how to identify or chick any IC to know its terminals and what devices can help me that action?

Question

I want full detailled answer including any and all sides that is related to that subject

Answer 1

I think you mean how do you identify the pin numbering on an IC.

First the pin numbering depends on the type of package. Older ICs usually have pins. These are "Dual In-line Package" or DIP. Pin numbering goes counterclockwise from pin 1 which is identified by a dimple or a bar at that end of the IC.

Surface mount ICs are in several types of packages, but the most common are"

SOIC - small outline IC, these guys are pinned similar to the DIP. Look for a dimple near pin 1 or look for the beveled edge along the entire side.

PLCC - PLCC is a bit different. It has one beveled edge and one cut corner. The beveled edge also may have a dimple right in the middle. Pin 1 will be in the middle of the beveled edge and pin numbers continue from that point CCW around the device.

QFP- Quad Flat Pack is similar to PLCC, but pin 1 is in the corner with the dimple.

BGA - Ball Grid Array. Don't even try with this part. The pins are under the part in a grid and are not accessible for viewing anyway. But they are in a grid usually designated with rows as numbers and columns as letters. So pin A1 is in the corner near the cut corner.

Answer 2

Huh? You want to know what IC chips do and the pin outs? You say you want all details, but you didn't really explain your needs.

All you have to do is get the part number and manufacturer from the IC, then look it up on the company's data sheet.

The numbers starting 74 are usually Texas Instruments and numbers starting 4 are Motorolas for example, and many companies follow the similar naming convention.

Keep in mind, there are many custom chips that details are kept confidential.