w942508bh Winbond Electronics Corp America, w942508bh Datasheet - Page 40

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

Timing Waveforms, continued
2 Bank Interleave Read Operation (CL = 2, BL = 2)
2 Bank Interleave Read Operation (CL = 2, BL = 4)
tCK = 100 MHz
CLK
CLK
CMD
CLK
CLK
CMD
DQ
DQS
DQ
DQS
ACTa/b
READAa/b : Read with Auto Pre.CMD of bank a/b
APa/b
ACTa/b
READAa/b : Read with Auto Pre.CMD of bank a/b
APa/b
ACTa
ACTa
: Auto Pre. of bank a/b
: Bank Act. CMD of bank a/b
: Auto Pre. of bank a/b
: Bank Act. CMD of bank a/b
t
t
RRD
RRD
t
t
ACTb
ACTb
RCD(a)
RCD(a)
t
t
RAS(a)
RAS(a)
READAa
t
t
RC(a)
RC(a)
READAa
- 40 -
t
t
CL(a)
RCD(b)
RCD(b)
Preamble
t
t
RAS(b)
RAS(b)
READAb
CL(a)
APa
APa
Preamble
Q0a
t
t
RC(b)
RC(b)
READAb
Q1a
t
CL(b)
t
RP(a)
RP(a)
Postamble
Q0a
Q2a
Q1a
Q3a
ACTa
CL(b)
ACTa
APb
APb
Q0b
Preamble
Q1b
t
t
t
RP(b)
t
RRD
RP(b)
RRD
Q0b
Q2b
W942508BH
Postamble
Postamble
Q1b
Q3b
ACTb
ACTb