SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
D
D
D
D
D
D
D
D
D
D, DB†, OR N PACKAGE
(TOP VIEW)
Bi-MOS Technology With TTL and CMOS
Compatibility
Meets or Exceeds the Requirements of
ANSI EIA / TIA-232-E and ITU
Recommendation V.28
Very Low Quiescent Current . . . 95 µA Typ
VCC ± = ± 12 V
Current-Limited Outputs . . . 10 mA Typ
CMOS-and TTL-Compatible Inputs
On-Chip Slew Rate Limited to 30 V/µs max
Flexible Supply Voltage Range
Characterized at VCC ± of ± 4.5 V and ± 15 V
Functionally Interchangeable With Texas
Instruments SN75188, Motorola MC1488,
and National Semiconductor DS14C88
VCC –
1A
1Y
2A
2B
2Y
GND
1
14
2
13
3
12
4
11
5
10
6
9
7
8
VCC +
4B
4A
4Y
3B
3A
3Y
† The DB package is only avalable left-end taped
and reeled, i.e., order device SN75C188DBLE.
description
The SN75C188 is a monolithic, low-power, quadruple line driver that interfaces data terminal equipment with
data communications equipment. This device is designed to conform to ANSI Standard EIA / TIA-232-E.
An external diode in series with each supply-voltage terminal is needed to protect the SN75C188 under certain
fault conditions to comply with EIA / TIA-232-E.
The SN75C188 is characterized for operation from 0°C to 70°C.
Function Tables
DRIVER 1
B
Y
H
L
L
H
DRIVERS 2 – 4
A
B
Y
H
H
L
L
X
H
X
L
H
H = high level, L = low level,
X = don’t care
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.
Copyright 1997, 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.
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1
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
logic symbol†
1A
2A
2B
3A
3B
4A
4B
logic diagram (positive logic)
3
2
4
&
6
5
1Y
1A
2Y
2A
2B
9
8
10
3A
3Y
3B
12
11
13
4A
4Y
4B
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
2
3
4
6
5
9
8
10
12
11
13
1Y
2Y
3Y
4Y
positive logic
Y = A (driver 1)
Y = AB or A + B (drivers 2 through 4)
schematics of inputs and outputs
EACH OUTPUT‡
EACH INPUT
VCC +
VCC +
Internal
1.4-V Ref
to GND
Input A
Input B
(drivers 2, 3
and 4 only)
(driver 1 only)
160 Ω
Output
74 Ω
GND
GND
72 Ω
VCC –
VCC –
‡ All resistor values shown are nominal.
2
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SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage, VCC + (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 V
Supply voltage, VCC – (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V
Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC – to VCC +
Output voltage range, VO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC – – 6 V to VCC + + 6 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Dissipation Rating Table
Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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.
NOTE 1: All voltage values are with respect to the network ground terminal.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
D
950 mW
7.6 mW/°C
608 mW
DB
525 mW
4.2 mW/°C
336 mW
N
1150 mW
9.2 mW/°C
736 mW
recommended operating conditions
MIN
NOM
MAX
Supply voltage, VCC +
4.5
12
15
V
Supply voltage, VCC –
– 4.5
– 12
–15
V
VCC +
V
Input voltage, VI
VCC – +2
2
High-level Input voltage, VIH
Low-level Input voltage, VIL
Operating free-air temperature, TA
0
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UNIT
V
0.8
V
70
°C
3
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
electrical characteristics over operating free-air temperature range, VCC+ = 12 V, VCC– = –12 V
(unless otherwise noted)
PARAMETER
VOH
VOL
IIH
IIL
High level output voltage
High-level
Low-level output voltage
g
(see Note 2)
VIL = 0
0.8
8V
V,
VIH = 2 V
V,
RL = 3 kΩ
RL = 3 kΩ
MIN
VCC + = 5 V,,
VCC – = – 5 V
4
VCC + = 12 V,,
VCC – = – 12 V
10
TYP†
MAX
UNIT
V
VCC + = 5 V,,
VCC – = – 5 V
–4
VCC + = 12 V,,
VCC – = – 12 V
– 10
V
10
µA
– 10
µA
Low-level input current
VI = 5 V
VI = 0
IOS(H)
High-level
g
short-circuit
output current‡
VI = 0
0.8
8V
V,
VO = 0 or VCC –
– 5.5
55
– 10
– 19.5
19 5
mA
IOS(L)
Low-level short-circuit
output current‡
VI = 2 V
V,
VO = 0 or VCC +
55
5.5
10
19 5
19.5
mA
rO
Output resistance, power off
VCC + = 0,
VCC – = 0,
VI = – 2 V to 2 V
VCC + = 5 V,,
No load
VCC – = – 5 V,
8V
All inputs at 2 V or 0
0.8
90
160
VCC + = 12 V,,
No load
VCC – = – 12 V,
All inputs at 2 V or 0
0.8
8V
95
160
VCC + = 5 V,,
No load
VCC – = – 5 V,
8V
All inputs at 2 V or 0
0.8
– 90
– 160
VCC + = 12 V,
No load
VCC – = – 12
All inputs at 2 V or 0
0.8
8V
– 95
– 160
ICC +
ICC –
High-level input current
TEST CONDITIONS
Supply current from VCC +
Supply current from VCC –
Ω
300
µA
µA
† All typical values are at TA = 25°C.
