MAX3229EEBV MAXIM [Maxim Integrated Products], MAX3229EEBV Datasheet

MAX3229EEBV

Manufacturer Part Number

MAX3229EEBV

Description

Manufacturer

MAXIM [Maxim Integrated Products]

Datasheet

1.MAX3229EEBV.pdf (15 pages)

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19-2139; Rev 0; 8/01

The MAX3228E/MAX3229E are +2.5V to +5.5V pow-

ered EIA/TIA-232 and V.28/V.24 communications inter-

faces with low power requirements, high data-rate

capabilities, and enhanced electrostatic discharge

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

All transmitter outputs and receiver inputs are protect-

ed 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/MAX3229E achieve a 1µA supply cur-

rent 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 trans-

mitters 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/MAX3229E offer a separate power-sup-

ply input for the logic interface, allowing configurable

logic levels on the receiver outputs and transmitter

inputs. Operating over a +1.65V to V

vides the MAX3228E/MAX3229E compatibility with mul-

tiple logic families.

The MAX3229E contains one receiver and one transmit-

ter. The MAX3228E contains two receivers and two

transmitters. The MAX3228E/MAX3229E are available

in tiny chip-scale packaging and are specified across

the extended industrial temperature range of -40°C to

+85°C.

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.

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.

Personal Digital Assistants

Cell Phone Data Lump Cables

Set-Top Boxes

Hand-Held Devices

Cell Phones

________________________________________________________________ Maxim Integrated Products

General Description

±15kV ESD-Protected +2.5V to +5.5V

Applications

range, V

RS-232 Transceivers in UCSP

pro-

o 6

o ESD Protection for RS-232 I/O Pins:

o 1µA Low-Power AutoShutdown

o 250kbps Guaranteed Data Rate

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

o RS-232 Compatible to +2.5V Allows Operation

o Small 0.1µF Capacitors

o Configurable Logic Levels

*Requires solder temperature profile described in the Absolute

Maximum Ratings section.

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

methods, circuit board material, and environment. Refer to the

UCSP Reliabilitly Notice in the UCSP Reliability section of this

data sheet for more information.

from Single Li+ Cell

M A X3 2 2 8 EE BV

M A X3 2 2 9 EE BV

5 Chip-Scale Packaging (UCSP)

±15kV—IEC 1000-4-2 Air-Gap Discharge

±8kV—IEC 1000-4-2 Contact Discharge

±15kV—Human Body Model

PART

TTL/CMOS

OUTPUTS

Typical Operating Circuits

INPUTS

BYPASS

0.1µF

C1+

C1-

C2+

C2-

T1IN

T2IN

R1OUT

R2OUT

FORCEON

TEMP. RANGE

-40°C to +85°C

Ordering Information

2.5V TO 5.5V

20µA

MAX3228E

GND

1.65V TO 5.5V

FORCEOFF

20µA

INVALID

T1OUT

T2OUT

5kΩ

R1IN

R2IN

V+

V-

0.1µF

TO POWER-

MANAGEMENT

UNIT

0.1µF

RS-232

OUTPUTS

RS-232

INPUTS

PIN-

PACKAGE

6 ✕ 5 UCSP*

Features

Related parts for MAX3229EEBV

MAX3229EEBV Summary of contents

Page 1

Rev 0; 8/01 ±15kV ESD-Protected +2.5V to +5.5V General Description The MAX3228E/MAX3229E are +2.5V to +5.5V pow- ered EIA/TIA-232 and V.28/V.24 communications inter- faces with low power requirements, high data-rate capabilities, and enhanced electrostatic discharge (ESD) protection ...

Page 2

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP ABSOLUTE MAXIMUM RATINGS V to GND ...........................................................-0.3V to +6. GND .............................................................-0.3V to +7. GND ..............................................................+0.3V to -7. |V-| (Note 1) ................................................................+13V V to GND..............................................................-0.3V ...

Page 3

ESD-Protected +2.5V to +5.5V ELECTRICAL CHARACTERISTICS (continued +2.5V to +5.5V +1.65V to +5.5V, C1–C4 = 0.1µF, tested at +3.3V ±10 +25°C, unless otherwise noted.) (Note 3) PARAMETER SYMBOL RECEIVER INPUTS Input Voltage ...

Page 4

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP TIMING CHARACTERISTICS (V = +2.5V to +5.5V +1.65V to +5.5V, C1–C4 = 0.1µF, tested at +3.3V ±10 +25°C, unless otherwise noted.) (Note 3) PARAMETER SYMBOL Maximum ...

Page 5

ESD-Protected +2.5V to +5. +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C CC OPERATING SUPPLY CURRENT vs. SUPPLY VOLTAGE (MAX3229E 2.5 ...

Page 6

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP PIN NAME MAX3228E MAX3229E FORCEOFF R_OUT GND INVALID T_OUT E5 R_IN Table 1. Operating ...

Page 7

ESD-Protected +2.5V to +5.5V +0.3V R_IN -0.3V *TRANSMITTERS ARE DISABLED, REDUCING SUPPLY CURRENT TO 1µA IF ALL RECEIVER INPUTS ARE BETWEEN +0.3V AND -0.3V FOR AT LEAST 30µs. Figure 2a. MAX322_E Entering 1µA Supply Mode via AutoShutdown MAX3228E/MAX3229E maintain ...

Page 8

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP TRANSMITTERS ENABLED, INVALID HIGH +2.7V INDETERMINATE +0.3V AUTOSHUTDOWN, TRANSMITTERS DISABLED, 0 1µA SUPPLY CURRENT, INVALID LOW -0.3V INDETERMINATE -2.7V TRANSMITTERS ENABLED, INVALID HIGH a) RECEIVER INPUT VOLTAGE ( INVALID ...

Page 9

ESD-Protected +2.5V to +5.5V Table 3. Output Control Truth Table TRANSCEIVER STATUS Shutdown (AutoShutdown) Shutdown (Forced Off) Normal Operation (Forced On) Normal Operation (AutoShutdown Don’t care. † NVALID output state is determined by R_IN input ...

Page 10

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP The IEC 1000-4-2 standard covers ESD testing and per- formance of finished equipment; it does not specifically refer to integrated circuits. The MAX3228E/MAX3229E help you design equipment that meets Level 4 ...

Page 11

ESD-Protected +2.5V to +5.5V Transmitter Outputs when Exiting Shutdown Figure 7 shows a transmitter output when exiting shut- down mode. The transmitter is loaded with 3kΩ in par- allel with 1000pF. The transmitter output displays no ringing or undesirable ...

Page 12

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP Typical Operating Circuits 2.5V TO 5.5V 1.65V TO 5.5V C 0.1µF BYPASS C1+ C1 0.1µF D1 C1- MAX3229E A2 C2+ C2 0.1µ ...

Page 13

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP C2+ C2 N.C. N. C1+ N.C. N.C. C1- N.C. N.C. D INV E GND T1OUT ______________________________________________________________________________________ Pin Configurations TOP VIEW V- V ...

Page 14

ESD-Protected +2.5V to +5.5V RS-232 Transceivers in UCSP C1+ C1 GND 1 14 ______________________________________________________________________________________ Pin Configurations (continued) TOP VIEW C2+ C2- V- N.C. N.C. N.C. FON N.C. FOFF N.C. N.C. N.C. ...

Page 15

ESD-Protected +2.5V to +5.5V Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without ...

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