w942508bh Winbond Electronics Corp America, w942508bh Datasheet - Page 28

• Manufacturer Part Number: w942508bh
• Manufacturer: Winbond Electronics Corp America

Timing Waveforms, continued
Read Timing (Burst Length = 4)
CAS
CAS
Note: The correspondence of LDQS, UDQS to DQ. ( W942516AH)
Output
Output
(Data)
(Data)
DQS
DQS
CLK
latency=2
latency=2.5
CMD
ADD
CLK
LDQS
UDQS
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
RPE
Preamble
t
t
AC
LZ
- 28 -
t
DQSCK
t
DA0
QA0
DQSQ
t
t
AC
LZ
t
t
DQSCK
DQSCK
t
QA0
t
DA0
DA1
QA1
DQSQ
QH
t
DQSCK
t
t
t
DQSQ
QA1
DA1
QH
DA2
QA2
QH
t
Postamble
t
DQSCK
t
DQSQ
QA2
DA2
QH
t
t
DA3
QA3
t
RPST
DQSQ
HZ
W942508BH
t
Postamble
DQSCK
t
t
QA3
DA3
t
RPST
DQSQ
HZ
Hi-Z
Hi-Z
Hi-Z
Hi-Z