1

Date: 8/3/04

+ 5V Powered Multi-Channel RS-232 Drivers/Receivers

© Copyright 2004 Sipex Corporation

■ Operates from Single +5V Power Supply

■ Meets All RS-232D and V.28 Specifications

■ ±9V Output Swing with +5V Supply

■ Improved Driver Output Capacity for

Mouse Applications

■ Low Power Shutdown – 1µA

■ WakeUp Feature in Shutdown Mode

■ 3–State TTL/CMOS Receiver Outputs

■ ±30V Receiver Input Levels

■ Low Power CMOS – 5mA Operation

■ Wide Charge Pump Capacitor Value

Range – 1-10µF

DESCRIPTION…

The SP230A Series are multi–channel RS-232 line drivers/receivers that provide a variety of

configurations to fit most communication needs, especially where ±12V is not available. Some models

feature a shutdown mode to conserve power in battery-powered systems. Some require no external

components. All, except one model, feature a built-in charge pump voltage converter, allowing them

to operate from a single +5V power supply. All drivers and receivers meet all EIA RS-232D and CCITT

V.28 requirements. The Series is available in plastic DIP and SOIC packages.

SELECTION TABLE

No. of

No. of

Power

RS-232

RS-232

External

Low Power

TTL

Wake- No. of

Model

Supplies

Drivers

Rcvrs

Components

Shutdown 3–State

Up

Pins

SP230A

+5V

5

0

4 Capacitors

Yes

No

No

20

SP234A

+5V

4

0

4 Capacitors

No

No

No

16

SP235A

+5V

5

5

None

Yes

Yes

No

24

SP235B

+5V

5

5

None

Yes

Yes

Yes

24

SP236A

+5V

4

3

4 Capacitors

Yes

Yes

No

24

SP236B

+5V

4

3

4 Capacitors

Yes

Yes

Yes

24

SP237A

+5V

5

3

4 Capacitors

No

No

No

24

SP238A

+5V

4

4

4 Capacitors

No

No

No

24

SP240A

+5V

5

5

4 Capacitors

Yes

Yes

No

44

SP240B

+5V

5

5

4 Capacitors

Yes

Yes

Yes

44

SP241A

+5V

4

5

4 Capacitors

Yes

Yes

No

28

SP241B

+5V

4

5

4 Capacitors

Yes

Yes

Yes

28

SP230A/234A/235A/236A/237A/238A/241A

SP235B/236B/240A/240B/241A/241B

+5V Powered Multi-Channel RS-232 Drivers/Receivers

®

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

T OUT

T OUT

T IN

T IN

V-

C -

C +

C -

3

4

2

2

1

T OUT

T OUT

T IN

T IN

GND

V

C +

V+

1

2

CC

1

2

1

3

4

Now Available in Lead Free Packaging