MAX3232
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
SLLS410E – JANUARY 2000 – REVISED DECEMBER 2001
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 3 and Figure 4)
†
PARAMETER
High-level output voltage
Low-level output voltage
TEST CONDITIONS
MIN
TYP
V –0.1 V
CC
MAX
UNIT
V
V
V
I
I
= –1 mA
V
–0.6 V
OH
OH
CC
= 1.6 mA
0.4
2.4
2.4
V
OL
OL
V
V
V
V
= 3.3 V
= 5 V
1.5
1.8
1.2
1.5
0.3
5
CC
CC
CC
CC
V
IT+
Positive-going input threshold voltage
Negative-going input threshold voltage
V
V
= 3.3 V
= 5 V
0.6
0.8
V
V
IT–
Input hysteresis (V
Input resistance
– V )
IT–
V
k
hys
IT+
r
V = ±3 V to ±25 V
3
7
i
I
†
All typical values are at V
= 3.3 V or V
= 5 V, and T = 25°C.
CC A
CC
NOTE 3: Test conditions are C1–C4 = 0.1 µF at V
= 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at V
= 5 V ± 0.5 V.
CC
CC
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 3 and Figure 3)
†
PARAMETER
TEST CONDITIONS
MIN TYP
MAX
UNIT
ns
t
t
t
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
300
300
300
PLH
PHL
sk(p)
C = 150 pF
L
ns
‡
Pulse skew
ns
†
‡
All typical values are at V
= 3.3 V or V
= 5 V, and T = 25°C.
A
CC
Pulse skew is defined as |t
CC
| of each channel of the same device.
– t
PLH PHL
NOTE 3: Test conditions are C1–C4 = 0.1 µF at V
CC
= 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at V
CC
= 5 V ± 0.5 V.
PARAMETER MEASUREMENT INFORMATION
3 V
0 V
Input
1.5 V
1.5 V
RS-232
Output
Generator
(see Note B)
50 Ω
t
t
C
THL
TLH
L
R
(see Note A)
L
V
OH
OL
3 V
–3 V
3 V
Output
TLH
–3 V
V
TEST CIRCUIT
VOLTAGE WAVEFORMS
6 V
or t
SR(tr)
t
THL
NOTES: A.
C includes probe and jig capacitance.
L
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, Z = 50 Ω, 50% duty cycle, t ≤ 10 ns, t ≤ 10 ns.
O
r
f
Figure 1. Driver Slew Rate
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
