| Left lower foot |
| Pin diagram |
- Original content, please do not reprint.
There are a lot of pins on the chip, and each pin has its own function. The most critical is the first pin, which acts like the gate of a chip. You must find this door to enter the chip.
The anchor point of the chip is the marker of this gate, and we need to use this marker to locate the gate.
Today, I'm trying to summarize all types of chip locations in one video.
Left lower foot
Chips with a gap on the left side are the most common, and usually chips with a gap on the left side of the chip on the left side are the first leg.
Of course, this left foot position.Sometimes marked with dots. When you see this dot, it means that the first foot is also in the left foot position. Sometimes he doesn't use dots, he uses bars as markers,
Also in the position of the lower left foot, some manufacturers are more careful and will directly mark the position of the first foot with a word. Sometimes we come across it too
Deliberately mysterious chip, without notches or any positioning marks. How do you find their first pin? We can take a closer look and there is actually a gap here.
It looks as if it has been cut off, with the first pin underneath the notch. Sometimes, you may come across a chip with spots all over the place, which can be very confusing.
Actually, you just need to identify this little dot. The first pin below the dot is it. This problem is mainly caused by the chip packaging process during the demoulding process. and
You may even encounter a situation where there is no location point, not even a sign, and usually we have the first foot of the word facing your left foot as the first foot. If it's a single one
The line is inserted straight and is easy to distinguish. Distinction is usually made from left to right.
Pin diagram
If you're unsure, check the pinout diagram in the datasheet. The first pin is usually located on the lower left foot, and the other pins are arranged in clockwise or counterclockwise order.
