MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B SEPTEMBER 1983 REVISED MAY 1995
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
Meet or Exceed the Requirements of ANSI
EIA / TIA-232-E and ITU Recommendation
V.28
D
Designed to Be Interchangeable With
Motorola MC1488
D
Current-Limited Output: 10 mA Typical
D
Power-Off Output Impedance: 300
Minimum
D
Slew Rate Control by Load Capacitor
D
Flexible Supply Voltage Range
D
Input Compatible With Most TTL Circuits
description
The MC1488, SN55188, and SN75188 are
monolithic quadruple line drivers designed to
interface data terminal equipment with data
communications equipment in conformance with
ANSI EIA/TIA-232-E using a diode in series with
each supply-voltage terminal as shown under
typical applications.
The SN55188 is characterized for operation over
the full military temperature range of 55
C to
125
C. The MC1488 and SN75188 are
characterized for operation from 0
C to 70
C.
FUNCTION TABLE
(drivers 24)
A
B
Y
H
H
L
L
X
H
X
L
H
H = high level, L = low level,
X = irrelevant
Copyright
1995, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC
1A
1Y
2A
2B
2Y
GND
V
CC +
4B
4A
4Y
3B
3A
3Y
SN55188 . . . J OR W PACKAGE
MC1488, SN75188 . . . D OR N PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
4A
NC
4Y
NC
3B
1Y
NC
2A
NC
2B
SN55188 . . . FK PACKAGE
(TOP VIEW)
1A
NC
3Y
3A
4B
2Y
GND
NC
NC No internal connection
CC+
V
CC
V
MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B SEPTEMBER 1983 REVISED MAY 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
4Y
3Y
2Y
1Y
13
12
10
9
5
4
2
11
8
6
3
4B
4A
3B
3A
2B
2A
1A
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
Pin numbers shown are for the D and N packages.
&
logic diagram (positive logic)
9
5
4
2
10
12
13
4Y
3Y
2Y
1Y
1A
2A
2B
3A
3B
4A
4B
11
8
6
3
Positive logic
Y = A (driver 1)
Y = AB or A + B (drivers 2 thru 4)
schematic (each driver)
Output
300
70
3.7 k
10 k
To Other Drivers
VCC
Drivers
Other
To
GND
3.6 k
Input(s)
B
A
VCC +
70
6.2 k
8.2 k
Drivers
To Other
Resistor values shown are nominal.
MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B SEPTEMBER 1983 REVISED MAY 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage, V
CC +
at (or below) 25
C free-air temperature (see Notes 1 and 2)
15 V
. . . . . . . . . . . . . . . . .
Supply voltage, V
CC
at (or below) 25
C free-air temperature (see Notes 1 and 2)
15 V
. . . . . . . . . . . . . . . .
Input voltage, V
I
15 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage, V
O
15 V to 15 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation (see Note 2)
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: SN55188 55
C to 125
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MC1488, SN75188
0
C to 70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
65
C to 150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Case temperature for 60 seconds, FK package
260
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or N package
260
C
. . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: J or W package
300
C
. . . . . . . . . . . . . . . .
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. All voltage values are with respect to the network ground terminal.
2. For operation above 25
C free-air temperature, refer to the maximum supply voltage curve, Figure 6. In the FK and J packages,
SN55188 chips are alloy mounted.
