SN65C3223, SN75C3223

3V TO 5.5V MULTICHANNEL RS232 COMPATIBLE LINE DRIVER/RECEIVER

SLLS538B − JUNE 2002 − REVISED OCTOBER 2004

1

POST OFFICE BOX 655303

JESD 78, Class II

±15 kV Using Human-Body Model (HBM)

− Battery-Powered Systems, PDAs,

Notebooks, Laptops, Palmtop PCs, and

Hand-Held Equipment

description/ordering information

The SN65C3223 and SN75C3223 consist of two line drivers, two line receivers, and a dual charge-pump circuit

with

±15-kV ESD protection pin to pin (serial-port connection pins, including GND). The 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. The devices

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

µs to 150 V/µs

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 device does not sense a valid RS-232 signal, the driver outputs are disabled. If FORCEOFF

is set low and EN is high, both drivers and receivers are shut off, and the supply current is reduced to 1

µA.

Disconnecting the serial port or turning off the peripheral drivers causes auto-powerdown 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 any receiver input. The INVALID output

is used to notify the user if an RS-232 signal is present at any receiver input. INVALID is high (valid data) if any

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 4 for receiver input levels.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

SOIC − DW

Tube of 25

SN75C3223DW

75C3223

SOIC − DW

Reel of 2000

SN75C3223DWR

75C3223

0

°C to 70°C

SSOP − DB

Reel of 2000

SN75C3223DBR

CA3223

0 C to 70 C

TSSOP − PW

Tube of 70

SN75C3223PW

CA3223

TSSOP − PW

Reel of 2000

SN75C3223PWR

CA3223

SOIC − DW

Tube of 25

SN65C3223DW

65C3223

SOIC − DW

Reel of 2000

SN65C3223DWR

65C3223

−40

°C to 85°C

SSOP − DB

Reel of 2000

SN65C3223DBR

CB3223

−40 C to 85 C

TSSOP − PW

Tube of 70

SN65C3223PW

CB3223

TSSOP − PW

Reel of 2000

SN65C3223PWR

CB3223

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

Copyright

 2004, Texas Instruments Incorporated

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.

DB, DW, OR PW PACKAGE

(TOP VIEW)

1

2

3

4

5

6

7

8

9

10

20

19

18

17

16

15

14

13

12

11

EN

C1+

V+

C1−

C2+

C2−

V−

DOUT2

RIN2

ROUT2

FORCEOFF

GND

DOUT1

RIN1

ROUT1

FORCEON

DIN1

DIN2

INVALID

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.