8051 Connections - MCQs with Answers
8051 Connections - MCQs with Answers
Q1. Which value of disc capacitors is preferred or recommended especially when the quartz crystal is connected externally in an oscillator circuit of 8051 ?a. 10 pF
b. 20 pF
c. 30 pF
d. 40 pF
View Answer / Hide Answer Q2. Why are the resonators not preferred for an oscillator circuit 0f 8051?a. Because they do not avail for 12 MHz higher order frequencies
b. Because they are unstable as compared to quartz crystals
c. Because cost reduction due to its utility is almost negligible in comparison to total cost of microcontroller board
d. All of the above
View Answer / Hide Answer ANSWER: d. All of the above
Q3. Which version of MCS-51 requires the necessary connection of external clock source to XTAL2 in addition to the XTAL1 connectivity to ground level?a. HMOS
b. CHMOS
c. CMOS
d. All of the above
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