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READY

C1+

V+

C1−

C2+

C2−

V−

DOUT2

RIN2

ROUT2

FORCEOFF

GND

DOUT1

RIN1

ROUT1

FORCEON

DIN1

DIN2

INVALID

DB OR PW PACKAGE

(TOP VIEW)

MAX3318E

www.ti.com

SLLS741A –JUNE 2006–REVISED OCTOBER 2013

2.5-V 460-kbps RS-232 TRANSCEIVER

WITH ±15-kV ESD PROTECTION

Check for Samples: MAX3318E

FEATURES

DESCRIPTION

The MAX3318E is a dual-driver, dual-receiver, RS-

• ESD Protection for RS-232 I/O Pins

232-compatible transceiver. The device features

– ±15 kV (Human-Body Model)

auto-power-down plus and enhanced electrostatic

– ±8 kV (IEC 61000-4-2, Contact Discharge)

discharge (ESD) protection integrated into the chip.

Driver output and receiver input are protected to ±15

– ±15 kV (IEC 61000-4-2, Air-Gap Discharge)

kV using the IEC 61000-4-2 Air-Gap Discharge

• 300-μA Operating Supply Current

method, ±8 kV using the IEC 61000-4-2 Contact

• 1-μA Low-Power Standby (With Receivers

Discharge method, and ±15 kV using the Human-

Active) Mode

Body Model (HBM).

• Designed to Transmit at a Data Rate of

The device operates at a data rate of 460 kbps. The

460 kbps

transceiver has a proprietary low-dropout driver

output stage, enabling RS-232-compatible operation

• Auto-Power-Down Plus Option Features

from a 2.25-V to 3-V supply with a dual charge pump.

Flexible Power-Saving Mode

The charge pump requires only four 0.1-μF

• Operates From a Single 2.25-V to 3-V V

capacitors and features a logic-level output (READY)

Supply

that asserts when the charge pump is regulating and

the device is ready to begin transmitting.

APPLICATIONS

The MAX3318E achieves a 1-μA supply current using

• Battery-Powered Systems

the auto-power-down feature. This device

• PDAs

automatically enters a low-power power-down mode

when the RS-232 cable is disconnected or the drivers

• Cellular Phones

of the connected peripherals are inactive for more

• Notebooks

than 30 s. The device turns on again when it senses

• Hand-Held Equipment

a valid transition at any driver or receiver input. Auto

power down saves power without changes to the

• Pagers

existing BIOS or operating system.

This device is available in two space-saving

packages: 20-pin SSOP and 20-pin TSSOP.

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.

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 (18 pages)

