ISL8563E User Guide - Intel Silicon Intersil

Summary

The ISL8563E is a specialized transmitter/receiver designed for rock-solid RS-422 and RS-232 communication. Built for portable electronics like laptops, PDAs, and field equipment, it provides enhanced noise immunity via its wide ±5V output swing. Key features include robust ESD protection up to ±15kV and extremely low standby power consumption (1µA). The manual details comprehensive technical specifications, power supply compatibility (3V to 5.5V), operational modes, and detailed pin-out information for seamless integration into any system requiring reliable serial communication.

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ISL8563E

July 2004 FN6002.2Data Sheet

+/-15k V ESD Protected, +3V to +5.5V, Features 1Microamp, 250kbps, EIA/TIA-562,

ESD Protection for RS-562 I/O Pins to ±15k V (IEC61000)

EIA/TIA-232 Transmitters/Receivers

Drop in Replacement for MAX563, with Improved Output

The Intersil ISL8563E contains 3.0V to 5.5V powered

Voltage (±5V) for Enhanced Noise Immunity

transmitters/receivers which meet El A/TIA-562 and

Meets EIA/TIA-562, and EIA/TIA-232 Specifications at 3V

El A/TIA-232 specifications, even at VCC = 3.0V. Additionally, they provide ±15k V ESD protection (IEC61000-4-2 Air Gap RS-232 Compatible Outputs at 2.7V and Human Body Model) on transmitter outputs and receiver

Latch-Up Free

inputs (RS-562 pins). Targeted applications are PDAs,

Palmtops, and notebook and laptop computers where the On-Chip Voltage Converters Require Only Four External low operational, and even lower standby, power 0.1µF Capacitors

consumption is critical. Efficient on-chip charge pumps,

Receivers Active in Powerdown

coupled with a manual powerdown function, reduce the

Receiver Hysteresis For Improved Noise Immunity

standby supply current to a 1µA trickle. Small footprint packaging, and the use of small, low value capacitors ensure Guaranteed Minimum Data Rate . . . . . . . . . . . . . 250kbps board space savings as well. Data rates greater than

Guaranteed Minimum Slew Rate . . . . . . . . . . . . . . . 4V/µs

250kbps are guaranteed at worst case load conditions. The

ISL8563E is fully compatible with 3.3V only systems, mixed Wide Power Supply Range . . . . . . . Single +3V to +5.5V

3.3V and 5.0V systems, and 5.0V only systems.

Low Supply Current in Powerdown State. . . . . . . . . . .1µA

This product features an improved charge pump which

Applications

delivers ±5V transmitter supplies, allowing the use of the ISL8563E in RS-562 and RS-232 applications. RS-562 Any System Requiring RS-562/RS-232 Communication applications will benefit from the improved noise immunity Ports

afforded by the ±5V output swing capability. www.BDTIC.com/Intersil

Battery Powered, Hand-Held, and Portable Equipment Laptop Computers, Notebooks, Palmtops

Table 1 summarizes the features of the device represented

by this data sheet, while Application Note AN9863 Digital Cameras summarizes the features of each device comprising the 3V Bar Code Readers

RS-232 family.

Related Literature

Ordering Information Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

TEMP. PKG.

(SMDs)”

PART NO. RANGE (°C) PACKAGE DWG. #

Application Note AN9863, “3V to +5.5V, 250K-1Mbps,

ISL8563ECB 0 to 70 18 Ld SOIC M18.3

RS-232 Transmitters/Receivers”

ISL8563ECB-T 0 to 70 Tape and Reel M18.3

Pinout

ISL8563E (SOIC) TOP VIEW

EN SHDN

C1+ VCC

V+ GND

C1- T1OUT

C2+ R1IN

C2- R1OUT

V- T1IN

T2OUT T2IN

R2IN R2OUT

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.

Page Summary Contents For ISL8563E User Guide - Intel Silicon Intersil

Page 1 ISL8563E July 2004 FN6002.2Data Sheet +/-15k V ESD Protected, +3V to +5.5V, Features 1Microamp, 250kbps, EIA/TIA-562, ESD Protection for RS-562 I/O Pins to ±15k V (IEC61000) EIA/TIA-232 Transmitters/R...

Page 2 ISL8563E TABLE 1. SUMMARY OF FEATURES NO. OF DATA MANUAL AUTOMATIC NO. OF NO. OF MONITOR Rx. RATE Rx. ENABLE READY POWER- POWERDOWN PART NUMBER Tx. Rx. (ROUTB) (kbps) FUNCTION? OUTPUT? DOWN? FUNCTION?...

Page 3 ISL8563E Absolute Maximum Ratings Thermal Information VCC to Ground. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to 6V Thermal Resistance (Typical, Note 1) θJA (°C/W) V+ to Gro...

Page 4 ISL8563E Electrical Specifications Test Conditions: VCC = 3V to 5.5V, C1 - C4 = 0.1µF; Unless Otherwise Specified. Typicals are at TA = 25°C (Continued) PARAMETER TEST CONDITIONS (°C) MIN TYP MAX UNIT...

Page 5 ISL8563E Detailed Description (VCC = 0V). The receivers’ Schmitt trigger input stage uses hysteresis (even in powerdown) to increase noise immunity The ISL8563E operates from a single +3V to +5.5V sup...

Page 6 ISL8563E VCC Power Supply Decoupling VCC In most circumstances a 0.1µF bypass capacitor is VCC adequate. In applications that are particularly sensitive to CURRENT FLOW power supply noise, decouple VC...

Page 7 ISL8563E VCC Interconnection with 3V and 5V Logic VCC The ISL8563E directly interfaces with 5V CMOS and TTL C1 logic families. Nevertheless, with the device at 3.3V, and the C1- logic supply at 5V, AC...

Page 8 ISL8563E SU PP LY EN (m TR SM IT TE TP VO LT (V storage capacitor yields a test that is much more severe than repeatable results. The “E” device RS-562/232 pins the HBM test. The extra ESD protection ...

Page 9 ISL8563E Small Outline Plastic Packages (SOIC) M18.3 (JEDEC MS-013-AB ISSUE C) INDEX 0.25(0.010) BM 18 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE INCHES MILLIMETERS SYMBOL MAX MIN MAX NOTESMIN SEATI...

Manual Details

Brand	Intel
Pages	9
File Size	306.17 KB
Published	May 30, 2026

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Frequently Asked Questions

What is the system voltage range for this device?

The ISL8563E supports a wide single supply range of +3.0V to 5.5V.

How does the unit protect against electrostatic discharge?

It provides ±15kV ESD protection (IEC61000) for RS-562/RS-232 I/O pins and is latch-up free.

Is this transceiver compatible with different voltage systems?

Yes, it is fully compatible with 3.3V only, mixed 3.3V and 5.0V, and 5.0V only systems.

How can I achieve low power consumption in standby mode?

It features a manual powerdown function that allows the receiver's standby supply current to be reduced to a 1µA trickle.