What of the following statements regarding Double Data Rate SDRAM (DDR-SDRAM) is FALSE?
A.
Double Data Rate 2 SDRAM (DDR-2 SDRAM) has doubles the data transfer rate of Double Data Rate SDRAM (DDR SDRAM) because it can transfer data on both the leading and falling edges of each clock cycle.
B.
Double Data Rate 2 SDRAM (DDR-2 SDRAM) has a larger maximum bandwidth that Double Data Rate SDRAM (DDR SDRAM).
C.
Double Data Rate 2 SDRAM (DDR-2 SDRAM) consumers less power than Double Data Rate SDRAM (DDR SDRAM).
D.
Double Data Rate 2 SDRAM (DDR-2 SDRAM) is not compatible with Double Data Rate SDRAM (DDR SDRAM).
Explanation:
DDR SDRAM as well as DDR-2 SDRAM can transfer data on both the leading and falling edges of each clock cycle, which doubles the data transfer rate of traditional Single Data Rate SDRAM (SDR SDRAM).Incorrect
Answers:
B: DDR-2 SDRAM has a larger maximum bandwidth that DDR SDRAM.
C: DDR-2 SDRAM consumers less power than DDR SDRAM because it uses less voltage than DDR SDRAM D: DDR-2 SDRAM is not compatible with DDR SDRAM because DDR-2 SDRAM uses 240 pins per module while DDR SDRAM uses 184 pins.
References:
Charles J. Brooks, Server+ Certification Exam Cram 2 (Exam SK0-002), QUE Publishing, Indianapolis, 2006, pp. 89-95.