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SN65ALS1176D Datasheet Preview

SN65ALS1176D Datasheet

DIFFERENTIAL BUS TRANSCEIVER

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SN65ALS1176
DIFFERENTIAL BUS TRANSCEIVER
D Meets or Exceeds the Requirements of
TIA/EIA-422-B, TIA/EIA-485-A, and ITU
Recommendations V.11 and X.27
D Recommended for PROFIBUS Applications
D Operates at Data Rates up to 35 MBaud
D Operating Temperature Range
. . . – 25°C to 85°C
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Low Supply-Current Requirement
. . . 30 mA Max
D Wide Positive and Negative Input/Output
Bus-Voltage Ranges
D Thermal-Shutdown Protection
D Driver Positive- and Negative-Current
Limiting
D Receiver Input Hysteresis
D Glitch-Free Power-Up and Power-Down
Protection
D Receiver Open-Circuit Fail-Safe Design
D Package Options Include Plastic
Small-Outline (D) Package and (P) DIPs
SLLS295A – APRIL 1998 – REVISED DECEMBER 1999
D† OR P PACKAGE
(TOP VIEW)
R1
RE 2
DE 3
D4
8 VCC
7B
6A
5 GND
The D package is available taped and
reeled. Add the suffix R to the device
type (e.g., SN65ALS1176DR).
description
The SN65ALS1176 differential bus transceiver is designed for bidirectional data communication on multipoint
bus transmission lines. It is designed for balanced transmission lines and meets TIA/EIA-422-B, TIA/EIA-485-A,
and ITU Recommendations V.11 and X.27.
The SN65ALS1176 combines 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, that can be connected together externally to function as a direction control. The driver differential
outputs and the receiver differential inputs are connected internally to form a differential input/output (I/O) bus
port that is designed to offer minimum loading to the bus when 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.
The SN65ALS1176 is characterized for operation from – 25°C to 85°C.
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.
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.
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 1999, Texas Instruments Incorporated
1




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SN65ALS1176D Datasheet Preview

SN65ALS1176D Datasheet

DIFFERENTIAL BUS TRANSCEIVER

No Preview Available !

SN65ALS1176
DIFFERENTIAL BUS TRANSCEIVER
SLLS295A – APRIL 1998 – REVISED DECEMBER 1999
Function Tables
INPUT
D
H
L
X
DRIVERS
ENABLE
DE
H
H
L
OUTPUTS
A
B
H
L
L
H
Z
Z
logic symbol
RECEIVER
DIFFERENTIAL INPUTS
A–B
ENABLE OUTPUT
RE
R
VID 0.2 V
L
H
– 0.2 V < VID < 0.2 V
L
?
VID – 0.2 V
L
L
X
H
Z
Inputs open
L
H
H = high level, L = low level, X = irrelevant,
? = Indeterminate, Z = high impedance (off)
logic diagram (positive logic)
3
DE
EN1
2
RE
EN2
4
D
1
R
1
1
2
6
A
7
B
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
3
DE
4
D
2
RE
1
R
6
A
Bus
7
B
2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265


Part Number SN65ALS1176D
Description DIFFERENTIAL BUS TRANSCEIVER
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