Preliminary
S3C2451X RISC MICROPROCESSOR
ELECTRICAL DATA
29-23
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.
Table 29-13. SMC Timing Constants
(VDDi= 1.3V
±
0.05V (400MHz), VDDi= TBD V
±
0.05V (533MHz), TA = -40 to 85
°
C, VDD_SRAM = 1.8V
±
0.1V)
Parameter Symbol
Min
Typ
Max
Unit
bank0 2.4
–
7.3
ns
bank1
2.4 7.2
bank2
2.5 7.6
bank3
2.5 7.2
bank4
2.3 6.9
SMC Chip Select Delay
tCSD
bank5
2.4 7.1
SMC Output Enable Delay
tOED
2.1
–
6.3
ns
SMC Write Enable Delay
tWED
2.2
–
6.3
ns
SMC Address Delay
tADDRD
2.5
–
7.3
ns
SMC Data Output Delay
tDOD
3.1
–
8.9
ns
SMC nWAIT setup time
tWS
2.3
–
5
ns
SMC nWAIT hold time
tWH
0
–
0
ns
Table 29-14. NFCON Bus Timing Constants
(VDDi= 1.3V
±
0.05V (400MHz), VDDi= TBD V
±
0.05V (533MHz), TA = -40 to 85
°
C, VDD_SRAM = 1.8V
±
0.1V)
Parameter Symbol
Min
Max
Unit
NFCON Chip Enable delay
t
CED
- 7.83 ns
NFCON CLE delay
t
CLED
- 8.96 ns
NFCON ALE delay
t
ALED
- 8.38 ns
NFCON Write Enable delay
t
WED
- 9.42 ns
NFCON Read Enable delay
t
RED
- 10.03 ns
NFCON Write Data delay
t
WDD
- 8.78 ns
NFCON Read Data Setup requirement time
t
RDS
1.00 - ns
NFCON Read Data Hold requirement time
t
RDH
0.20 - ns