GD65232, GD75232
MULTIPLE RS 232 DRIVERS AND RECEIVERS
SLLS206J − MAY 1995 − REVISED NOVEMBER 2004
TYPICAL CHARACTERISTICS
INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
2.4
2.2
V
IT
− Input Threshold Voltage − V
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0
10
20
30
40
50
60
70
TA − Free-Air Temperature −
°C
VIT−
V
IT
− Input Threshold Voltage − V
VIT+
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
2
3
4
5
6
7
8
9
10
VCC − Supply Voltage − V
VIT−
INPUT THRESHOLD VOLTAGE
vs
SUPPLY VOLTAGE
VIT+
Figure 11
Figure 12
NOISE REJECTION
6
VCC = 5 V
TA = 25°C
See Note A
5
MAXIMUM SUPPLY VOLTAGE
vs
FREE-AIR TEMPERATURE
16
14
V
DD
− Maximum Supply Voltage − V
12
10
8
6
4
2
0
4
Amplitude − V
3
2
CC = 12 pF
CC = 100 pF
1
0
10
40
NOTE A: This figure shows the maximum amplitude of a
positive-going pulse that, starting from 0 V, does not cause
a change of the output level.
0
Figure 13
10
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
ÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎ
100
400 1000
tw − Pulse Duration − ns
ÁÁÁÁ Î
ÎÎÎÎ
ÁÁÁÁ Î
ÎÎÎÎ
ÎÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
ÎÎÎÎ
CC = 300 pF
CC = 500 pF
4000 10000
ÎÎÎÎÎ
ÎÎÎÎ
ÁÁÁÁ
RL
≥
3 kΩ (from each output to GND)
10
20
30
40
50
60
70
TA − Free-Air Temperature −
°C
Figure 14
TI [ TEXAS INSTRUMENTS ]
