A microprocessor cant work as a stand alone unit.to make it work we have to interface memory and input out devices and so the PCB of microprocessor based system will be larger.Microcontroller consists of processor,memory and peripherals on a single chip and so needs no interfacing.Microcontroller can be programmed for any specific task.
You actually have that reversed. A microcontroller is connected to a relay via a ULN2803 (or other power device driver IC) because the output pins of the microcontroller can't drive relays. The ULN2803 darlington transistors provide the power amplification and the inductive kickback protection needed to drive the relay while only lightly loading the microprocessor output pins.
what is the name of latest micro computer
66666
The 8051 runs on +5vdc.
ULN2003 is used where the current rating and voltage rating of a motor or any load which is to handled by microcontroller is more than the current handling and voltage handling capacity of that microcontroller. A pin of ULN2003 can handle 600 mA current. It can withstand voltage upto 50 volt. A pin of any microcontroller can handle current upto 200 mA and controller voltage is around 5 volt. So we use uln2003 in parallel to any microcontroller to drive heavy load devices. Uln2003 accepts TTL from MCU which may be 5v or 0v and depending on this value ULN2003 turns on the heavy load or turn it off respectively. for more inquiry mail me at grv_sh@yahoo.co.in
That depends on the specific microcontroller.
To limit the amount of current to the ports
x
The PIC is a specific architecture of microcontroller.
There should be some process to stop the execution of a program.In microcontroller it is done by jumping to same location.
The voltage of the 8031 microcontroller is 2.7V to 5.5V.
The 8051 Microcontroller is a microcontroller ("chip") developed by Intel in 1980.
PIC Microcontroller which means Peripheral Interface Controller. PIC Microcontroller is originally developed by General Instrument's Microelectronics Division.
Segger Microcontroller Systems was created in 1991.
to determine the state condition of microcontroller's input when microcontroller is reading the input port
The difference is base on the requirement of their0 application.
no it's not a microcontroller and lm 324 is quad low power comparator...