Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (50)668-7000 • Fax (50)668-707 • www.exar.com SP206, 207, 208, 2_0_060

2

AbSOlUTE MAxIMUM RATINgS

These are stress ratings only and functional opera-

tion of the device at these ratings or any other above

those indicated in the operation sections of the speci-

fications below are not implied. Exposure to absolute

maximum ratings conditions for extended periods of

time may affect reliability.

V+........................................................................... (Vcc-0.3V) to +3.2V

V- .............................................................................-3.2V

Input Voltages

Tin.....................................................-0.3V to (Vcc + 0.3V)

Rin............................................................................+/-20V

Output Voltages

Tout...............................................(V+, +0.3V) to (V-, -0.3V

Rout...................................................-0.3V to (Vcc + 0.3V)

Short Circuit duration on Tout...........................Continuous

Package Power Dissipation:

24-pin SSOP

(derate .2mW/°C above +70°C..............900mW

24-pin WSOIC

(derate 2.5mW/°C above +70°C............000mW

28-pin SSOP

(derate .2mW/°C above +70°C..............900mW

28-pin WSOIC

(derate 2.7mW/°C above +70°C............000mW

Storage Temperature..................-65°C to +50°C

Lead Temperature (soldering, 0s).......... +300°C

ElECTRICAl CHARACTERISTICS

PARAMETER

TEST CONDITIONS

MIN

TYP

MAx

UNIT

TTl INPUT

Logic Threshold LOW, V

iL

Tin, En, SD

0.8

Volts

Logic Threshold HIGH, V

iH

Tin, En, SD

2.0

Volts

Logic Pull-Up Current

Tin = 0V

5

200

μA

Maximum Data Rate

C

20

kbps

TTl OUTPUT

Output Voltage LOW, V

OL

0.4

Volts

Output Voltage HIGH, V

OH

3.5

Volts

Leakage Current

0.05

+/-0

μA

RS-232 OUTPUT

output Voltage Swing

all Transmitter outputs loaded

with 3k ohms to GND

+/-5.0

+/-7

Volts

Output Resistance

Vcc = 0V, Vout = +/-2V

300

Ohms

Output Short Circuit Current

Infinite Duration

+/-25

mA

RS-232 INPUT

Voltage Range

-5

+5

Volts

Voltage Threshold LOW

0.8

.2

Volts

Voltage Threshold HIGH

.7

2.4

Volts

Hysteresis

Vcc = 5V

0.2

0.5

.0

Volts

Resistance

3

5

7

kΩ