SL75232
System Logic
Semiconductor
SLS
Line Driver / Receiver
Description
The SL75232N, SL75232D are monolithic device
containing 3 independent drives and 5 receivers. These are
designed to interface between date terminal equipment and
date communication equipment as designed by EIA-232-D.
Features
Meets standard EIA-232-D (Revision of RS-232-C)
Drivers
- Current Limited Output 10 mA Typical
- Power-off Output Impedance 300
Min
- Slew Rate Control by Load Capacitor
- Flexible Supply Voltage Range
- Input Compatible with Most TTL and DTL Circuits
Receivers
- Input Resistance 3 k
to 7 k
- Input Signal Range
30 V
- Built-in Input Hysteresis (Double Threshold)
20 DIP/SO20: S-001AD (SL75232N) / S-013A
(SL75232D)
Pin Description
Name
Pin No
Function
Name
Pin No
Function
V
CC+
1
Driver Section Supply +
V
CC-
10
Driver Section Supply -
DA1
16
DY1
5
DA2
15
DY2
6
Driver Output
DA3
13
Driver Input
DY3
8
V
CC
20
Receiver Section Supply
GND
11
Ground
RA1
2
RY1
19
RA2
3
RY2
18
RA3
4
Receiver Input
RY3
17
Receiver Output
RA4
7
RY4
14
RA5
9
RY5
12
V
C C -
R A 5
D Y 3
R A 4
D Y 2
D Y 1
R A 3
R A 2
R A 1
V
C C +
1 0
9
8
7
6
5
4
3
2
1
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
G N D
R Y 5
D A 3
R Y 4
D A 2
D A 1
R Y 3
R Y 2
R Y 1
V
C C
Block Diagram
IL75232N, IL75232D
SL75232
System Logic
Semiconductor
SLS
Absolute Maximum Ratings
Symbol
Parameter
Rating
Unit
V
CC+
Supply Voltage
15
V
V
CC-
Supply Voltage
-15
V
V
CC
Supply Voltage
10
V
VI (Driver)
Input Voltage
-15
+7
V
VI (Reciver)
Input Voltage
30
V
VO (Driver)
Output Voltage
-15
+15
V
PT
Continuous Power Dissipation (Below 25
o
C)
1.0
W
T
STG
Storage Temperature
-65
+175
o
C
Top
Operating Temperature
0
+75
o
C
Schematic
V
CC-
300
70
6.2
8.2
70
7
10
3.6
V
CC+
DA
DY
DRIVER
RESEIVER
10
2
4
2
5
9
V
CC
DA
DY
SL75232
System Logic
Semiconductor
SLS
Electrical Characteristics
Supply Current
V
CC
= 5V, T
A
= 25
O
C
Symbol
Parameter
Test Conditions
Min
Max
Unit
I
CC+
Supply Current
V
CC+
= 9 V
V
IN
= 1.9V
15
mA
from V
CC+
No Load
V
IN
= 0.8V
4.5
V
CC+
= 12 V
V
IN
= 1.9V
19
No Load
V
IN
= 0.8V
5.5
V
CC+
= 15 V
V
IN
= 1.9V
25
No Load
V
IN
= 0.8V
9
I
CC-
Supply Current
V
CC-
= -9 V
V
IN
= 1.9V
-15
mA
from V
CC-
No Load
V
IN
= 0.8V
-3.2
V
CC-
= -12 V
V
IN
= 1.9V
-19
No Load
V
IN
= 0.8V
-3.2
V
CC-
= -15 V
V
IN
= 1.9V
-25
No Load
V
IN
= 0.8V
-3.2
I
CC
Supply Current
V
CC
= 5 V
V
IN
= 5.0V
30
mA
from V
CC
Driver Section
Symbol
Parameter
Test Conditions
Min
Max
Unit
V
IH
High Level
V
CC+
= 9 V
1.9
V
Input Voltage
V
CC-
= -9 V
V
IL
Low Level
0.8
V
Input Voltage
V
OH
High Level
V
IL
= 0.8V
V
CC+
= 9 V
6
V
Output Voltage
RL = 3 k
V
CC-
= -9 V
V
CC+
= 13.2 V
9
V
CC-
= -13.2
V
V
OL
Low Level
V
IH
= 1.9V
V
CC+
= 9 V
-6
V
Output Voltage
RL = 3 k
V
CC-
= -9 V
V
CC+
= 13.2 V
-9
V
CC-
= -13.2
V
I
IH
High Level
V
I
= 5V
10
A
Input Current
I
IL
Low Level
