MAX3227EETE+ Maxim Integrated Products, MAX3227EETE+ Datasheet

MAX3227EETE+

Manufacturer Part Number

MAX3227EETE+

Description

IC TXRX RS232 1MBPS SD 16TQFN

Manufacturer

Maxim Integrated Products

Type

Transceiverr

Datasheet

1.MAX3226ECUE.pdf (26 pages)

Specifications of MAX3227EETE+

Number Of Drivers/receivers

1/1

Protocol

RS232

Voltage - Supply

3 V ~ 5.5 V

Mounting Type

Surface Mount

Package / Case

16-TQFN Exposed Pad

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

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The MAX3224E/MAX3225E/MAX3226E/MAX3227E/

MAX3244E/MAX3245E are 3V-powered EIA/TIA-232

and V.28/V.24 communications interfaces with automat-

ic shutdown/wakeup features, high data-rate capabili-

ties, and enhanced electrostatic discharge (ESD)

protection. 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.

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 MAX3225E/MAX3227E/MAX3245E also feature

MegaBaud™ operation, guaranteeing 1Mbps for high-

speed applications such as communicating with ISDN

modems. The MAX3224E/MAX3226E/MAX3244E guar-

antee 250kbps operation. The transceivers have a pro-

prietary 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 MAX3224E–MAX3227E feature a logic-

level output (READY) that asserts when the charge

pump is regulating and the device is ready to begin

transmitting.

All devices are available in a space-saving TQFN,

SSOP, and TSSOP (MAX3224E/MAX3225E/MAX3244E/

MAX3245E) packages.

†

4,792; 4,8974; 4,991; 5,640; a er

AutoShutdown Plus, MegaBaud, and UCSP are trademarks of

Maxim Integrated Products, Inc.

________________________Applications

19-1339; Rev 9; 2/07

________________General Description

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.

pg.

±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V,

C U.S. nurs ; 4,634; 4,777;

RS-232 Transceivers with AutoShutdown Plus

Notebook, Subnotebook, and Palmtop Computers

Cellular Phones

Battery-Powered Equipment

Hand-Held Equipment

Peripherals

Printers

________________________________________________________________ Maxim Integrated Products

♦ ♦ For Space-Constrained Applications:

♦ ♦ For Low-Voltage or Data Cable Applications:

* EP = Exposed paddle.

Ordering Information continued at end of data sheet.

_____________________ Selector Guide

__Next Generation Device Features

MAX3224E

MAX3225E

MAX3226E

MAX3227E

MAX3244E

MAX3245E

MAX3224ECTP

MAX3224ECUP

MAX3224ECAP

MAX3224ECPP

MAX3224EETP

MAX3224EEUP

MAX3224EEAP

MAX3224EEPP

MAX3224EAAP

MAX3228E/MAX3229E: ±15kV ESD-Protected,

+2.5V to +5.5V, RS-232 Transceivers in UCSP™

MAX3222E/MAX3232E/MAX3241E/MAX3246E:

±15kV ESD-Protected, Down to 10nA, +3.0V to

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

(MAX3246E Available in UCSP)

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

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

ESD-Protected I/O and Logic Pins

PART

RECEIVERS

DRIVERS/

NO. OF

2/2

1/1

3/5

-40°C to +125°C

-40°C to +85°C

0°C to +70°C

Ordering Information

GUARANTEED

RANGE

TEMP

DATA RATE

(bps)

250k

OUTPUT

READY

20 TSSOP —

20 TQFN-

20 Plastic

20 TQFN-

20 Plastic

20 SSOP

PKG

—

✔

EP*

DIP

EP*

DIP

Shutdown

Auto-

PKG

CODE

T2055-5

—

T2055-5

—

Plus

✔

Related parts for MAX3227EETE+

MAX3227EETE+ Summary of contents

Page 1

... AutoShutdown Plus, MegaBaud, and UCSP are trademarks of Maxim Integrated Products, Inc. ________________________________________________________________ Maxim Integrated Products 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. __Next Generation Device Features ♦ ♦ For Space-Constrained Applications: MAX3228E/MAX3229E: ± ...

Page 2

ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0. GND (Note 1) ..................................................-0. GND (Note 1) ...................................................+0. ...

Page 3

ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ELECTRICAL CHARACTERISTICS (continued +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10 unless otherwise noted. Typical values are at T PARAMETER SYMBOL TRANSMITTER ...

Page 4

ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus TIMING CHARACTERISTICS—MAX3224E/MAX3226E/MAX3244E (V = +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10 unless otherwise noted. Typical values are at T PARAMETER SYMBOL Maximum Data ...