‡ Not more than one output should be shorted at a time.
NOTE 2: The algebraic convention, in which the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic
levels only; e.g., if – 4 V is a maximum, the typical value is a more negative voltage.
switching characteristics, VCC+ = 12 V, VCC– = –12 V, TA = 25°C
PARAMETER
TEST CONDITIONS
tPLH
tPHL
Propagation delay time, low- to high-level output§
Propagation delay time, high- to low-level output§
tTLH
tTHL
Transition time, low- to high-level output¶
Transition time, high- to low-level output¶
Transition time, low- to high-level output#
tTLH
tTHL
Transition time, high- to low-level output#
Output slew rate§
RL = 3 kΩ,,
See Figure 1
RL = 3 kΩ to 7 kΩ,,
See Figure 1
MIN
TYP
UNIT
3
µs
3.5
µs
0.53
3.2
µs
0.53
3.2
µs
CL = 15 pF,,
CL = 2500 pF,,
MAX
1.5
µs
1.5
µs
SR
RL = 3 kΩ to 7 kΩ,
CL = 15 pF
6
15
30
V/µs
§ Measured at the 50% level
¶ Measured between the 10% and 90% points on the output waveform
# Measured between the 3-V and – 3-V points on the output waveform (EIA / TIA-232-E conditions), all unused inputs tied either high or low
4
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SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
PARAMETER MEASUREMENT INFORMATION
Input
3V
Input
1.5 V
1.5 V
0V
Pulse
Generator
(see Note A)
tPHL
Output
CL
(see Note B)
RL
tPLH
VOH
90%
90%
50%
50%
10% 10%
Output
tTHL
TEST CIRCUIT
VOL
tTLH
VOLTAGE WAVEFORMS
NOTES: A. The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHZ, ZO = 50 Ω, tr = tf ≤ 50 ns.
B. CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms
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5
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
OUTPUT CURRENT
vs
OUTPUT VOLTAGE
VOLTAGE TRANSFER CHARACTERISTICS
12
VCC ± = ± 15 V
VCC ± = ± 12 V
9
VCC ± = ± 9 V
6
VCC ± = ± 5 V
20
0
ÁÁÁ
ÁÁÁ
–3
VCC ± = ± 5 V
–6
VCC ± = ± 9 V
RL = 3 kΩ
TA = 25°C
1.2 1.4 1.6 1.8
3-kΩ Load Line
0
–4
VOH (VI = 0.8 V)
–8
– 16
– 15
1
4
– 12
VCC ± = ± 5 V
0.2 0.4 0.6 0.8
8
ÁÁ
ÁÁ
VCC ± = ± 12 V
–9
0
VOL = (VI = 2 V)
12
3
– 12
VCC ± = ± 12 V
TA = 25°C
16
– Output Current – mA
I IO
O
VVO
O – Output Voltage – V
15
– 20
– 16
2
– 12
SHORT-CIRCUIT OUTPUT CURRENT
vs
FREE-AIR TEMPERATURE
4
8
12
16
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
15
12
RL = 3 kΩ
VCC ± = ± 12 V
VOH (VCC ± = ±12 V, VI = 0.8 V)
10
8
IOS(L)
VI = 2 V
VO = 0 or VCC +
5
VO – Output Voltage – V
IOS – Short-Circuit Output Current – mA
I OS
0
Figure 3
Figure 2
0
–5
IOS(H)
VI = 0.8 V
VO = 0 or VCC –
– 10
4
VOH (VCC ± = ± 5 V, VI = 0.8 V)
0
VOL( VCC ± = ± 5 V, VI = 2 V)
–4
–8
– 15
0
20
40
60
80
100
120
VOL (VCC ± = ± 12 V, VI = 2 V)
– 12
0
20
TA – Free-Air Temperature – °C
40
60
Figure 5
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80
100
TA – Free-Air Temperature – °C
Figure 4
6
–4
VO – Output Voltage – V
VI – Input Voltage – V
ÁÁ
ÁÁ
ÁÁ
–8
• DALLAS, TEXAS 75265
120
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
INPUT CURRENT
vs
FREE-AIR TEMPERATURE
POWER-OFF OUTPUT RESISTANCE
vs
FREE-AIR TEMPERATURE
120
500
VCC ± = ± 12 V
VCC + = VCC – = 0
rro
