Datasheet

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FEATURES

DB OR PW PACKAGE

(TOP VIEW)

C1+

V+

C1−

C2+

C2−

V−

RIN

FORCEOFF

GND

DOUT

FORCEON

DIN

INVALID

ROUT

APPLICATIONS

DESCRIPTION/ORDERING INFORMATION

SN65C3221E , , SN75C3221E

www.ti.com

.................................................................................................................................................. SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009

3-V TO 5.5-V SINGLE-CHANNEL RS-232 1-Mbit/s LINE DRIVER/RECEIVER

WITH ± 15-kV IEC ESD PROTECTION

• ESD Protection for RS-232 Pins

– ± 15-kV Human-Body Model (HBM)

– ± 8-kV IEC 61000-4-2 Contact Discharge

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

• Operate With 3-V to 5.5-V V

Supply

• Operate up to 1 Mbit/s

• Low Standby Current . . . 1 µ A Typ

• External Capacitors . . . 4 × 0.1 µ F

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

• RS-232 Bus-Pin ESD Protection Exceeds ± 15

kV Using Human-Body Model (HBM)

• Auto-Powerdown Feature Automatically

Disables Drivers for Power Savings

• Battery-Powered, Hand-Held, and Portable

Equipment

• PDAs and Palmtop PCs

• Notebooks, Sub-Notebooks, and Laptops

• Digital Cameras

• Mobile Phones and Wireless Devices

The SN65C3221E and SN75C3221E consist of one line driver, one line receiver, and a dual charge-pump circuit

with ± 15-kV IEC ESD protection pin to pin (serial-port connection pins, including GND). These devices provide

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. These devices

operate at data signaling rates up to 1 Mbit/s and a driver output slew rate of 24 V/ µ s to 150 V/ µ s.

Flexible control options for power management are available when the serial port is inactive. The

auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of

operation, if the devices do not sense a valid RS-232 signal on the receiver input, the driver output is disabled. If

FORCEOFF is set low and EN is high, both the driver and receiver are shut off, and the supply current is

reduced to 1 µ A. Disconnecting the serial port or turning off the peripheral drivers causes the auto-powerdown

condition to occur. Auto-powerdown can be disabled when FORCEON and FORCEOFF are high. With

auto-powerdown enabled, the device is activated automatically when a valid signal is applied to the receiver

input. The INVALID output notifies the user if an RS-232 signal is present 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 µ s. INVALID is low (invalid data) if the receiver input voltage is between – 0.3 V and

0.3 V for more than 30 µ s. See 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
SN65C3221E,, SN75C3221E www.ti.com .................................................................................................................................................. SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 3-V TO 5.
PAGE 2
SN65C3221E,, SN75C3221E SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.
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SN65C3221E,, SN75C3221E www.ti.com ..................................................................................................................................................
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SN65C3221E,, SN75C3221E SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com Table 1. 1-Mbit/s RS-232 Parts DRIVER NO. RECEIVER NO. ESD SUPPLY VCC (V) FEATURE PIN/PACKAGE SN65C3221E 1 1 ±15-kV Air-Gap, ±8-kV Contact, ±15-kV HBM 3.3 or 5 Auto powerdown 16-pin SOIC, SSOP, TSSOP SN65C3232E 2 2 ±15-kV Air-Gap, ±8-kV Contact, ±15-kV HBM 3.
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SN65C3221E,, SN75C3221E www.ti.com .................................................................................................................................................. SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 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.
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SN65C3221E,, SN75C3221E SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.
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SN65C3221E,, SN75C3221E www.ti.com .................................................................................................................................................. SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 RECEIVER SECTION abc Electrical Characteristics (1) over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER MIN TYP (2) VCC – 0.6 V VCC – 0.
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SN65C3221E,, SN75C3221E SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.
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SN65C3221E,, SN75C3221E www.ti.com .................................................................................................................................................. SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 PARAMETER MEASUREMENT INFORMATION FORCEON 3V Generator (see Note B) 3V Input RS-232 Output 50 Ω RL 0V tTHL CL (see Note A) 3V FORCEOFF 3V 3V Output −3 V −3 V 6V SR(tr) + t THL or tTLH TEST CIRCUIT tTLH VOH VOL VOLTAGE WAVEFORMS NOTES: A.
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SN65C3221E,, SN75C3221E SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com PARAMETER MEASUREMENT INFORMATION 3V Input VCC 1.5 V GND S1 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 tPLZ (S1 at VCC) tPZL (S1 at VCC) 0.
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SN65C3221E,, SN75C3221E www.ti.com .................................................................................................................................................. SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 PARAMETER MEASUREMENT INFORMATION 2.7 V EN = GND 3V 0V Receiver Input 0V ROUT Generator (see Note B) 2.7 V −2.7 V −2.
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SN65C3221E,, SN75C3221E SLLS694B – NOVEMBER 2005 – REVISED APRIL 2009 .................................................................................................................................................. www.ti.com APPLICATION INFORMATION EN 16 1 2 15 VCC C1+ + 3 C1 + + − − V+ Autopowerdown C3(1) 4 − 14 GND 13 6 C2− 7 RIN 12 C2 11 V− 10 C4 + DOUT C2+ + − CBYPASS = 0.
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PACKAGE OPTION ADDENDUM www.ti.
PAGE 14
PACKAGE OPTION ADDENDUM www.ti.com 14-Apr-2009 TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Jul-2012 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 SN65C3221EDBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 SN65C3221EPWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 SN75C3221EDBR 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 14-Jul-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65C3221EDBR SSOP DB 16 2000 367.0 367.0 38.0 SN65C3221EPWR TSSOP PW 16 2000 367.0 367.0 35.0 SN75C3221EDBR SSOP DB 16 2000 367.0 367.0 38.0 SN75C3221EPWR 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.