ISL8488EIBZA Intersil, ISL8488EIBZA Datasheet

ISL8488EIBZA

Manufacturer Part Number

ISL8488EIBZA

Description

TXRX ESD RS-485/422 5V LP 8-SOIC

Manufacturer

Intersil

Type

Transceiverr

Datasheet

1.ISL8489EIBZ.pdf (13 pages)

Specifications of ISL8488EIBZA

Number Of Drivers/receivers

1/1

Protocol

RS422, RS485

Voltage - Supply

4.5 V ~ 5.5 V

Mounting Type

Surface Mount

Package / Case

8-SOIC (3.9mm Width)

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

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Part Number

Manufacturer

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Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ISL8488EIBZA

Manufacturer:

Intersil

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392

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ISL8488EIBZA-T

Manufacturer:

INTERSIL

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Meier Automation Equipment Co., Limited

Part Number:

ISL8488EIBZA-T

Manufacturer:

INTERSIL

Quantity:

20 000

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±15kV ESD Protected, 5V, Low Power,

High Speed and Slew Rate Limited, Full

Duplex, RS-485/RS-422 Transceivers

The ISL8488E, ISL8489E, ISL8490E, ISL8491E devices are

ESD protected, BiCMOS, 5V powered, single transceivers

that meet both the RS-485 and RS-422 standards for

balanced communication. Each driver output and receiver

input is protected against ±15kV ESD strikes, without

latch-up. Unlike competitive versions, these Intersil devices

are specified for 10% tolerance supplies (4.5V to 5.5V).

These devices are configured for full duplex (separate Rx

input and Tx output pins) applications, so they are ideal for

RS-422 networks requiring high ESD tolerance on the bus

pins. The ISL8488E, ISL8490E are 8 Ld versions without Rx

and Tx output enables. The other two versions include Rx

and Tx output enable pins in a standard 14 Ld pinout.

The ISL8488E, ISL8489E 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

ISL8490E, ISL8491E, which feature higher slew rates.

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

which allows a total of 32 transmitters and receivers on the

network. For “1/8 unit load” versions (256 devices on the

bus), please refer to the ISL4489E, ISL4491E data sheet.

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

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

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.

NUMBER

ISL8488E

ISL8489E

ISL8490E

ISL8491E

PART

HALF/FULL

DUPLEX

Full

HIGH ESD?

Yes

Data Sheet

ALLOWED ON BUS

NO. OF DEVICES

TABLE 1. SUMMARY OF FEATURES

ISL8488E, ISL8489E, ISL8490E, ISL8491E

1-888-INTERSIL or 1-888-468-3774

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

DATA RATE

(Mbps)

0.25

Features

• RS-485 I/O Pin ESD Protection

• High Data Rates (ISL8490E, ISL8491E) . . up to 10Mbps

• Slew Rate Limited for Error Free Data Transmission

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

• Low Quiescent Current:

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

• Three-State Rx and Tx Outputs (Except ISL8488E,

• Full Duplex Pinout

• Operates from a Single +5V Supply (10% Tolerance)

• Current Limiting and Thermal Shutdown for Driver

• Pb-Free Plus Anneal Available (RoHS Compliant)

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”

- Class 3 ESD Level on all Other Pins . . . . . . >7kV HBM

(ISL8488E, ISL8489E)

(See ISL4489E, ISL4491E for 256 Devices on Bus)

- 120

- 140

- 370

ISL8490E)

Overload Protection

SLEW-RATE

LIMITED?

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

A (ISL8488E)

A (ISL8489E)

A (ISL8490E, ISL8491E)

July 26, 2007

Yes

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

DRIVER ENABLE?

