GD75323
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS213A – JANUARY 1996 – REVISED JUNE 1999
RECEIVER SECTION
electrical characteristics over recommended operating conditions (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
1.75
1.55
0.75
0.5
MAX
2.3
UNIT
TYP
1.9
T
= 25°C
A
V
IT+
Positive-going input threshold voltage
Negative-going input threshold voltage
See Figure 5
See Figure 5
T
A
= 0°C to 70 °C
2.3
V
V
V
0.97
4
1.25
IT–
Input hysteresis voltage (V
High-level output voltage
Low-level output voltage
High-level input current
– V
)
IT–
hys
IT+
V
= 0.75 V
2.6
5
IH
Inputs open
V
V
I
I
= –0.5 mA
= 10 mA,
V
V
OH
OH
2.6
V = 3 V
I
0.2
0.45
8.3
OL
OL
V = 25 V,
See Figure 5
See Figure 5
See Figure 5
See Figure 5
3.6
0.43
I
I
IH
mA
V = 3 V,
I
V = –25 V,
–3.6
–8.3
–12
I
I
I
Low-level input current
mA
mA
IL
V = –3 V,
I
–0.43
Short-circuit output current
See Figure 4
–3.4
OS
†
All typical values are at T = 25°C, V
= 5 V, V
DD
= 9 V, and V = –9 V.
SS
A
CC
switching characteristics, V
= 5 V, V
= 12 V, V = –12 V, T = 25°C
CC
DD
SS
A
PARAMETER
TEST CONDITIONS
MIN
TYP
107
42
MAX
500
150
525
60
UNIT
ns
t
t
t
t
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Transition time, low- to high-level output
PLH
PHL
TLH
THL
ns
C
= 50 pF,
R = 5 kΩ,
L
L
See Figure 6
175
16
ns
Transition time, high- to low-level output
ns
PARAMETER MEASUREMENT INFORMATION
I
OS(L)
V
V
V
V
or GND
or GND
DD
V
DD
DD
V
CC
CC
–I
OS(H)
I
IH
SS
V
V
I
V
I
–I
IL
V
O
R
= 3 kΩ
L
I
V
SS
V
SS
Figure 1. Driver Test Circuit
for V , V , I , and I
Figure 2. Driver Test Circuit for I and I
IH
IL
OH OL OS(H)
OS(L
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
