SN75ALS1711 Datasheet, PDF (1/10 Pages) Texas Instruments – TRIPLE DIFFERENTIAL BUS TRANSCEIVER

SN75ALS1711
TRIPLE DIFFERENTIAL BUS TRANSCEIVER
SLLS117B – APRIL 1991 – REVISED MAY 1995
D Three Bidirectional Transceivers
D Driver/Receiver Meets or Exceeds the
Requirements of ANSI Standard RS-485
and ANSI Standard X3.131-1986 (SCSI)
D High-Speed Advanced Low-Power Schottky
Circuitry
D Designed for Multipoint Transmission on
Long Bus Lines in Noisy Environments
D Wide Positive and Negative Input/Output
Bus Voltages Ranges . . . – 7 V to 12 V
D Driver Output Capacity . . . ± 60 mA
DW OR N PACKAGE
(TOP VIEW)
1R ₁
1DE 2
1D 3
GND 4
GND 5
2R 6
2DE 7
2D 8
3R 9
3DE 10
20 ^1B
19 ^1A
18 ^RE
17 ^CDE
16 ^V_CC
15 ^2B
14 ^2A
13 3B
12 3A
11 3D
D Driver Positive and Negative Current
Limiting
D Thermal Shutdown Protection
D Receiver Input Sensitivity . . . ± 200 mV Max
D Receiver Input Impedance . . . 12 kΩ Min
D Receiver Input Hysteresis . . . 50 mV Typ
Function Tables
INPUT
D
H
L
X
X
EACH DRIVER
ENABLES
DE CDE
H
H
H
H
L
X
X
L
OUTPUTS
A
B
H
L
L
H
Z
Z
Z
Z
D Operates From a Single 5-V Supply
EACH RECEIVER
D Low Supply-Current Requirements
72 mA Max
D Glitch-Free Power-up and Power-Down
Protection
DIFFERENTIAL INPUTS
A–B
VID ≥ 0.2 V
VID = – 0.2 V to 0.2 V
VID ≤ – 0.2 V
X
ENABLE
RE
L
L
L
H
OUTPUT
R
H
?
L
Z
description
The SN75ALS1711 triple differential bus
Open
L
H
H = high level, L = low-level, ? = indeterminate,
X = irrelevant, Z = high impedance (off)
transceiver is a monolithic integrated circuit
designed for bidirectional data communication on multipoint bus transmission lines. It is designed for balanced
transmission lines and meets ANSI Standard RS-485 and ANSI Standard X3.131-1986 (SCSI).
The SN75ALS1711 operates from a single 5-V power supply. The drivers and receivers have individual
active-high and active-low enables, respectively, which can be externally connected together to function as a
direction control. The driver differential output and the receiver differential input pairs are connected internally
to form differential input/output (I/O) bus ports that are designed to offer minimum loading to the bus when the
driver is disabled or V_CC is at 0. These ports feature wide positive and negative common-mode voltage ranges
making the device suitable for party-line applications.
The SN75ALS1711 is characterized for operation from 0°C to 70°C.
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.
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Copyright © 1995, Texas Instruments Incorporated
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