Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

SP1481E Datasheet(PDF) 6 Page - Sipex Corporation

Part # SP1481E
Description  짹15kV Enhanced Low Power Half-Duplex RS-485 Transceivers
Download  11 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  SIPEX [Sipex Corporation]
Direct Link  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SP1481E Datasheet(HTML) 6 Page - Sipex Corporation

Back Button SP1481E Datasheet HTML 2Page - Sipex Corporation SP1481E Datasheet HTML 3Page - Sipex Corporation SP1481E Datasheet HTML 4Page - Sipex Corporation SP1481E Datasheet HTML 5Page - Sipex Corporation SP1481E Datasheet HTML 6Page - Sipex Corporation SP1481E Datasheet HTML 7Page - Sipex Corporation SP1481E Datasheet HTML 8Page - Sipex Corporation SP1481E Datasheet HTML 9Page - Sipex Corporation SP1481E Datasheet HTML 10Page - Sipex Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 6 / 11 page
background image
Rev:B Date: 02/26/04
SP1481E Low Power Half-Duplex RS485 Transceivers
© Copyright 2004 Sipex Corporation
6
fail-safe feature. Fail-safe guarantees that the
receiver output will be in a HIGH state when
the input is left unconnected.
SHUTDOWN MODE
The SP1481E is equipped with a Shutdown
mode. To enter the Shutdown state, both the
driver and receiver must be disabled simulta-
neously.
A logic LOW on DE (pin 3) and a logic HIGH on
RE (pin 2) will put the SP1481E into Shutdown
mode. In Shutdown, supply current will drop to
typically 1
µA.
ESD TOLERANCE
The SP1481E incorporates ruggedized ESD
cells on all driver output and receiver input pins.
The ESD structure is improved over our previ-
ous family for more rugged applications and
environments sensitive to electro-static dis-
charges and associated transients. The improved
ESD tolerance is at least
±15kV without damage
or latch-up.
There are different methods of ESD testing
applied:
a) MIL-STD-883, Method 3015.7
b) IEC1000-4-2 Air-Discharge
c) IEC1000-4-2 Direct Contact
The Human Body Model has been the generally
accepted ESD testing method for semiconductors.
This method is also specified in MIL-STD-883,
Method 3015.7 for ESD testing. The premise of
this ESD test is to simulate the human body’s
potential to store electro-static energy and
discharge it to an integrated circuit.
The
simulation is performed by using a test model as
shown in Figure 7.
This method will test the
IC’s capability to withstand an ESD transient
during normal handling such as in manufacturing
areas where the ICs tend to be handled frequently.
The IEC-1000-4-2, formerly IEC801-2, is
generally used for testing ESD on equipment and
systems. For system manufacturers, they must
guarantee a certain amount of ESD protection
since the system itself is exposed to the outside
environment and human presence. The premise
with IEC1000-4-2 is that the system is required
DESCRIPTION
The SP1481E is half-duplex differential trans-
ceivers that meet the requirements of RS-485
and RS-422. Fabricated with a Sipex proprietary
BiCMOS process, this product requires a frac-
tion of the power of older bipolar designs.
The RS-485 standard is ideal for multi-drop
applications and for long-distance interfaces.
RS-485 allows up to 32 drivers and 32 receivers
to be connected to a data bus, making it an ideal
choice for multi-drop applications. Since the
cabling can be as long as 4,000 feet, RS-485
transceivers are equipped with a wide (-7V to
+12V) common mode range to accommodate
ground potential differences. Because RS-485 is
a differential interface, data is virtually immune
to noise in the transmission line.
Drivers
The driver outputs of the SP1481E are differen-
tial outputs meeting the RS-485 and RS-422
standards. The typical voltage output swing with
no load will be 0 Volts to +5 Volts. With worst
case loading of 54
Ω across the differential out-
puts, the drivers can maintain greater than 1.5V
voltage levels. The drivers of the SP1481E have
an enable control line which is active HIGH. A
logic HIGH on DE (pin 3) will enable the differ-
ential driver outputs. A logic LOW on DE (pin
3) will tri-state the driver outputs.
The transmitters of the SP1481E will operate up
to at least 20Mbps.
Receivers
The SP1481E receivers have differential inputs
with an input sensitivity as low as
±200mV.
Input impedance of the receivers is typically
15k
Ω (12kΩ minimum). A wide common mode
range of -7V to +12V allows for large ground
potential differences between systems. The re-
ceivers of the SP1485E have a tri-state enable
control pin. A logic LOW on RE (pin 2) will
enable the receiver, a logic HIGH on RE (pin 2)
will disable the receiver.
The receiver for the SP1481E will operate up to
at least 20Mbps. The receiver for each of the two
devices
is
equipped
with
the


Similar Part No. - SP1481E

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
SP1481E EXAR-SP1481E Datasheet
576Kb / 10P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
SP1481ECN-L EXAR-SP1481ECN-L Datasheet
576Kb / 10P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
SP1481ECN-L/TR EXAR-SP1481ECN-L/TR Datasheet
576Kb / 10P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
SP1481ECNL EXAR-SP1481ECNL Datasheet
158Kb / 1P
   Flammability rating of UL 94?륷0
SP1481EEN-L EXAR-SP1481EEN-L Datasheet
576Kb / 10P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
More results

Similar Description - SP1481E

ManufacturerPart #DatasheetDescription
logo
Sipex Corporation
SP481E SIPEX-SP481E Datasheet
519Kb / 11P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
logo
Exar Corporation
SP481E EXAR-SP481E Datasheet
618Kb / 12P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
logo
Sipex Corporation
SP481E SIPEX-SP481E_07 Datasheet
712Kb / 11P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
SP481E SIPEX-SP481E Datasheet
100Kb / 11P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
logo
Exar Corporation
SP1481E EXAR-SP1481E Datasheet
576Kb / 10P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
logo
Sipex Corporation
SP1485E SIPEX-SP1485E Datasheet
78Kb / 11P
   Enhanced Low Power Half-Duplex RS-485 Transceivers
logo
Exar Corporation
SP483 EXAR-SP483_17 Datasheet
633Kb / 13P
   Low Power Half-Duplex RS-485 Transceivers
logo
Sipex Corporation
SP481 SIPEX-SP481 Datasheet
100Kb / 10P
   Low Power Half-Duplex RS-485 Transceivers
SP481 SIPEX-SP481 Datasheet
78Kb / 10P
   Low Power Half-Duplex RS-485 Transceivers
logo
Exar Corporation
SP485EN-L EXAR-SP485EN-L Datasheet
564Kb / 11P
   Low Power Half-Duplex RS-485 Transceivers
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com