SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
D
D
D
D
D
D
D
D
D OR N PACKAGE
(TOP VIEW)
Meets ANSI EIA / TIA-232-E and ITU
Recommendation V.28
Very Low Supply Current
Sleep Mode:
3-State Outputs in High-Impedance State
Ultra-Low Supply Current . . . 17 µA Typ
Improved Functional Replacement for:
SN75188,
Motorola MC1488,
National Semiconductor DS14C88, and
DS1488
CMOS- and TTL -Compatible Data Inputs
On-Chip Slew-Rate Limit . . . 30 V/µs
Output Current Limit . . . 10 mA Typ
Wide Supply Voltage Range . . . ± 4.5 V
to ± 15 V
VCC –
1A
1Y
2A
2B
2Y
GND
1
14
2
13
3
12
4
11
5
10
6
9
7
8
VCC+
SM
4A
4Y
3B
3A
3Y
NOT RECOMMENDED FOR NEW DESIGNS
description
The SN75C198 is a monolithic low-power BI-MOS device containing four low-power line drivers designed to
interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE) in conformance with the
specifications of ANSI EIA / TIA-232-E. The drivers of the SN75C198 are similar to those of the SN75C188
quadruple driver. The drivers have a controlled-output slew rate that is limited to a maximum of 30 V/µs. This
feature eliminates the need for external components.
The sleep-mode input, SM, can switch the outputs to high impedance, which avoids the transmission of
corrupted data during power-up and allows significant system power savings during data-off periods.
The SN75C198 is characterized for operation from 0°C to 70°C.
FUNCTION TABLE
INPUTS
OUTPUT
Y
SM
A
B
H
H
H
L
H
L
X
H
H
X
L
H
L
X
X
Z
H = high level, L = low level,
X = irrelevant, Z= high impedance
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
SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
logic symbol†
SM
13
logic diagram (positive logic)
SM
EN
1A
1A
2A
2B
3A
3B
4A
3
2
4
5
9
10
12
&
&
6
8
11
2
3
1Y
1Y
2A
2Y
2B
3Y
3A
3B
4
5
9
10
6
8
2Y
3Y
4Y
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
2
13
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4A
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12
11
4Y
SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
schematics of inputs and outputs
EQUIVALENT OF A AND B INPUTS
EQUIVALENT OF SLEEP-MODE INPUT
VCC +
VCC+
Input A
Input B
(Drivers 2
and 3 Only)
Internal
1.4-V
Reference
to GND
SM
Input
Internal
1.4-V
Reference
to GND
(Drivers 1
and 4)
VCC –
VCC ±
TYPICAL OF Y OUTPUTS
VCC+
160 Ω
74 Ω
Output
72 Ω
VCC –
All resistor values shown are nominal.
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SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – 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 – . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V
Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 15 V to 15 V
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: SN75C198 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 voltages are with respect to the network ground terminal.