Page 5

ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus __________________________________________Typical Operating Characteristics (V = +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C CC MAX3224E/MAX3226E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE 6 5 ...

Page 6

ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus _____________________________Typical Operating Characteristics (continued +3.3V, 250kbps data rate, 0.1µF capacitors, all transmitters loaded with 3kΩ and C CC MAX3244E TRANSMITTER OUTPUT VOLTAGE vs. LOAD CAPACITANCE ...

Page 7

ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ______________________________________________________________ Pin Description MAX3224E MAX3226E MAX3225E MAX3227E DIP/ SSOP/ TQFN SSOP/ TQFN TSSOP TSSOP ...

Page 8

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ______________________________________________________________ Pin Description MAX3224E MAX3226E MAX3225E MAX3227E DIP/ SSOP/ TQFN SSOP/ TQFN TSSOP TSSOP 10 ...

Page 9

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus POWER- FORCEOFF MANAGEMENT FORCEON UNIT OR KEYBOARD INVALID CONTROLLER MAX3244E MAX3245E I/O CPU CHIP WITH UART Figure 1. Interface Under Control of PMU RS-232 Transmitters The transmitters are ...

Page 10

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus Table 1. Output Control Truth Table OPERATION FORCEOFF FORCEON STATUS Shutdown X 0 (Forced Off) Normal Operation 1 1 (Forced On) Normal Operation 0 1 (AutoShutdown Plus) Shutdown ...

Page 11

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus +0.3V R_IN -0.3V INVALID ASSERTED IF ALL RECEIVER INPUTS ARE BETWEEN +0.3V AND -0.3V FOR AT LEAST 30μs. Figure 3a. INVALID Functional Diagram, INVALID Low +2.7V R_IN -2.7V ...

Page 12

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus RECEIVER INPUTS TRANSMITTER INPUTS TRANSMITTER OUTPUTS V INVALID CC t INVL OUTPUT t INVH READY *MAX3224E–MAX3227E Figure 4b. AutoShutdown ...

Page 13

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus R 1MΩ R 1500Ω DISCHARGE CHARGE-CURRENT RESISTANCE LIMIT RESISTOR HIGH STORAGE VOLTAGE 100pF CAPACITOR DC SOURCE Figure 6a. Human Body ESD Test Model I ...

Page 14

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus The IEC 1000-4-2 standard covers ESD testing and per- formance of finished equipment; it does not specifically refer to integrated circuits. The MAX3224E–MAX3227E, MAX3244E/MAX3245E help you design equipment ...

Page 15

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus transmitter is loaded with 3kΩ in parallel with 1000pF. The transmitter outputs display no ringing or undesir- able transients as they come out of shutdown. Note that the ...

Page 16

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus +3.3V 0.1μF 28 C1+ C1 0.1μF 24 C1- MAX3244E 1 C2+ MAX3245E C2 0.1μF 2 C2- T1IN 14 LOGIC T2IN 13 INPUTS T3IN 12 R2OUTB 20 R1OUT 19 ...

Page 17

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus 3. OUT OUT ...

Page 18

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ___________________________________________________Typical Operating Circuits +3.3V 15 0.1μF C BYPASS C1+ C1 0.1μF 4 C1- MAX3226E* 5 C2+ MAX3227E C2 6 0.1μF C2- 11 T1IN 9 R1OUT ...

Page 19

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ___________________________________________________________ Pin Configurations READY 16 FORCEOFF C1 GND MAX3226E C1 T1OUT MAX3227E C2+ 5 FORCEON 12 C2- 6 ...

Page 20

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus ___________________________________________Ordering Information (continued) TEMP PART RANGE MAX3225ECUP 0°C to +70°C MAX3225ECTP 0°C to +70°C MAX3225ECAP 0°C to +70°C MAX3225ECPP 0°C to +70°C MAX3225EETP -40°C to +85°C MAX3225EEUP -40°C ...

Page 21

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) ______________________________________________________________________________________ Package Information 21 ...

Page 22

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 22 ______________________________________________________________________________________ Package Information ...

Page 23

Page 24

ESD-Protected, 1µA, 1Mbps 3.0V to 5.5V, RS-232 Transceivers with AutoShutdown Plus (The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information www.maxim-ic.com/packages.) 24 ______________________________________________________________________________________ Package Information (continued) ...

Page 25

Page 26

... 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 notice at any time. 26 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2007 Maxim Integrated Products ...

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