Different chip pin definitions are different, here is a brief introduction to some common chip pin definitions:
1. Single chip chip pin definition
Microcontrollers usually have multiple pins, such as the common 51 series microcontroller pin definition is as follows:
- Port P0: indicates eight common I\/O ports
- P1 port: provides eight common I\/O ports
- P2 port: provides eight common I\/O ports
- P3 port: provides eight common I\/O ports
- RESET: resets a port
- VSS: ground port
- VDD: indicates the positive port of the power supply
2. Pin definition of integrated circuit chip
The pin number of integrated circuit chips is usually large, for example, the common model 74HC595 chip pin definition is as follows:
- SER: specifies the serial input port
- SRCLK: indicates the shift clock input port
- RCLK: indicates the output latch clock input port
-OE: indicates the port on which the output is enabled
- Q7' : Serial output port
- GND: ground port
- QA-QH: 8 parallel output ports
- VCC: indicates the positive port of the power supply
3. Sensor chip pin definition
Sensor chips usually contain multiple pins, such as the common LM35 temperature sensor pin definition is as follows:
- Vs: indicates the positive port of the power supply
- GND: ground port
- Vout: indicates the output port
It should be noted that the pin definition of the chip produced by different manufacturers may be different, and you should pay attention to the data manual of the chip when using to ensure that the pin is correctly connected
The definition of chip pins involves different types of chips, such as analog integrated circuits, digital integrated circuits, microcontrollers, and so on.
But in general, the definition of chip pins mainly includes the following types: 1. Power pin: provides positive and negative power supply to the chip.
2. Ground pin: Provides the ground cable connection of the chip.
3. Input pin: used to receive external input signals.
4. Output pin: used to output the processing result of the chip.
5. Control pin: used to control the operating state of the chip, start or stop function.
6. Clock pin: Provides a clock signal, which is used to synchronize various parts of the chip.
The definition of the chip pin varies depending on the chip type and manufacturer.
You will need to check the relevant chip's data book in the specific application for more detailed pin definitions and usage.