MAX3225EUP Maxim Integrated Products, MAX3225EUP Datasheet

MAX3225EUP

Manufacturer Part Number

MAX3225EUP

Description

TSSOP20

Manufacturer

Maxim Integrated Products

Datasheets

1.MAX3224EAP.pdf (22 pages)

2.MAX3225EUP.pdf (20 pages)

Specifications of MAX3225EUP

Date_code

09+

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The MAX3224–MAX3227/MAX3244/MAX3245 are 3V-

powered EIA/TIA-232 and V.28/V.24 communications

interfaces with automatic shutdown/wakeup features

and high data-rate capabilities.

All devices achieve a 1µA supply current using Maxim’s

revolutionary AutoShutdown Plus™ feature. These

devices automatically enter a low-power shutdown

mode when the RS-232 cable is disconnected or the

transmitters of the connected peripherals are inactive,

and the UART driving the transmitter inputs is inactive

for more than 30 seconds. They turn on again when

they sense a valid transition at any transmitter or receiv-

er input. AutoShutdown Plus saves power without

changes to the existing BIOS or operating system.

The MAX3225/MAX3227/MAX3245 also feature

MegaBaud™ operation, guaranteeing 1Mbps for high-

speed applications such as communicating with ISDN

modems. The MAX3224/MAX3226/MAX3244 guarantee

250kbps operation. The transceivers have a proprietary

low-dropout transmitter output stage enabling true RS-

232 performance from a +3.0V to +5.5V supply with a

dual charge pump. The charge pump requires only four

small 0.1µF capacitors for operation from a 3.3V supply.

The MAX3224–MAX3227 feature a logic-level output

(READY) that asserts when the charge pump is regulat-

ing and the device is ready to begin transmitting.

All devices are available in a space-saving TQFN,

TSSOP, and SSOP packages.

________________________Applications

AutoShutdownPlus, MegaBaud, and UCSP are trademarks

of Maxim Integrated Products, Inc.

†

19-1289; Rev 3; 9/05

________________General Description

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

Covered by U.S. Patent numbers 4,636,930; 4,679,134; 4,777,577; 4,797,899; 4,809,152; 4,897,774; 4,999,761; 5,649,210; and other patents pending.

RS-232 Transceivers with AutoShutdown Plus

Notebook, Subnotebook, and Palmtop Computers

Cellular Phones

Battery-Powered Equipment

Hand-Held Equipment

Peripherals

Printers

1µA Supply Current, 1Mbps, 3.0V to 5.5V,

________________________________________________________________ Maxim Integrated Products

♦ For Smaller Packaging:

♦ For Low-Voltage or Data Cable Applications:

♦ For Integrated ESD Protection:

Ordering Information continued at end of data sheet.

*EP = Exposed paddle.

_______________Ordering Information

_____________________ Selector Guide

M A X3 2 2 4C P P

M AX3224C AP

M AX3224C TP

M AX3224C U P

M AX3224E P P

M AX3224E AP

M AX3224E TP

M AX3224E U P

_Next Generation Device Features

MAX3224

MAX3225

MAX3226

MAX3227

MAX3244

MAX3245

MAX3228/MAX3229: +2.5V to +5.5V RS-232

Transceivers in UCSP™

MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA,

2 Tx/2 Rx RS-232 Transceivers with ±15kV ESD-

Protected I/O and Logic Pins

MAX3222E/MAX3232E/MAX3237E/MAX3241E

MAX3246E: ±15kV ESD-Protected, Down to 10nA,

+3.0V to +5.5V, Up to 1Mbps, True RS-232

Transceivers (MAX3246E Available in UCSP)

PART

RECEIVERS

DRIVERS/

NO. OF

-40°C to +85°C

2/2

1/1

3/5

TEMP RANGE PIN-PACKAGE

0°C to +70°C

GUARANTEED

DATA RATE

(bps)

250k

20 Plastic DIP

20 S S OP

20 Thin QFN-EP*

20 TS S OP

20 Plastic DIP

20 S S OP

20 Thin QFN-EP*

5mm x 5mm

20 TS S OP

OUTPUT

READY

—

✔

SHUTDOWN

AUTO-

PLUS

T2055-5

T4477- 3

CODE

✔

PKG

†

—

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