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SSD1809
SOLOMON
9
REV 1.3
03/02
RD (Read Cycle)
D/C
D
0 -D7 (Write Cycle)
D
0-D7 (Read Cycle)
CE
t
AS
t
cycle
t
EH
tDS
t
DD
tDHW
tDHR
tAH
WR (Write Cycle)
Symbol
Parameter
Min
Typ
Max
Unit
tcycle
Enable Cycle Time
1000
-
-
ns
tEH
Enable Pulse Width
-
500
-
ns
tAS
Address Setup Time
-
200
-
ns
tAH
Address Hold Time
-
250
-
ns
tDS
Data Setup Time for Write Cycle
-
350
-
ns
tDHW
Data Hold Time for Write Cycle
-
250
-
ns
tDD
Data Delay Time for Read Cycle
-
350
-
ns
tDHR
Data Hold Time for Read Cycle
-
100
-
ns
Table 2 : Timing Characteristics for 80-Series Parallel Interface (TA=-30 to 85
oC, DV
DD=2.2 to 3.5V, VSS=0V)
Figure 3 : Timing Characteristics for 80-Series Parallel Interface
Note: In Read Cycle, the WR pin should be High. In Write Cycle, the RD pin should be High.
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