DATASHEET
ISL3179E, ISL3180E
FN6365
Rev. 6.00
High ESD Protected, +125C, 40Mbps, 3.3V, Full Fail-Safe RS-485/RS-422
Nov 9, 2017
Transceivers
The ISL3179E and ISL3180E are high ESD protected (see
Features
Table 2 on page 2), 3.3V powered, single transceivers that
High ESD protection on RS-485 I/O pins
meet both the RS-485 and RS-422 standards for balanced
communication. Each device has low bus currents - ISL3179E. . . . . . . . . . . . . . . . . . . . . . . . . 16.5kV IEC61000
(+220A/-150A), so they present a 1/5 unit load to the
- ISL3180E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12kV HBM
RS-485 bus. This allows up to 160 transceivers on the network
- Class 3 HBM level on all other pins (ISL3179E) . . . . . >9kV
without violating the RS-485 specifications 32 unit load
Specified for +125C operation
maximum, and without using repeaters.
High data rates. . . . . . . . . . . . . . . . . . . . . . . . . . . up to 40Mbps
Receiver (Rx) inputs feature a full fail-safe design, which
ensures a logic high Rx output if Rx inputs are floating,
5V tolerant logic inputs
shorted, or terminated but undriven.
1/5 unit load allows up to 160 devices on the bus
The ISL3180E is configured for full duplex applications. The
Full fail-safe (open, shorted, terminated/undriven) receiver
ISL3179E half duplex version multiplexes the Rx inputs and Tx
Hot plug - Tx and Rx outputs remain three-state during
outputs to allow a transceiver with an output disable function
power-up
in 8 Ld packages.
Low quiescent current . . . . . . . . . . . . . . . . . . . . . . . 4mA (max)
Hot plug circuitry ensures that the Tx and Rx outputs remain in
Low current shutdown mode . . . . . . . . . . . . . . . . . 1A (max)
a high impedance state while the power supply stabilizes.
-7V to +12V common-mode input voltage range
Related Literature
Three-state Rx and Tx outputs
For a full list of related documents, visit our website
16/16.5ns (max) Tx/Rx propagation delays; 1.5ns (max) skew
- ISL3179E and ISL3180E product pages
Operates from a single +3.3V supply (10% tolerance)
Current limiting and thermal shutdown for driver overload
Applications
protection
Motor controller/position encoder systems
Pb-free (RoHS compliant)
Factory automation
TABLE 1. KEY DIFFERENCES BETWEEN HIGH-SPEED INTERFACE
Field bus networks
FAMILY OF PARTS
Security networks
PART FULL/HALF VCC VOD DATA RATE
Building environmental control systems
NUMBER DUPLEX (V) (V) (Mbps)
Industrial/process control networks
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
+3.3V +3.3V
(SOIC AND MSOP PIN NUMBERS SHOWN)
+
+
0.1F
0.1F
8
8
V
CC V
CC
RO
1
DI 4
R
D
2
RE
R R
3
B/Z 7 T T 7 B/Z DE
6
3 DE A/Y 6 A/Y 2
RE
DI
4 1
RO
D R
GND
GND
5
5
FIGURE 1. TYPICAL OPERATING CIRCUIT - ISL3179E
FN6365 Rev. 6.00 Page 1 of 18
Nov 9, 2017ISL3179E, ISL3180E
Ordering Information
PART
NUMBER PART TEMP. RANGE PACKAGE
(Note 4, 5) MARKING (C) (RoHS Compliant) PKG. DWG. #
ISL3179EFBZ (Note 1) 3179 EFBZ -40 to +125 8 Ld SOIC M8.15
ISL3179EFUZ (Note 1) 179FZ -40 to +125 8 Ld MSOP M8.118
ISL3179EFRZ (Note 2) 79FZ -40 to +125 10 Ld DFN L10.3x3C
ISL3179EIBZ (Note 1) 3179 EIBZ -40 to +85 8 Ld SOIC M8.15
ISL3179EIUZ (Note 1) 179IZ -40 to +85 8 Ld MSOP M8.118
ISL3179EIRZ (Note 2) 79IZ -40 to +85 10 Ld DFN L10.3x3C
ISL3180EIBZ (Note 3) ISL3180 EIBZ -40 to +85 14 Ld SOIC M14.15
NOTES:
1. Add -T suffix for 2.5k unit tape or -T7A suffix for 250 unit tape and reel options. Refer to TB347 for details on reel specifications.
2. Add -T suffix for 6k unit tape or -T7A suffix for 250 unit tape and reel options. Refer to TB347 for details on reel specifications.
3. Add -T suffix for 2.5k unit tape and reel options. Refer to TB347 for details on reel specifications.
4. Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach materials, and 100% matte tin plate
plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations). Intersil Pb-free
products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020.
5. For Moisture Sensitivity Level (MSL), refer to the product information page for the ISL3179E and the ISL3180E. For more information about MSL, refer
to TB363.
TABLE 2. SUMMARY OF FEATURES
QUIESCENT
PART HALF/FULL DATA RATE RS-485 PIN HOT RX/TX I LOW POWER PIN
CC
NUMBER DUPLEX (Mbps) ESD LEVEL PLUG? ENABLE? (mA) SHUTDOWN? COUNT
ISL3179E HALF 40 16.5kV YES YES 2.6 YES 8, 10
IEC61000
ISL3180E FULL 40 12kV HBM YES YES 2.6 YES 14
FN6365 Rev. 6.00 Page 2 of 18
Nov 9, 2017