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Intersil Electronic Components Datasheet

ISL3172E Datasheet

(ISL3170E - ISL3178E) RS-485/RS-422 Transceivers

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ISL3172E pdf
ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E,
® ISL3175E, ISL3176E, ISL3177E, ISL3178E
Data Sheet
August 28, 2006
FN6307.2
±15kV ESD Protected, 3.3V, Full Fail-safe,
Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil ISL317XE are ±15kV IEC61000 ESD Protected,
3.3V powered, single transceivers that meet both the
RS-485 and RS-422 standards for balanced communication.
These devices have very low bus currents (+125μA/-100μA),
so they present a true “1/8 unit load” to the RS-485 bus. This
allows up to 256 transceivers on the network without violating
the RS-485 specification’s 32 unit load maximum, and without
using repeaters. For example, in a remote utility meter reading
system, individual meter readings are routed to a concentrator
via an RS-485 network, so the high allowed node count
minimizes the number of repeaters required.
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.
Hot Plug circuitry ensures that the Tx and Rx outputs remain
in a high impedance state while the power supply stabilizes.
Features
IEC61000 ESD Protection on RS-485 I/O Pins . . . . . ±15kV
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
• Pb-Free Plus Anneal Available (RoHS Compliant)
• Full Fail-safe (Open, Short, Terminated/Floating)
Receivers
• Hot Plug - Tx and Rx Outputs Remain Three-state During
Power-up
• True 1/8 Unit Load Allows up to 256 Devices on the Bus
• Single 3.3V Supply
• High Data Rates . . . . . . . . . . . . . . . . . . . . . . up to 20Mbps
• Low Quiescent Supply Current . . . . . . . . . . .800μA (Max)
- Ultra Low Shutdown Supply Current . . . . . . . . . . .10nA
• -7V to +12V Common Mode Input/Output Voltage Range
• Half and Full Duplex Pinouts
• Three State Rx and Tx Outputs Available
The ISL3170E through ISL3175E utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
www.DataSheet4U.coimmproperly terminated transmission lines, or unterminated
stubs in multidrop and multipoint applications. Slew rate limited
versions also include receiver input filtering to enhance noise
immunity in the presence of slow input signals.
The ISL3170E, ISL3171E, ISL3173E, ISL3174E, ISL3176E,
ISL3177E are configured for full duplex (separate Rx input
and Tx output pins) applications. The half duplex versions
multiplex the Rx inputs and Tx outputs to allow transceivers
with output disable functions in 8 lead packages.
• Current Limiting and Thermal Shutdown for driver
Overload Protection
• Tiny MSOP Packages Consume 50% Less Board Space
Applications
• Automated Utility Meter Reading Systems
• High Node Count Systems
• Field Bus Networks
• Security Camera Networks
• Building Environmental Control/ Lighting Systems
• Industrial/Process Control Networks
TABLE 1. SUMMARY OF FEATURES
PART
NUMBER
ISL3170E
HALF/FULL DATA RATE SLEW-RATE
DUPLEX
(Mbps)
LIMITED?
FULL
0.25
YES
HOT
PLUG?
YES
# DEVICES
ON BUS
256
RX/TX
ENABLE?
YES
QUIESCENT
ICC (μA)
510
LOW POWER
SHUTDOWN?
YES
PIN
COUNT
10, 14
ISL3171E
FULL
0.25
YES
YES
256
NO
510
NO 8
ISL3172E
HALF
0.25
YES
YES
256
YES
510
YES
8
ISL3173E
FULL
0.5
YES
YES
256
YES
510
YES
10, 14
ISL3174E
FULL
0.5
YES
YES
256
NO
510
NO 8
ISL3175E
HALF
0.5
YES
YES
256
YES
510
YES
8
ISL3176E
FULL
20
NO
YES
256
YES
510
YES
10, 14
ISL3177E
FULL
20
NO
YES
256
NO
510
NO 8
ISL3178E
HALF
20
NO
YES
256
YES
510
YES
8
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.


Intersil Electronic Components Datasheet

ISL3172E Datasheet

(ISL3170E - ISL3178E) RS-485/RS-422 Transceivers

No Preview Available !

ISL3172E pdf
ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E
Pinouts
ISL3172E, ISL3175E, ISL3178E
(MSOP, SOIC)
TOP VIEW
RO 1
RE 2
DE 3
DI 4
R
D
8 VCC
7 B/Z
6 A/Y
5 GND
ISL3171E, ISL3174E, ISL3177E
(MSOP, SOIC)
TOP VIEW
VCC 1
RO 2
DI 3
GND 4
R
D
8A
7B
6Z
5Y
ISL3170E, ISL3173E, ISL3176E
(MSOP)
TOP VIEW
RO 1
RE 2
DE 3
DI 4
GND 5
R
D
10 VCC
9A
8B
7Z
6Y
ISL3170E, ISL3173E, ISL3176E
(SOIC)
TOP VIEW
NC 1
RO 2
RE 3
DE 4
DI 5
GND 6
GND 7
R
D
14 VCC
13 NC
12 A
11 B
10 Z
9Y
8 NC
Ordering Information (Notes 1, 2)
PART NUMBER
PART MARKING
TEMP. RANGE (°C)
PACKAGE (Pb-Free)
PKG. DWG. #
ISL3170EIBZ
3170EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL3170EIUZ
3170Z
-40 to +85
10 Ld MSOP
M10.118
ISL3171EIBZ
3171EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL3171EIUZ
3171Z
-40 to +85
8 Ld MSOP
M8.118
ISL3172EIBZ
3172EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL3172EIUZ
3172Z
-40 to +85
8 Ld MSOP
M8.118
ISL3173EIBZ
3173EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL3173EIUZ
3173Z
-40 to +85
10 Ld MSOP
M10.118
ISL3174EIBZ
3174EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL3174EIUZ
3174Z
-40 to +85
8 Ld MSOP
M8.118
ISL3175EIBZ
3175EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL3175EIUZ
3175Z
-40 to +85
8 Ld MSOP
M8.118
ISL3176EIBZ
3176EIBZ
-40 to +85
14 Ld SOIC
M14.15
ISL3176EIUZ
ISL3177EIBZ
3176Z
3177EIBZ
-40 to +85
-40 to +85
10 Ld MSOP
8 Ld SOIC
M10.118
M8.15
ISL3177EIUZ
3177Z
-40 to +85
8 Ld MSOP
M8.118
ISL3178EIBZ
3178EIBZ
-40 to +85
8 Ld SOIC
M8.15
ISL3178EIUZ
3178Z
-40 to +85
8 Ld MSOP
M8.118
NOTES:
1. Units also available in Tape and Reel; Add “-T” to suffix.
2. Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate
termination finish, which are 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.
2 FN6307.2
August 28, 2006


Part Number ISL3172E
Description (ISL3170E - ISL3178E) RS-485/RS-422 Transceivers
Maker Intersil Corporation
Total Page 19 Pages
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