ISL3178AEMBZ-T Intersil, ISL3178AEMBZ-T Datasheet

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ISL3178AEMBZ-T

Manufacturer Part Number
ISL3178AEMBZ-T
Description
TXRX ESD 3.3V RS485/422 8-SOIC
Manufacturer
Intersil
Type
Transceiverr
Datasheet

Specifications of ISL3178AEMBZ-T

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
3 V ~ 3.6 V
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
±15kV ESD Protected, 3.3V, Full Fail-Safe,
Low Power, High Speed or Slew Rate
Limited, RS-485/RS-422 Transceivers
The Intersil ISL3178AE is
3.3V-powered, single transceivers that meet both the
RS-485 and RS-422 standards for balanced communication.
This device has very low bus currents (+125mA/-100mA),
which presents 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 ISL3178AE is a half duplex version. It multiplexes the
Rx inputs and Tx outputs to allow transceivers with output
disable functions in an 8 Ld package.
Pinout
ISL3178AEM
ISL3178AEMW
NUMBER
PART
RO
L DUPLEX
HALF/FUL
RE
DE
DI
HALF
HALF
1
2
3
4
(8 LD SOIC)
ISL3178AE
TOP VIEW
±
R
D
®
15kV IEC61000 ESD Protected,
DATA RATE
1
(Mbps)
10
10
Data Sheet
8
7
6
5
VCC
B/Z
A/Y
GND
LIMITED?
SLEW-
RATE
NO
NO
TABLE 1. SUMMARY OF FEATURES
1-888-INTERSIL or 1-888-468-3774
PLUG?
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
HOT
YES
YES
DEVICES
ON BUS
Features
• IEC61000 ESD Protection on RS-485 I/O Pins
• Full Fail-safe (Open, Short, Terminated/Floating)
• Hot Plug - Tx and Rx Outputs Remain Three-state During
• True 1/8 Unit Load Allows up to 256 Devices on the Bus
• Single 3.3V Supply
• High Data Rates . . . . . . . . . . . . . . . . . . . . . . up to 10Mbps
• Low Quiescent Supply Current . . . . . . . . . . .800µA (Max)
• -7V to +12V Common Mode Input/Output Voltage Range
• Half Duplex Pinouts
• Three State Rx and Tx Outputs Available
• Current Limiting for Driver Overload Protection
• 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
256
256
#
- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM
Receivers
Power-up (Only Versions with Output Enable Pins)
- Ultra Low Shutdown Supply Current . . . . . . . . . . .10nA
All other trademarks mentioned are the property of their respective owners.
ENABLE?
|
May 6, 2009
RX/TX
Intersil (and design) is a registered trademark of Intersil Americas Inc.
YES
YES
Copyright Intersil Americas Inc. 2009. All Rights Reserved
QUIESCENT
I
CC
510
510
(µA)
SHUTDOWN?
LOW POWER
ISL3178AE
YES
YES
FN6887.1
. . . . ±
COUNT
PIN
N/A
15kV
8

Related parts for ISL3178AEMBZ-T

ISL3178AEMBZ-T Summary of contents

Page 1

... All other trademarks mentioned are the property of their respective owners. ISL3178AE May 6, 2009 FN6887.1 RX/TX QUIESCENT LOW POWER ENABLE? I (µA) SHUTDOWN? CC YES 510 YES YES 510 YES | Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2009. All Rights Reserved 15kV . . . . ± PIN COUNT 8 N/A ...

Page 2

... NUMBER PART RANGE (Note) MARKING (°C) ISL3178AEMBZ* 3178A EMBZ -55 to +125 8 Ld SOIC ISL3178AEMW -55 to +125 *Add “-T” suffix for tape and reel. Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach ...

Page 3

Typical Application Circuit + GND 5 3 ISL3178AE ISL3178AE + 0.1µ +3.3V + 0.1µ ...

Page 4

... Thermal Resistance (Typical, Note SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C Pb-free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . .see link below +0.3V) http://www.intersil.com/pbfree/Pb-FreeReflow.asp CC = 3.0V to 3.6V; Unless Otherwise Specified. Typicals are TEST CONDITIONS R = 100Ω (RS-422) (Figure 1A, Note 11) ...

Page 5

Electrical Specifications Test Conditions: V (Note 2). Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. PARAMETER SYMBOL SUPPLY CURRENT No-Load Supply Current (Note 3) ...

Page 6

Electrical Specifications Test Conditions: V (Note 2). Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. PARAMETER SYMBOL Receiver Enable from Shutdown to t ZH(SHDN) ...

Page 7

Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 2A. TEST CIRCUIT FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES SIGNAL Y GENERATOR PARAMETER OUTPUT ...

Page 8

Test Circuits and Waveforms RE B GND SIGNAL GENERATOR FIGURE 5A. TEST CIRCUIT RE B GND SIGNAL GENERATOR PARAMETER (Note (Note 6) ...

Page 9

Receivers easily meet the data rates supported by the corresponding driver, and all receiver outputs are tri-statable via the active low RE input. Driver Features The RS-485/422 driver is a differential output device that delivers at least 1.5V across a ...

Page 10

Low Power Shutdown Mode This CMOS transceiver all uses a fraction of the power required by its bipolar counterparts, but it also includes a shutdown feature that reduces the ...

Page 11

Typical Performance Curves -60 -45 -30 - TEMPERATURE (°C) FIGURE 11. DRIVER DIFFERENTIAL PROPAGATION DELAY vs TEMPERATURE) R DIFF 3.0 2.5 B/Z 2.0 ...

Page 12

Die Characteristics DIE DIMENSIONS Thickness: 19 mils 1295µm x 1350µm Interface Materials GLASSIVATION Sandwich TEOS & Nitride TOP METALLIZATION: Type: Al with 0.5% Cu Thickness: 28kA SUBSTRATE N/A BACKSIDE FINISH Silicon/Polysilicon/Oxide Assembly Related Information SUBSTRATE POTENTIAL GND (powered up) Additional ...

Page 13

Metallization Mask Layout ISL3178AE ISL3178AE VCC FN6887.1 May 6, 2009 ...

Page 14

... 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 ...

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