Samsung S3C2451X User Manual page 747

S3C2451X RISC MICROPROCESSOR
(VDDi= 1.3V± 0.05V (400MHz), VDDi= TBD V± 0.05V (533MHz), TA = -40 to 85°C, VDD_SRAM = 1.8V ± 0.1V)
Parameter
SMC Chip Select Delay
SMC Output Enable Delay
SMC Write Enable Delay
SMC Address Delay
SMC Data Output Delay
SMC nWAIT setup time
SMC nWAIT hold time
(VDDi= 1.3V± 0.05V (400MHz), VDDi= TBD V± 0.05V (533MHz), TA = -40 to 85°C, VDD_SRAM = 1.8V ± 0.1V)
Parameter
NFCON Chip Enable delay
NFCON CLE delay
NFCON ALE delay
NFCON Write Enable delay
NFCON Read Enable delay
NFCON Write Data delay
NFCON Read Data Setup requirement time
NFCON Read Data Hold requirement time
Table 29-13. SMC Timing Constants
Symbol
tCSD bank0
bank1
bank2
bank3
bank4
bank5
tOED
tWED
tADDRD
tDOD
tWS
tWH
Table 29-14. NFCON Bus Timing Constants
Preliminary product information describe products that are in development,
for which full characterization data and associated errata are not yet available.
Specifications and information herein are subject to change without notice.
Min Typ
2.4
2.4
2.5
2.5
2.3
2.4
2.1
2.2
2.5
3.1
2.3
0
Symbol Min
t
-
CED
t
-
CLED
t -
ALED
t
-
WED
t
-
RED
t
-
WDD
t
1.00
RDS
t
0.20
RDH
ELECTRICAL DATA
Max
– 7.3
7.2
7.6
7.2
6.9
7.1
– 6.3
– 6.3
– 7.3
– 8.9
– 5
– 0
Max Unit
7.83
8.96
8.38
9.42
10.03
8.78
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
29-23