2 nonmultiplexed bus ac characteristics, 0 ° c to +70 ° c; v – Maxim Integrated DS21Q55 User Manual
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34.2 Nonmultiplexed Bus AC Characteristics
AC CHARACTERISTICS–NONMULTIPLEXED PARALLEL PORT (MUX = 0)
(0
°
C to +70
°
C; V
DD
= 3.3V
±
5% for DS21Q55;
-40
°
C to +85
°
C; V
DD
= 3.3V
±
5% for DS21Q55N)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
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
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 3-state
t5
5
20
ns
Wait Time from Either WR* or
DS* Activate 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
See Figures 37-4 to 37-7