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DESCRIPTION/

DB, DW, OR PW PACKAGE

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EN

C1+

V+

C1−

C2+

C2−

V−

DOUT2

RIN2

ROUT2

PWRDOWN

GND

DOUT1

RIN1

ROUT1

NC

DIN1

DIN2

NC

NC − No internal connection

RHL PACKAGE

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GND

DOUT1

RIN1

ROUT1

NC

DIN1

NC

DIN2

C1+

NC

V+

C1–

C2+

C2–

V–

DOUT2

NC

RIN2

NC − No internal connection

The SN65C3222E and SN75C3222E can be placed in the power-down mode by setting the power-down

SN65C3222E

,, SN75C3222E

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVERS/RECEIVERS

WITH

±15-kV ESD PROTECTION

SLLS725A – JUNE 2006 – REVISED JULY 2006

•

ESD Protection for RS-232 Bus Pins

–

±15-kV Human-Body Model (HBM)

–

±8-kV IEC 61000-4-2, Contact Discharge

–

±15-kV IEC 61000-4-2, Air-Gap Discharge

•

Meet or Exceed the Requirements of

TIA/EIA-232-F and ITU v.28 Standards

•

•

Operate up to 1000 kbit/s

•

Two Drivers and Two Receivers

•

Low Standby Current . . . 1

µA Typ

•

External Capacitors . . . 4

× 0.1 µF

•

Accepts 5-V Logic Input With 3.3-V Supply

•

Battery-Powered Systems

•

PDAs

•

Notebooks

•

Laptops

•

Palmtop PCs

•

Hand-Held Equipment

ORDERING INFORMATION

The SN65C3222E and SN75C3222E consist of two

line

drivers,

two

line

receivers,

and

a

dual

charge-pump circuit with

±15-kV ESD protection pin

to pin (serial-port connection pins, including GND).

The devices meet the requirements of TIA/EIA-232-F

and provide the electrical interface between an

asynchronous communication controller and the

serial-port connector. The charge pump and four

small external capacitors allow operation from a

single 3-V to 5.5-V supply. The devices operate at

typical data signaling rates up to 1000 kbit/s and are

improved drop-in replacements for industry-popular

'3222 two-driver, two-receiver functions.

(PWRDOWN) input low, which draws only 1

µA from the power supply. When the devices are powered down,

the receivers remain active while the drivers are placed in the high-impedance state. Also, during power down,

also can be placed in the high-impedance state by setting enable (EN) high.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.