Date: 10/17/ 05

SP232A Series Enhanced RS232 Transceivers

© Copyright 2005 Sipex Corporation

2

This is a stress rating only and functional operation of the device at

these or any other conditions above those indicated in the operation

sections of this specification is not implied. Exposure to absolute

maximum rating conditions for extended periods of time may affect

reliability.

V

cc

.................................................................................................................................................................

+6V

Input Voltages

T

IN

.........................................................................................................................

-0.3 to (Vcc +0.3V)

R

IN

............................................................................................................................................................

±30V

V

PARAMETERS

MIN.

TYP.

MAX.

UNITS

CONDITIONS

TTL INPUT

Logic Threshold

LOW

0.8

Volts

T

HIGH

2.0

Volts

T

Logic Pull-Up Current

15

200

µAT

TTL OUTPUT

TTL/CMOS Output

Voltage, Low

0.4

Volts

I

Voltage, High

3.5

Volts

I

Leakage Current; T

0.05

±10

µA

EN = V

≤V

SP310A and SP312A only

RS-232 OUTPUT

Output Voltage Swing

±5

±6

Volts

All transmitter outputs loaded

with 3kΩ to Ground

Output Resistance

300

Ohms

V

Output Short Circuit Current

±18

mA

Infinite duration

Maximum Data Rate

120

240

Kbps

C

RS-232 INPUT

Voltage Range

-30

+30

Volts

Voltage Threshold

LOW

0.8

1.2

Volts

V

HIGH

1.7

2.4

Volts

V

Hysteresis

0.2

0.5

1.0

Volts

V

Resistance

3

5

7

kΩ

T

DYNAMIC CHARACTERISTICS

Driver Propagation Delay

1.5

3.0

µs

TTL to RS-232; C

Receiver Propagation Delay

0.1

1.0

µs

RS-232 to TTL

Instantaneous Slew Rate

30

V/µsC

T

Transition Region Slew Rate

10

V/µsC

measured from +3V to -3V

or -3V to +3V

Output Enable Time

400

ns

SP310A and SP312A only

Output Disable Time

250

ns

SP310A and SP312A only

POWER REQUIREMENTS

V

SP232A

35

mA

No load, T

SP233A, SP310A, SP312A

10

15

mA

No load, T

V

SP232A

15

mA

All transmitters R

T

°C

SP233A, SP310A, SP312A

25

mA

All transmitters R

T

Shutdown Supply Current

SP310A,SP312A

1

10

µAV

ELECTRICAL CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

Output Voltages

T

OUT

....................................................................................................

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

R

OUT

................................................................................................................

-0.3V to (Vcc +0.3V)

Short Circuit Duration

T

OUT

.........................................................................................................................................

Continuous

Plastic DIP .......................................................................... 375mW

(derate 7mW/°C above +70°C)

Small Outline ...................................................................... 375mW

(derate 7mW/°C above +70°C)