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 ±   

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SLLS349J − JUNE 1999 − REVISED MARCH 2004

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D RS-232 Bus-Pin ESD Protection Exceeds

±15 kV Using Human-Body Model (HBM)

D Meets or Exceeds the Requirements of

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

D Operates With 3-V to 5.5-V V

Supply

D Operates Up To 250 kbit/s

D Five Drivers and Three Receivers

D Low Standby Current...1 µA Typical

D External Capacitors ...4 × 0.1 µF

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

D Always-Active Noninverting Receiver

Output (ROUT1B)

D Alternative High-Speed Pin-Compatible

Device (1 Mbit/s)

− SNx5C3238

D Applications

− Battery-Powered Systems, PDAs,

Notebooks, Subnotebooks, Laptops,

Palmtop PCs, Hand-Held Equipment,

Modems, and Printers

description/ordering information

The MAX3238 consists of five line drivers, three line receivers, and a dual charge-pump circuit with ±15-kV ESD

(HBM) 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 notebook and subnotebook computer

applications. The charge pump and four small external capacitors allow operation from a single 3-V to 5.5-V

supply. In addition, the device includes an always-active noninverting output (ROUT1B), which allows

applications using the ring indicator to transmit data while the device is powered down. These devices operate

at data signaling rates up to 250 kbit/s and a maximum of 30-V/µs driver output slew rate.

ORDERING INFORMATION

PACKAGE

†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

SSOP (DB)

Tube of 50 MAX3238CDB

MAX3238C

−0°C to 70°C

SSOP (DB)

Reel of 2000 MAX3238CDBR

MAX3238C

−0°C to 70°C

TSSOP (PW)

Tube of 50 MAX3238CPW

MA3238C

TSSOP (PW)

Reel of 2000 MAX3238CPWR

MA3238C

SSOP (DB)

Tube of 50 MAX3238IDB

MAX3238I

−40°C to 85°C

SSOP (DB)

Reel of 2000 MAX3238IDBR

MAX3238I

−40°C to 85°C

TSSOP (PW)

Tube of 50 MAX3238IPW

MB3238I

TSSOP (PW)

Reel of 2000 MAX3238IPWR

MB3238I

†

Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

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.

C2+

GND

C2−

V−

DOUT1

DOUT2

DOUT3

RIN1

RIN2

DOUT4

RIN3

DOUT5

FORCEON

FORCEOFF

C1+

V+

C1−

DIN1

DIN2

DIN3

ROUT1

ROUT2

DIN4

ROUT3

DIN5

ROUT1B

INVALID

DB OR PW PACKAGE

(TOP VIEW)

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%$0+*() *$"#$%& ($ )-,*!#!*'(!$") -,% (1, (,%&) $# ,2') ")(%+&,"()

)('"0'%0 3'%%'"(4 %$0+*(!$" -%$*,))!"5 0$,) "$( ",*,))'%!/4 !"*/+0,

(,)(!"5 $# '// -'%'&,(,%)

Summary of content (20 pages)

PAGE 1
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 D RS-232 Bus-Pin ESD Protection Exceeds D D D D D D D D D D DB OR PW PACKAGE (TOP VIEW) ±15 kV Using Human-Body Model (HBM) 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 Up To 250 kbit/s Five Drivers and Three Receivers Low Standby Current . . . 1 µA Typical External Capacitors . . . 4 × 0.
PAGE 2
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 description/ordering information (continued) Flexible control options for power management are featured when the serial port and driver inputs are inactive. The auto-powerdown plus feature functions when FORCEON is low and FORCEOFF is high.
PAGE 3
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 logic diagram (positive logic) DIN1 DIN2 DIN3 DIN4 DIN5 FORCEOFF FORCEON ROUT1B ROUT1 ROUT2 ROUT3 24 5 23 6 22 7 19 10 17 12 DOUT1 DOUT2 DOUT3 DOUT4 DOUT5 14 13 Auto-powerdown Plus 15 INVALID 16 21 8 20 9 18 11 RIN1 RIN2 RIN3 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3
PAGE 4
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage range, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.3 V to 6 V Positive output supply voltage range, V+ (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.
PAGE 5
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 DRIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 4 and Figure 6) PARAMETER TEST CONDITIONS MIN TYP† VOH VOL High-level output voltage All DOUT at RL = 3 kΩ to GND 5 5.4 Low-level output voltage All DOUT at RL = 3 kΩ to GND −5 −5.
PAGE 6
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 RECEIVER SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Note 4 and Figure 6) PARAMETER VOH VOL TEST CONDITIONS High-level output voltage IOH = −1 mA IOL = 1.6 mA Low-level output voltage VIT+ Positive-going input threshold voltage VCC = 3.
PAGE 7
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 AUTO-POWERDOWN PLUS SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5) PARAMETER TEST CONDITIONS MIN VT+(valid) Receiver input threshold for INVALID high-level output voltage FORCEON = GND, FORCEOFF = VCC VT−(valid) Receiver input threshold for INVALID high-level outp
PAGE 8
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 PARAMETER MEASUREMENT INFORMATION 3V Generator (see Note B) RS-232 Output 50 Ω Input 0V CL (see Note A) RL 1.5 V 1.5 V tPHL tPLH VOH 3V FORCEOFF 50% 50% Output VOL TEST CIRCUIT VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B.
PAGE 9
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 PARAMETER MEASUREMENT INFORMATION ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ Valid RS-232 Level, INVALID High ROUT Generator (see Note B) 2.7 V 50 Ω Indeterminate 0.3 V 0V If Signal Remains Within This Region For More Than 30 µs, INVALID Is Low† −0.3 V Indeterminate Autopowerdown Plus INVALID −2.
PAGE 10
± SLLS349J − JUNE 1999 − REVISED MARCH 2004 APPLICATION INFORMATION CBYPASS = 0.
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.com 11-Apr-2013 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 14
PACKAGE MATERIALS INFORMATION www.ti.com 5-Feb-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant MAX3238CDBR SSOP DB 28 2000 330.0 16.4 8.2 10.5 2.5 12.0 16.0 Q1 MAX3238CPWR TSSOP PW 28 2000 330.0 16.4 6.9 10.2 1.8 12.0 16.0 Q1 MAX3238CPWR TSSOP PW 28 2000 330.0 16.4 6.9 10.2 1.8 12.0 16.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 5-Feb-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) MAX3238CDBR SSOP DB 28 2000 367.0 367.0 38.0 MAX3238CPWR TSSOP PW 28 2000 367.0 367.0 38.0 MAX3238CPWR TSSOP PW 28 2000 367.0 367.0 38.0 MAX3238IDBR SSOP DB 28 2000 367.0 367.0 38.0 MAX3238IPWR TSSOP PW 28 2000 367.0 367.0 38.0 MAX3238IPWR TSSOP PW 28 2000 367.0 367.0 38.
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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.
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IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.