O – Power-off Output Resistance – Ω
100
IIII – Input Current – nA
80
IIH, VI = 5 V
60
40
20
0
IIL, VI = 0
– 20
– 40
0
20
40
60
80
100
475
450
VO = – 2 V
425
VO = 2 V
400
375
350
325
300
120
0
20
TA – Free-Air Temperature – °C
40
Figure 6
ICC +
40
RL = ∞
VI = 0.8 V or 2 V
0
– 40
VCC ± = ± 5 V
– 80
120
VCC ± = ± 12 V
CL = 15 pF
25
SR – Output Slew Rate – V/s
I CC ± – Supply Current – µ A
30
VCC ± = ± 5 V
100
OUTPUT SLEW RATE
vs
FREE-AIR TEMPERATURE
VCC ± = ± 12 V
80
80
Figure 7
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
120
60
TA – Free-Air Temperature – °C
Slew Rate
Positive Transition
RL = 3 kΩ
RL = 7 kΩ
20
15
RL = 3 kΩ
RL = 7 kΩ
Slew Rate
Negative
Transition
10
5
ICC –
VCC ± = ± 12 V
– 120
0
20
40
60
80
100
120
0
0
20
TA – Free-Air Temperature – °C
40
60
80
100
120
TA – Free-Air Temperature – °C
Figure 8
Figure 9
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7
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
PROPAGATION DELAY TIME
vs
FREE-AIR TEMPERATURE
2
2
RL = 7 kΩ
tPHL
RL = 3 kΩ
VCC ± = ± 12 V
CL = 15 pF
1.5
RL = 3 kΩ
tPLH
1
VCC + = 12 V
VCC – = – 12 V
RL = 3 kΩ to 7 kΩ
1.75
t t – Output Transition Time – µ s
t pd – Propagation Delay Time – µ s
tpd
OUTPUT TRANSITION TIME
vs
FREE-AIR TEMPERATURE
RL = 7 kΩ
0.5
tTHL
tTLH
1.5
CL = 2500 pF
1.25
tTLH
CL = 15 pF
1
tTHL
0.75
0.5
0.25
0
0
0
20
40
60
80
100
0
120
20
40
60
Figure 10
Figure 11
APPLICATION INFORMATION
Output to RTL
– 0.7 V to 3.7 V
1/4 ’C188
3V
Output to DTL
– 0.7 V to 5.7 V
Input From
TTL, DTL, or CMOS
1/4 ’C188
5V
Output to HNIL or
10-V CMOS
– 0.7 V to 10 V
1/4 ’C188
Output to MOS
– 10 V to 0 V
1 kΩ
1/4 ’C188
VCC ± = ± 12 V
10 kΩ
– 12 V
Figure 12. Logic Translator Applications
8
80
100
TA – Free-Air Temperature – °C
TA – Free-Air Temperature – °C
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120
SN75C188
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS033F – JANUARY 1988 – REVISED MARCH 1997
APPLICATION INFORMATION
+ 15 V
Output
SN75C188
VCC +
VCC +
SN75C188
VCC –
VCC –
NOTE A: External diodes placed in series with the VCC + and VCC – leads protect the SN75C188 in the fault condition where the device outputs
are shorted to ± 15 V and the power supplies are at low voltage and provide low-impedance paths to GND.
Figure 13. Power Supply Protection to Meet Power-Off Fault Conditions of Standard EIA/TIA-232-E
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PACKAGE OPTION ADDENDUM
www.ti.com
13-Aug-2021
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
SN75C188D
ACTIVE
SOIC
D
14
50
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SN75C188
SN75C188DBR
ACTIVE
SSOP
DB
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
CA188
SN75C188DR
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SN75C188
SN75C188DRE4
ACTIVE
SOIC
D
14
2500
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SN75C188
SN75C188N
ACTIVE
PDIP
N
14
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
SN75C188N
SN75C188NSR
ACTIVE
SO
NS
14
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
75C188
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of