SP385EEA datasheet(2/11 Pages) SIPEX

Part #	SP385EEA

Description	Enhanced 3V or 5V RS-232 Line Driver/Receiver

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Manufacturer	SIPEX [Sipex Corporation]

Direct Link	http://www.sipex.com

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Rev. 10/22/01

SP385E Enhanced +3V to +5V RS-232 Line Driver/Receiver

2

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.

V

cc

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

+6V

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

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

Input Voltages

T

IN

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

-0.3 to (Vcc +0.3V)

R

IN

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

±15V

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

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

VCC = +3.3V ± 10%; cap on (V+) and (V-) = 1.0µF, C1 = C2 = 0.1µF; TMIN to TMAX unless otherwise noted.

PARAMETERS

MIN.

TYP.

MAX.

UNITS

CONDITIONS

TTL INPUT

Logic Threshold

Low

0.8

Volts

TIN ; ON/OFF Vcc = 3.3V

High

2.0

Volts

TIN ; ON/OFF Vcc = 3.3V

Logic Pullup Current

15

200

µAT

IN = 0V

Maximum Data Rate

120

kbps

CL = 2500pF, RL= 3kΩ

TTL OUTPUT

TTL/CMOS Output

Voltage, Low

0.5

Volts

IOUT = 3.2mA; Vcc = 3.3V

Voltage, High

2.4

Volts

IOUT = -1.0mA

Leakage Current; TA = +25°C

0.05

±10

µA

ON/OFF=0V, 0V

≤ V

OUT ≤

VCC

EIA-562 OUTPUT

Output Voltage Swing

±3.7

±4.2

Volts

All transmitter outputs loaded

with 3k

Ω to ground

Power-Off Output Resistance

300

Ω

VCC = 0V; VOUT = ±2V

Output Short Circuit Current

±10

mA

Infinite duration

EIA-562 INPUT

Voltage Range

-15

+15

Volts

Voltage Threshold

Low

0.8

1.2

Volts

VCC = 3.3V, TA = +25°C

High

1.7

2.4

Volts

VCC = 3.3V, TA = +25°C

Hysteresis

0.2

0.5

1.0

Volts

VCC = 3.3V, TA = +25°C

Resistance

3

5

7

k

Ω

VIN = 15V to –15V

DYNAMIC CHARACTERISTICS

Driver Propagation Delay

4.0

µs

TTL to RS-562

Receiver Propagation Delay

1.5

µs

RS-562 to TTL

Instantaneous Slew Rate

30

V/

µsC

L = 10pF, RL= 3kΩ - 7kΩ;

TA = +25°C

Transition Region Slew Rate

10

V/

µsC

L = 2500pF, RL= 3kΩ;

measured from +2V to -2V

or -2V to +2V

Output Enable Time

300

ns

Output Disable Time

1000

ns

POWER REQUIREMENTS

VCC Power Supply Current

3

6

mA

No load, TA= +25°C; VCC =

3.3V

8

mA

All transmitters RL =

3k

Ω

TA = +25°C

Shutdown Supply Current

0.010

5

µAV

CC = 3.3V, TA = +25°C

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