錚?/div>
t
PHL
t
PLH
SYMBOL
CONDITIONS
R
L
= 3k鈩? C
L
= 1000pF,
one transmitter switching
R_IN to R_OUT, C
L
= 150pF
Normal operation (MAX3244E only)
Normal operation (MAX3244E only)
(Note 3)
C
L
= 150pF
to 1000pF
C
L
= 150pF
to 2500pF
MIN
250
0.15
0.15
200
200
100
50
V
CC
= 3.3V, T
A
= +25擄C,
R
L
= 3k鈩?to 7k鈩?
measured from +3V to -3V
or -3V to +3V
6
4
30
V/碌s
30
TYP
MAX
UNITS
kbps
碌s
ns
ns
ns
ns
Transition-Region Slew Rate
TIMING CHARACTERISTICS鈥擬AX3225E/MAX3227E/MAX3245E
(V
CC
= +3V to +5.5V, C1鈥揅4 = 0.1碌F, tested at 3.3V 鹵10%; C
L
= 0.047碌F, C2鈥揅4 = 0.33碌F, tested at 5.0V 鹵10%; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25擄C.)
PARAMETER
SYMBOL
CONDITIONS
R
L
= 3k鈩? C
L
= 1000pF,
one transmitter switching
Maximum Data Rate
V
CC
= 3.0V to 4.5V, R
L
= 3k鈩?
C
L
= 250pF, one transmitter switching
V
CC
= 4.5V to 5.5V, R
L
= 3k鈩?
C
L
= 1000pF, one transmitter switching
Receiver Propagation Delay
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Skew
Receiver Skew
Transition-Region Slew Rate
錚?/div>
t
PHL
- t
PLH
錚?/div>
錚?/div>
t
PHL
- t
PLH
錚?/div>
t
PHL
t
PLH
R_IN to R_OUT, C
L
= 150pF
Normal operation (MAX3245E only)
Normal operation (MAX3245E only)
(Note 3)
V
CC
= 3.3V, T
A
= +25擄C,
R
L
= 3k鈩?to 7k鈩? C
L
= 150pF to 1000pF,
measured from +3V to -3V or -3V to +3V
MIN
250
1000
1000
0.15
0.15
200
200
25
50
24
150
碌s
ns
ns
ns
ns
V/碌s
kbps
TYP
MAX
UNITS
Note 2:
A transmitter/receiver edge is defined as a transition through the transmitter/receiver input logic thresholds.
Note 3:
Transmitter skew is measured at the transmitter zero cross points.
4
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