How many pins does an 8051 microcontroller have?
Last Updated : 27 Jul, 2020 8051 microcontroller is a 40 pin Dual Inline Package (DIP). These 40 pins serve different functions like read, write, I/O operations, interrupts etc. 8051 has four I/O ports wherein each port has 8 pins which can be configured as input or output depending upon the logic state of the pins.
What is the RESET pin on the 8051?
Pin 9:- As made clear previously RESET pin is utilized to set the micro-controller 8051 to its primary values, whereas the micro-controller is functioning or at the early beginning of application. The RESET pin has to be set elevated for two machine rotations. Pins 10 – 17:- recognized as Port 3.
What does p1.0 mean on a microcontroller?
So, P1.0 means first pin of port 1, P1.1 means second pin of the port 1 and so on). These pins are bidirectional pins. Reset pin. It is an active-high, input pin. Therefore if the RST pin is high for a minimum of 2 machine cycles, the microcontroller will reset i.e. it will close and terminate all activities.
What is the 11th pin on a microcontroller?
11th pin is TXD (serial data transmit pin) which is serial output pin. Through this output signal microcontroller transmits data for serial communication. 12th and 13th pins are for External Hardware Interrupt 0 and Interrupt 1 respectively.
What is a pin diagram in a microcontroller?
Pin Diagram or Pin out of a device will specify the pins of an electrical connector along with its functions. Before going to the 8051 Microcontroller Pin Diagram, read the Introduction to 8051 Microcontroller.
What is the ground pin on an 8051?
Generally, a Quartz Crystal Oscillator is connected here. Pin 20 (GND): Pin 20 is the Ground Pin of the 8051 Microcontroller. It represents 0V and is connected to the negative terminal (0V) of the Power Supply. Pins 21 – 28 (PORT 2): These are the PORT 2 Pins of the 8051 Microcontroller.
Are there any real world uses for 8051?
2. Solar Panel/Sun Tracker using 8051 – is a very useful real-world project which is relevant in our times. The objective of this project kit is to track direction of Sun and turn the solar panel accordingly where maximum light is incident on the panel.