PAGE 1
MAX3318E www.ti.com SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 2.5-V 460-kbps RS-232 TRANSCEIVER WITH ±15-kV ESD PROTECTION Check for Samples: MAX3318E FEATURES DESCRIPTION • The MAX3318E is a dual-driver, dual-receiver, RS232-compatible transceiver. The device features auto-power-down plus and enhanced electrostatic discharge (ESD) protection integrated into the chip.
PAGE 2
MAX3318E SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
PAGE 3
MAX3318E www.ti.com SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 LOGIC DIAGRAM (POSITIVE LOGIC) DIN1 DIN2 FORCEOFF FORCEON ROUT1 13 17 12 8 20 11 14 Auto-Power-Down Plus 15 DOUT1 DOUT2 INVALID 1 READY 16 RIN1 5 kΩ ROUT2 10 9 RIN2 5 kΩ TERMINAL FUNCTIONS TERMINAL NAME DESCRIPTION NO.
PAGE 4
MAX3318E SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 www.ti.com Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX VCC to GND –0.3 6 V V+ to GND (2) –0.3 7 V V– to GND (2) –7 0.3 V 13 V V+ + IV-I (2) Input voltage Output voltage Short-circuit duration Continuous power dissipation (TA = 70°C) DIN, FORCEON, FORCEOFF to GND –0.3 6 RIN to GND DOUT to GND ±13.2 ROUT, INVALID, READY to GND –0.3 DOUT to GND V VCC + 0.
PAGE 5
MAX3318E www.ti.com SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 Supply Current Section Electrical Characteristics VCC = 2.25 V to 3 V, C1–C4 = 0.1 μF, TA = TMIN to TMAX (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT DC Characteristics (VCC = 2.5 V, TA = 25°C) μA Auto-power-down plus supply current FORCEON = GND, FORCEOFF = VCC, All RIN and DIN idle 1 10 Auto-power-down supply current FORCEOFF = GND 1 10 μA Supply current FORCEON = FORCEOFF = VCC, No load 0.
PAGE 6
MAX3318E SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 www.ti.com Receiver Section Electrical Characteristics over recommended ranges of supply voltage and operating free-air temperature, VCC = 2.25 V to 3 V, C1–C4 = 0.1 μF, TA = TMIN to TMAX (unless otherwise noted) (see Figure 4) PARAMETER MIN TYP (1) TEST CONDITIONS Input voltage range Input threshold low TA = 25°C Input threshold high TA = 25°C V 0.3 × VCC V V 0.
PAGE 7
MAX3318E www.ti.com SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 PARAMETER MEASUREMENT INFORMATION 3V Generator (see Note B) Input RS-232 Output 50 Ω RL CL (see Note A) 3V FORCEOFF TEST CIRCUIT 0V tTLH tTHL Output 6V SR(tr) + 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: PRR = 250 kbit/s, ZO = 50 Ω, 50% duty cycle, tr ≤ 10 ns, tf ≤ 10 ns. Figure 1. Driver Slew Rate 2.
PAGE 8
MAX3318E SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 www.ti.com PARAMETER MEASUREMENT INFORMATION Receiver Inputs } Invalid Region Driver Inputs Driver Outputs VCC INVALID Output tINVL tINVH 0 tWU tWU VCC Ready Output 0 V+ VCC 0 V− VOLTAGE WAVEFORMS ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ ÎÎÎÎÎÎÎÎÎÎÎÎ Valid RS-232 Level, INVALID High ROUT Generator (see Note B) 2.7 V 50 Ω Indeterminate 0.
PAGE 9
MAX3318E www.ti.com SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 PARAMETER MEASUREMENT INFORMATION 2.5 V + 0.1 mF 19 CBYPASS 2 C1 0.1 mF C2 0.1 mF + 4 + 5 6 VCC C1+ V+ 3 + C1− V− C2+ 7 C2− 13 DIN1 DOUT1 17 12 DIN2 DOUT2 8 C4 + 0.1 mF RS-232-Compatible Outputs RS-232-Compatible Inputs RIN1 16 15 ROUT1 C3 0.1 mF 5k 10 ROUT2 1 RIN2 9 5k READY To Power-Management Unit Auto-Power- INVALID 11 Down Plus VCC FORCEOFF 20 14 FORCEON GND 18 Figure 5.
PAGE 10
MAX3318E SLLS741A – JUNE 2006 – REVISED OCTOBER 2013 www.ti.com REVISION HISTORY Changes from Original (June 2006) to Revision A Page • Updated document to new TI datasheet format - no specification changes. ....................................................................... 1 • Removed Ordering Information Table. .................................................................................................................................
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.com 11-Oct-2013 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. OBSOLETE: TI has discontinued the production of the device.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 11-Oct-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 12.0 16.0 Q1 MAX3318ECDBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 MAX3318ECPWR TSSOP PW 20 2000 330.0 16.4 6.95 7.1 1.6 8.0 16.0 Q1 MAX3318EIDBR SSOP DB 20 2000 330.0 16.4 8.2 7.5 2.5 12.0 16.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 11-Oct-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) MAX3318ECDBR SSOP DB 20 2000 367.0 367.0 38.0 MAX3318ECPWR TSSOP PW 20 2000 367.0 367.0 38.0 MAX3318EIDBR SSOP DB 20 2000 367.0 367.0 38.0 MAX3318EIPWR TSSOP PW 20 2000 367.0 367.0 38.
PAGE 15
PAGE 16
PAGE 17
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 18
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.