generally operates from 1.5 to 5 volts it is generally used in toys, bells etc................
You can just Google the IC number and check the datasheet. This is very useful for getting the pin configuration of other IC as well. Anyway 7486 is a 14pins, 4 independence gates of XOR Gate Input Output #1 Pin1 Pin2 PIN3 #2 Pin4 Pin5 PIN6 #3 Pin10Pin9 Pin8 #4 Pin13Pin12 Pin11 Others Vcc Pin 14 Gnd Pin 7 Hope that helps.
The 8085 is a 40 pin ic because Intel designed it that way.
ic um66 is a melody generator with 3 terminals (1-o/p, 2-vcc,3-grnd)
A: a ground on an IC is just a reference to the lowest point of voltage that can be applied.