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SN75LBC173 Datasheet Preview

SN75LBC173 Datasheet

Quadruple Low-Power Differential Line Receivers

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SN65LBC173, SN75LBC173
QUADRUPLE LOWĆPOWER DIFFERENTIAL LINE RECEIVERS
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
SLLS170E − OCTOBER 1993 − REVISED AUGUST 2000
D OR N PACKAGE
(TOP VIEW)
1B 1
1A 2
1Y 3
G4
2Y 5
2A 6
2B 7
GND 8
16 VCC
15 4B
14 4A
13 4Y
12 G
11 3Y
10 3A
9 3B
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.11. 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 Texas Instruments
proprietary LinBiCMOStechnology 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
A−B
ENABLES
G
G
OUTPUT
Y
VID 0.2 V
H
X
H
X
L
H
−0.2 V < VID < 0.2 V
H
X
X
L
?
?
VID − 0.2 V
H
X
L
X
L
L
X
L
H
Z
Open Circuit
H
X
H
X
L
H
H = high level, L = low level, X = irrelevant,
Z = high impedance (off), ? = indeterminate
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.
LinBiCMOS is a trademark of Texas Instruments.
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.
Copyright 2000, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
1




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SN75LBC173 Datasheet Preview

SN75LBC173 Datasheet

Quadruple Low-Power Differential Line Receivers

No Preview Available !

SN65LBC173, SN75LBC173
QUADRUPLE LOWĆPOWER DIFFERENTIAL LINE RECEIVERS
SLLS170E − OCTOBER 1993 − REVISED AUGUST 2000
logic symbol
4
G
1
12
G
2
1A
1
1B
6
2A
7
2B
10
3A
9
3B
14
4A
15
4B
3
1Y
5
2Y
11
3Y
13
4Y
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
logic diagram (positive logic)
4
G
12
G
2
1A
1
1B
3
1Y
6
2A
7
2B
5
2Y
10
3A
9
3B
11
3Y
14
4A
15
4B
13
4Y
schematics of inputs and outputs
EQUIVALENT OF A AND B INPUTS
VCC
100 k
(A Only)
Input
18 k
3 k
Receiver
100 k
(B Only)
12 k
1 k
TYPICAL OF ALL OUTPUTS
VCC
TYPICAL OF G AND G INPUTS
VCC
Input
Y Output
Output
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN75LBC173
Description Quadruple Low-Power Differential Line Receivers
Maker etcTI
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SN75LBC173 Datasheet PDF






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