DISSIPATION RATING TABLE
PACKAGE
TA
25
C
DERATING FACTOR
TA = 70
C
TA = 125
C
PACKAGE
A
POWER RATING
ABOVE TA = 25
C
A
POWER RATING
A
POWER RATING
D
950 mW
7.6 mW/
C
608 mW
FK
1375 mW
11.0 mW/
C
880 mW
275 mW
J
1375 mW
11.0 mW/
C
880 mW
275 mW
N
1150 mW
9.2 mW/
C
736 mW
W
1000 mW
8.0 mW/
C
640 mW
200 mW
recommended operating conditions
SN55188
MC1488, SN75188
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
Supply voltage, VCC +
7.5
9
15
7.5
9
15
V
Supply voltage, VCC
7.5
9
15
7.5
9
15
V
High-level input voltage, VIH
1.9
1.9
V
Low-level input voltage, VIL
0.8
0.8
V
Operating free-air temperature, TA
55
125
0
70
C
MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B SEPTEMBER 1983 REVISED MAY 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over operating free-air temperature range, V
CC
=
9 V (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
SN55188
MC1488, SN75188
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VCC + = 9 V,
6
7
6
7
VOH
High level output voltage
VIL = 0.8 V,
CC +
VCC = 9 V
6
7
6
7
V
VOH
High-level output voltage
IL
RL = 3 k
VCC + = 13.2 V,
9
10 5
9
10 5
V
CC +
VCC = 13.2 V
9
10.5
9
10.5
VCC + = 9 V,
7
6
7
6
VOL
Low level output voltage
VIH = 1.9 V,
CC +
VCC = 9 V
7
6
7
6
V
VOL
Low-level output voltage
IH
RL = 3 k
VCC + = 13.2 V,
10 5
9
10 5
9
V
CC +
VCC = 13.2 V
10.5
9
10.5
9
IIH
High-level input current
VI = 5 V
10
10
A
IIL
Low-level input current
VI = 0
1
1.6
1
1.6
mA
IOS(H)
Short-circuit output
VI = 0 8 V
VO = 0
4 6
9
13 5
6
9
12
mA
IOS(H) current at high level
VI = 0.8 V,
VO = 0
4.6
9
13.5
6
9
12
mA
IOS(L)
Short-circuit output
VI = 1 9 V
VO = 0
4 6
9
13 5
6
9
12
mA
IOS(L)
current at low level
VI = 1.9 V,
VO = 0
4.6
9
13.5
6
9
12
mA
r
Output resistance,
VCC + = 0,
VCC = 0,
300
300
ro
power off
CC +
VO = 2 V to 2 V
CC
300
300
VCC + = 9 V,
All inputs at 1.9 V
15
20
15
20
CC +
No load
All inputs at 0.8 V
4.5
6
4.5
6
ICC
Supply current from
VCC + = 12 V,
All inputs at 1.9 V
19
25
19
25
mA
ICC +
y
VCC +
CC +
No load
All inputs at 0.8 V
5.5
7
5.5
7
mA
VCC + = 15 V,
All inputs at 1.9 V
34
34
CC +
No load, TA = 25
C
All inputs at 0.8 V
12
12
VCC = 9 V,
All inputs at 1.9 V
13
17
13
17
CC
No load
All inputs at 0.8 V
0.5
0.015
ICC
Supply current from ICC
VCC = 12 V,
All inputs at 1.9 V
18
23
18
23
mA
ICC
Supply current from ICC
CC
No load
All inputs at 0.8 V
0.5
0.015
mA
VCC = 15 V,
All inputs at 1.9 V
34
34
CC
No load, TA = 25
C
All inputs at 0.8 V
2.5
2.5
VCC + = 9 V,
VCC = 9 V,
333
333
PD
Total power dissipation
CC +
No load
CC
333
333
mW
PD
Total ower dissi ation
VCC + = 12 V,
No load
VCC = 12 V,
576
576
mW
All typical values are at TA = 25
C.
The algebraic convention, in which the less positive (more negative) limit is designated as minimum, is used in this data sheet for logic voltage
levels only, e.g., if 6 V is a maximum, the typical value is a more negative voltage.
Not more than one output should be shorted at a time.
MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B SEPTEMBER 1983 REVISED MAY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics, V
C C
=
9 V, T
A
= 25
C
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
220
350
ns
tPHL
Propagation delay time, high- to low-level output
RL = 3 k
,
CL = 15 pF,
100
175
ns
tTLH
Transition time, low- to high-level output
L
,
L
,
See Figure 1
55
100
ns
tTHL
Transition time, high- to low-level output
45
75
ns
tTLH
Transition time, low- to high-level output
RL = 3 k
to 7 k
,
CL = 2500 pF,
2.5
s
tTHL
Transition time, high- to low-level output
L
L
See Figure 1
3.0
s
Measured between 10% and 90% points of output waveform.
Measured between 3 V and 3 V points on the output waveform (EIA / TIA-232-E conditions).
PARAMETER MEASUREMENT INFORMATION
10%
50%
90%
Output
10%
50%
90%
1.5 V
Input
tPHL
tPLH
1.5 V
3 V
0 V
VOH
VOL
tTLH
tTHL
VOLTAGE WAVEFORMS
TEST CIRCUIT
Output
(see Note B)
CL
RL
Input
Pulse
Generator
(see Note A)
NOTES: A. The pulse generator has the following characteristics: tw = 0.5
s, PRR
1 MHz, ZO = 50
.
B. CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms
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