RECEIVER/

Yes

. . . . . . . . . . . . . ±

QUIESCENT

120

140

370

(μA)

FN6073.4

15kV HBM

COUNT

Related parts for ISL8488EIBZA

ISL8488EIBZA Summary of contents

Page 1

... All other trademarks mentioned are the property of their respective owners. FN6073 ± 15kV HBM RECEIVER/ QUIESCENT DRIVER ENABLE? I (μ 120 Yes 140 No 370 Yes 370 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2004, 2007. All Rights Reserved PIN COUNT ...

Page 2

... HBM ESD Protected, Non-inverting driver output. Y ±15kV HBM ESD Protected, Inverting driver output. Z VCC System power supply input (4.5V to 5.5V Connection. 2 Ordering Information PART NUMBER (Note 1) ISL8488EIB 8 A ISL8488EIBZA 7 B (Note ISL8489EIB 5 Y ISL8489EIBZ (Note 2) ISL8490EIBZ (Note 2) ISL8491EIB 14 VCC ISL8491EIBZ ...

Page 3

ISL8488E, ISL8489E, ISL8490E, ISL8491E Typical Operating Circuit +5V + 0.1µ GND 4 +5V + 0.1µ ...

Page 4

... Ld SOIC Package (Note Maximum Junction Temperature (Plastic Package +150°C Maximum Storage Temperature Range . . . . . . . . . .-65°C to +150°C + 0.5V) Pb-free reflow profile . . . . . . . . . . . . . . . . . . . . . . . . . .see link below CC http://www.intersil.com/pbfree/Pb-FreeReflow.asp Operating Conditions Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . .-40°C to +85°C = 4.5V to 5.5V; Unless Otherwise Specified. Typicals are SYMBOL ...

Page 5

ISL8488E, ISL8489E, ISL8490E, ISL8491E Electrical Specifications Test Conditions: V (Note 4). (Continued) PARAMETER Receiver Short-Circuit Current SWITCHING CHARACTERISTICS (ISL8488E, ISL8489E) Driver Input to Output Delay Driver Output Skew Driver Differential Rise or Fall Time Driver Enable to Output High Driver ...

Page 6

ISL8488E, ISL8489E, ISL8490E, ISL8491E Test Circuits and Waveforms SIGNAL GENERATOR FIGURE 2A. TEST CIRCUIT FIGURE 2. DRIVER PROPAGATION DELAY AND DIFFERENTIAL TRANSITION TIMES ...

Page 7

ISL8488E, ISL8489E, ISL8490E, ISL8491E Test Circuits and Waveforms SIGNAL Y GENERATOR C L PARAMETER OUTPUT FIGURE 3A. TEST CIRCUIT ...

Page 8

ISL8488E, ISL8489E, ISL8490E, ISL8491E Application Information RS-485 and RS-422 are differential (balanced) data transmission standards for use in long haul or noisy environments. RS-422 is a subset of RS-485, so RS-485 transceivers are also RS-422 compliant. RS-422 is a point-to-multipoint ...

Page 9

ISL8488E, ISL8489E, ISL8490E, ISL8491E ±15kV HBM. The RS-485 pins are particularly vulnerable to ESD damage because they typically connect to an exposed port on the exterior of the finished product. Simply touching the port pins, or connecting a cable, can ...

Page 10

ISL8488E, ISL8489E, ISL8490E, ISL8491E Typical Performance Curves 750 700 650 600 550 500 450 -40 0 -25 25 TEMPERATURE (°C) FIGURE 10. DRIVER PROPAGATION DELAY vs TEMPERATURE (ISL8488E/ISL8489E PLHY 22 t PLHZ ...

Page 11

ISL8488E, ISL8489E, ISL8490E, ISL8491E Typical Performance Curves R DIFF TIME (20ns/DIV) FIGURE 16. DRIVER AND RECEIVER WAVEFORMS, LOW TO HIGH (ISL8490E/ISL8491E) Die Characteristics SUBSTRATE POTENTIAL (POWERED UP): GND TRANSISTOR ...

Page 12

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 NOTES: 1. Symbols are defined in the ...

Page 13

... 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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