Transceivers. SN75076B Datasheet

SN75076B Datasheet PDF


Part

SN75076B

Description

Differential Bus Transceivers

Manufacture

etcTI

Page 10 Pages
Datasheet
Download SN75076B Datasheet


SN75076B Datasheet
ą
Bidirectional Transceiver
Designed for Multipoint Transmission in
Noisy Environments Such as Automotive
Applications
3-State Driver and Receiver Outputs
Individual Driver and Receiver Enables
Wide Positive and Negative Input/Output
Bus Voltage Ranges
Driver Output Capability . . . ± 10 mA Max
Thermal Shutdown Protection
Driver Positive and Negative Current
Limiting
Receiver Input Impedance . . . 12 kMin
Receiver Input Sensitivity . . . ± 200 mV
Receiver Input Hysteresis . . . 50 mV Typ
Operates From Single 5-V Supply
Low Power Requirements
SN65076B, SN75076B
DIFFERENTIAL BUS TRANSCEIVERS
ą
SLLS061 − D3407, JANUARY 1990
D OR P PACKAGE
(TOP VIEW)
R
RE
D
GND
1
2
3
4
8 VCC
7A
6B
5 GND
logic symbol
2
RE
EN1
3
D
1
R
1
7
A
6
B
This symbol is in accordance with ANSI/IEEE Std 91-1984 and
IEC Publication 617-12.
description
logic diagram (positive logic)
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.
D3
2
RE
1
R
7
A
6 B BUS
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
VCC = 0. These ports feature wide positive and negative common-mode voltage ranges making the device
suitable for party-line applications.
Function Tables
DRIVER
RECEIVER
INPUT
OUTPUTS
DIFFERENTIAL INPUTS ENABLE OUTPUT
D AB
A−B
RE R
H HL
L L{ H{
VID 0.2 V
−0.2 V < VID < 0.2 V
L
L
L
?
These levels assume that the
VID −0.2 V
LH
. open-collector outputs (A) and
X HZ
the open-emitter outputs (B) are
connected to a pullup and
pulldown resistor, respectively.
H = high level, L = low level, ? = indeterminate;
X = irrelevant, Z = high impedance (off)
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
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001
Copyright 1990, Texas Instruments Incorporated
2−1

SN75076B Datasheet
SN65076B, SN75076B
DIFFERENTIAL BUS TRANSCEIVERS
ąą
SLLS061 − D3407, JANUARY 1990
ą
description (continued)
The driver is designed to handle loads up to 10 mA of sink and source current. The driver features positive- and
negative-current limiting and thermal shutdown for protection from line fault conditions. Thermal shutdown is
designed to occur at a junction temperature of approximately 150°C in the P package and 170°C in the D
package. The receiver features a minimum input impedance of 12 k, an input sensitivity of ± 200 mV, and a
typical input hysteresis of 50 mV.
The SN65076B is characterized for operation from − 40°C to 105°C and the SN75076B is characterized for
operation from 0°C to 70°C.
VCC
EQUIVALENT OF EACH INPUT
Req
Input
TYPICAL OF A I/O PORT
VCC
16.8 k
NOM
960
NOM
960
NOM
Driver Input: Req = 3 kNOM
TYPICAL OF B I/O PORT
VCC
16.8 k
NOM
960
NOM
960
NOM
Input/Output
Port
GND
TYPICAL OF RECEIVER OUTPUT
VCC
85
NOM
Output
Input/Output
Port
GND
2−2
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001


Features Datasheet pdf ą • Bidirectional Transceiver • Des igned for Multipoint Transmission in No isy Environments Such as Automotive App lications • 3-State Driver and Receiv er Outputs • Individual Driver and Re ceiver Enables • Wide Positive and Ne gative Input/Output Bus Voltage Ranges • Driver Output Capability . . . ± 1 0 mA Max • Thermal Shutdown Protectio n • Driver Positive and Negative Curr ent Limiting • Receiver Input Impedan ce . . . 12 kΩ Min • Receiver Input Sensitivity . . . ± 200 mV • Receiv er Input Hysteresis . . . 50 mV Typ • Operates From Single 5-V Supply • Lo w Power Requirements SN65076B, SN75076 B DIFFERENTIAL BUS TRANSCEIVERS ą SLLS 061 − D3407, JANUARY 1990 D OR P PACK AGE (TOP VIEW) R RE D GND 1 2 3 4 8 VCC 7A 6B 5 GND logic symbol† 2 RE EN1 3 D 1 R 1 7 A 6 B † This sym bol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. d escription logic diagram (positive log ic) The SN65076B and SN75076B differential bus transceivers are monolithic integrated circuits desig.
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