W9425G6JH_13 Datasheet, PDF (35/52 Pages) Winbond – 4 M x 4 BANKS x 16 BITS DDR SDRAM

W9425G6JH
12.3 Read Timing (Burst Length = 4)
CLK
tCH
tCL
tCK
CLK
CMD
tIS tIH
READ
ADD
tIS tIH
Col
CAS Latency = 2
Hi-Z
DQS
Output
Hi-Z
(Data)
CAS Latency = 3
Hi-Z
DQS
Output
Hi-Z
(Data)
tRPRE
tDQSCK
tDQSCK
tDQSCK
tRPST
Preamble
tDQSQ
QDA0
tAC
tLZ
tRPRE
tQH
Postamble
tQH
tDQSQ
tDQSQ
QDA1
QDA2
tDQSCK
QDA3
tHZ
tDQSCK
Preamble
tDQSQ
QDA0
tAC
tLZ
tQH
QDA1
tQH
tDQSQ
QDA2
tDQSCK
tRPST
Postamble
tDQSQ
QDA3
tHZ
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Notes: The correspondence of LDQS, UDQS to DQ. (W9425G6JH)
LDQS
UDQS
DQ0~7
DQ8~15
- 35 -
Publication Release Date: Aug. 27, 2013
Revision A03