HYB18M1G320BF Datasheet, PDF (26/62 Pages) Qimonda AG – DRAMs for Mobile Applications 1-Gbit x32 DDR Mobile-RAM

Data Sheet
HY[B/E]18M1G320BF
1-Gbit DDR Mobile-RAM
2.4.5.1 READ Burst Termination
Data from any READ burst may be truncated using the BURST TERMINATE command (see Figure 20), provided that Auto
Precharge was not activated. The BURST TERMINATE latency is equal to the CAS latency, i.e. the BURST TERMINATE
command should be issued x clock cycles after the READ command, where x equals the number of desired data element pairs.
This is shown in Figure 17.
FIGURE 17
Terminating a READ Burst
CK
CK
Command
Address
READ
BA,Col n
DQS
DQ
NOP
CL=2
BST
DO n
NOP
NOP
NOP
DQS
DQ
CL=3
DO n
DO n = Data Out from column n
BA, Col n = Bank A, Column n
Cases shown are bursts of 8 terminated after 4 data elements.
3 subsequent elements of Data Out appear in the programmed order following DO n
= Don't Care
Rev.1.00, 2007-03
26
02022006-J7N7-GYFP