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ST3222

3 TO 3.6V, LOW POWER, UP TO 400KBPS,

RS-232 DRIVERS AND RECEIVERS

s

s

s

s

s

300碌A SUPPLY CURRENT

250Kbps MINIMUM GUARENTEED DATA

RATE

6V/碌s MINIMUM GUARANTEED SLEW RATE

MEET EIA/TIA-232 SPECIFICATIONS DOWN

TO 3V

AVAILABLE IN SO-18 AND TSSOP20

SOP

TSSOP

DESCRIPTION

The ST3222 is a 3V powered EIA/TIA-232 and

V.28/V.24 communications interface with low

power requirements

and high data-rate

capabilities. ST3222 has a proprietary low dropout

transmitter output stage providing true RS-232

performance from 3 to 3.6V power supplies. The

device requires only four small 0.1碌F standard

external capacitors for operating from 3V supply.

The ST3222 has two receivers and two drivers.

The ST3222 features a 1碌A shutdown mode that

reduces power consumption and extends battery

life in portable systems. Its receivers can remain

active in shutdown mode, allowing external

devices such as modems to be monitored using

only 1碌A supply current.

The device is guaranteed to run at data rates of

250Kbps while maintaining RS-232 output levels.

ORDERING CODES

Type

ST3222CD

ST3222BD

ST3222CDR

ST3222BDR

ST3222CTR

ST3222BTR

Temperature

Range

0 to 70 擄C

-40 to 85 擄C

0 to 70 擄C

-40 to 85 擄C

0 to 70 擄C

-40 to 85 擄C

Package

Typical applications are Notebook, Subnotebook

and Palmtop Computers, Battery Powered

Equipment, Hand-Held Equipment, Peripherals

and Printers.

Comments

50parts per tube / 20tube per box

50parts per tube / 20tube per box

1000 parts per reel

1000 parts per reel

2500 parts per reel

2500 parts per reel

SO-18 (Tube)

SO-18 (Tube)

SO-18 (Tape & Reel)

SO-18 (Tape & Reel)

TSSOP20 (Tape & Reel)

TSSOP20 (Tape & Reel)

October 2002

1/9

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