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DB OR PW PACKAGE

(TOP VIEW)

C1+

V+

C1−

C2+

C2−

V−

RIN

FORCEOFF

GND

DOUT

FORCEON

DIN

INVALID

ROUT

MAX3221

www.ti.com

SLLS348N –JUNE 1999–REVISED JANUARY 2014

MAX3221 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver

With ±15-kV ESD Protection

Check for Samples: MAX3221

FEATURES

DESCRIPTION

The MAX3221 device consists of one line driver, one

• RS-232 Bus-Pin ESD Protection Exceeds

line receiver, and a dual charge-pump circuit with

±15 kV Using Human-Body Model (HBM)

±15-kV ESD protection pin to pin (serial-port

• Meets or Exceeds the Requirements of

connection pins, including GND). The device meets

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

the requirements of TIA/EIA-232-F and provides the

electrical interface between an asynchronous

• Operates With 3-V to 5.5-V V

Supply

communication controller and the serial-port

• Operates Up To 250 kbit/s

connector. The charge pump and four small external

• One Driver and One Receiver

capacitors allow operation from a single 3-V to 5.5-V

• Low Standby Current: 1 μA Typical

supply. These devices operate at data signaling rates

up to 250 kbit/s and a maximum of 30-V/μs driver

• External Capacitors: 4 × 0.1 μF

output slew rate.

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

Flexible control options for power management are

• Alternative High-Speed Pin-Compatible

available when the serial port is inactive. The auto-

Device (1 Mbit/s)

powerdown feature functions when FORCEON is low

– SNx5C3221

and FORCEOFF is high. During this mode of

operation, if the device does not sense a valid RS-

• Auto-Powerdown Feature Automatically

232 signal on the receiver input, the driver output is

Disables Drivers for Power Savings

disabled. If FORCEOFF is set low and EN is high,

both the driver and receiver are shut off, and the

APPLICATIONS

supply current is reduced to 1 μA. Disconnecting the

• Battery-Powered, Hand-Held, and Portable

serial port or turning off the peripheral drivers causes

Equipment

the auto-powerdown condition to occur. Auto-

powerdown can be disabled when FORCEON and

• PDAs and Palmtop PCs

FORCEOFF are high. With auto-powerdown enabled,

• Notebooks, Subnotebooks, and Laptops

the device is activated automatically when a valid

• Digital Cameras

signal is applied to the receiver input. The INVALID

output notifies the user if an RS-232 signal is present

• Mobile Phones and Wireless Devices

at the receiver input. INVALID is high (valid data) if

the receiver input voltage is greater than 2.7 V or less

than −2.7 V, or has been between −0.3 V and 0.3 V

for less than 30 μs. INVALID is low (invalid data) if

the receiver input voltage is between −0.3 V and 0.3

V for more than 30 μs. Refer to Figure 5 for receiver

input levels.

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 (20 pages)

PAGE 1
MAX3221 www.ti.com SLLS348N – JUNE 1999 – REVISED JANUARY 2014 MAX3221 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With ±15-kV ESD Protection Check for Samples: MAX3221 FEATURES DESCRIPTION • The MAX3221 device 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).
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MAX3221 SLLS348N – JUNE 1999 – REVISED JANUARY 2014 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.
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MAX3221 www.ti.com SLLS348N – JUNE 1999 – REVISED JANUARY 2014 Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted) (1) (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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MAX3221 SLLS348N – JUNE 1999 – REVISED JANUARY 2014 www.ti.com Electrical Characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (1) (see Figure 6) PARAMETER II Auto-powerdown disabled ±0.01 ±1 µA 0.3 1 mA No load, FORCEOFF at GND 1 10 No load, FORCEOFF at VCC, FORCEON at GND, All RIN are open or grounded 1 10 No load, FORCEOFF and FORCEON at VCC Powered off Supply current No load, VCC = 3.
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MAX3221 www.ti.com SLLS348N – JUNE 1999 – REVISED JANUARY 2014 Receiver Section Electrical Characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (1) (see Figure 6) PARAMETER TEST CONDITIONS VOH High-level output voltage IOH = –1 mA VOL Low-level output voltage IOL = 1.6 mA TYP (2) VCC – 0.6 VCC – 0.1 MAX 0.4 1.5 2.4 VCC = 5 V 1.8 2.
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MAX3221 SLLS348N – JUNE 1999 – REVISED JANUARY 2014 www.ti.com Auto-Powerdown Section Electrical Characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (1) (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 output voltage FORCEON = GND, FORCEOFF = VCC –2.
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MAX3221 www.ti.com SLLS348N – JUNE 1999 – REVISED JANUARY 2014 Parameter Measurement Information 3V Generator (see Note B) Input RS-232 Output 50 Ω RL tTHL CL (see Note A) 3V FORCEOFF TEST CIRCUIT 0V −3 V −3 V 6V t THL or t TLH VOH 3V 3V Output SR(tr) = tTLH VOL VOLTAGE WAVEFORMS 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.
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MAX3221 SLLS348N – JUNE 1999 – REVISED JANUARY 2014 www.ti.com Parameter Measurement Information (continued) 3V Input 3 V or 0 V FORCEON VCC S1 1.5 V GND 0V 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) EN 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 VOLTAGE WAVEFORMS A. CL includes probe and jig capacitance. B.
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MAX3221 www.ti.com SLLS348N – JUNE 1999 – REVISED JANUARY 2014 Parameter Measurement Information (continued) 2.7 V 2.7 V 0V Receiver Input ROUT Generator (see Note B) 3V 0V −2.7 V −2.7 V −3 V 50 Ω tvalid tinvalid VCC Autopowerdown INVALID CL = 30 pF (see Note A) FORCEOFF FORCEON DIN DOUT INVALID Output 50% VCC 50% VCC 0V ten V+ ≈V+ Supply Voltages 0.3 V VCC 0V 0.3 V V− TEST CIRCUIT ≈V− VOLTAGE WAVEFORMS Valid RS-232 Level, INVALID High 2.7 V Indeterminate 0.
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MAX3221 SLLS348N – JUNE 1999 – REVISED JANUARY 2014 www.ti.com APPLICATION INFORMATION EN 1 16 2 15 VCC C1+ + 3 C1 + + − − V+ Autopowerdown C3† 4 − 14 GND 6 C2− 7 − RIN 12 C2 11 V− 10 C4 + DOUT C2+ + − CBYPASS = 0.1 µF C1− 13 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. Nonpolarized ceramic capacitors are acceptable.
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MAX3221 www.ti.com SLLS348N – JUNE 1999 – REVISED JANUARY 2014 REVISION HISTORY Changes from Revision M (March 2004) to Revision N Page • Updated document to new TI data sheet format - no specification changes. ...................................................................... 1 • Deleted Ordering Information table. ...................................................................................................................................... 1 • Added ESD warning. .......................
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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 21-Jan-2014 (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided.
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PACKAGE MATERIALS INFORMATION www.ti.com 21-Jan-2014 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 MAX3221CDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 MAX3221CPWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 MAX3221IDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.
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PACKAGE MATERIALS INFORMATION www.ti.com 21-Jan-2014 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) MAX3221CDBR SSOP DB 16 2000 367.0 367.0 38.0 MAX3221CPWR TSSOP PW 16 2000 367.0 367.0 35.0 MAX3221IDBR SSOP DB 16 2000 367.0 367.0 38.0 MAX3221IPWR TSSOP PW 16 2000 367.0 367.0 35.0 MAX3221IPWR TSSOP PW 16 2000 364.0 364.0 27.0 MAX3221IPWRG4 TSSOP PW 16 2000 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.