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What is XR5488E?

This electronic component, produced by the manufacturer "Exar", performs the same function as "ULTRA HIGH SPEED RS-485/RS-422 PROFIBUS TRANSCEIVERS".


XR5488E Datasheet PDF - Exar

Part Number XR5488E
Description ULTRA HIGH SPEED RS-485/RS-422 PROFIBUS TRANSCEIVERS
Manufacturers Exar 
Logo Exar Logo 


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AUGUST 2011
XR5486E-5488E
ULTRA HIGH SPEED RS-485/RS-422 PROFIBUS TRANSCEIVERS WITH 1/8TH UNIT LOAD
AND +/-15KV ESD-PROTECTION
REV. 1.0.2
GENERAL DESCRIPTION
FEATURES
The XR5486E-XR5488E family of RS-485 devices
are designed for reliable, bidirectional communication
on multipoint bus transmission lines. Each device
contains one differential driver and one differential
receiver. XR5488E is a half-duplex device while the
other part numbers are full-duplex. All devices comply
with TIA/EIA-485 and TIA/EIA-422 standards. Lead-
free and RoHS compliant packages are available for
all models.
These devices are ruggedized for use in harsh
operating conditions over the entire common mode
voltage range from -7V to +12V. Receivers are
specially designed to fail-safe to a logic high output
state if the inputs are left un-driven or shorted. All RS-
485 bus-pins are protected against severe ESD
events up to +/-15kV Air-Gap (IEC-61000-4-2), up to
+/-8kV Contact Discharge (IEC-61000-4-2) and up to
+/-15kV Human body Model. Drivers are protected
from excess current flow caused by bus contention or
output short-circuits by both an internal current limit
and a thermal-overload shutdown. Devices are rated
for Industrial (-40°C to +85°C) operating
temperatures. Receivers have exceptionally high
input impedance, which places only 1/8th the
standard load on a bus. Up to 256 transceivers may
coexist while preserving full signal margin.
All devices operate from a single 5.0V power supply
and draw negligible quiescent power. All versions
except the XR5487E may independently enable and
disable their driver and receiver and enter a low
power shutdown mode if both driver and receiver are
disabled. All outputs maintain high impedance in
shutdown or when powered-off.
5.0V Single Supply Operation
High Speed up to 52Mbps
Advanced Fail-safe Receiver Inputs
Hot Swap glitch protection on control inputs
Robust ESD Protection for RS-485 pins
+/-15kV Air-Gap Discharge
+/-15kV Human Body Model
+/-8kV Contact Discharge
1/8th Unit Load, 256 transceivers on bus
Driver short circuit current limit and thermal
shutdown for overload protection
Low Current 1μA shutdown mode (except
XR5487E)
Industry standard package footprints
TYPICAL APPLICATIONS
Motor Control
Building Automation
Security Systems
Remote Utility Meter Reading
FIGURE 1. TYPICAL APPLICATION CIRCUIT
DE
XR5488E
B
DI RT
A
RO
B
STUB
A
DE
XR5488E
B
RT
A
BA
DI
RO
RE
DE
RE DE
RE
RE
DI RO
DI RO
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com

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XR5488E equivalent
XR5486E-5488E
REV. 1.0.2
ULTRA HIGH SPEED RS-485/RS-422 PROFIBUS TRANSCEIVERS WITH 1/8TH UNIT LOAD AND +/-15KV ESD-PROTECTION
UNLESS OTHERWISE NOTED: VCC = +5.0V +/-0.25V WITH TA FROM -40OC TO +85OC. TYPICAL VALUES ARE AT VCC
= +5.0V AND 25OC.
SYMBOL
PARAMETERS
MIN TYP MAX UNITS
CONDITIONS
VOC
Driver Common Mode Output
Voltage steady state
3.0 V Figure 3
ΔVOC
Change in Magnitude of Common
Mode Output Voltage
-0.2
0.2 V Figure 3, See note 1
IOSD
Driver Short Circuit Current Limit
-250
250 mA -7V VOUT +12V, Figure 5
IOL
Output Leakage Current (Full-
Duplex versions, Y and Z pins)
-75
125
μA
DE = 0V, RE = 0V, Vcc = 0V or 5V,
-7V VOUT +12V
VIH 2.0
Logic Input Thresholds (DI, DE, RE)
VIL
V Logic Input High
0.8 V Logic Input Low
VHYS
Driver Input Hysteresis
100 mV TA = 25°C
IIN Logic Input Current (DI, DE and RE) -1
1
μA
0V IN +VCC, after first transi-
tion
DRIVER AC CHARACTERISTICS
freq Data Signaling Rate
52
Mbps
1/tUI, Duty Cycle 40 to 60%, Fig-
ure 4, CL = 50pF, RL = 54Ω.
tPLH
Driver Propagation Delay (Low to
High)
4
25 ns CL = 50pF, RL = 54Ω,
Figures 6 and 7
tPHL
Driver Propagation Delay (High to
Low)
4
25 ns CL = 50pF, RL = 54Ω,
Figures 6 and 7
tR Driver Rise Time
2 8 ns CL = 50pF, RL = 54Ω,
Figures 6 and 7
tF Driver Fall time
2 8 ns CL = 50pF, RL = 54Ω,
Figures 6 and 7
|tPLH-tPHL| Differential Pulse Skew
tZH Driver Enable to Output High
tZL Driver Enable to Output Low
tHZ Driver Disable from Output High
tLZ Driver Disable from Output Low
tZV Shutdown to Driver Output Valid
+/-3 ns Figures 6 and 7
60
ns
CL = 50pF, RL = 500Ω, Figures 8
and 9
60
ns
CL = 50pF, RL = 500Ω, Figures 10
and 11
60
ns
CL = 50pF, RL = 500Ω, Figures 8
and 9
60
ns
CL = 50pF, RL = 500Ω, Figures 10
and 11
1 μs CL = 50pF, RL = 500Ω
tSHDN
Time to Shutdown
50 200 600 ns Notes 2, 3 and 4
5


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Featured Datasheets

Part NumberDescriptionMFRS
XR5488EThe function is ULTRA HIGH SPEED RS-485/RS-422 PROFIBUS TRANSCEIVERS. ExarExar

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