PreLIMINArY INforMAtIoN L9D125G80BG4
2.5 Gb, DDR - SDRAM Integrated Module (IMOD)
REGISTER DEFINITION
Fig u r e 2 - ca s e la t e n c y
T0
T1
T2
T2n
T3
T3n
CK#
CK
Comman d
READ
NOP
NOP
NOP
CL = 2
DQS
DQ
T0
T1
T2
T2n
T3
T3n
CK#
CK
Comman d
READ
NOP
NOP
NOP
CL = 2.5
DQS
DQ
T0
T1
T2
T3
T3n
CK#
CK
Comman d
READ
NOP
NOP
NOP
CL = 3
DQS
DQ
Transitioning Data
t
Don’t Care
Note:
BL = 4 in the cases shown; shown with nominal AC, tDQSCK, andtDQSQ.
LOGIC Devices Incorporated
www.logicdevices.com
High Performance, Integrated Memory Module Product
10
Feb 2, 2009 LDS-L9D125G80BG4-C