6-4

TELCOM SEMICONDUCTOR, INC.

ABSOLUTE MAXIMUM RATINGS*

Input Voltages

Output Voltages

Short Circuit Duration

Storage Temperature Range .................. -65

°C to +150°C

CerDIP ............................................................ 890mW

Derate 9.5 mW/

°C Above +70°C

Plastic DIP ...................................................... 840mW

Derate 7 mW/

°C Above +70°C

Small Outline (SOIC) ...................................... 760mW

Derate 7 mW/

°C Above +70°C

otherwise noted.

Parameter

Test Conditions

Min

Typ

Max

Unit

Output Voltage Swing

±5

±9

±10

V

3 k

Ω to Ground

Power Supply Current

—

5

10

mA

Input Logic Threshold Low

—

—

0.8

V

Input Logic Threshold High

2—

—

V

Logic Pull-Up Current

—

15

200

µA

RS-232 Input Voltage Operating Range

– 30

—

+30

V

RS-232 Input Threshold Low

0.8

1.2

—

V

RS-232 Input Threshold High

—

1.7

2.4

V

RS-232 Input Hysteresis

0.2

0.5

1

V

RS-232 Input Resistance

3

5

7

k

Ω

TTL/CMOS Output Voltage Low

—

—

0.4

V

TTL/CMOS Output Voltage High

3.5

—

—

V

Propagation Delay

RS-232 to TTL or TTL to RS-232

—

0.5

—

µsec

Instantaneous Slew Rate

—

30

V/

µsec

Transition Region Slew Rate

—

3

—

V/

µsec

Measured From +3V to – 3V

or –3V to +3V

Output Resistance

300

—

—

Ω

RS-232 Output

—

±10

—

mA

Short-Circuit Current

NOTE 1. Sample tested.

*Static-sensitive device. Unused devices must be stored in conductive

material. Protect devices from static discharge and static fields. Stresses

above those listed under "Absolute Maximum Ratings" may cause perma-

nent damage to the device. These are stress ratings only and functional

operation of the device at these or any other conditions above those

indicated in the operation sections of the specifications is not implied.

Exposure to absolute maximum rating conditions for extended periods may

affect device reliability.

TC232

DUAL RS-232 TRANSMITTER/

RECEIVER AND POWER SUPPLY