SP385ECT-LSLASHTR datasheet(4/16 Pages) EXAR

4 / 16 page

Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 510-668-7017 • www.exar.com

SP385E_100_030811

ELECTRICAL CHARACTERISTICS

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

PARAMETER

MIN.

TyP.

MAX. UNITS CONDITIONS

TTL INPUT

Input Logic Threshold LOW

0.8

TxIN, ON/OFF

Input Logic Threshold HIGH

2.0

TxIN, ON/OFF

Logic Pullup Current

200

µA

IN = 0V

Maximum Data Rate

120

kbps

L = 2500pF, RL = 3kΩ

TTL OUTPUT

TTL/CMOS Output

Voltage LOW

0.4

OUT = 3.2mA, Vcc = 5.0V

TTL/CMOS Output

Voltage HIGH

3.5

OUT = -1.0mA, Vcc = 5.0V

Leakage Current

+0.05

+10

µA

ON/OFF = 0V, 0V ≤ V

OUT ≤ Vcc,

A = 25°C

EIA-232 OUTPUT

Output Voltage Swing

+5.0

All transmitter outputs loaded with

3kΩ to GND

Power-Off Output Resis-

tance

300

Ω

CC = 0V, VOUT=+2V

Output Short-Circuit Current

+18

Infinite Duration

EIA-232 INPUT

Input Voltage Range

-15

Input Threshold LOW

0.8

1.2

CC = 5V, TA = +25°C

Input Threshold HIGH

1.7

2.4

CC = 5V, TA = +25°C

Input Hysteresis

0.2

0.5

1.0

CC = 5V, TA = +25°C

Input Resistance

kΩ

IN = 15V to -15V

DyNAMIC CHARACTERISTICS

Propagation Delay

1.5

µs

RS-232 to TTL

Instantaneous Slew Rate

V/µs

L = 10pF, RL = 3kΩ - 7kΩ:

A = +25°C

Transition-Region Slew Rate

V/µs

CL = 2500pF, R

L = 3kΩ;

Measured from +3V to -3V or -3V

to +3V

Output Enable Time

400

Output Disable Time

250

POWER REQUIREMENTS

Vcc Power Supply Current

No load, T

A = +25°C; Vcc = 5V

Vcc Power Supply Current

All transmitters R

L = 3kΩ, TA = +25°C

Shutdown Supply Current

µA

Vcc = 5V, T

A = +25°C

SP385ECT-L/TR Folha de dados(PDF) 4 Page - Exar Corporation

SP385ECT-L/TR Folha de dados(HTML) 4 Page - Exar Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Folha de dados Download

Ligação URL