MAX3232
3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER
WITH
±15
kV ESD PROTECTION
SLLS410I − JANUARY 2000 − REVISED JANUARY 2004
RECEIVER SECTION
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 4)
PARAMETER
VOH
VOL
VIT+
VIT−
Vhys
ri
High-level output voltage
Low-level output voltage
Positive-going input threshold voltage
Negative-going input threshold voltage
Input hysteresis (VIT+ − VIT−)
Input resistance
TEST CONDITIONS
IOH = −1 mA
IOL = 1.6 mA
VCC = 3.3 V
VCC = 5 V
VCC = 3.3 V
VCC = 5 V
0.6
0.8
MIN
VCC−0.6 V
TYP†
VCC−0.1 V
0.4
1.5
1.8
1.2
1.5
0.3
7
V
V
kW
2.4
2.4
V
MAX
UNIT
V
V
VI =
±3
V to
±25
V
3
5
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
NOTE 4: Test conditions are C1−C4 = 0.1
µF
at VCC = 3.3 V
±
0.3 V; C1 = 0.047
µF,
C2−C4 = 0.33
µF
at VCC = 5 V
±
0.5 V.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Note 4 and Figure 3)
PARAMETER
tPLH
tPHL
tsk(p)
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Pulse skew‡
CL= 150 pF
TEST CONDITIONS
MIN
TYP†
300
300
300
MAX
UNIT
ns
ns
ns
† All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
‡ Pulse skew is defined as |tPLH − tPHL| of each channel of the same device.
NOTE 4: Test conditions are C1−C4 = 0.1
µF
at VCC = 3.3 V
±
0.3 V; C1 = 0.047
µF,
C2−C4 = 0.33
µF
at VCC = 5 V
±
0.5 V.
PARAMETER MEASUREMENT INFORMATION
Input
Generator
(see Note B)
RS-232
Output
50
Ω
RL
CL
(see Note A)
Output
TEST CIRCUIT
tTHL
3V
−3 V
SR(tr)
+
6V
or t
VOLTAGE WAVEFORMS
TLH
3V
−3 V
3V
1.5 V
1.5 V
0V
tTLH
VOH
VOL
t
THL
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 250 kbit/s, ZO = 50
Ω,
50% duty cycle, tr
≤
10 ns, tf
≤
10 ns.
Figure 1. Driver Slew Rate
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
5
TI [ TEXAS INSTRUMENTS ]
