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- Question
The access time (tacc) of a memory IC is governed by the IC's:
Options- A. internal address buffer
- B. internal address decoder
- C. volatility
- D. internal address decoder and volatility
- Correct Answer
- internal address decoder
- 1. Which of the following memories uses a MOSFET and a capacitor as its memory cell?
Options- A. SRAM
- B. DRAM
- C. ROM
- D. DROM Discuss
- 2. What is meant by parallel-loading the register?
Options- A. Shifting the data in all flip-flops simultaneously
- B. Loading data in two of the flip-flops
- C. Loading data in all four flip-flops at the same time
- D. Momentarily disabling the synchronous SET and RESET inputs Discuss
- 3. Which type of device may be used to interface a parallel data format with external equipment's serial format?
Options- A. key matrix
- B. UART
- C. memory chip
- D. serial-in, parallel-out Discuss
- 4. Synchronous counters eliminate the delay problems encountered with asynchronous (ripple) counters because the:
Options- A. input clock pulses are applied only to the first and last stages
- B. input clock pulses are applied only to the last stage
- C. input clock pulses are not used to activate any of the counter stages
- D. input clock pulses are applied simultaneously to each stage Discuss
- 5. What is a shift register that will accept a parallel input and can shift data left or right called?
Options- A. tri-state
- B. end around
- C. bidirectional universal
- D. conversion Discuss
- 6. What is the principal advantage of using address multiplexing with DRAM memory?
Options- A. reduced memory access time
- B. reduced requirement for constant refreshing of the memory contents
- C. reduced pin count and decrease in package size
- D. no requirement for a chip-select input line, thereby reducing the pin count Discuss
- 7. Advantage(s) of an EEPROM over an EPROM is (are):
Options- A. the EPROM can be erased with ultraviolet light in much less time than an EEPROM
- B. the EEPROM can be erased and reprogrammed without removal from the circuit
- C. the EEPROM has the ability to erase and reprogram individual words
- D. the EEPROM can erase and reprogram individual words without removal from the circuit Discuss
- 8. Which of the following best describes nonvolatile memory?
Options- A. memory that retains stored information when electrical power is removed
- B. memory that loses stored information when electrical power is removed
- C. magnetic memory
- D. nonmagnetic memory Discuss
- 9. Select the best description of read-only memory (ROM).
Options- A. nonvolatile, used to store information that changes during system operation
- B. nonvolatile, used to store information that does not change during system operation
- C. volatile, used to store information that changes during system operation
- D. volatile, used to store information that does not change during system operation Discuss
- 10. A computerized self-diagnostic for a ROM test uses:
Options- A. the check-sum method
- B. a ROM listing
- C. ROM comparisons
- D. a checkerboard test Discuss
Semiconductor Memory problems
Search Results
Correct Answer: DRAM
Correct Answer: Loading data in all four flip-flops at the same time
Correct Answer: UART
Correct Answer: input clock pulses are applied simultaneously to each stage
Correct Answer: bidirectional universal
Correct Answer: reduced pin count and decrease in package size
Correct Answer: the EEPROM can erase and reprogram individual words without removal from the circuit
Correct Answer: memory that retains stored information when electrical power is removed
Correct Answer: nonvolatile, used to store information that does not change during system operation
Correct Answer: the check-sum method
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