SP233A datasheet(2/8 Pages) SIPEX

2 / 8 page

SP231ADS/01

SP231A Enhanced RS-232 Line Drivers/Receivers

ABSOLUTE MAXIMUM RATINGS

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.

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

+6V

V+ .................................................................................................................... (Vcc-0.3V) to +13.2V

V- .............................................................................................................................................................. 13.2V

Input Voltages

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

-0.3 to (Vcc +0.3V)

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

±30V

Output Voltages

OUT

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

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

OUT

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

-0.3V to (Vcc +0.3V)

Short Circuit Duration

OUT

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

Continuous

Power Dissipation

CERDIP .............................................................................. 675mW

(derate 9.5mW/

°C above +70°C)

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

(derate 7mW/

°C above +70°C)

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

(derate 7mW/

°C above +70°C)

SPECIFICATIONS

CC=+5V±10%; V+=+8.5V to +13.2V (SP231A only) 0.1µF charge pump capacitors; TMIN to TMAX

unless otherwise noted.

PARAMETERS

MIN.

TYP.

MAX.

UNITS

CONDITIONS

TTL INPUT

Logic Threshold

LOW

0.8

Volts

IN ; EN, SD

HIGH

2.0

Volts

IN ; EN, SD

Logic Pullup Current

200

µAT

IN = 0V

Maximum Data Rate

120

kbps

L = 2500pF, RL= 3kΩ

TTL OUTPUT

TTL/CMOS Output

Voltage, Low

0.4

Volts

OUT = 3.2mA; Vcc = +5V

Voltage, High

3.5

Volts

OUT = -1.0mA

Leakage Current **; T

A = +25°

0.05

±10

µA

EN = V

CC, 0V≤VOUT ≤VCC

RS-232 OUTPUT

Output Voltage Swing

±5

±9

Volts

All transmitter outputs loaded

with 3k

Ω to Ground

Output Resistance

300

Ohms

CC = 0V; VOUT =

±2V

Output Short Circuit Current

±18

Infinite duration

RS-232 INPUT

Voltage Range

-30

+30

Volts

Voltage Threshold

LOW

0.8

1.2

Volts

CC = 5V, TA = +25°C

HIGH

1.7

2.4

Volts

CC = 5V, TA = +25°C

Hysteresis

0.2

0.5

1.0

Volts

CC = 5V, TA = +25°C

Resistance

Ω

A = +25°C, -15V ≤ VIN ≤ +15V

DYNAMIC CHARACTERISTICS

Propagation Delay, RS232 to TTL

1.5

µs

Instantaneous Slew Rate

µsC

L = 10pF, RL= 3-7kΩ;

A =+25°C

Transition Region Slew Rate

µsC

L = 2500pF, RL= 3kΩ;

measured from +3V to -3V

or -3V to +3V

Output Enable Time **

400

SP310A and SP312A only

Output Disable Time **

250

SP310A and SP312A only

POWER REQUIREMENTS

CC Power Supply Current

No load, T

A= +25°C; VCC = 5V

All transmitters R

L = 3kΩ;

= +25

°C

V+ Power Supply Current ***

No load, V+ = 12V,T

A=+25°C

Shutdown Supply Current **

µAV

CC = 5V, TA = +25°C

**SP310A and SP312A only; *** SP231A only

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