TXRX ESD 3.3V RS-485/422 8-MSOP

ISL3177EIUZ

Manufacturer Part NumberISL3177EIUZ
DescriptionTXRX ESD 3.3V RS-485/422 8-MSOP
ManufacturerIntersil
TypeTransceiver
ISL3177EIUZ datasheet
 


Specifications of ISL3177EIUZ

Number Of Drivers/receivers1/1ProtocolRS422, RS485
Voltage - Supply3 V ~ 3.6 VMounting TypeSurface Mount
Package / Case8-MSOP, Micro8™, 8-uMAX, 8-uSOP,Lead Free Status / RoHS StatusLead free / RoHS Compliant
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ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E,
®
Data Sheet
±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 (+125mA/-100mA),
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.
The ISL3170E through ISL3175E utilize slew rate limited
drivers which reduce EMI, and minimize reflections from
improperly 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 Ld packages.
PART
HALF/FULL
DATA RATE
NUMBER
DUPLEX
(Mbps)
ISL3170E
FULL
0.25
ISL3171E
FULL
0.25
ISL3172E
HALF
0.25
ISL3173E
FULL
0.5
ISL3174E
FULL
0.5
ISL3175E
HALF
0.5
ISL3176E
FULL
20
ISL3177E
FULL
20
ISL3178E
HALF
20
1
ISL3175E, ISL3176E, ISL3177E, ISL3178E
Features
• IEC61000 ESD Protection on RS-485 I/O Pins
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
• Full Fail-safe (Open, Short, Terminated/Floating)
Receivers
• Hot Plug - Tx and Rx Outputs Remain Three-state During
Power-up (Only Versions with Output Enable Pins)
• 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 . . . . . . . . . . .800
- 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
• Current Limiting and Thermal Shutdown for driver
Overload Protection
• Tiny MSOP Packages Consume 50% Less Board Space
• Pb-Free (RoHS Compliant)
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
SLEW-RATE
HOT
# DEVICES
LIMITED?
PLUG?
ON BUS
ENABLE?
YES
YES
256
YES
NO
256
YES
YES
256
YES
YES
256
YES
NO
256
YES
YES
256
NO
YES
256
NO
NO
256
NO
YES
256
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
All other trademarks mentioned are the property of their respective owners.
June 10, 2008
FN6307.4
RX/TX
QUIESCENT
LOW POWER
I
(µA)
SHUTDOWN?
CC
YES
510
YES
NO
510
NO
YES
510
YES
YES
510
YES
NO
510
NO
YES
510
YES
YES
510
YES
NO
510
NO
YES
510
YES
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2006-2008. All Rights Reserved
. . . . . ±
15kV
μ
A (Max)
PIN
COUNT
10, 14
8
8
10, 14
8
8
10, 14
8
8

ISL3177EIUZ Summary of contents

  • Page 1

    ... NO YES 510 YES YES 510 YES NO 510 NO YES 510 YES YES 510 YES NO 510 NO YES 510 YES | Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2006-2008. All Rights Reserved . . . . . ± 15kV μ A (Max) PIN COUNT ...

  • Page 2

    ... ISL3175EIUZ 3175Z ISL3176EIBZ 3176EIBZ ISL3176EIUZ 3176Z ISL3177EIBZ 3177 EIBZ ISL3177EIUZ 3177Z ISL3178EIBZ 3178 EIBZ ISL3178EIUZ 3178Z NOTES: 1. Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications. 2. These 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) ...

  • Page 3

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Truth Tables TRANSMITTING INPUTS NOTE: *Shutdown Mode (See Note 9), except for ISL3171E, ISL3174E, ISL3177E Pin ...

  • Page 4

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Operating Circuits + GND 5 +3. ...

  • Page 5

    ... Ld SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . +0.3V) Maximum Junction Temperature (Plastic Package +150°C CC Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp = 3.0V to 3.6V; Unless Otherwise Specified. Typicals are TEST CONDITIONS R = 100Ω (RS-422) (Figure 1A, Note 15) ...

  • Page 6

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Electrical Specifications Test Conditions: V (Note 4) PARAMETER SYMBOL Receiver Output Low Voltage V Three-State (high impedance) I OZR Receiver Output Current (Note 12) Receiver Input Resistance R Receiver Short-Circuit Current ...

  • Page 7

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Electrical Specifications Test Conditions: V (Note 4) PARAMETER SYMBOL Driver Enable to Output High t Driver Enable to Output Low t Driver Disable from Output High t Driver Disable from Output ...

  • Page 8

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Electrical Specifications Test Conditions: V (Note 4) PARAMETER SYMBOL Receiver Disable from Output High t Receiver Disable from Output Low t Time to Shutdown t SHDN Receiver Enable from Shutdown to ...

  • Page 9

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 2A. TEST CIRCUIT FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES SIGNAL ...

  • Page 10

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Test Circuits and Waveforms RE B GND SIGNAL GENERATOR FIGURE 5A. TEST CIRCUIT RE B GND SIGNAL GENERATOR PARAMETER ...

  • Page 11

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Receivers easily meet the data rates supported by the corresponding driver, and all receiver outputs (except on the ISL3171E, ISL3174E and ISL3177E) are tri-statable via the active low RE input. Driver ...

  • Page 12

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Built-In Driver Overload Protection As stated previously, the RS-485 spec requires that drivers survive worst case bus contentions undamaged. These devices meet this requirement via driver output short circuit current limits, ...

  • Page 13

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Performance Curves 1220 1200 1180 1160 1140 1120 t PHL 1100 t PLH 1080 -40 0 -25 25 TEMPERATURE (°C) FIGURE 11. DRIVER DIFFERENTIAL PROPAGATION DELAY vs TEMPERATURE (ISL3170E, ISL3171E, ...

  • Page 14

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Performance Curves PHL t 25 PLH -40 0 -25 25 TEMPERATURE (°C) FIGURE 15. DRIVER DIFFERENTIAL PROPAGATION DELAY vs ...

  • Page 15

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Typical Performance Curves R DIFF 3.0 2.5 B/Z 2.0 1.5 A/Y 1.0 0.5 0 TIME (200ns/DIV) FIGURE 19. DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH (ISL3173E, ISL3174E, ...

  • Page 16

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Mini Small Outline Plastic Packages (MSOP -B- INDEX 1 2 0.20 (0.008) AREA TOP VIEW 0.25 (0.010) GAUGE PLANE SEATING PLANE - 0.10 (0.004) b -H- ...

  • Page 17

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α 0.10(0.004) 0.25(0.010 ...

  • Page 18

    ISL3170E, ISL3171E, ISL3172E, ISL3173E, ISL3174E, ISL3175E, ISL3176E, ISL3177E, ISL3178E Mini Small Outline Plastic Packages (MSOP -B- INDEX 1 2 0.20 (0.008) AREA TOP VIEW 0.25 (0.010) GAUGE PLANE SEATING PLANE - 0.10 (0.004) b -H- ...

  • Page 19

    ... Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use ...