w9425g6eh Winbond Electronics Corp America, w9425g6eh Datasheet - Page 36

• Manufacturer Part Number: w9425g6eh
• Description: 4 M ? 4 Banks ? 16 Bits Ddr Sdram
• Manufacturer: Winbond Electronics Corp America

11.3 Read Timing (Burst Length = 4)
Notes: The correspondence of LDQS, UDQS to DQ. (W9425G6EH)
CAS Latency = 2
CAS Latency = 3
Output
Output
(Data)
(Data)
DQS
DQS
CLK
CMD
ADD
UDQS
CLK
LDQS
t
t
IS
IS
READ
Col
DQ8~15
DQ0~7
t
t
IH
IH
Hi-Z
Hi-Z
Hi-Z
Hi-Z
t
CH
t
CL
t
RPRE
Preamble
t
CK
t
t
AC
LZ
- 36 -
t
DQSCK
t
t
QA0
DA0
RPRE
DQSQ
Preamble
t
DQSCK
t
QA1
DA1
QH
t
t
AC
LZ
t
DQSCK
t
DQSQ
t
QA0
t
DA0
QA2
DA2
QH
DQSQ
Publication Release Date:May 07, 2008
t
Postamble
DQSCK
t
QA1
DA1
t
t
QA3
DA3
QH
t
RPST
DQSQ
HZ
t
DQSCK
t
t
DQSQ
QA2
W9425G6EH
DA2
QH
t
Postamble
DQSCK
t
t
QA3
DA3
t
RPST
DQSQ
HZ
Revision A05
Hi-Z
Hi-Z
Hi-Z
Hi-Z