Absolute Maximum Ratings (Note 1)

If Military/Aerospace specified devices are required,

please contact the National Semiconductor Sales Office/

Distributors for availability and specifications.

V

S

−0.3V to 6V

V+

(V

V−

+0.3V to −14V

Driver Input Voltage, T

IN

−0.3V to (V+ +0.3V)

Receiver Input Voltage, R

IN

Driver Output Voltage T

O

(V− −0.3V to (V+ + 0.3V)

Receiver Output Voltage R

O

−0.3 to (V

Short Circuit Duration, T

O

Continuous

ESD Rating

IEC 1000-4-2) (Note 7)

(Note 8)

Air-Gap Discharge

15kV

Contact Discharge

8kV

Human Body Model (Note 2)

(Note 8)

15kV

(Note 9)

2kV

ESD Rating (MM)

200V (Note 6) (Note 9)

Soldering Information

Infrared or Convection

235˚C

(20sec.)

Junction Temperature

150˚C

Storage Temperature Range

−65˚C to +150˚C

Operating Ratings

Supply Voltage V

S

4.5V to 5.5V

Ambient Temperature Range, T

A

Commercial (C)

0˚C to +70˚C

Industrial (I)

−40˚C to +85˚C

Package Thermal Resistance

(Note 3)

SO

71˚C/W

WSO

55˚C/W

Electrical Characteristics

Over recommended operating supply and temperature ranges unless otherwise specified C1 = C2 = C3 = C4 = Cbp = 0.1µF

Symbol

Parameter

Conditions

Min

(Note 5)

Typ

Max

(Note 5)

Units

DC Characteristics

I

S

Supply Current

No Load, T

1

7

mA

Logic

I

INPUT

Input Leakage Current

T

µA

V

THL

Input Logic Theshold Low

T

IN

0.8

V

V

THH

Input Logic Theshold High

T

IN

2.0

V

V

OL

TTL/CMOS Output Voltage

Low

R

0.4

V

V

OH

TTL/CMOS Output Voltage

High

R

3.5

V

V

RS-232 Receiver Inputs

V

RI

Receiver Input Voltage

Range

−30

+30

V

V

RTHL

Receiver Input Theshold

Low

V

0.8

1.4

V

V

RTHH

Receiver Input Theshold

High

V

2

2.4

V

V

HYST

Receiver Input Hysteresis

V

0.2

0.6

1.0

V

R

I

Receiver Input Resistance

V

3

5

7

k

Ω

RS-232 Transmitter Outputs

V

O

Transmitter Output Voltage

Swing

All transmitters loaded with 3k

Ω to GND

R

O

Output Resistance

V

V

300

Ω

I

OS

Output Short Circuit Current

mA

Timing Characteristics

DR

Maximum Data Rate

C

R

Ω to 7kΩ

230

kbps

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