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Home ‣ Digital Electronics ‣ Memory and Storage See What Others Are Saying!
  • Question

  • The address space of a RAM memory can be expanded using a decoder and additional memory ICs. The output of the decoder should be connected to which input line of the memory?


  • Options
  • A. The most significant address inputs
  • B. The most significant data inputs
  • C. The read/write line
  • D. The chip enable

  • Correct Answer
  • The chip enable 

    • More questions

    • 1. If a typical PC uses a 20-bit address code, how much memory can the CPU address?

    • Options
    • A. 20 MB
    • B. 10 MB
    • C. 1 MB
    • D. 580 MB
      • Discuss
    • 2. Circuits that exhibit the property of memory normally revert to their original state when the input is removed.

    • Options
    • A. True
    • B. False
      • Discuss
    • 3. GAL is an acronym for ________.

    • Options
    • A. Generic Array Logic
    • B. General Array Logic
    • C. Giant Array Logic
    • D. Generic Analysis Logic
      • Discuss
    • 4. The output of a standard TTL NAND gate is used to pull an LED indicator LOW. The LED is in series with a 470-Ω resistor. What is the current in the circuit when the LED is on?

    • Options
    • A. 7.02 mA
    • B. 8.51 mA
    • C. 10.63 mA
    • D. 5.32 mA
      • Discuss
    • 5. What would be the output voltage of a 7814 voltage regulator?

    • Options
    • A. ?14 V dc
    • B. +14 V dc
    • C. ?8 V dc
    • D. +8 V dc
      • Discuss
    • 6. If the least significant bit (LSB) of a four-bit binary-weighted resistor D/A converter connects to a 200 Ω resistor, then the resistor needed for the next bit is 100 Ω.

    • Options
    • A. True
    • B. False
      • Discuss
    • 7. The output of this circuit is always ________.


    • Options
    • A. 1
    • B. 0 
    • C. A
    • D. A
      • Discuss
    • 8. DRAM chips can be combined for larger capacity and word sizes using the same methods as for other memory types.

    • Options
    • A. True
    • B. False
      • Discuss
    • 9. Flash A/D converters depend on an input clock pulse to perform each conversion.

    • Options
    • A. True
    • B. False
      • Discuss
    • 10. Electrical noise does not affect the transmission of binary information.

    • Options
    • A. True
    • B. False
      • Discuss

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