MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B – SEPTEMBER 1983 – REVISED MAY 1995
D
D
D
D
D
D
D
Meet or Exceed the Requirements of ANSI
EIA/ TIA-232-E and ITU Recommendation
V.28
Designed to Be Interchangeable With
Motorola MC1488
Current-Limited Output: 10 mA Typical
Power-Off Output Impedance: 300
Ω
Minimum
Slew Rate Control by Load Capacitor
Flexible Supply Voltage Range
Input Compatible With Most TTL Circuits
SN55188 . . . J OR W PACKAGE
MC1488, SN75188 . . . D OR N PACKAGE
(TOP VIEW)
V
CC –
1A
1Y
2A
2B
2Y
GND
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
CC +
4B
4A
4Y
3B
3A
3Y
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 2–4)
A
H
L
X
B
H
X
L
Y
L
H
H
SN55188 . . . FK PACKAGE
(TOP VIEW)
1Y
NC
2A
NC
2B
4
5
6
7
8
3 2 1 20 19
18
17
16
15
14
9 10 11 12 13
1A
VCC –
NC
V CC+
4B
4A
NC
4Y
NC
3B
NC – No internal connection
Copyright
©
1995, Texas Instruments Incorporated
H = high level, L = low level,
X = irrelevant
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.
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.
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2Y
GND
NC
3Y
3A
1
MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B – SEPTEMBER 1983 – REVISED MAY 1995
logic symbol
†
1A
2A
2B
3A
3B
4A
4B
2
4
5
9
10
12
13
11
8
&
3
6
1Y
2Y
logic diagram (positive logic)
1A
2A
2B
3Y
3A
4Y
3B
4A
2
4
5
9
10
12
13
3
1Y
6
2Y
8
3Y
† 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.
11
4B
4Y
Positive logic
Y = A (driver 1)
Y = AB or A + B (drivers 2 thru 4)
schematic (each driver)
To Other
Drivers
VCC +
8.2 kΩ
A
Input(s)
B
70
Ω
3.6 kΩ
300
Ω
6.2 kΩ
Output
GND
To
Other
Drivers
VCC –
10 kΩ
3.7 kΩ
70
Ω
To Other Drivers
Resistor values shown are nominal.
2
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MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B – SEPTEMBER 1983 – REVISED MAY 1995
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
D
FK
J
N
W
TA
≤
25°C
POWER RATING
950 mW
1375 mW
1375 mW
1150 mW
1000 mW
DERATING FACTOR
ABOVE TA = 25°C
7.6 mW/°C
11.0 mW/°C
11.0 mW/°C
9.2 mW/°C
8.0 mW/°C
TA = 70°C
POWER RATING
608 mW
880 mW
880 mW
736 mW
640 mW
TA = 125°C
POWER RATING
–
275 mW
275 mW
–
200 mW
recommended operating conditions
SN55188
MIN
Supply voltage, VCC +
Supply voltage, VCC –
High-level input voltage, VIH
Low-level input voltage, VIL
Operating free-air temperature, TA
– 55
7.5
– 7.5
1.9
0.8
125
0
NOM
9
–9
MAX
15
– 15
MC1488, SN75188
MIN
7.5
– 7.5
1.9
0.8
70
NOM
9
–9
MAX
15
– 15
UNIT
V
V
V
V
°C
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MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B – SEPTEMBER 1983 – REVISED MAY 1995
electrical characteristics over operating free-air temperature range, V
CC±
=
±9
V (unless otherwise
noted)
PARAMETER
TEST CONDITIONS
VCC + = 9 V,
VCC – = – 9 V
VCC + = 13.2 V,
VCC – = – 13.2 V
VCC + = 9 V,
VCC – = – 9 V
VCC + = 13.2 V,
VCC – = – 13.2 V
SN55188
MIN
TYP†
6
9
7
10.5
10 5
– 7‡
– 10 5‡
10.5
–6
–9
10
–1
VO = 0
VO = 0
VCC – = 0,
All inputs at 1.9 V
All inputs at 0.8 V
All inputs at 1.9 V
All inputs at 0.8 V
All inputs at 1.9 V
All inputs at 0.8 V
All inputs at 1.9 V
All inputs at 0.8 V
All inputs at 1.9 V
All inputs at 0.8 V
All inputs at 1.9 V
All inputs at 0.8 V
VCC – = – 9 V,
VCC – = – 12 V,
– 18
– 13
–4 6
4.6
46
4.6
300
15
4.5
19
5.5
20
6
25
7
34
12
– 17
– 0.5
– 23
– 0.5
– 34
– 2.5
333
576
– 18
– 13
–9
9
– 1.6
– 13 5
13.5
13 5
13.5
–6
6
300
15
4.5
19
5.5
20
6
25
7
34
12
– 17
– 0.015
– 23
– 0.015
– 34
– 2.5
333
mW
576
mA
mA
–1
–9
9
MAX
MC1488, SN75188
MIN TYP†
MAX
6
9
7
V
10.5
10 5
–7
– 10 5
10.5
–6
V
–9
10
– 1.6
– 12
12
µA
mA
mA
mA
Ω
UNIT
VOH
High level output voltage
High-level
VIL = 0.8 V,
RL = 3 kΩ
VOL
Low level output voltage
Low-level
VIH = 1.9 V,
RL = 3 kΩ
VI = 5 V
VI = 0
VI = 0 8 V
0.8 V,
VI = 1 9 V
1.9 V,
VCC + = 0,
VO = – 2 V to 2 V
VCC + = 9 V,
No load
IIH
IIL
IOS(H)
IOS(L)
ro
High-level input current
Low-level input current
Short-circuit output
current at high level§
Short-circuit output
current at low level§
Output resistance,
power off
ICC +
Supply current from
y
VCC +
VCC + = 12 V,
No load
VCC + = 15 V,
No load, TA = 25°C
VCC – = – 9 V,
No load
ICC –
Supply current from ICC –
VCC – = – 12 V,
No load
VCC – = – 15 V,
No load, TA = 25°C
VCC + = 9 V,
No load
VCC + = 12 V,
No load
PD
Total power dissi ation
ower dissipation
† 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.
4
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DALLAS, TEXAS 75265
MC1488, SN55188, SN75188
QUADRUPLE LINE DRIVERS
SLLS094B – SEPTEMBER 1983 – REVISED MAY 1995
switching characteristics, V
CC±
=
±9
V, T
A
= 25°C
PARAMETER
tPLH
tPHL
tTLH
tTHL
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Transition time, low- to high-level output†
Transition time, high- to low-level output†
Transition time, low- to high-level output‡
RL = 3 kΩ,
,
See Figure 1
CL = 15 pF,
,
TEST CONDITIONS
MIN
TYP
220
100
55
45
2.5
3.0
MAX
350
175
100
75
UNIT
ns
ns
ns
ns
µs
µs
tTLH
RL = 3 kΩ to 7 kΩ,
CL = 2500 pF,
See Figure 1
‡
tTHL
Transition time, high- to low-level output
† 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
Input
Input
Pulse
Generator
(see Note A)
RL
tPHL
Output
Output
CL
(see Note B)
tTHL
TEST CIRCUIT
NOTES: A. The pulse generator has the following characteristics: tw = 0.5
µs,
PRR
≤
1 MHz, ZO = 50
Ω.
B. CL includes probe and jig capacitance.
90%
50%
10%
50%
10%
1.5 V
1.5 V
tPLH
90%
0V
VOH
VOL
tTLH
VOLTAGE WAVEFORMS
3V
Figure 1. Test Circuit and Voltage Waveforms
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