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HIN230

+5V Powered RS-232 Transmitters/Receivers

Harris Semiconductor 

HIN230 thru HIN241 S E M I C O N D U C T O R

August 1997

+5V Powered RS-232 Transmitters/Receivers

Features

• Meets All RS-232E and V.28 Specifications

• Requires Only Single +5V Power Supply

- (+5V and +12V - HIN231 and HIN239)

• HIN233 and HIN235 Require No External Capacitors

• Onboard Voltage Doubler/Inverter

• Low Power Consumption

• Low Power Shutdown Function

• Three-State TTL/CMOS Receiver Outputs

• Multiple Drivers

- ±10V Output Swing for +5V lnput

- 300Ω Power-Off Source Impedance

- Output Current Limiting

- TTL/CMOS Compatible

- 30V/µs Maximum Slew Rate

• Multiple Receivers

- ±30V Input Voltage Range

- 3kΩ to 7kΩ Input Impedance

- 0.5V Hysteresis to Improve Noise Rejection

Description

The HIN230-HIN241 family of RS-232 transmitters/receivers

interface circuits meet all ElA RS-232E and V.28 specifications,

and are particularly suited for those applications where ±12V is

not available. They require a single +5V power supply (except

HIN231 and HIN239) and features onboard charge pump volt-

age converters which generate +10V and -10V supplies from

the 5V supply. The HIN233 and HIN235 require no external

capacitors and are ideally suited for applications where circuit

board space is critical. The family of devices offer a wide variety

of RS-232 transmitter/receiver combinations to accommodate

various applications (see Selection Table).

The drivers feature true TTL/CMOS input compatibility, slew-

rate-limited output, and 300Ω power-off source impedance.

The receivers can handle up to ±30V, and have a 3kΩ to 7kΩ

input impedance. The receivers also feature hysteresis to

greatly improve noise rejection.

Applications

• Any System Requiring RS-232 Communications Port

- Computer - Portable, Mainframe, Laptop

- Peripheral - Printers and Terminals

- Instrumentation

- Modems

Selection Table

PART

NUMBER

HIN230

HIN231

HIN232

HIN233

HIN234

HIN235

HIN236

HIN237

HIN238

HIN239

HIN240

HIN241

POWER SUPPLY

VOLTAGE

NUMBER OF

RS-232

DRIVERS

NUMBER OF

RS-232

RECEIVERS

+5V

5

0

+5V and +7.5V to 13.2V

2

2

+5V

2

2

+5V

2

2

+5V

4

0

+5V

5

5

+5V

4

3

+5V

5

3

+5V

4

4

+5V and +7.5V to 13.2V

3

5

+5V

5

5

+5V

4

5

EXTERNAL

COMPONENTS

4 Capacitors

2 Capacitors

4 Capacitors

None

4 Capacitors

None

4 Capacitors

4 Capacitors

4 Capacitors

2 Capacitors

4 Capacitors

4 Capacitors

LOW POWER

SHUTDOWN/TTL

THREE-STATE

YES/NO

NO/NO

NO/NO

NO/NO

NO/NO

YES/YES

YES/YES

NO/NO

NO/NO

NO/YES

YES/YES

YES/YES

NUMBER OF

LEADS

20

16

16

20

16

24

24

24

24

24

44

28

CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.

Copyright © Harris Corporation 1997

8-29

File Number 3138.4

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