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SLLS513A − AUGUST 2001 − REVISED MARCH 2004

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D Single-Chip and Single-Supply Interface for

Two IBM PC/AT Serial Ports

D Meet or Exceed the Requirements of

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

D Operate With 3-V to 5.5-V V

Supply

D Always-Active Noninverting Receiver

Output (ROUT2

) Per Port

D Operate Up To 250 kbit/s

D Low Standby Current...1 µA Typical

D External Capacitors ...4 × 0.22 µF

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

D Allow for Flexible Power Down of Either

Serial Port

D Serial-Mouse Driveability

D RS-232 Bus-Pin ESD Protection Exceeds

±15 kV Using Human-Body Model (HBM)

D Applications

− Battery-Powered Systems, Notebooks,

Laptops, Palmtop PCs, and Hand-Held

Equipment

description/ordering information

The SN65C23243 and SN75C23243 consist of

two ports, each containing three line drivers and

five line receivers, and a dual charge-pump circuit

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

connection pins, including GND). These devices meet the requirements of TIA/EIA-232-F and provide the

electrical interface between an asynchronous communication controller and the serial-port connector. This

combination of drivers and receivers matches that needed for two typical serial ports used in an IBM PC/AT, or

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

supply. In addition, these devices include an always-active noninverting output (ROUT2

) per port, which allows

applications using the ring indicator to transmit data while the devices are powered down. The 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 (DL)

Tube of 25 SN75C23243DL

75C23243

−0°C to 70°C

SSOP (DL)

Reel of 1000 SN75C23243DLR

75C23243

−0 C to 70 C

TSSOP (DGG) Reel of 2000 SN75C23243DGGR 75C23243

SSOP (DL)

Tube of 25 SN65C23243DL

65C23243

−40°C to 85°C

SSOP (DL)

Reel of 1000 SN65C23243DLR

65C23243

−40 C to 85 C

TSSOP (DGG) Reel of 2000 SN65C23243DGGR 65C23243

†

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.

DGG OR DL PACKAGE

(TOP VIEW)

RIN5A

RIN4A

RIN3A

RIN2A

RIN1A

INVA

DOUT3A

DOUT2A

DOUT1A

FORCEOFFA

C2−

C2+

GND

FORCEOFFB

DOUT1B

DOUT2B

DOUT3B

INVB

RIN1B

RIN2B

RIN3B

RIN4B

RIN5B

ROUT5A

ROUT4A

ROUT3A

ROUT2A

ROUT1A

ROUT2A

DIN3A

DIN2A

DIN1A

FORCEON

V−

V+

C1+

C1−

GND

DIN1B

DIN2B

DIN3B

ROUT2B

ROUT1B

ROUT2B

ROUT3B

ROUT4B

ROUT5B

IBM is a trademark of International Business Machines Corporation.

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Summary of content (19 pages)

