F81438 datasheet(12/20 Pages) FINTEK | Single 5V RS232/RS422/RS485 Multiprotocol

Part #	F81438

Description	Single 5V RS232/RS422/RS485 Multiprotocol

Download	20 Pages

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Manufacturer	FINTEK [Feature Integration Technology Inc.]

Direct Link	http://www.fintek.com.tw/eng

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12 / 20 page

F81438

Jan, 2012

V0.11P

12

Input Current

-

200

300

μA

DE = 0V, VIN =

12V, Full-Duplex.

Input Current

-

-200

-300

μA

DE = 0V, VIN = -

7V, Full-Duplex.

Input Resistance

30

KΩ

-7V ≤ VCM ≤ +12V

RS232 Single-Ended/RS422/485 Driver Outputs (TX_OUT, RS-232, Pin 7, 17, 18)

Output Voltage Swing

-

±5.0

±5.4

V

RLOAD = 3KΩ to

GND.

-

±6.0

V

No Load Output.

Output Short Circuit Current

-

±60

mA

VO = 0V.

Power Off Impedance

-

300

10M

Ω

Vcc = 0V;

VO =

±2V.

RS-485 / RS-422 Differential Driver Outputs (TX_OUT)

Differential Driver Output

-

2

Vcc

V

RLOAD = 100Ω

(RS422)

-

1.5

Vcc

V

RLOAD = 54Ω

(RS485)

-

1.5

Vcc

V

VCM = -7V

-

1.5

Vcc

V

VCM = +12V

Change In Magnitude of Differential

Output Voltage

-

-0.2

+0.2

V

RLOAD = 47Ω

Driver Common Mode Output

Volt- age

-

3

V

RLOAD = 47Ω

Change In Magnitude of Common

Mode Output Voltage

-

0.2

V

RLOAD = 47Ω

Driver Output Short Circuit Current

-

±250

mA

V = +12V to -7V

Output Leakage Current

-

±200

±300

uA

DE = 0V or

Shutdown, VO =

+12V to -7V.

T

DI

VCC

VOD

VOC

RL/2

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F81438 Datasheet(PDF) 12 Page - Feature Integration Technology Inc.

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