83485IB datasheet, PDF - EEWORLD Datasheet

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83485IB: DescriptionLINE TRANSCEIVER, PDSO14; Categorysemiconductor Analog mixed-signal IC; File Size534KB，17 Pages; ManufacturerIntersil ( Renesas ); Websitehttp://www.intersil.com/cda/home/

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83485IB Overview

LINE TRANSCEIVER, PDSO14

83485IB Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	14
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply voltage 1	3.6 V
Minimum supply voltage 1	3 V
Rated supply voltage 1	3.3 V
Processing package description	Lead FREE, plastic, MS-012AB, SOIC-14
Lead-free	Yes
EU RoHS regulations	Yes
state	ACTIVE
Craftsmanship	BICMOS
packaging shape	Rectangle
Package Size	SMALL OUTLINE
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	1.27 mm
terminal coating	MATTE Tin
Terminal location	pair
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
Max TPHL driver	35 ns
Interface Type	line transceiver
Interface standards	EIA-422; EIA-485
Max TPHL receiver	90 ns
Differential output	Yes
Number of drive digits	1
Input properties	Differential SCHMITT flip-flop
Number of receiver bits	1

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ISL83483, ISL83485, ISL83488,

ISL83490, ISL83491

Data Sheet

August 2004

FN6052.3

3.3V, Low Power, High Speed or Slew Rate

Limited, RS-485/RS-422 Transceivers

These Intersil RS-485/RS-422 devices are BiCMOS 3.3V

powered, single transceivers that meet both the RS-485 and

RS-422 standards for balanced communication. Unlike

competitive devices, this Intersil family is specified for 10%

tolerance supplies (3V to 3.6V).

The ISL83483 and ISL83488 utilize slew rate limited drivers

which reduce EMI, and minimize reflections from improperly

terminated transmission lines, or unterminated stubs in

multidrop and multipoint applications.

Data rates up to 10Mbps are achievable by using the

ISL83485, ISL83490, or ISL83491, which feature higher

slew rates.

Logic inputs (e.g., DI and DE) accept signals in excess of

5.5V, making them compatible with 5V logic families.

Receiver (Rx) inputs feature a “fail-safe if open” design,

which ensures a logic high output if Rx inputs are floating. All

devices present a “single unit load” to the RS-485 bus, which

allows up to 32 transceivers on the network.

Driver (Tx) outputs are short circuit protected, even for

voltages exceeding the power supply voltage. Additionally,

on-chip thermal shutdown circuitry disables the Tx outputs to

prevent damage if power dissipation becomes excessive.

The ISL83488, ISL83490, ISL83491 are configured for full

duplex (separate Rx input and Tx output pins) applications.

The ISL83488 and ISL83490 are offered in space saving 8

lead packages for applications not requiring Rx and Tx

output disable functions (e.g., point-to-point and RS-422).

Half duplex configurations (ISL83483, ISL83485) multiplex

the Rx inputs and Tx outputs to provide transceivers with Rx

and Tx disable functions in 8 lead packages.

Features

• Operate from a Single +3.3V Supply (10% Tolerance)

• Interoperable with 5V Logic

• High Data Rates. . . . . . . . . . . . . . . . . . . . . up to 10Mbps

• Single Unit Load Allows up to 32 Devices on the Bus

• Slew Rate Limited Versions for Error Free Data

Transmission (ISL83483, ISL83488) . . . . . .up to 250kbps

• Low Current Shutdown Mode (ISL83483, ISL83485,

ISL83491). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15nA

• -7V to +12V Common Mode Input Voltage Range

• Three State Rx and Tx Outputs (Except ISL83488,

ISL83490)

• 10ns Propagation Delay, 1ns Skew (ISL83485, ISL83490,

ISL83491)

• Full Duplex and Half Duplex Pinouts

• Current Limiting and Thermal Shutdown for driver

Overload Protection

•

Pb-free available

Applications

• Factory Automation

• Security Networks

• Building Environmental Control Systems

• Industrial/Process Control Networks

• Level Translators (e.g., RS-232 to RS-422)

• RS-232 “Extension Cords”

TABLE 1. SUMMARY OF FEATURES

PART

NUMBER

ISL83483

ISL83485

ISL83488

ISL83490

ISL83491

HALF/FULL

DUPLEX

Half

Full

DATA RATE

(Mbps)

0.25

SLEW-RATE

LIMITED?

Yes

RECEIVER/DRIVER

ENABLE?

Yes

QUIESCENT I

(mA)

0.65

LOW POWER

SHUTDOWN?

Yes

PIN COUNT

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 321-724-7143

Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

83485IB Related Products

	83485IB	83483IB	83488IB
Description	LINE TRANSCEIVER, PDSO14	LINE TRANSCEIVER, PDSO14	LINE TRANSCEIVER, PDSO14
Number of functions	1	1	1
Number of terminals	14	14	14
Maximum operating temperature	85 Cel	85 Cel	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel
Maximum supply voltage 1	3.6 V	3.6 V	3.6 V
Minimum supply voltage 1	3 V	3 V	3 V
Rated supply voltage 1	3.3 V	3.3 V	3.3 V
Processing package description	Lead FREE, plastic, MS-012AB, SOIC-14	Lead FREE, plastic, MS-012AB, SOIC-14	Lead FREE, plastic, MS-012AB, SOIC-14
Lead-free	Yes	Yes	Yes
EU RoHS regulations	Yes	Yes	Yes
state	ACTIVE	ACTIVE	ACTIVE
Craftsmanship	BICMOS	BICMOS	BICMOS
packaging shape	Rectangle	Rectangle	Rectangle
Package Size	SMALL OUTLINE	SMALL OUTLINE	SMALL OUTLINE
surface mount	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING
Terminal spacing	1.27 mm	1.27 mm	1.27 mm
terminal coating	MATTE Tin	MATTE Tin	MATTE Tin
Terminal location	pair	pair	pair
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
Max TPHL driver	35 ns	35 ns	35 ns
Interface Type	line transceiver	line transceiver	line transceiver
Interface standards	EIA-422; EIA-485	EIA-422; EIA-485	EIA-422; EIA-485
Max TPHL receiver	90 ns	90 ns	90 ns
Differential output	Yes	Yes	Yes
Number of drive digits	1	1	1
Input properties	Differential SCHMITT flip-flop	Differential SCHMITT flip-flop	Differential SCHMITT flip-flop
Number of receiver bits	1	1	1

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