As long as the schematic is guaranteed 1. The pin number of components is consistent with the actual pin number 2. The connection between the components pin is correct: such as 2 feet (1 pin, 2 feet), actually 1 foot, 2 foot power supply. When drawing the original map, it is also necessary to pick up the power, 2 foots. The direction of the components is guaranteed, and there is no direction in the direction.
> 1. When drawing the original drawings, as long as a. The components are applied correctly. b. The pin number of the chip is consistent with the writing method on the chip manual. c. Electrical connection of the circuit is correct. > Connection principle of PCB: Determined depending on the components of the wire number and pin number, and the connection mode in the schematic. > However, when making PCB package library, ensure that the pin is written in the chip's pin-written mode and the writing method on the chip manual, ensuring that the pin is arranged in line with the actual chip arrangement, ensuring the size of the actual chip, and is Perspective of TopView. It is equivalent to the perspective from above, drawing an active 1: 1 model.
