Figure 21-16 PSRAM Bus Timing (Read/Write): Three-State Access
Figure 21-17 PSRAM Bus Timing (Refresh Cycle): Three-State Access
ø
A
23
to A
0
AS
CS
3
RD
(read)
D
15
to D
0
(read)
HWR
,
LWR
(write)
D
15
to D
0
(write)
RFSH
t
AD
T
2
T
3
t
RAD1
t
AS1
t
RSD
t
WSD
t
WDS2
t
RAD3
t
RP
t
RDH
t
SD
t
RDS
t
SD
T
1
ø
A
23
to A
0
AS
CS
3
,
HWR
,
LWR
,
RD
RFSH
T
2
T
3
T
1
t
RAD2
t
RAD3
700
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