V
I
= 0
-1.6
mA
Input Current
I
OS(H)
Short Circuit
V
I
= 0.8V
-6
-12
mA
Output Current
V
O
= 0
at High Level
I
OS(L)
Short Circuit
V
I
= 1.9V
6
12
mA
Output Current
V
O
= 0
at Low Level
R
O
Output Resistance, V
CC+
= 0, V
CC-
= 0
300
SL75232
System Logic
Semiconductor
SLS
Power Off
V
O
= -2V to 2V
Driver Switching Characteristic
V
CC+
= 9V, V
CC-
= -9V T
A
= 25
O
C
Symbol
Parameter
Test Conditions
Min
Max
Unit
t
PLH
Propagation Delay Time,
RL = 3 k
500
ns
Low-To-High-Level Output
CL = 15
F
t
PHL
Propagation Delay Time,
175
ns
High -To- Low -Level Output
See Figure 1
t
TLH
Transition Time,
100
ns
Low-To-High-Level Output *
t
THL
Transition Time,
75
ns
High -To- Low -Level Output*
t
TLH
Transition Time,
RL = 3 k
to 7 k
2.5
s
Low-To-High-Level Output**
CL = 2500
F
(tip)
t
THL
Transition Time,
3.0
s
High-To-Low -Level Output**
See Figure 1
(tip)
*- Measured between 10 % and 90 % Points of Output Waveform
** -
Measured between +3V and -3V Points on the Output Waveform (EIA-232-D Condition)
Receiver Section
Symbol
Parameter
Test Conditions
Min
Max
Unit
VT+
Positive-Going
1.75
2.25
V
Threshold Voltage
VT-
Negative-Going
0.75
1.25
V
Threshold Voltage
V
OH
High Level Output
V
I
= 0.75V, I
OL
=-0.5mA
2.6
5
V
Voltage
Input Open,
2.6
5
I
OL
= -0.5 mA
V
OL
Low Level Output Voltage
V
I
= 3V, I
OL
= 10 mA
0.45
V
I
IH
High-Level Input Current
V
I
= 25V
3.6
8.3
mA
V
I
= 3V
0.43
I
IL
Low-Level Input Current
V
I
= -25V
-3.6
-8.3
mA
V
I
= -3V
-0.43
I
OS
Short-Circuit
-3
mA
Output Current
(tip)
Receiver Switching Characteristic
V
CC
= 5V
Symbol
Parameter
Test Conditions
Min
Max
Unit
t
PLH
Propagation Delay Time,
C
L
= 15
F
190
ns
Low-To-High-Level Output
R
L
= 3.9 k
t
PHL
Propagation Delay Time,
C
L
= 15
F
60
ns
High -To- Low -Level Output
R
L
= 390 k
t
TLH
Transition Time,
C
L
= 15
F
175
ns
Low-To-High-Level Output
R
L
= 3.9 k
SL75232
System Logic
Semiconductor
SLS
t
THL
Transition Time,
C
L
= 15
F
20
ns
High -To- Low -Level Output
R
L
= 390 k
Parameter Measurement Information
DRIVER
C
L
R
L
Test Circuit
OUTPUT
PULSE
GENERATOR
(See Note A)
RESEIVER
V
CC
C
L
R1
Test Circuit
OUTPUT
(See Note C)
PULSE
GENERATOR
(See Note A)
Voltage Waveform
INTPUT
50%
50%
1.5V
1.5V
3V
V
OL
V
OH
OV
10ns
t
PHL
t
PLH
t
TLH
t
THL
OUTPUT
T
W
=25
s, Voltage Waveform
INTPUT
1.5V
1.5V
50%
10%
10%
90%
90%
50%
3V
V
OL
V
OH
OV
10ns
t
PHL
t
PLH
t
TLH
t
THL
OUTPUT
Note A. The pulse generator has the following characteristics. f = 200 KHz, Z
O
= 50
B. C included probe and jig capacitance.
C. All diodes are 1N3064 or equivalent.
Fig1. Propagation and Transition Times
Typical Application
D B 9 5
S I O C a r d
I L A 7 5 2 3 2 N , D
9
8
6
7
5
4
3
2
1
+5V
T X
C T S
D T R
R I
-12V
/ R I
/ D T R
S O U T
/ C T S
R X
R T S
/ R T S
S I N
D S R
D C D
+12V
/ D C D
/ D S R
U A R T
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