Datasheet

www.ti.com
RECEIVER 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 I
OH
= –1 mA V
CC
– 0.6 V
CC
– 0.1 V
V
OL
Low-level output voltage I
OL
= 1.6 mA 0.4 V
V
CC
= 3.3 V 1.5 2.4
V
IT+
Positive-going input threshold voltage V
V
CC
= 5 V 1.8 2.4
V
CC
= 3.3 V 0.6 1.2
V
IT–
Negative-going input threshold voltage V
V
CC
= 5 V 0.8 1.5
V
hys
Input hysteresis (V
IT+
– V
IT–
) 0.3 V
I
OZ
Output leakage current (except ROUT1B) FORCEOFF = 0 V ± 0.05 ± 10 µ A
r
i
Input resistance V
I
= ± 3 V to ± 25 V 3 5 7 k Ω
(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.
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)
PARAMETER TEST CONDITIONS TYP
(2)
UNIT
t
PLH
Propagation delay time, low- to high-level output C
L
= 150 pF, See Figure 3 150 ns
t
PHL
Propagation delay time, high- to low-level output C
L
= 150 pF, See Figure 3 150 ns
t
en
Output enable time C
L
= 150 pF, R
L
= 3 k Ω , See Figure 4 200 ns
t
dis
Output disable time C
L
= 150 pF, R
L
= 3 k Ω , See Figure 4 200 ns
t
sk(p)
Pulse skew
(3)
See Figure 3 50 ns
(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
RIN IEC 61000-4-2, Air-Gap Discharge ± 15 kV
IEC 61000-4-2, Contact Discharge ± 8
7
Submit Documentation Feedback