Datasheet

DS2148/DS21Q48
64 of 73
Table 10-2. AC Characteristics—Nonmultiplexed Parallel Port
(BIS1 = 0, BIS0 = 1)
(V
DD
= 5.0V ±5%, T
A
= -40°C to +85°C.) (See Figure 10-4, Figure 10-5, Figure 10-6, and
Figure 10-7.)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
Setup Time for A0 to A4, Valid
to CS Active
t1 0 ns
Setup Time for CS Active to
Either RD, WR, or DS Active
t2 0 ns
Delay Time From Either RD or
DS Active to Data Valid
t3 75 ns
Hold Time From Either RD,
WR, or DS Inactive to CS
Inactive
t4 0 ns
Hold Time From CS Inactive to
Data Bus tri-state
t5 5 20 ns
Wait Time From Either WR or
DS Active to Latch Data
t6 75 ns
Data Setup Time To Either WR
or DS Inactive
t7 10 ns
Data Hold Time From Either
WR or DS Inactive
t8 10 ns
Address Hold From Either WR
or DS Inactive
t9 10 ns