kindaichinisan
Junior Member level 1
I have a DDR2 chip that has spec as DDR2-667 and data width = x8.
What does the 667 mean? 667MHz? for 1 date line or for the 8 data line?
if 1 data line = 667MHz, the data rate will be 667MBps
if 8 data line = 667MHz, the data rate will be 83.375MBps.
What is the clock input for the DDR2 chip? 667/2 = 333.5MHz?
For DDR1, the bus multiplier = 1
For DDR2, the bus multiplier = 2
For DDR3, the bus multiplier = 4
What does the bus multiplier mean? Can give example to the clock rate, data rate, etc.
Thanks.
What does the 667 mean? 667MHz? for 1 date line or for the 8 data line?
if 1 data line = 667MHz, the data rate will be 667MBps
if 8 data line = 667MHz, the data rate will be 83.375MBps.
What is the clock input for the DDR2 chip? 667/2 = 333.5MHz?
For DDR1, the bus multiplier = 1
For DDR2, the bus multiplier = 2
For DDR3, the bus multiplier = 4
What does the bus multiplier mean? Can give example to the clock rate, data rate, etc.
Thanks.