The 8051 Microcontroller Questions and Answers

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Showing 10 of 59 questions
Q51
A Celsius thermometer is an application for the 8051 microcontroller.
  • A TRUE
  • B FALSE
Answer: Option A
Q52
The RST pin requires a HIGH to reset the 8051 microcontroller.
  • A TRUE
  • B FALSE
Answer: Option A
Q53
A microcontroller is called a computer on a chip.
  • A TRUE
  • B FALSE
Answer: Option A
Q54
In an 8051 program DA A adjusts the value in the accumulator resulting from an addition into two BCDs.
  • A TRUE
  • B FALSE
Answer: Option A
Q55
Different instruction sets must make up for the various members of the 8051 family.
  • A TRUE
  • B FALSE
Answer: Option B
Q56
The ADC 0804 is an analog-to-digital converter that provides 8-bit output resolution that can be directly interfaced to a microcontroller.
  • A TRUE
  • B FALSE
Answer: Option A
Q57
Writing counter/loop programs is much more difficult with the introduction of the DJNA and the CJNE instructions.
  • A TRUE
  • B FALSE
Answer: Option B
Q58
The 8051 is a 40-pin IC. Twenty-two pins are needed for the four I/O ports.
  • A TRUE
  • B FALSE
Answer: Option B
Q59
Up to 65K of code memory and 65K of data memory can be added to any of the 8051 family members.
  • A TRUE
  • B FALSE
Answer: Option B

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