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C2+

C2−

V−

RIN1

RIN2

RIN3

RIN4

RIN5

DOUT1

DOUT2

DOUT3

DIN3

DIN2

DIN1

C1+

V+

GND

C1−

FORCEON

FORCEOFF

INVALID

ROUT2B

ROUT1

ROUT2

ROUT3

ROUT4

ROUT5

DB, DW, OR PW PACKAGE

(TOP VIEW)

QFN PACKAGE

(TOP VIEW)

GND

C1–

FORCEON

FORCEOFF

INVALID

ROUTB2

ROUT1

ROUT2

RIN1

RIN2

RIN3

RIN4

RIN5

DOUT1

DOUT2

DOUT3

V–

C2–

C2+

C1+

V+

DIN3

DIN2

DIN1

ROUT5

ROUT4

ROUT3

3132 30 29 28 27 26 25

109 11 12 13 14 15 16

MAX3243E

www.ti.com

SLLS657D –APRIL 2005– REVISED SEPTEMBER 2011

3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER

WITH ±15-kV IEC ESD PROTECTION

Check for Samples: MAX3243E

FEATURES

• Single-Chip and Single-Supply Interface for

IBM™ PC/AT™ Serial Port

• ESD Protection for RS-232 Bus Pins

– ±15-kV Human-Body Model (HBM)

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

– ±15-kV IEC61000-4-2, Air-Gap Discharge

• Meets or Exceeds Requirements of

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

• Operates With 3-V to 5.5-V V

Supply

• Always-Active Noninverting Receiver Output

(ROUT2B)

• Designed to Transmit at a Data Rate up to

500 kbit/s

• Low Standby Current . . . 1 μA Typ

• External Capacitors . . . 4 × 0.1 μF

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

• Designed to Be Interchangeable With Maxim

MAX3243E

• Serial-Mouse Driveability

• Auto-Powerdown Feature to Disable Driver

Outputs When No Valid RS-232 Signal Is

Sensed

• Package Options Include Plastic Small-Outline

(DW), Shrink Small-Outline (DB), and Thin

Shrink Small-Outline (PW) Packages

APPLICATIONS

• Battery-Powered Systems

• PDAs

• Notebooks

• Laptops

• Palmtop PCs

• Hand-Held Equipment

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.

2IBM, PC/AT are trademarks of International Business Machines Corporation.

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 (30 pages)

