Datasheet

DS21Q50
78 of 87
21.2 Nonmultiplexed Bus AC Characteristics
AC CHARACTERISTICS—NONMULTIPLEXED PARALLEL PORT
(V
DD
= 3.3V ± 5%, T
A
= 0°C to +70°C for DS21Q50L; V
DD
= 3.3V ± 5%, T
A
= -40°C to +85°C for DS21Q50N.)
PARAMETER SYMBOL MIN TYP MAX UNITS
Setup Time for A0 to A7, 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 140 ns
Hold Time from Either RD, WR, or DS Inactive to
CS Inactive
t4 0 ns
Hold Time from CS Inactive to Data Bus Three-
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