PAGE 1
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 D Single-Chip and Single-Supply Interface for D D D D D D D D D D D DGG OR DL PACKAGE (TOP VIEW) Two IBM PC/AT Serial Ports Meet or Exceed the Requirements of TIA/EIA-232-F and ITU v.28 Standards Operate With 3-V to 5.5-V VCC Supply Always-Active Noninverting Receiver Output (ROUT2) Per Port Operate Up To 250 kbit/s Low Standby Current . . . 1 µA Typical External Capacitors . . . 4 × 0.
PAGE 2
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 description/ordering information (continued) Flexible control options for power management are available when either or both serial ports are inactive. The auto-powerdown feature functions when FORCEON is low and FORCEOFF is high. During this mode of operation, if the device does not sense a valid RS-232 signal, the driver outputs of its respective port are disabled.
PAGE 3
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 logic diagram (positive logic) RIN5A RIN4A RIN3A RIN2A RIN1A 1 48 2 47 3 46 4 45 5 44 43 INVA DOUT3A DOUT2A DOUT1A 6 ROUT4A ROUT3A ROUT2A ROUT1A ROUT2A Auto-powerdown 7 42 8 41 9 40 39 FORCEOFFA ROUT5A DIN3A DIN2A DIN1A FORCEON 10 Charge Pump FORCEOFFB DOUT1B DOUT2B DOUT3B INVB 15 16 33 17 32 18 31 19 RIN2B RIN3B RIN4B RIN5B DIN2B DIN3B Auto-powerdown 30 RIN1B DIN1B 20 2
PAGE 4
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 timing Figure 1 shows how the two independent serial ports can be enabled or disabled. As shown by the logic states, depending on the FORCEOFF, FORCEON, and receiver input levels, either port can be powered down. Intermediate receiver input levels indicate a 0-V input. Also, it is assumed a pulldown resistor to ground is used for the receiver outputs.
PAGE 5
SLLS513A − AUGUST 2001 − 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 6
SLLS513A − AUGUST 2001 − 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 7) PARAMETER VOH VOL VO IIH IIL TEST CONDITIONS MIN TYP† MAX UNIT High-level output voltage All DOUT at RL = 3 kΩ to GND 5 5.4 V Low-level output voltage All DOUT at RL = 3 kΩ to GND −5 −5.
PAGE 7
SLLS513A − AUGUST 2001 − 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 7) PARAMETER VOH VOL MIN TYP† VCC − 0.6 V VCC − 0.1 V 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 8
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 AUTO-POWERDOWN SECTION electrical characteristics over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6) PARAMETER TEST CONDITIONS MIN VT+(valid) Receiver input threshold for INV high-level output voltage FORCEON = GND, FORCEOFF = VCC VT−(valid) Receiver input threshold for INV high-level output voltage FORCEON = GND, FORCEOFF = VCC −2.
PAGE 9
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 PARAMETER MEASUREMENT INFORMATION 3V Generator (see Note B) Input RS-232 Output 50 Ω RL CL (see Note A) 3V FORCEOFF TEST CIRCUIT 0V tTHL Output 6V SR(tr) + t THL or t TLH 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.
PAGE 10
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 PARAMETER MEASUREMENT INFORMATION 3V Input 3 V or 0 V FORCEON VCC S1 1.5 V GND −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.
PAGE 11
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 PARAMETER MEASUREMENT INFORMATION 2.7 V 2.7 V 0V Receiver Input 0V 50 Ω tvalid 50% VCC 50% VCC 0V ten INV CL = 30 pF (see Note A) ≈V+ V+ 0.3 V VCC 0V 0.3 V Supply Voltages FORCEOFF FORCEON tinvalid DIN −3 V VCC INV Output Autopowerdown −2.7 V −2.
PAGE 12
SLLS513A − AUGUST 2001 − REVISED MARCH 2004 APPLICATION INFORMATION 36 C1+ 12 + C2 − 11 38 GND 13, 34 RIN3 RIN4 RIN5 DOUT1 DOUT2 C3† + CBYPASS − = 0.
PAGE 13
PACKAGE OPTION ADDENDUM www.ti.
PAGE 14
PACKAGE OPTION ADDENDUM www.ti.com 27-Sep-2007 provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
PAGE 15
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 TAPE AND REEL INFORMATION *All dimensions are nominal Device SN65C23243DGGR Package Package Pins Type Drawing TSSOP SPQ Reel Reel Diameter Width (mm) W1 (mm) A0 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant DGG 48 2000 330.0 24.4 8.6 15.8 1.8 12.0 24.0 Q1 SN65C23243DLR SSOP DL 48 1000 330.0 32.4 11.35 16.2 3.1 16.0 32.0 Q1 SN75C23243DGGR TSSOP DGG 48 2000 330.0 24.4 8.6 15.8 1.8 12.0 24.
PAGE 16
PACKAGE MATERIALS INFORMATION www.ti.com 11-Mar-2008 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) SN65C23243DGGR TSSOP DGG 48 2000 346.0 346.0 41.0 SN65C23243DLR SSOP DL 48 1000 346.0 346.0 49.0 SN75C23243DGGR TSSOP DGG 48 2000 346.0 346.0 41.0 SN75C23243DLR SSOP DL 48 1000 346.0 346.0 49.
PAGE 17
MECHANICAL DATA MSSO001C – JANUARY 1995 – REVISED DECEMBER 2001 DL (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0.025 (0,635) 0.0135 (0,343) 0.008 (0,203) 48 0.005 (0,13) M 25 0.010 (0,25) 0.005 (0,13) 0.299 (7,59) 0.291 (7,39) 0.420 (10,67) 0.395 (10,03) Gage Plane 0.010 (0,25) 1 0°–ā8° 24 0.040 (1,02) A 0.020 (0,51) Seating Plane 0.110 (2,79) MAX 0.004 (0,10) 0.008 (0,20) MIN PINS ** 28 48 56 A MAX 0.380 (9,65) 0.630 (16,00) 0.730 (18,54) A MIN 0.370 (9,40) 0.
PAGE 18
MECHANICAL DATA MTSS003D – JANUARY 1995 – REVISED JANUARY 1998 DGG (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE 48 PINS SHOWN 0,27 0,17 0,50 48 0,08 M 25 6,20 6,00 8,30 7,90 0,15 NOM Gage Plane 1 0,25 24 0°– 8° A 0,75 0,50 Seating Plane 0,15 0,05 1,20 MAX PINS ** 0,10 48 56 64 A MAX 12,60 14,10 17,10 A MIN 12,40 13,90 16,90 DIM 4040078 / F 12/97 NOTES: A. B. C. D. All linear dimensions are in millimeters. This drawing is subject to change without notice.
PAGE 19
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.