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ISL3179EFRZ Arkusz danych(PDF) 1 Page - Intersil Corporation

Numer części ISL3179EFRZ
Szczegółowy opis  High ESD Protected, 125°C, 40Mbps, 3.3V, Full Fail-Safe, RS-485/RS-422 Transceivers
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Producent  INTERSIL [Intersil Corporation]
Strona internetowa  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL3179EFRZ Arkusz danych(HTML) 1 Page - Intersil Corporation

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DATASHEET
High ESD Protected, +125°C, 40Mbps, 3.3V, Full
Fail-Safe, RS-485/RS-422 Transceivers
ISL3179E, ISL3180E
Intersil’s ISL3179E and ISL3180E are high ESD Protected (see
Table 2), 3.3V powered, single transceivers that meet both the
RS-485 and RS-422 standards for balanced communication.
Each device has low bus currents (+220µA/-150µA), so it
presents a “1/5 unit load” to the RS-485 bus. This allows up to
160 transceivers on the network without violating the RS-485
specification’s 32 unit load maximum, and without using
repeaters.
Receiver (Rx) inputs feature a “full fail-safe” design, which
ensures a logic high Rx output if Rx inputs are floating,
shorted, or terminated but undriven.
The ISL3180E is configured for full duplex applications. The
ISL3179E half duplex version multiplexes the Rx inputs and Tx
outputs to allow a transceiver with an output disable function
in 8 Ld packages.
Hot plug circuitry ensures that the Tx and Rx outputs remain in
a high impedance state while the power supply stabilizes.
Applications
• Motor controller/position encoder systems
• Factory automation
• Field bus networks
•Security networks
• Building environmental control systems
• Industrial/process control networks
Features
• High ESD protection on RS-485 I/O pins
- ISL3179E. . . . . . . . . . . . . . . . . . . . . . . . . ±16.5kV IEC61000
- ISL3180E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±12kV HBM
- Class 3 HBM level on all other pins (ISL3179E) . . . . . >9kV
• Specified for +125°C operation
• High data rates. . . . . . . . . . . . . . . . . . . . . . . . . . . up to 40Mbps
• 5V tolerant logic inputs
• 1/5 unit load allows up to 160 devices on the bus
• Full fail-safe (open, shorted, terminated/undriven) receiver
• Hot plug - Tx and Rx outputs remain three-state during
power-up
• Low quiescent current . . . . . . . . . . . . . . . . . . . . . . . 4mA (max)
• Low current shutdown mode . . . . . . . . . . . . . . . . . 1µA (max)
• -7V to +12V common-mode input voltage range
• Three-state Rx and Tx outputs
• 16/16.5ns (max) Tx/Rx propagation delays; 1.5ns (max) skew
• Operates from a single +3.3V supply (10% tolerance)
• Current limiting and thermal shutdown for driver overload
protection
• Pb-free (RoHS compliant)
TABLE 1. KEY DIFFERENCES BETWEEN HIGH-SPEED INTERFACE
FAMILY OF PARTS
PART
NUMBER
FULL/HALF
DUPLEX
VCC
(V)
VOD
(V)
DATA RATE
(Mbps)
ISL3179E
Half
3.3
1.5
40
ISL3180E
Full
3.3
1.5
40
ISL3159E
Half
5
2.1
40
ISL3259E
Half
5
2.1
100
FIGURE 1. TYPICAL OPERATING CIRCUIT - ISL3179E
0.1µF
+
D
R
7
6
8
1
2
3
4
5
VCC
GND
RO
RE
DE
DI
A/Y
B/Z
+3.3V
0.1µF
+
D
R
6
7
8
1
2
3
4
5
VCC
GND
RO
RE
DE
DI
A/Y
B/Z
+3.3V
RT
RT
(SOIC AND MSOP PIN NUMBERS SHOWN)
August 25, 2015
FN6365.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2007-2008, 2011, 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.


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