MAX3228AE MAXIM [Maxim Integrated Products], MAX3228AE Datasheet

MAX3228AE

Manufacturer Part Number

MAX3228AE

Description

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX3228AE.pdf (16 pages)

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Company:

Meier Automation Equipment Co., Limited

Part Number:

MAX3228AEEWV+T

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MAXIM/美信

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20 000

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The MAX3228E/AE and MAX3229E/AE are +2.5V to

+5.5V powered EIA/TIA-232 and V.28/V.24 communica-

tions interfaces with low power requirements, high data-

rate capabilities, and enhanced electrostatic discharge

(ESD) protection, in a chip-scale package (UCSP™)

and WLP Package. All transmitter outputs and receiver

inputs are protected to ±15kV using IEC 1000-4-2 Air-

Gap Discharge, ±8kV using IEC 1000-4-2 Contact

Discharge, and ±15kV using the Human Body Model.

The MAX3228E/AE and MAX3229E/AE achieve a 1µA

supply current with Maxim’s AutoShutdown™ feature.

They save power without changes to existing BIOS or

operating systems by entering low-power shutdown

mode when the RS-232 cable is disconnected, or when

the transmitters of the connected peripherals are off.

The transceivers have a proprietary low-dropout trans-

mitter output stage, delivering RS-232 compliant perfor-

mance from a +3.1V to +5.5V supply, and RS-232

compatible performance with a supply voltage as low

as +2.5V. The dual charge pump requires only four

small 0.1µF capacitors for operation from a +3.0V sup-

ply. Each device is guaranteed to run at data rates of

250kbps while maintaining RS-232 output levels.

The MAX3228E/AE and MAX3229E/AE offer a separate

power-supply input for the logic interface, allowing con-

figurable logic levels on the receiver outputs and trans-

mitter inputs. Operating over a +1.65V to V

provides the MAX3228E/AE and MAX3229E/AE com-

patibility with multiple logic families.

The MAX3229E/AE contains one receiver and one

transmitter. The MAX3228E/AE contains two receivers

and two transmitters. The MAX3228E/AE and

MAX3229E/AE are available in tiny chip-scale and WLP

packaging and are specified across the extended

industrial temperature range of -40°C to +85°C.

19-2139; Rev 2; 10/08

Typical Operating Circuits continued at end of data sheet.

Pin Configurations appear at end of data sheet.

UCSP is a trademark of Maxim Integrated Products, Inc.

AutoShutdown is a trademark of Maxim Integrated Products, Inc.

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

Personal Digital Assistants

Cell Phone Data Lump Cables

Set-Top Boxes

Handheld Devices

Cell Phones

________________________________________________________________ Maxim Integrated Products

RS-232 Transceivers in UCSP and WLP

General Description

±15kV ESD-Protected +2.5V to +5.5V

Applications

range, V

♦ 6

♦ ESD Protection for RS-232 I/O Pins:

♦ 1µA Low-Power AutoShutdown

♦ 250kbps Guaranteed Data Rate

♦ Meets EIA/TIA-232 Specifications Down to +3.1V

♦ RS-232 Compatible to +2.5V Allows Operation

♦ Small 0.1µF Capacitors

♦ Configurable Logic Levels

+ Denotes a lead-free/RoHS-compliant package.

* Requires solder temperature profile described in the Absolute

Maximum Ratings section.

* UCSP reliability is integrally linked to the user’s assembly meth-

ods, circuit board material, and environment. Refer to the UCSP

Reliabilitly Notice in the UCSP Reliability section of this data

sheet for more information.

T = Tape and reel.

MAX3228EEBV-T

MAX3228AEEWV+T

MAX3229EEBV-T

MAX3229AEEWV+T

Package

from Single Li+ Cell

5 Chip-Scale Package (UCSP) and WLP

±15kV—IEC 1000-4-2 Air-Gap Discharge

±8kV—IEC 1000-4-2 Contact Discharge

±15kV—Human Body Model

PART

Typical Operating Circuits

TTL/CMOS

OUTPUTS

INPUTS

BYPASS

0.1μF

C1+

C1-

C2+

C2-

T1IN

T2IN

R1OUT

R2OUT

-40°C to +85°C

FORCEON

TEMP RANGE

Ordering Information

2.5V TO 5.5V

20μA

MAX3228E/AE

GND

1.65V TO 5.5V

20μA

FORCEOFF

INVALID

T1OUT

T2OUT

5kΩ

R1IN

R2IN

V+

V-

0.1μF

TO POWER-

MANAGEMENT

UNIT

BUMP-PACKAGE

6 x 5 UCSP*

6 x 5 WLP

6 x 5 UCSP*

6 x 5 WLP

0.1μF

RS-232

OUTPUTS

RS-232

INPUTS

Features

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