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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com 3-V TO 5.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com DESCRIPTION The MAX3243E device consists of three line drivers, five line receivers, and a dual charge-pump circuit with ±15-kV ESD (HBM and IEC61000-4-2, Air-Gap Discharge) and ±8-kV ESD (IEC61000-4-2, Contact Discharge) protection on serial-port connection pins. 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.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) (2) MIN MAX UNIT VCC Supply voltage range –0.3 6 V V+ Positive output supply voltage range (2) –0.3 7 V V– Negative output supply voltage range (2) 0.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com DRIVER SECTION Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER MIN TYP (2) MAX TEST CONDITIONS UNIT VOH High-level output voltage All DOUT at RL = 3 kΩ to GND 5 5.4 V VOL Low-level output voltage All DOUT at RL = 3 kΩ to GND –5 –5.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com RECEIVER SECTION Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER TEST CONDITIONS VOH High-level output voltage IOH = –1 mA VOL Low-level output voltage IOH = 1.6 mA TYP (2) VCC – 0.6 VCC – 0.1 MAX 0.4 1.6 2.4 VCC = 5 V 1.9 2.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com AUTO-POWERDOWN SECTION Electrical Characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5) PARAMETER TEST CONDITIONS MIN VIT+(valid) Receiver input threshold for INVALID high-level output voltage FORCEON = GND, FORCEOFF = VCC VIT–(valid) Receiver input threshold for INVALID high-level output voltage FORCEON = GND, FORCEOFF = VCC –2.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION 3V Generator (see Note B) Input RS-232 Output 50 Ω RL CL (see Note A) 3V FORCEOFF TEST CIRCUIT 0V Output SR(tr) + tTLH tTHL 6V t THL or tTLH VOH 3V 3V −3 V −3 V VOL VOLTAGE WAVEFORMS NOTES: A. CL includes probe and jig capacitance. B. The pulse generator has the following characteristics: ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns. Figure 1.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION 3V Input VCC 3 V or 0 V FORCEON 1.5 V GND S1 −3 V tPZH (S1 at GND) tPHZ (S1 at GND) RL 3 V or 0 V 1.5 V VOH Output 50% Output CL (see Note A) FORCEOFF Generator (see Note B) 50 Ω 0.3 V tPZL (S1 at VCC) tPLZ (S1 at VCC) 0.3 V Output 50% VOL TEST CIRCUIT NOTES: A. B. C. D. VOLTAGE WAVEFORMS CL includes probe and jig capacitance.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com PARAMETER MEASUREMENT INFORMATION 2.7 V 2.7 V 0V Receiver Input 0V −2.7 V −2.7 V ROUT Generator (see Note B) 3V 50 Ω tinvalid tvalid 50% VCC 50% VCC −3 V VCC Autopowerdown ten INVALID ≈V+ V+ CL = 30 pF (see Note A) 0.3 V VCC 0V 0.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com APPLICATION INFORMATION C1+ 1 + C2 − 2 3 C2− VCC V− GND + C1− RIN1 RIN2 RIN3 RS-232 Inputs RIN4 RIN5 DOUT1 RS-232 Outputs DOUT2 4 27 + − 26 25 C3† + − + CBYPASS − = 0.
PAGE 13
MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com APPLICATION INFORMATION ESD Protection TI MAX3243E devices have standard ESD protection structures incorporated on the pins to protect against electrostatic discharges encountered during assembly and handling. In addition, the RS232 bus pins (driver outputs and receiver inputs) of these devices have an extra level of ESD protection.
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MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com APPLICATION INFORMATION 1.5 VHBM = 2 kV I DUT (A) 1.0 0.5 DUT = 10-V 1-Ω Zener Diode 0.0 0 50 100 150 200 Time (ns) Figure 8. Typical HBM Current Waveform IEC61000-4-2 (Formerly Known as IEC1000-4-2) Unlike the HBM, MM, and CDM ESD tests that apply to component level integrated circuits, the IEC61000-4-2 is a system-level ESD testing and performance standard that pertains to the end equipment.
PAGE 15
MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com APPLICATION INFORMATION I (30A) 100% (Vcontact = 8 kV) I Peak 90% (16A) (8A) 10% t 30 ns 60 ns tr = 0.7 ns to 1 ns Figure 10. Typical Current Waveform of IEC61000-4-2 ESD Generator Machine Model The Machine Model (MM) ESD test applies to all pins using a 200-pF capacitor with no discharge resistance.
PAGE 16
MAX3243E SLLS657D – APRIL 2005 – REVISED SEPTEMBER 2011 www.ti.com REVISION HISTORY Changes from Revision C (February 2009) to Revision D Page • Deleted "VALID RIN RS-232 LEVEL" from INPUTS. ........................................................................................................... 3 • Deleted "ROUT2B is active" RECEIVER STATUS and combined ROUT outputs. ..............................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 27-Jul-2013 ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
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PACKAGE MATERIALS INFORMATION www.ti.com 27-Jul-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) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 18.67 3.1 16.0 32.0 Q1 MAX3243ECDWR SOIC DW 28 1000 330.0 32.4 MAX3243ECRHBR VQFN RHB 32 3000 330.0 12.4 5.3 5.3 1.5 8.0 12.0 Q2 MAX3243EIDWR SOIC DW 28 1000 330.0 32.4 11.35 18.67 3.1 16.0 32.
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PACKAGE MATERIALS INFORMATION www.ti.com 27-Jul-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) MAX3243ECDWR SOIC DW 28 1000 367.0 367.0 55.0 MAX3243ECRHBR VQFN RHB 32 3000 367.0 367.0 35.0 MAX3243EIDWR SOIC DW 28 1000 367.0 367.0 55.0 MAX3243EIRHBR VQFN RHB 32 3000 367.0 367.0 35.
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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.