Texas Instruments SN65LBC173D, SN65LBC173DR, SN65LBC173N, SN75LBC173D, SN75LBC173DR Datasheet
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SN65LBC173, SN75LBC173
QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVERS
SLLS170C – OCTOBER 1993 – REVISED JANUARY 2000
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Meets or Exceeds the Requirements of
ANSI Standards EIA/TIA-422-B,
EIA/TIA-423-B, RS-485, and ITU
Recommendations V.10 and V.11.
D
Designed to Operate With Pulse Durations
as Short as 20 ns
D
Designed for Multipoint Bus Transmission
on Long Bus Lines in Noisy Environments
D
Input Sensitivity . . . ±200 mV
D
Low-Power Consumption . . . 20 mA Max
D
Open-Circuit Fail-Safe Design
D
Pin Compatible With SN75173 and
AM26LS32
description
The SN65LBC173 and SN75LBC173 are monolithic quadruple differential line receivers with 3-state outputs.
Both are designed to meet the requirements of the ANSI standards EIA/TIA-422-B, EIA/TIA-423-B, RS-485,
and ITU Recommendations V .10 and V .1 1. The devices are optimized for balanced multipoint bus transmission
at data rates up to and exceeding 10 million bits per second. The four receivers share two ORed enable inputs,
one active when high, the other active when low.
Each receiver features high input impedance, input hysteresis for increased noise immunity, and input
sensitivity of ±200 mV over a common-mode input voltage range of 12 V to –7 V . Fail-safe design ensures that
if the inputs are open circuited, the output is always high. Both devices are designed using the T exas Instruments
proprietary LinBiCMOS technology that provides low power consumption, high switching speeds, and
robustness.
These devices offer optimum performance when used with the SN75LBC172 or SN75LBC174 quadruple line
drivers. The SN65LBC173 and SN75LBC173 are available in the 16-pin DIP (N) and SOIC (D) packages.
The SN65LBC173 is characterized over the industrial temperature range of –40°C to 85°C. The SN75LBC173
is characterized for operation over the commercial temperature range of 0°C to 70°C.
FUNCTION TABLE
(each receiver)
DIFFERENTIAL INPUTS
ENABLES
OUTPUT
A–B
G G
Y
VID ≥ 0.2 V
H
X
X
L
H
H
–0.2 V < VID < 0.2 V
H
X
X
L
?
?
VID ≤ –0.2 V
H
X
X
L
L
L
X L H Z
Open Circuit
H
X
X
L
H
H
H = high level, L = low level, X = irrelevant,
Z = high impedance (off), ? = indeterminate
LinBiCMOS is a trademark of Texas Instruments Incorporated.
Copyright 2000, 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.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1B
1A
1Y
G
2Y
2A
2B
GND
V
CC
4B
4A
4Y
G
3Y
3A
3B
D OR N PACKAGE
(TOP VIEW)
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.
SN65LBC173, SN75LBC173
QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVERS
SLLS170C – OCTOBER 1993 – REVISED JANUARY 2000
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
logic symbol
†
4B
4A
3B
3A
2B
2A
1B
1A
G
G
4Y
3Y
2Y
1Y
13
11
5
3
15
14
9
10
7
6
1
2
12
4
≥ 1
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram (positive logic)
4Y
3Y
2Y
1Y
13
11
5
3
15
14
9
10
7
6
1
2
12
4
4B
4A
3B
3A
2B
2A
1B
1A
G
G
schematics of inputs and outputs
TYPICAL OF ALL OUTPUTS
V
CC
Y Output
EQUIVALENT OF A AND B INPUTS
12 kΩ
3 kΩ
18 kΩ
1 kΩ
V
CC
Input
100 kΩ
A Only
100 kΩ
B Only
Input
V
CC
Receiver
TYPICAL OF G AND G INPUTS
SN65LBC173, SN75LBC173
QUADRUPLE LOW-POWER DIFFERENTIAL LINE RECEIVERS
SLLS170C – OCTOBER 1993 – REVISED JANUARY 2000
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage range, VCC (see Note 1) –0.3 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI (A or B inputs) ±25 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, VID (see Note 2) ±25 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range at Y, G, G
–0.3 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN65LBC173 –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN75LBC173 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.
NOTES: 1. All voltage values are with respect to GND.
2. Differential input voltage is measured at the noninverting input with respect to the corresponding inverting input.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 85°C
POWER RATING
D 1100 mW 8.7 mW/°C 708 mW 578 mW
N 1150 mW 9.2 mW/°C 736 mW 598 mW
recommended operating conditions
MIN NOM MAX UNIT
Supply voltage, V
CC
4.75 5 5.25 V
Common-mode input voltage, V
IC
–7 12 V
Differential input voltage, V
ID
±6 V
High-level input voltage, V
IH
p
2 V
Low-level input voltage, V
IL
G inputs
0.8 V
High-level output current, I
OH
–8 mA
Low-level output current, I
OL
16 mA
p
p
SN65LBC173 –40 85
°
Operating free-air temperature, T
A
SN75LBC173 0 70
°C
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