SN75154
QUADRUPLE LINE RECEIVER
SLLS083B NOVEMBER 1970 REVISED MAY 1995
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D
Meets or Exceeds the Requirements of
ANSI Standard EIA/TIA-232-E and ITU
Recommendation V.28
D
Input Resistance . . . 3 k
to 7 k
Over Full
EIA/TIA-232-E Voltage Range
D
Input Threshold Adjustable to Meet
Fail-Safe Requirements Without Using
External Components
D
Built-In Hysteresis for Increased Noise
Immunity
D
Inverting Output Compatible With TTL
D
Output With Active Pullup for Symmetrical
Switching Speeds
D
Standard Supply Voltages . . . 5 V or 12 V
description
The SN75154 is a monolithic low-power Schottky line receiver designed to satisfy the requirements of the
standard interface between data terminal equipment and data communication equipment as defined by ANSI
Standard EIA/TIA-232-E. Other applications are for relatively short, single-line, point-to-point data transmission
and for level translators. Operation is normally from a single 5-V supply; however, a built-in option allows
operation from a 12-V supply without the use of additional components. The output is compatible with most TTL
circuits when either supply voltage is used.
In normal operation, the threshold-control terminals are connected to the V
CC1
terminal, even if power is being
supplied via the alternate V
CC2
terminal. This provides a wide hysteresis loop, which is the difference between
the positive-going and negative-going threshold voltages. See typical characteristics. In this mode of operation,
if the input voltage goes to zero, the output voltage will remain at the low or high level as determined by the
previous input.
For fail-safe operation, the threshold-control terminals are open. This reduces the hysteresis loop by causing
the negative-going threshold voltage to be above zero. The positive-going threshold voltage remains above
zero as it is unaffected by the disposition of the threshold terminals. In the fail-safe mode, if the input voltage
goes to zero or an open-circuit condition, the output will go to the high level regardless of the previous input
condition.
The SN75154 is characterized for operation from 0
C to 70
C.
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
8
16
15
14
13
12
11
10
9
3T
2T
1T
1A
2A
3A
4A
GND
V
CC2
V
CC1
4T
1Y
2Y
3Y
4Y
R1
(TOP VIEW)
D OR N PACKAGE
For function of R1, see schematic
SN75154
QUADRUPLE LINE RECEIVER
SLLS083B NOVEMBER 1970 REVISED MAY 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic symbol
THRS ADJ
4T
4A
3T
3A
2T
2A
1T
1A
10
11
12
13
4Y
3Y
2Y
1Y
14
7
1
6
2
5
3
4
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram (positive logic)
14
7
1
6
2
5
3
4
4T
4A
3T
3A
2T
2A
1T
1A
10
11
12
13
4Y
3Y
2Y
1Y
schematic
Component values shown are nominal.
VCC2
VCC1
R1
GND
Threshold
Input
Control
Common to Four Receivers
1 of 4 Receivers
5 k
3.2 k
5.5 k
5 k
1.6 k
1.6 k
200
4.2 k
2.7 k
1 k
240
Output
9.9 k
. . . Substrate
When VCC1 is used, VCC2 may be left open or shorted to VCC1. When VCC2 is used, VCC1 must be left open
or connected to the threshold control pins.
SN75154
QUADRUPLE LINE RECEIVER
SLLS083B NOVEMBER 1970 REVISED MAY 1995
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Normal supply voltage, V
CC1
(see Note 1)
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Alternate supply voltage, V
CC2
14
V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, V
I
25 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
0
C to 70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
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: Voltage values are with respect to network GND terminal.
DISSIPATION RATING TABLE
PACKAGE
TA
25
C
DERATING FACTOR
TA = 70
C
PACKAGE
A
POWER RATING
ABOVE TA = 25
C
A
POWER RATING
D
950 mW
7.6 mW/
C
608 mW
N
1150 mW
9.2 mW/
C
736 mW
NS
625 mW
5.0 mW/
C
400 mW
recommended operating conditions
MIN
NOM
MAX
UNIT
Normal supply voltage, VCC1
4.5
5
5.5
V
Alternate supply voltage, VCC2
10.8
12
13.2
V
High-level input voltage, VIH (see Note 2)
3
15
V
Low-level input voltage, VIL (see Note 2)
15
3
V
High-level output current, IOH
400
A
Low-level output current, IOL
16
mA
Operating free-air temperature, TA
0
70
C
NOTE 2: The algebraic convention, where the less positive (more negative) limit is designated as minimum, is used in this data sheet for logic
and threshold levels only, e.g., when 0 V is the maximum, the minimum limit is a more negative voltage.
SN75154
QUADRUPLE LINE RECEIVER
SLLS083B NOVEMBER 1970 REVISED MAY 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
FIGURE
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIT
Positive-going input
Normal operation
1
0.8
2.2
3
V
VIT+
g
g
threshold voltage
Fail-safe operation
1
0.8
2.2
3
V
VIT
Negative-going input
Normal operation
1
3
1.1
0
V
VIT
g
g
g
threshold voltage
Fail-safe operation
1
0.8
1.4
3
V
Vh
Hysteresis voltage
Normal operation
1
0.8
3.3
6
V
Vhys
y
g
(VIT+ VIT)
Fail-safe operation
1
0
0.8
2.2
V
VOH
High-level output voltage
1
IOH = 400
A
2.4
3.5
V
VOL
Low-level output voltage
1
IOL = 16 mA
0.29
0.4
V
VI = 25 V to 14 V
3
5
7
VI = 14 V to 3 V
3
5
7
ri
Input resistance
2
VI = 3 V to 3 V
3
6
8
k
VI = 3 V to 14 V
3
5
7
k
VI = 14 V to 25 V
3
5
7
VI(open) Open-circuit input voltage
3
II = 0
0
0.2
2
V
IOS
Short-circuit output current
4
VCC1 = 5.5 V,
VI = 5 V
10
20
40
mA
ICC1
Supply current from VCC1
5
VCC1 = 5.5 V,
TA = 25
C
20
35
mA
ICC2
Supply current from VCC2
5
VCC2 = 13.2 V,
TA = 25
C
23
40
mA
All typical values are at VCC1 = 5 V, TA = 25
C.
Not more than one output should be shorted at a time.
switching characteristics, V
CC1
= 5 V, T
A
= 25
C, N = 10
PARAMETER
TEST
TEST CONDITIONS
MIN
TYP
MAX
UNIT
PARAMETER
FIGURE
TEST CONDITIONS
MIN
TYP
MAX
UNIT
tPLH
Propagation delay time, low- to high-level output
11
ns
tPHL
Propagation delay time, high- to low-level output
6
CL = 50 pF
RL = 390
8
ns
tTLH
Transition time, low- to high-level output
6
CL = 50 pF,
RL = 390
7
ns
tTHL
Transition time, high- to low-level output
2.2
ns
SN75154
QUADRUPLE LINE RECEIVER
SLLS083B NOVEMBER 1970 REVISED MAY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
4
3
2
1
0
4
3
2
1
0
1
2
3
4
25
25
VI Input Voltage V
VO Output V
oltage V
VCC1 = 5 V
TA = 25
C
Normal
Operation
Operation
Fail-Safe
See Note A
VIT
VIT
VIT +
V
O
OUTPUT VOLTAGE
vs
INPUT VOLTAGE
NOTE A: For normal operation, the threshold controls are connected to VCC1. For fail-safe
operation, the threshold controls are open.
Figure 1
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