Which of the following modules of DDR SDRAM is designed to operate at 200 MHz using DDR- 400 chips?

The correct answer is D. PC-3200. DDR (Double Data Rate) SDRAM transfers data on both the rising and falling edges of the clock signal, effectively doubling the data rate. DDR-400 chips operate at a 200 MHz bus clock but achieve 400 MT/s (megatransfers per second). The 'PC' module naming reflects peak bandwidth…

Hardware

Question

Options

APC-1600
BPC-2100
CPC-2700
DPC-3200

How the community answered

(65 responses)

A
6% (4)
B
2% (1)
C
3% (2)
D
89% (58)

Explanation

DDR (Double Data Rate) SDRAM transfers data on both the rising and falling edges of the clock signal, effectively doubling the data rate. DDR-400 chips operate at a 200 MHz bus clock but achieve 400 MT/s (megatransfers per second). The 'PC' module naming reflects peak bandwidth in MB/s: PC-3200 delivers 3,200 MB/s (400 MT/s × 8 bytes = 3,200 MB/s), which corresponds exactly to DDR-400. For reference: PC-1600 = DDR-200 (100 MHz), PC-2100 = DDR-266 (133 MHz), PC-2700 = DDR-333 (166 MHz), and PC-3200 = DDR-400 (200 MHz).

Topics

#DDR SDRAM#PC-3200#memory speed#RAM modules

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