DISSIPATION RATING TABLE
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
N
1150 mW
9.2 mW/°C
730 mW
PACKAGE
recommended operating conditions
MIN
NOM
MAX
UNIT
Supply voltage, VCC +
4.5
12
15
V
Supply voltage, VCC –
– 4.5
– 12
– 15
V
VCC +
V
Input voltage, VI (see Figure 2)
VCC – + 2
2
High-level input voltage, VIH
Low level input voltage,
Low-level
voltage VIL
0.8
SM input
0.6
Operating free-air temperature, TA
4
V
A and B inputs
0
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70
V
°C
SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
electrical characteristics over recommended operating free-air temperature range, VCC ± = ± 12 V,
SM at 2 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VOH
High level output voltage
High-level
VIH = 0
0.8
8V
V,
RL = 3 kΩ
VCC ± = ± 5 V
VCC ± = ± 12 V
VOL
Low level output voltage (see Note 2)
Low-level
VIH = 2 V
V,
RL = 3 kΩ
VCC ± = ± 5 V
VCC ± = ± 12 V
IIH
IIL
High-level input current
VI = 5 V
VI = 0 V
IOZ
Low-level input current
High impedance state output current
High-impedance-state
SM at 0.6
06V
IOS(H)
IOS(L)
High-level short-circuit output current‡
Low-level short-circuit output current‡
VI = 0.8 V,
VI = 2 V,
VO = 0 or VCC –
VO = 0 or VCC +
ro
Output resistance
VCC ± = 0,
VO = – 2 V to 2 V
ICC +
ICC –
Supply current from VCC +
Supply current from VCC –
MIN
TYP†
MAX
4
UNIT
V
10
–4
– 10
V
10
µA
– 10
µA
VO = 12 V,,
VCC ± = ± 12 V
100
VO = – 12 V,,
VCC ± = ± 12 V
– 100
µA
– 4.5
– 10
– 19.5
mA
4.5
10
19.5
mA
A and B inputs at 0.8 V or 2 V,,
No load
VCC ± = ± 5 V
VCC ± = ± 12 V
90
160
95
160
A and B inputs at 0.8 V or 2 V,,
RL = 3 kΩ,
SM at 0.6 V
VCC ± = ± 5 V
VCC ± = ± 12 V
40
A and B inputs at 0.8 V or 2 V,,
No load
VCC ± = ± 5 V
VCC ± = ± 12 V
– 90
– 160
– 95
– 160
A and B inputs at 0.8 V or 2 V,
RL = 3 kΩ,
SM at 0.6 V
VCC ± = ± 5 V
VCC ± = ± 12 V
– 40
Ω
300
µA
40
µA
– 40
† All typical values are at TA = 25°C.
‡ Not more than one output should be shorted at a time.
NOTE 2: The algebraic convention, where the more positive (less negative) limit is designated as maximum, is used in this data sheet for logic
levels only, e.g., if – 10 V is a maximum, the typical value is a more negative voltage.
switching characteristics over recommended operating free-air temperature range, VCC ± = ± 12 V
(unless otherwise noted)
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¶
tTLH
tTHL
Transition time, low- to high-level output#
Transition time, high- to low-level output#
RL = 3 kΩ to 7 kΩ,,
See Figure 2
CL = 2500 pF,,
tPZH
tPHZ
Output enable time to high level
RL = 3 kΩ to 7 kΩ,,
See Figure 3
CL = 15 pF,,
tPZL
tPLZ
Output enable time to low level
RL = 3 kΩ to 7 kΩ,,
See Figure 4
CL = 15 pF,,
Output disable time from high level
Output disable time from low level
Output slew rate#
RL = 3 kΩ to 7 kΩ,,
See Figure 1
MIN
0.53
MAX
3
µs
µs
1
3.2
µs
1
3.2
µs
µs
1.5
µs
1.5
SR
RL = 3 kΩ to 7 kΩ,
CL = 15 pF
† All typical values are at TA = 25°C.
§ tPHL and tPLH include the additional time due to on-chip slew rate and are measured at the 50% points.
¶ Measured between 10% and 90% points of output waveform
# Measured between 3-V and – 3-V points of output waveform
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UNIT
3.5
CL = 15 pF,,
0.53
POST OFFICE BOX 655303
TYP†
15
50
µs
10
µs
15
µs
10
µs
30
V/µs
5
SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
PARAMETER MEASUREMENT INFORMATION
Input
3V
Input
0V
Pulse
Generator
(see Note A)
tPHL
Output
CL
(see Note B)
RL
tPLH
VOH
90%
50%
10%
Output
VOL
tTHL
TEST CIRCUIT
NOTES: A.
B.
tTLH
VOLTAGE WAVEFORMS
The pulse generator has the following characteristics: tw = 25 µs, PRR = 20 kHz, ZO = 50 Ω, tr = tf ≤ 50 ns.
CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms, Propagation and Transition Times
Input
3V
Input
Pulse
Generator
(see Note A)
0V
Output
3V
RL
CL
(see Note B)
3V
–3 V
–3 V
VOH
VOL
Output
tTHL
tTLH
VOLTAGE WAVEFORMS
TEST CIRCUIT
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 2. Test Circuit and Voltage Waveforms, Transition Times
Input
3V
Input
Pulse
Generator
(see Note A)
1.5 V
1.5 V
0V
tPZH
0V
RL
CL
(see Note B)
Output
VOH / 2
tPHZ
VOLTAGE WAVEFORMS
TEST CIRCUIT
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 3. Driver Test Circuit and Voltage Waveforms
6
0.5 V
Output
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VOH
Voff ≈ 0 V
SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
PARAMETER MEASUREMENT INFORMATION
Input
Pulse
Generator
(see Note A)
3V
1.5 V
Input
1.5 V
0V
Output
3V
tPZL
RL
CL
(see Note B)
TEST CIRCUIT
tPLZ
Output
VOL / 2
Voff ≈ 0 V
0.5 V
VOL
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 4. Driver Test Circuit and Voltage Waveforms
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SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
OUTPUT CURRENT
vs
OUTPUT VOLTAGE
VOLTAGE TRANSFER CHARACTERISTICS
20
9
VCC ± = ± 9 V
6
VCC ± = ± 5 V
12
3
0
ÁÁ
ÁÁ
–3
VCC ± = ± 5 V
–6
VCC ± = ± 9 V
RL = 3 kΩ
TA = 25°C
VCC ± = ± 15 V
4
3-kΩ Load Line
0
– 15
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
VOL (VI = 2 V)
8
ÁÁ
ÁÁ
VCC ± = ± 12 V
–9
– 12
VCC ± = ± 12 V
TA = 25°C
16
IO
I O – Output Current – mA
VO
VO – Output Voltage – V
VCC ± = ± 15 V
VCC ± = ± 12 V
–4
VOH (VI = 0.8 V)
–8
– 12
– 16
– 20
– 16
2
– 12
VI – Input Voltage – V
0
4
8
12
16
Figure 6
SHORT-CIRCUIT OUTPUT CURRENT
vs
FREE-AIR TEMPERATURE
OUTPUT VOLTAGE
vs
FREE-AIR TEMPERATURE
15
12
VCC ± = ± 12 V
VOH (VCC ± = ± 12 V, VI = 0.8 V)
10
RL = 3 kΩ
8
IOS(L)
VI = 2 V
VO = 0 or VCC +
5
VO
VO – Output Voltage – V
IOS
I OS – Short-Circuit Output Current – mA
–4
VO – Output Voltage – V
Figure 5
0
IOS(H)
VI = 0.8 V
– 10
4
VOH (VCC ± = ± 5 V, VI = 0.8 V)
0
ÁÁ
ÁÁ
–5
ÁÁÁ
ÁÁÁ
VOL (VCC ± = ± 5 V, VI = 2 V)
–4
–8
VOL (VCC ± = ± 12 V, VI = 2 V)
VO = 0 or VCC –
– 15
0
20
40
60
80
100
120
– 12
0
TA – Free-Air Temperature – °C
Figure 7
8
–8
20
40
60
80
100
TA – Free-Air Temperature – °C
Figure 8
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SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
INPUT CURRENT
vs
FREE-AIR TEMPERATURE
POWER-OFF OUTPUT RESISTANCE
vs
FREE-AIR TEMPERATURE
120
500
ro – Power-Off Output Resistance – Ω
VCC ± = ± 12 V
100
IIII – Input Current – nA
80
IIH (VI = 5 V)
60
40
20
0
IIL (VI = 0)
– 20
VCC ± = 0
475
450
VO = – 2 V
425
VO = 2 V
400
375
350
325
– 40
0
20
40
60
80
100
300
120
0
20
TA – Free-Air Temperature – °C
