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FEATURES APPLICATIONS

DB PACKAGE

(TOP VIEW)

READY

C1+

V+

C1−

C2+

C2−

V−

RIN

FORCEOFF

GND

DOUT

FORCEON

DIN

INVALID

ROUT

DESCRIPTION/ORDERING INFORMATION

MAX3227

3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER

WITH ± 15-kV ESD PROTECTION

SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006

• Battery-Powered, Hand-Held, and Portable

• Meets or Exceeds the Requirements of

Equipment

TIA/EIA-232-F and ITU v.28 Standards

• PDAs and Palmtop PCs

• Operates With 3-V to 5.5-V V

Supply

• Notebooks, Sub-Notebooks, and Laptops

• Operates at Least 1 Mbit/s

• Digital Cameras

• Low Standby Current . . . 1 µ A Typ

• Mobile Phones and Wireless Devices

• External Capacitors . . . 4 × 0.1 µ F

• Accepts 5-V Logic Input With 3.3-V Supply

• Designed to Be Interchangeable With Maxim™

MAX3227

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

• ESD Protection for RS-232 I/O Pins

– ± 15 kV – Human-Body Model

– ± 8 kV – IEC61000-4-2, Contact Discharge

– ± 8 kV – IEC61000-4-2, Air-Gap Discharge

• Auto-Powerdown Plus Feature Automatically

Disables Drivers for Power Savings

• Packaged in Plastic Shrink Small-Outline

Package

The MAX3227 consists of one line driver, one line receiver, and a dual charge-pump circuit with ± 15-kV ESD

protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of

TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the

serial-port connector. The charge pump and four small external capacitors allow operation from a single 3-V to

5.5-V supply. This device operates at data-signaling rates of 1 Mbit/s in normal operating mode and a maximum

of 30-V/ µ s driver output slew rate. This device also features a logic-level output (READY) that asserts when the

charge pump is regulating and the device is ready to begin transmitting.

The MAX3227 achieves a 1- µ A supply current using the auto-powerdown plus feature. This device automatically

enters a low-power powerdown mode when the RS-232 cable is disconnected or the drivers of the connected

peripherals are inactive for more than 30 s. They turn on again when they sense a valid transition at any driver or

receiver input. Auto-powerdown saves power without changes to the existing BIOS or operating system.

The MAX3227C is characterized for operation from 0 ° C to 70 ° C. The MAX3227I is characterized for operation

from –40 ° C to 85 ° C.

AVAILABLE OPTIONS

PACKAGED DEVICE

SHRINK SMALL OUTLINE

(DB)

(1)

0 ° C to 70 ° C MAX3227CDB

–40 ° C to 85 ° C MAX3227IDB

(1) The DB package is available taped and reeled. Add the suffix R to

device type (e.g., MAX3227CDBR).

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (16 pages)

PAGE 1
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 FEATURES APPLICATIONS • • • • • • • • • • • • Meets or Exceeds the Requirements of TIA/EIA-232-F and ITU v.28 Standards Operates With 3-V to 5.5-V VCC Supply Operates at Least 1 Mbit/s Low Standby Current . . . 1 µA Typ External Capacitors . . . 4 × 0.1 µF Accepts 5-V Logic Input With 3.
PAGE 2
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.
PAGE 3
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 TERMINAL FUNCTIONS TERMINAL NAME DESCRIPTION NO.
PAGE 4
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC Supply voltage range (2) –0.3 6 V V+ Positive output supply voltage range (2) –0.3 7 V 0.
PAGE 5
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.
PAGE 6
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 RECEIVER SECTION abc Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 3) PARAMETER VOH High-level output voltage IOH = –1 mA VOL Low-level output voltage IOL = 1.
PAGE 7
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.
PAGE 8
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 PARAMETER MEASUREMENT INFORMATION 3V Generator (see Note B) Input RS-232 Output 50 Ω RL 3V 3V Output SR(tr) tTLH tTHL CL (see Note A) 3V FORCEOFF TEST CIRCUIT 0V −3 V −3 V 6V t THL or tTLH VOH VOL VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B.
PAGE 9
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 PARAMETER MEASUREMENT INFORMATION (continued) Receiver Inputs } Invalid Region Transmitter Inputs Transmitter Outputs INVALID VCC tINVL Output 0 tINVH tWU tWU VCC Output 0 V+ VCC 0 V− VOLTAGE WAVEFORMS Valid RS-232 Level, INVALID High ROUT Generator (see Note B) 2.
PAGE 10
MAX3227 3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER WITH ±15-kV ESD PROTECTION www.ti.com SLLS673A – AUGUST 2005 – REVISED FEBRUARY 2006 APPLICATION INFORMATION READY 16 1 2 VCC C1+ 15 + 3 C1 + + − − AutoPowerdown Plus V+ C3† 4 GND − 14 13 6 C2− 7 RIN 12 C2 11 V− 10 C4 + DOUT C2+ + − CBYPASS = 0.1 µF C1− 5 − FORCEOFF 8 9 FORCEON DIN INVALID ROUT 5 kΩ † C3 can be connected to VCC or GND. NOTES: A. Resistor values shown are nominal. B.
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.com 28-May-2007 In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant MAX3227CDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.0 Q1 MAX3227IDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) MAX3227CDBR SSOP DB 16 2000 346.0 346.0 33.0 MAX3227IDBR SSOP DB 16 2000 346.0 346.0 33.
PAGE 15
MECHANICAL DATA MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001 DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE 28 PINS SHOWN 0,38 0,22 0,65 28 0,15 M 15 0,25 0,09 8,20 7,40 5,60 5,00 Gage Plane 1 14 0,25 A 0°–ā8° 0,95 0,55 Seating Plane 2,00 MAX 0,10 0,05 MIN PINS ** 14 16 20 24 28 30 38 A MAX 6,50 6,50 7,50 8,50 10,50 10,50 12,90 A MIN 5,90 5,90 6,90 7,90 9,90 9,90 12,30 DIM 4040065 /E 12/01 NOTES: A. B. C. D. All linear dimensions are in millimeters.
PAGE 16
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.