Rainbow Electronics DS31256 User Manual
Page 171
DS31256
171 of 181
AC CHARACTERISTICS: LOCAL BUS IN CONFIGURATION MODE (LMS = 1)
(V
DD
= 3.0V to 3.6V, T
A
= 0°C to +70°C.)
PARAMETER SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Setup Time for LA[15:0] Valid to LCS
Active
t1
0 ns
Setup Time for LCS Active to Either
LRD, LWR, or LDS Active
t2
0 ns
Delay Time from Either LRD or LDS
Active to LD[15:0] Valid
t3 (Note
12)
75 ns
Hold Time from Either LRD, LWR, or
LDS Inactive to LCS Inactive
t4
0 ns
Hold Time from Either LRD or LDS
Inactive to LD[15:0] Three-state
t5
5 20 ns
Wait Time from Either LWR or LDS
Active to Latch LD[15:0]
t6 (Note
13)
75 ns
LD[15:0] Setup Time to Either LWR or
LDS Inactive
t7
10 ns
LD[15:0] Hold Time from Either LWR
or LDS Inactive
t8
2 ns
LA[15:0] Hold from Either LWR, LRD,
or LDS Inactive
t9
5 ns
LRD, LWD, or LDS Inactive Time
t10 (Note
14)
65
ns
Note 12: Given value for 33MHz PCLK. Calculated as 1.5 x (PCLK Period) + 30ns
Note 13: Given value for 33MHz PCLK. Calculated as 2 x (PCLK Period) + 15ns
Note 14: Given value for 33MHz PCLK. Calculated as 2 x (PCLK Period) + 5ns