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SN75LBC176A Datasheet Preview

SN75LBC176A Datasheet

Differential Bus Transceivers

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D Designed for Signaling RatesUp to 30
Mbps
D Bus-Pin ESD Protection Exceeds 12 kV
HBM
D Compatible With ANSI Standard
TIA/EIA-485-A and ISO 8482:1987(E)
D Low Skew
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Very Low Disabled Supply-Current
Requirements . . . 700 µA Maximum
D Common Mode Voltage Range of −7 V
to 12 V
D Thermal-Shutdown Protection
D Driver Positive and Negative Current
Limiting
D Open-Circuit Failsafe Receiver Design
D Receiver Input Sensitivity . . . ± 200 mV Max
D Receiver Input Hysteresis . . . 50 mV Typ
D Glitch-Free Power-Up and Power-Down
Protection
D Available in Q-Temp Automotive
High Reliability Automotive Applications
Configuration Control / Print Support
Qualification to Automotive Standards
description
The SN65LBC176A, SN65LBC176AQ, and
SN75LBC176A differential bus transceivers are
monolithic, integrated circuits designed for
bidirectional data communication on multipoint
bus-transmission lines. They are designed for
balanced transmission lines and are compatible
with ANSI standard TIA/EIA-485-A and ISO 8482.
The A version offers improved switching perfor-
mance over its predecessors without sacrificing
significantly more power.
SN65LBC176A, SN75LBC176A
DIFFERENTIAL BUS TRANSCEIVERS
ą
SLLS376D− MAY 2000 − REVISED JULY 2008
SN65LBC176AQD (Marked as B176AQ)
SN65LBC176AD (Marked as BL176A)
SN65LBC176AP (Marked as 65LBC176A)
SN75LBC176AD (Marked as LB176A)
SN75LBC176AP (Marked as 75LBC176A)
(TOP VIEW)
R1
RE 2
DE 3
D4
8 VCC
7B
6A
5 GND
logic diagram (positive logic)
3
DE
4
D
2
RE
1
R
6
A
7B
Bus
Function Tables
INPUT
D
H
L
X
Open
DRIVER
ENABLE
DE
H
H
L
H
OUTPUTS
AB
HL
LH
ZZ
HL
RECEIVER
DIFFERENTIAL INPUTS
VA −VB
VID 0.2 V
−0.2 V < VID < 0.2 V
VID − 0.2 V
X
Open
ENABLE
RE
L
L
L
H
L
OUTPUT
R
H
?
L
Z
H
H = high level, L = low level, ? = indeterminate,
X = irrelevant, Z = high impedance (off)
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.
Signaling rate by TIA/EIA-485-A definition restrict transition times to 30% of the bit duration, and much higher signaling rates may be achieved
using a different criteria (see TYPICAL CHARACTERISTICS section).
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 2000−2008, Texas Instruments Incorporated
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443
1




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SN75LBC176A Datasheet Preview

SN75LBC176A Datasheet

Differential Bus Transceivers

No Preview Available !

SN65LBC176A, SN75LBC176A
ą
DIFFERENTIAL BUS TRANSCEIVERS
ą
SLLS376D− MAY 2000 − REVISED JULY 2008
description (continued)
The SN65LBC176A, SN65LBC176AQ, and SN75LBC176A combine a 3-state, differential line driver and a
differential input line receiver, both of which operate from a single 5-V power supply. The driver and receiver
have active-high and active-low enables, respectively, which can externally connect together to function as a
direction control. The driver differential outputs and the receiver differential inputs connect internally to form a
differential input/output (I/O) bus port that is designed to offer minimum loading to the bus whenever the driver
is disabled or VCC = 0. This port features wide positive and negative common-mode voltage ranges, making
the device suitable for party-line applications. Very low device supply current can be achieved by disabling the
driver and the receiver.
TA
0°C to 70°C
−40°C to 85°C
−40°C to 125°C
AVAILABLE OPTIONS
PACKAGE
SMALL OUTLINE
(D)
PLASTIC
DUAL-IN-LINE
SN75LBC176AD
SN75LBC176AP
SN65LBC176AD
SN65LBC176AP
SN65LBC176AQD
schematics of inputs and outputs
D, DE, and RE Inputs
Input
100 k
1 k
VCC
Input
A Input
VCC
16 V 100 k
18 k
4 k
8V
16 V
4 k
VCC
R Output
40
Output Input
8V
B Input
VCC
16 V
18 k
4 k
16 V
100 k
4 k
VCC
A and B Outputs
16 V
Output
16 V
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77251−1443


Part Number SN75LBC176A
Description Differential Bus Transceivers
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