Philips CEM3000B Service Manual page 42

1 Semiconductor
Single Bit Read-Write-Read Cycle (Same Page) @CAS
0 1 2 3
CLK
t
CC
CKE
CS
t
HI
RAS
t t
SI HI
CAS
t
t
SI
SI
ADDR Ra Ca
t
HI
BS BS
A11
A10 Ra
DQ
t
OLZ
WE
UDQM,
LDQM
Row Active
Read Command
t
CH
4 5 6 7 8
t
CL
High
t
SI
I
CCD
t
SI
Cb Cc
t
HI
BS BS
t
t HI
AC t
OHZ
Qa Db
t
SI
t t
OH HI
l
OWD
t
SI
Write Command
Read Command
CAS Latency= = = = 2, Burst Length=4 CAS CAS
9 10 11 12 13
BS
Qc
Precharge Command
FEDD56V16160F-02
MSM56V16160F
14 15 16 17 18 19
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