DS36276M/NOPB National Semiconductor, DS36276M/NOPB Datasheet

IC TRANSCEIVER MUTLIPOINT 8-SOIC

DS36276M/NOPB

Manufacturer Part Number
DS36276M/NOPB
Description
IC TRANSCEIVER MUTLIPOINT 8-SOIC
Manufacturer
National Semiconductor
Type
Transceiverr
Datasheet
1.DS36276MNOPB.pdf (12 pages)

Specifications of DS36276M/NOPB

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Data Rate
10Mbps
Number Of Receivers
1
Number Of Transmitters
1
Number Of Transceivers
1
Data Transmission Topology
Multidrop/Multipoint
Receiver Signal Type
Differential
Transmitter Signal Type
Differential
Single Supply Voltage (typ)
5V
Single Supply Voltage (min)
4.75V
Single Supply Voltage (max)
5.25V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Supply Current
60mA
Power Supply Requirement
Single
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
8
Package Type
SOIC N
Logic Case Style
SOIC
No. Of Pins
8
Operating Temperature Range
0°C To +70°C
Msl
MSL 1 - Unlimited
Termination Type
SMD
Transceiver Type
Multipoint
Driver Case Style
SOIC
Rohs Compliant
Yes
Filter Terminals
SMD
Data Rate Max
10Mbps
Supply Voltage Range
4.75V To 5.25V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DS36276M
*DS36276M/NOPB
DS36276M
© 1999 National Semiconductor Corporation
DS36276
FAILSAFE Multipoint Transceiver
General Description
The DS36276 FAILSAFE Multipoint Transceiver is designed
for use on bi-directional differential busses. It is compatible
with existing TIA/EIA-485 transceivers, however, it offers an
additional feature not supported by standard transceivers.
The FAILSAFE feature guarantees the receiver output to a
known state when the Interface is in the following conditions:
Floating Line, Idle Line (no active drivers), and Line Fault
conditions (open or short). The receiver output is in a HIGH
state for the following conditions: OPEN Inputs, Terminated
Inputs (50 ), and SHORTED Inputs.
FAILSAFE is a highly desirable feature when the transceiv-
ers are used with Asynchronous Controllers such as UARTs.
Connection and
Logic Diagram
TRI-STATE
®
is a registered trademark of National Semiconductor Corporation.
See NS Package Number M08A
Order Number DS36276M
DS011383-1
DS011383
Features
n FAILSAFE receiver, RO = HIGH for:
n Compatible with popular interface standards:
n Bi-Directional Transceiver
n Separate driver input, driver enable, receiver enable,
n Wide bus common mode range
n Pin compatible with: DS75176B, DS96176, DS3695 and
n Available in SOIC package
Truth Tables
Driver
Receiver
Receiver FAILSAFE
and receiver output for maximum flexibility
SN75176A and B
— OPEN inputs
— Terminated inputs
— SHORTED inputs
— TIA/EIA-485 (RS-485)
— TIA/EIA-422-A (RS-422-A)
— CCITT Recommendation V.11
— Designed for multipoint transmission
— (−7V to +12V)
RE
RE
X
X
X
RE
H
L
L
H
L
L
Inputs
DE
H
H
L
DE
DE
X
L
L
X
Inputs
L
L
Inputs
DI
H
X
L
SHORTED
−500 mV
OPEN
RI–RI
RI–RI
0V
X
X
DO/RI
H
Z
L
Outputs
www.national.com
Output
Output
RO
RO
DO /RI
July 1998
H
H
H
Z
L
Z
H
L
Z

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DS36276M/NOPB Summary of contents

Page 1

... Asynchronous Controllers such as UARTs. Connection and Logic Diagram DS011383-1 Order Number DS36276M See NS Package Number M08A TRI-STATE ® registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS011383 Features n FAILSAFE receiver HIGH for: — OPEN inputs — Terminated inputs — SHORTED inputs n Compatible with popular interface standards: — ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Input Voltage (DE and DI) Driver Output Voltage/ Receiver Input Voltage Receiver Output Voltage (RO) Maximum Package Power Dissipation @ M Package (derate 5.8 mW/˚C above +25˚ ...

Page 3

Electrical Characteristics Over recommended Supply Voltage and Operating Temperature ranges, unless otherwise specified. Symbol Parameter DEVICE CHARACTERISTICS V High Level Input Voltage IH V Low Level Input Voltage IL I High Level Input Current IH I Low Level Input Current ...

Page 4

Parameter Measurement Information FIGURE 4. Driver Differential Propagation Delay and Transition Time Test Circuit www.national.com DS011383-2 FIGURE 1. Driver V and V Test Circuit T1 OS FIGURE 2. Driver V and V Test Circuit OH OL FIGURE 3. Driver Short ...

Page 5

Parameter Measurement Information FIGURE 5. Driver Differential Propagation Delays and Transition Times FIGURE 6. Driver Propagation Delay Test Circuit for for FIGURE 8. Driver TRl-STATE Test Circuit (t ...

Page 6

Parameter Measurement Information FIGURE 9. Driver TRI-STATE Delays ( for for FIGURE 10. Driver TRI-STATE Test Circuit (t FIGURE 11. Driver TRl-STATE Delays (t FIGURE 13. Receiver Propagation ...

Page 7

Parameter Measurement Information FIGURE 14. Receiver Propagation Delays FIGURE 15. Receiver TRI-STATE Delay Test Circuit DS011383-17 S1 1.5V S2 OPEN S3 CLOSED S1 1.5V S2 CLOSED S3 CLOSED Note 8: The input pulse is supplied by a generator having the ...

Page 8

Typical Performance Characteristics Differential Output Voltage vs Output Current Driver Driver www.national.com Differential Output Voltage vs Output Current DS011383-21 Driver ...

Page 9

Typical Performance Characteristics Receiver Receiver Supply Currrent vs Supply Voltage (Continued) Receiver Temperature OH OH DS011383-27 Receiver ...

Page 10

Typical Performance Characteristics Voltage Output vs Voltage Input (Hysteresis) www.national.com (Continued) DS011383-33 10 ...

Page 11

11 ...

Page 12

... National Semiconductor Asia Pacific Customer Fax: +49 (0) 1 80-530 85 86 Response Group Email: europe.support@nsc.com Tel: 65-2544466 Fax: 65-2504466 Tel: +49 (0) 1 80-532 78 32 Email: sea.support@nsc.com Tel: +49 (0) 1 80-534 16 80 National Semiconductor Japan Ltd. Tel: 81-3-5639-7560 Fax: 81-3-5639-7507 ...

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