MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your 8051 Microcontroller knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is the function of the SCLK pin in MAX1112? |
| A. | It is used to bring data in |
| B. | It is used to bring data out and send in the control byte, one at a time |
| C. | It is used to get output clock |
| D. | It is used to get serial output |
| Answer» C. It is used to get output clock | |
| 2. |
INTR, WR signal is an input/output signal pin? |
| A. | both are output |
| B. | both are input |
| C. | one is input and the other is output |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 3. |
8 input DAC has ________ |
| A. | 8 discrete voltage levels |
| B. | 64 discrete voltage levels |
| C. | 124 discrete voltage levels |
| D. | 256 discrete voltage levels |
| Answer» E. | |
| 4. |
In ADC0808/0809 IC which pin is used to select Step Size? |
| A. | Vref |
| B. | Vin |
| C. | Vref/2 & Vin |
| D. | None of the mentioned |
| Answer» B. Vin | |
| 5. |
While programming the ADC0808/0809 IC what steps are followed? |
| A. | select the analog channel, start the conversion, monitor the conversion, display the digital results |
| B. | select the analog channel, activate the ALE signal (L to H pulse), start the conversion, monitor the conversion, read the digital results |
| C. | select the analog channel, activate the ALE signal (H to L pulse), start the conversion, monitor the conversion, read the digital results |
| D. | select the channel, start the conversion, end the conversion |
| Answer» C. select the analog channel, activate the ALE signal (H to L pulse), start the conversion, monitor the conversion, read the digital results | |
| 6. |
What is the function of the WR pin? |
| A. | its active high input used to inform ADC0804 to the end of conversion |
| B. | its active low input used to inform ADC0804 to the end of conversion |
| C. | its active low input used to inform ADC0804 to the start of conversion |
| D. | its active high input used to inform ADC0804 to the start of conversion |
| Answer» D. its active high input used to inform ADC0804 to the start of conversion | |