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ꢉꢊ ꢋꢋ ꢌꢍ ꢌꢁꢎ ꢊꢏ ꢐꢈꢆ ꢑꢀꢈ ꢎꢍꢏ ꢁꢀꢒ ꢌꢊ ꢓ ꢌꢍ ꢀ
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SLLS061 − D3407, JANUARY 1990
D OR P PACKAGE
(TOP VIEW)
• Bidirectional Transceiver
• Designed for Multipoint Transmission in
Noisy Environments Such as Automotive
Applications
R
RE
D
V
A
B
1
2
3
4
8
7
6
5
CC
• 3-State Driver and Receiver Outputs
• Individual Driver and Receiver Enables
GND
GND
• Wide Positive and Negative Input/Output
Bus Voltage Ranges
†
logic symbol
• Driver Output Capability . . . 10 mA Max
• Thermal Shutdown Protection
2
EN1
RE
• Driver Positive and Negative Current
7
6
Limiting
3
A
B
D
• Receiver Input Impedance . . . 12 kΩ Min
• Receiver Input Sensitivity . . . 200 mV
• Receiver Input Hysteresis . . . 50 mV Typ
• Operates From Single 5-V Supply
• Low Power Requirements
1
1
R
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
logic diagram (positive logic)
description
The SN65076B and SN75076B differential bus
transceivers are monolithic integrated circuits
designed for bidirectional data communication on
multipoint bus transmission lines. They are
designed for noisy environments, where a
low-impedance termination to ground is required.
3
D
2
RE
7
1
A
B
BUS
R
6
The SN65076B and SN75076B combine a differential line driver and a differential input line receiver, both of
which operate from a single 5-V power supply. The receiver has an active-low enable. The driver differential
outputs and the receiver differential inputs are connected internally to form differential input/output (I/O) bus
ports that are designed to offer minimum loading to the bus whenever the driver is disabled or
V
= 0. These ports feature wide positive and negative common-mode voltage ranges making the device
CC
suitable for party-line applications.
Function Tables
DRIVER
INPUT
RECEIVER
DIFFERENTIAL INPUTS ENABLE OUTPUT
OUTPUTS
A − B
RE
R
D
A
B
V
≥ 0.2 V
L
L
L
?
H
L
ID
−0.2 V < V < 0.2 V
H
L
{
L
{
H
ID
V
≤ −0.2 V
X
L
H
Z
†
ID
These levels assume that the
open-collector outputs (A) and
the open-emitter outputs (B) are
.
H
H = high level, L = low level, ? = indeterminate;
X = irrelevant, Z = high impedance (off)
connected to
a pullup and
pulldown resistor, respectively.
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Copyright 1990, Texas Instruments Incorporated
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ꢞ ꢢ ꢟ ꢞꢗ ꢘꢬ ꢚꢙ ꢝ ꢥꢥ ꢣꢝ ꢛ ꢝ ꢜ ꢢ ꢞ ꢢ ꢛ ꢟ ꢧ
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2−1
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