Rs-232 – Texas Instruments TECHNOLOGY FOR INNOVATORS 4Q 2006 User Manual

Page 13

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Texas Instruments 4Q 2006

Interface Selection Guide

Personal video recorder application block diagram.

RS232: IEC6100-4-2 (Level 4)
ESD-Protected Devices

TI offers new RS-232 devices with system-
level IEC61000-4-2 electrostatic discharge
(ESD) protection. This protection makes the
RS-232 interface immune to damage from
ESD strikes that may occur while the system
is up and running, such as when a connection
to the RS-232 cable is made. These devices
are drop-in replacements and are functionally
identical to the existing industry-standard
solutions, providing a seamless transition in
the qualification process. These devices meet
the requirements for low-power, high-speed
applications such as portable/consumer,
telecom and computing equipment.

TI offers these new devices in the NiPdAu

Pb-Free finish, which eliminates tin whiskers
that might compromise long-term system reli-
ability. TI offers the space-saving QFN pack-
age on select devices in addition to its
already extensive RS-232 portfolio.

Key Features

• No external ESD device needed with

these system-level ESD ratings:

– ±15-kV human-body model (HBM)
– ±8-kV IEC61000-4-2, contact

discharge

– ±15-kV IEC61000-4-2, air-gap

discharge

• Improved drop-in replacement of

popular RS-232 devices

• Data rates meet or exceed today’s

high-speed-application requirements

• Flexible power-saving options enable

longer battery life

• Wide portfolio permits selection of the

right form, fit and functionality

• Industry-leading interface product

space with assured source of supply

• NiPdAu Pb-Free solution provides

whisker-free, reliable package options

• Space-saving QFN package options for

portable applications

Applications

• The three-driver, five-receiver MAX3243E

is most popular in applications like PCs,
notebooks and servers.

• The MAX3238E/37E offer

complementary five-driver, three-
receiver solutions. These two devices
are popular in PC peripheral
applications like data cables, printers,
modems, industrial control, etc.

• The MAX3227E/23E/22E/21E are

popular in portable handheld
applications due to their reduced bit
count, package size and low power
consumption.

• Higher-speed versions like the

SNx5C3232E/23E/22E/21E meet today’s
higher throughput needs through the
serial interface.

• The MAX232E and MAX213 provide a

higher noise margin for more rugged
environments such as industrial control.

IR

RS-232

Modem

USB

1394

802.11

1284

DVI

TMS320DM64x™

EMIF

Video

Out

Video

In

PCI

JTAG

EMAC

SDRAM

TVP5146

TS5V330
TS3V330

Analog MUX

or 5150A

Flash

AMP

for THS8135 only

Host CPU

Video DAC

THS8200
THS8135

Head-

TS5A23157

Analog

MUX

phone

Volume
Control

Audio DAC

TLV320DAC26

PCI

Bus

McASP

Speaker

ADSL

Cable

Modem

RS-232

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