40
Figure 9
VCC ± = ± 12 V
40
0
– 40
ICC –
– 80
120
30
RL = No Load
VI = 0.8 V or 2 V
VCC ± = ± 5 V
ICC +
100
OUTPUT SLEW RATE
vs
FREE-AIR TEMPERATURE
SR – Output Slew Rate – V/
V/sµ s
I CC ± – Supply Current – µ A
80
80
Figure 10
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
120
60
TA – Free-Air Temperature – °C
VCC ± = ± 5 V
Slew Rate
Positive Transition
25
RL = 3 kΩ
20
RL =73 kΩ
15
RL = 3 kΩ
Slew Rate
Negative
Transition
10
RL = 7 kΩ
5
VCC ± = ± 12 V
– 120
0
20
40
60
80
100
120
0
0
TA – Free-Air Temperature – °C
20
40
60
80
100
120
TA – Free-Air Temperature – °C
Figure 11
Figure 12
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SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
PROPAGATION DELAY TIME
vs
FREE-AIR TEMPERATURE
2
2
RL = 7 kΩ
tPHL
RL = 3 kΩ
t t – Output Transition Time – µ s
1.75
t pd – Propagation Delay Time – µs s
tpd
OUTPUT TRANSITION TIME
vs
FREE-AIR TEMPERATURE
1.5
1.25
tPLH
1
RL = 3 kΩ
RL = 7 kΩ
0.75
0.5
VCC ± = ± 12 V
CL = 15 pF
0.25
20
40
60
80
100
1.5
tTLH
1.25
CL = 2500 pF
tTHL
tTHL
0.5
0
120
0
20
40
30
ttPHZ
PHZ – Output Disable Time From High Level – µ s
µs
ttPZH
PZH – Output Enable Time to High Level – us
100
120
OUTPUT DISABLE TIME FROM HIGH LEVEL
vs
FREE-AIR TEMPERATURE
VCC ± = ± 12 V
RL = 3 kΩ
CL = 15 pF
20
15
10
5
0
40
60
80
100
TA – Free-Air Temperature – °C
120
0.8
VCC ± = ± 12 V
RL = 3 kΩ
CL = 15 pF
0.7
0.6
0.5
0.4
0.3
0.2
0
Figure 15
10
80
Figure 14
OUTPUT ENABLE TIME TO HIGH LEVEL
vs
FREE-AIR TEMPERATURE
20
60
TA – Free-Air Temperature – °C
Figure 13
0
CL = 15 pF
0.75
TA – Free-Air Temperature – °C
25
tTLH
1
0.25
0
0
VCC ± = ± 12 V
RL = 3 kΩ to 7 kΩ
1.75
20
40
60
80
100
TA – Free-Air Temperature – °C
Figure 16
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SN75C198
QUADRUPLE LOW-POWER LINE DRIVERS
SLLS051C – JULY 1990 – REVISED MARCH 1997
TYPICAL CHARACTERISTICS
OUTPUT ENABLE TIME TO LOW LEVEL
vs
FREE-AIR TEMPERATURE
OUTPUT DISABLE TIME FROM LOW LEVEL
vs
FREE-AIR TEMPERATURE
µs
ttPZL
PLZ – Output Disable Time From Low Level – us
µs
t tPZL
PZL – Output Enable Time to Low Level – us
8
VCC ± = ± 12 V
RL = 3 kΩ
CL = 15 pF
7
6
5
4
3
2
1
0
0
20
40
60
80
100
TA – Free-Air Temperature – °C
120
3
VCC ± = ± 12 V
RL = 3 kΩ
CL = 15 pF
2.5
2
1.5
1
0.5
0
0
20
Figure 17
40
60
80
100
TA – Free-Air Temperature – °C
120
Figure 18
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
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)
SN75C198D
ACTIVE
SOIC
D
14
50
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
0 to 70
SN75C198
SN75C198N
ACTIVE
PDIP
N
14
25
RoHS & Green
NIPDAU
N / A for Pkg Type
0 to 70
SN75C198N
(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
