Microcontroller 8051

What is the Vcc supply pin number for the microcontroller IC 8051?

• 21

• 30

• 9

• 40

What is the bit length of upcounting timers in 8051 micro controllers?

• 4 bits

• 8 bits

• 16 bits

• 32 bits

How many instructions available in the micro controller 8051 family instruction set

• 100

• 45

• 111

• 35

What is the full form of abbreviation SFR used in microcontrollers

• Serial Function Register

• Status function Register

• Special function Register

• System function Register

Which section in IC 8051 is running on external clock source?

• TIMER

• COUNTER

• REGISTER

• CLOCK

Which is the timer input frequency for the 8051 micro controller running at 12MHz

• 1MHz

• 2MHZ

• 3MHZ

• 4MHZ

Which pin is marked as the master reset (RST) function in microcontroller IC 8051?

• 9

• 20

• 30

• 40

Which circuits uses micro controller?

• computer

• multimeter

• microprocessor

• embedded systems

Which electronic component is connected in pin number 18 and 19 of the IC 8051 microcontroller?

• sensor

• crystal

• resistor

• zener diode

Which is developed to overcome the drawback of the microprocessor?

• JFET

• MOSFET

• IGBT

• Micro controller