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DRIVER SECTION
Switching Characteristics
(1)
ESD Protection
MAX3238E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ± 15-kV ESD (HBM) PROTECTION
SLLS710A – FEBRUARY 2006 – REVISED APRIL 2006
xxx
Electrical Characteristics
(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6 )
PARAMETER TEST CONDITIONS MIN TYP
(2)
MAX UNIT
V
OH
High-level output voltage All DOUT at R
L
= 3 k Ω to GND 5 5.4 V
V
OL
Low-level output voltage All DOUT at R
L
= 3 k Ω to GND –5 –5.4 V
I
IH
High-level input current V
I
= V
CC
± 0.01 ± 1 µ A
I
IL
Low-level input current V
I
at GND ± 0.01 ± 1 µ A
V
CC
= 3.6 V, V
O
= 0 V ± 35 ± 60
I
OS
Short-circuit output current
(3)
mA
V
CC
= 5.5 V, V
O
= 0 V ± 40 ± 100
r
o
Output resistance V
CC
, V+, and V– = 0 V, V
O
= ± 2 V 300 10M Ω
V
O
= ± 12 V, V
CC
= 3 V to 3.6 V ± 25
I
OZ
Output leakage current FORCEOFF = GND µ A
V
O
= ± 10 V, V
CC
= 4.5 V to 5.5 V ± 25
(1) Testing supply conditions are C1–C4 = 0.1 µ F at V
CC
= 3.3 V ± 0.15 V; C1–C4 = 0.22 µ F at V
CC
= 3.3 V ± 0.3 V; and C1 = 0.047 µ F
and C2–C4 = 0.33 µ F at V
CC
= 5 V ± 0.5 V.
(2) All typical values are at V
CC
= 3.3 V or V
CC
= 5 V, and T
A
= 25 ° C.
(3) Short-circuit durations should be controlled to prevent exceeding the device absolute power dissipation ratings, and not more than one
output should be shorted at a time.
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6 )
PARAMETER TEST CONDITIONS MIN TYP
(2)
MAX UNIT
C
L
= 1000 pF, R
L
= 3 k Ω ,
Maximum data rate 250 400 kbit/s
One DOUT switching, See Figure 1
C
L
= 150 pF to 2500 pF, R
L
= 3 k Ω to 7 k Ω ,
t
sk(p)
Pulse skew
(3)
100 ns
See Figure 2
C
L
= 150 pF to 1000 pF 6 30
Slew rate, transition region V
CC
= 3.3 V,
SR(tr) V/ µ s
(see Figure 1) R
L
= 3 k Ω to 7 k Ω
C
L
= 150 pF to 2500 pF 4 30
(1) Testing supply conditions are C1–C4 = 0.1 µ F at V
CC
= 3.3 V ± 0.15 V; C1–C4 = 0.22 µ F at V
CC
= 3.3 V ± 0.3 V; and C1 = 0.047 µ F
and C2–C4 = 0.33 µ F at V
CC
= 5 V ± 0.5 V.
(2) All typical values are at V
CC
= 3.3 V or V
CC
= 5 V, and T
A
= 25 ° C.
(3) Pulse skew is defined as |t
PLH
– t
PHL
| of each channel of the same device.
PARAMETER TEST CONDITIONS TYP UNIT
HBM ± 15
DOUT IEC 61000-4-2, Air-Gap Discharge ± 15 kV
IEC 61000-4-2, Contact Discharge ± 8
6
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