Rev.4/08/02

SP3249E Intelligent +3.0V to +5.5V RS-232 Transceivers

© Copyright 2002 Sipex Corporation

2

ABSOLUTE MAXIMUM RATINGS

These are stress ratings only and functional operation

of the device at these ratings or any other above those

indicated in the operation sections of the specifications

below is not implied. Exposure to absolute maximum

rating conditions for extended periods of time may

affect reliability and cause permanent damage to the

device.

V

V+ (NOTE 1).......................................-0.3V to +7.0V

V- (NOTE 1)........................................+0.3V to -7.0V

V+ + |V-| (NOTE 1)...........................................+13V

I

SPECIFICATIONS

V

+ 10%), T

Typical values are at T

Note 1: V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.

Input Voltages

TxIN ...................................................-0.3V to +6.0V

RxIN...................................................................+25V

Output Voltages

TxOUT.............................................................+13.2V

RxOUT,......................................-0.3V to (V

Short-Circuit Duration

TxOUT.....................................................Continuous

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

°C to +150°C

PARAMETER

MIN.

TYP.

MAX.

UNITS

CONDITIONS

Supply Current

0.3

1.0

mA

LOGIC INPUTS AND RECEIVER OUTPUTS

Input Logic Threshold

LOW

0.8

V

HIGH

2.4

V

Input Leakage Current

±0.01

±1.0

µA

Output Voltage LOW

0.4

V

Output Voltage HIGH

V

DRIVER OUTPUTS

Output Voltage Swing

±5.0

±5.4

V

All driver outputs loaded with

3K

Ω to GND

Output Resistance

300

Ω

Output Short-Circuit Current

±35

±60

mA

RECEIVER INPUTS

Input Voltage Range

-25

25

V

Input Threshold LOW

0.6

1.2

V

Input Threshold LOW

0.8

1.5

V

Input Threshold HIGH

1.5

2.4

V

Input Threshold HIGH

1.8

2.4

V

Input Hysteresis

0.5

V

Input Resistance

3

5

7

k

Ω