MAX202
5 V DUAL RS 232 LINE DRIVER/RECEIVER
WITH
±15
kV ESD PROTECTION
SLLS576D − JULY 2003 − 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
VI =
±3
V to
±25
V
TEST CONDITIONS
IOH = −1 mA
IOL = 1.6 mA
VCC = 5 V,
VCC = 5 V,
TA = 25°C
TA = 25°C
MIN
3.5V
TYP†
VCC−0.4 V
0.4
1.7
0.8
0.2
3
1.2
0.5
5
1
7
2.4
MAX
UNIT
V
V
V
V
V
kW
† All typical values are at VCC = 5 V, and TA = 25°C.
NOTE 4: Test conditions are C1−C4 = 0.1
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 (R)
tPHL (R)
tsk(p)
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Pulse skew‡
TEST CONDITIONS
CL= 150 pF
CL= 150 pF
MIN
TYP†
0.5
0.5
300
MAX
10
10
UNIT
µs
µs
ns
† All typical values are at 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 = 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
tPHL (D)
3V
−3 V
SR(tr)
+
6V
or t
VOLTAGE WAVEFORMS
PLH (D)
3V
−3 V
3V
1.5 V
1.5 V
0V
tPLH (D)
VOH
VOL
t
PHL (D)
NOTES: A. CL includes probe and jig capacitance.
B. The pulse generator has the following characteristics: PRR = 120 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 ]
