W9751G6KB WINBOND [Winbond], W9751G6KB Datasheet - Page 85

• Manufacturer Part Number: W9751G6KB
• Description: 8M ? 4 BANKS ? 16 BIT DDR2 SDRAM
• Manufacturer: WINBOND [Winbond]

10.31 Clock frequency change in precharge Power Down mode
CLK
CLK
CMD
CKE
ODT
T0
t
AOFD
t
RP
NOP
T1
Minimum 2 clocks
required before
changing frequency
t
IS
NOP
T2
T4
Frequency change
Occurs here
T
X
T
X+1
T
Y
- 85 -
Stable new clock
before power down exit
T
Y+1
t
IS
T
NOP
Y+2
Publication Release Date: Dec. 09, 2011
NOP
T
t
Y+3
XP
RESET
T
DLL
Y+4
W9751G6KB
200 Clocks
NOP
ODT is off during
DLL RESET
Valid
T
Revision A01
z
t
IH