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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
High-level output voltage
Low-level output voltage
TEST CONDITIONS
= −1 mA
MIN
−0.6V
TYP
V −0.1 V
CC
MAX
UNIT
V
V
V
I
I
V
CC
OH
OH
= 1.6 mA
0.4
2.4
2.4
V
OL
OL
V
V
V
V
= 3.3 V
= 5 V
1.5
CC
CC
CC
CC
V
IT+
Positive-going input threshold voltage
Negative-going input threshold voltage
V
V
1.8
1.2
1.5
0.3
5
= 3.3 V
= 5 V
0.6
0.8
V
V
IT−
Input hysteresis (V
Input resistance
− V
)
V
hys
IT+
IT−
r
V = 3 V to 25 V
3
7
kW
i
I
†
All typical values are at V
CC
= 3.3 V or V = 5 V, and T = 25°C.
CC A
NOTE 4: 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 4 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
Pulse skew is defined as |t
= 3.3 V or V = 5 V, and T = 25°C.
CC A
CC
− t
| of each channel of the same device.
PLH PHL
= 3.3 V 0.3 V; C1 = 0.047 µF, C2−C4 = 0.33 µF at V
NOTE 4: Test conditions are C1−C4 = 0.1 µF at V
CC
= 5 V 0.5 V.
CC
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 ]
